common : reimplement the logger

ggml-ci

.github/workflows/build.yml

@@ -23,6 +23,8 @@ env:
   BRANCH_NAME: ${{ github.head_ref || github.ref_name }}
   GGML_NLOOP: 3
   GGML_N_THREADS: 1
+  LLAMA_LOG_COLORS: 1
+  LLAMA_LOG_TIMESTAMPS: 1
 
 jobs:
   macOS-latest-cmake-arm64:

.github/workflows/server.yml

@@ -20,6 +20,11 @@ on:
     types: [opened, synchronize, reopened]
     paths: ['.github/workflows/server.yml', '**/CMakeLists.txt', '**/Makefile', '**/*.h', '**/*.hpp', '**/*.c', '**/*.cpp', '**/*.cu', '**/*.swift', '**/*.m', 'examples/server/**.*']
 
+env:
+  LLAMA_LOG_COLORS: 1
+  LLAMA_LOG_TIMESTAMPS: 1
+  LLAMA_LOG_VERBOSITY: 10
+
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}-${{ github.head_ref || github.run_id }}
   cancel-in-progress: true

Makefile

@@ -54,6 +54,7 @@ TEST_TARGETS = \
 	tests/test-grammar-parser \
 	tests/test-json-schema-to-grammar \
 	tests/test-llama-grammar \
+	tests/test-log \
 	tests/test-model-load-cancel \
 	tests/test-opt \
 	tests/test-quantize-fns \
@@ -931,6 +932,7 @@ OBJ_LLAMA = \
 OBJ_COMMON = \
 	common/common.o \
 	common/arg.o \
+	common/log.o \
 	common/console.o \
 	common/ngram-cache.o \
 	common/sampling.o \
@@ -1168,6 +1170,11 @@ common/arg.o: \
 	common/arg.h
 	$(CXX) $(CXXFLAGS) -c $< -o $@
 
+common/log.o: \
+	common/log.cpp \
+	common/log.h
+	$(CXX) $(CXXFLAGS) -c $< -o $@
+
 common/sampling.o: \
 	common/sampling.cpp \
 	common/sampling.h \
@@ -1346,7 +1353,7 @@ llama-cvector-generator: examples/cvector-generator/cvector-generator.cpp \
 	$(CXX) $(CXXFLAGS) $(filter-out %.h $<,$^) $(call GET_OBJ_FILE, $<) -o $@ $(LDFLAGS)
 
 llama-convert-llama2c-to-ggml: examples/convert-llama2c-to-ggml/convert-llama2c-to-ggml.cpp \
-	$(OBJ_GGML) $(OBJ_LLAMA)
+	$(OBJ_ALL)
 	$(CXX) $(CXXFLAGS) -c $< -o $(call GET_OBJ_FILE, $<)
 	$(CXX) $(CXXFLAGS) $(filter-out %.h $<,$^) $(call GET_OBJ_FILE, $<) -o $@ $(LDFLAGS)
 
@@ -1527,6 +1534,11 @@ tests/test-llama-grammar: tests/test-llama-grammar.cpp \
 	$(CXX) $(CXXFLAGS) -c $< -o $(call GET_OBJ_FILE, $<)
 	$(CXX) $(CXXFLAGS) $(filter-out %.h $<,$^) $(call GET_OBJ_FILE, $<) -o $@ $(LDFLAGS)
 
+tests/test-log: tests/test-log.cpp \
+	$(OBJ_ALL)
+	$(CXX) $(CXXFLAGS) -c $< -o $(call GET_OBJ_FILE, $<)
+	$(CXX) $(CXXFLAGS) $(filter-out %.h $<,$^) $(call GET_OBJ_FILE, $<) -o $@ $(LDFLAGS)
+
 tests/test-grammar-parser: tests/test-grammar-parser.cpp \
 	$(OBJ_ALL)
 	$(CXX) $(CXXFLAGS) -c $< -o $(call GET_OBJ_FILE, $<)

ci/run.sh

@@ -737,6 +737,8 @@ function gg_sum_embd_bge_small {
 
 ## main
 
+export LLAMA_LOG_TIMESTAMPS=1
+
 if [ -z ${GG_BUILD_LOW_PERF} ]; then
     # Create symlink: ./llama.cpp/models-mnt -> $MNT/models/models-mnt
     rm -rf ${SRC}/models-mnt

common/CMakeLists.txt

@@ -51,21 +51,23 @@ endif()
 set(TARGET common)
 
 add_library(${TARGET} STATIC
-    base64.hpp
-    common.h
-    common.cpp
-    arg.h
     arg.cpp
-    sampling.h
+    arg.h
-    sampling.cpp
+    base64.hpp
-    console.h
+    common.cpp
+    common.h
     console.cpp
-    json.hpp
+    console.h
     json-schema-to-grammar.cpp
-    train.h
+    json.hpp
-    train.cpp
+    log.cpp
-    ngram-cache.h
+    log.h
     ngram-cache.cpp
+    ngram-cache.h
+    sampling.cpp
+    sampling.h
+    train.cpp
+    train.h
     )
 
 if (BUILD_SHARED_LIBS)

common/arg.cpp

@@ -1,15 +1,17 @@
 #include "arg.h"
 
+#include "log.h"
 #include "sampling.h"
 
 #include <algorithm>
-#include <string>
+#include <climits>
-#include <vector>
+#include <cstdarg>
-#include <set>
 #include <fstream>
 #include <regex>
-#include <cstdarg>
+#include <set>
-#include <climits>
+#include <string>
+#include <thread>
+#include <vector>
 
 #include "json-schema-to-grammar.h"
 
@@ -417,7 +419,7 @@ gpt_params_context gpt_params_parser_init(gpt_params & params, llama_example ex,
         [](gpt_params & params) {
             params.use_color = true;
         }
-    ).set_examples({LLAMA_EXAMPLE_MAIN, LLAMA_EXAMPLE_INFILL}));
+    ).set_examples({LLAMA_EXAMPLE_MAIN, LLAMA_EXAMPLE_INFILL, LLAMA_EXAMPLE_SPECULATIVE, LLAMA_EXAMPLE_LOOKUP}));
     add_opt(llama_arg(
         {"-t", "--threads"}, "N",
         format("number of threads to use during generation (default: %d)", params.cpuparams.n_threads),
@@ -876,7 +878,7 @@ gpt_params_context gpt_params_parser_init(gpt_params & params, llama_example ex,
             params.input_prefix = value;
             params.enable_chat_template = false;
         }
-    ).set_examples({LLAMA_EXAMPLE_MAIN}));
+    ).set_examples({LLAMA_EXAMPLE_MAIN, LLAMA_EXAMPLE_INFILL}));
     add_opt(llama_arg(
         {"--in-suffix"}, "STRING",
         "string to suffix after user inputs with (default: empty)",
@@ -884,7 +886,7 @@ gpt_params_context gpt_params_parser_init(gpt_params & params, llama_example ex,
             params.input_suffix = value;
             params.enable_chat_template = false;
         }
-    ).set_examples({LLAMA_EXAMPLE_MAIN}));
+    ).set_examples({LLAMA_EXAMPLE_MAIN, LLAMA_EXAMPLE_INFILL}));
     add_opt(llama_arg(
         {"--no-warmup"},
         "skip warming up the model with an empty run",
@@ -1824,19 +1826,6 @@ gpt_params_context gpt_params_parser_init(gpt_params & params, llama_example ex,
             params.system_prompt = system_prompt;
         }
     ).set_examples({LLAMA_EXAMPLE_SERVER}));
-    add_opt(llama_arg(
-        {"--log-format"}, "{text, json}",
-        "log output format: json or text (default: json)",
-        [](gpt_params & params, const std::string & value) {
-            if (value == "json") {
-                params.log_json = true;
-            } else if (value == "text") {
-                params.log_json = false;
-            } else {
-                throw std::invalid_argument("invalid value");
-            }
-        }
-    ).set_examples({LLAMA_EXAMPLE_SERVER}));
     add_opt(llama_arg(
         {"--metrics"},
         format("enable prometheus compatible metrics endpoint (default: %s)", params.endpoint_metrics ? "enabled" : "disabled"),
@@ -1956,39 +1945,48 @@ gpt_params_context gpt_params_parser_init(gpt_params & params, llama_example ex,
             else { std::invalid_argument("invalid value"); }
         }
     ).set_examples({LLAMA_EXAMPLE_BENCH}));
-#ifndef LOG_DISABLE_LOGS
-    // TODO: make this looks less weird
-    add_opt(llama_arg(
-        {"--log-test"},
-        "Log test",
-        [](gpt_params &) { log_param_single_parse("--log-test"); }
-    ));
     add_opt(llama_arg(
         {"--log-disable"},
         "Log disable",
-        [](gpt_params &) { log_param_single_parse("--log-disable"); }
+        [](gpt_params &) {
-    ));
+            gpt_log_pause(gpt_log_main());
-    add_opt(llama_arg(
+        }
-        {"--log-enable"},
-        "Log enable",
-        [](gpt_params &) { log_param_single_parse("--log-enable"); }
-    ));
-    add_opt(llama_arg(
-        {"--log-new"},
-        "Log new",
-        [](gpt_params &) { log_param_single_parse("--log-new"); }
-    ));
-    add_opt(llama_arg(
-        {"--log-append"},
-        "Log append",
-        [](gpt_params &) { log_param_single_parse("--log-append"); }
     ));
     add_opt(llama_arg(
         {"--log-file"}, "FNAME",
-        "Log file",
+        "Log to file",
-        [](gpt_params &, const std::string & value) { log_param_pair_parse(false, "--log-file", value); }
+        [](gpt_params &, const std::string & value) {
+            gpt_log_set_file(gpt_log_main(), value.c_str());
+        }
     ));
-#endif // LOG_DISABLE_LOGS
+    add_opt(llama_arg(
+        {"--log-colors"},
+        "Enable colored logging",
+        [](gpt_params &) {
+            gpt_log_set_colors(gpt_log_main(), true);
+        }
+    ).set_env("LLAMA_LOG_COLORS"));
+    add_opt(llama_arg(
+        {"-lv", "--log-verbose"},
+        "Set verbosity level to infinity (i.e. log all messages, useful for debugging)",
+        [](gpt_params &) {
+            gpt_log_set_verbosity_thold(INT_MAX);
+        }
+    ));
+    add_opt(llama_arg(
+        {"--log-verbosity"}, "THOLD",
+        "Set the verbosity threshold. Messages with a higher verbosity will be ignored.",
+        [](gpt_params &, int value) {
+            gpt_log_set_verbosity_thold(value);
+        }
+    ).set_env("LLAMA_LOG_VERBOSITY"));
+    add_opt(llama_arg(
+        {"--log-timestamps"},
+        "Enable timestamps in log messages",
+        [](gpt_params &) {
+            gpt_log_set_timestamps(gpt_log_main(), true);
+        }
+    ).set_env("LLAMA_LOG_TIMESTAMPS"));
 
     return ctx_arg;
 }

common/common.cpp

@@ -3,6 +3,7 @@
 #endif
 
 #include "common.h"
+#include "log.h"
 // Change JSON_ASSERT from assert() to GGML_ASSERT:
 #define JSON_ASSERT GGML_ASSERT
 #include "json.hpp"
@@ -25,6 +26,7 @@
 #include <unordered_map>
 #include <unordered_set>
 #include <vector>
+#include <thread>
 
 #if defined(__APPLE__) && defined(__MACH__)
 #include <sys/types.h>
@@ -48,7 +50,6 @@
 #if defined(LLAMA_USE_CURL)
 #include <curl/curl.h>
 #include <curl/easy.h>
-#include <thread>
 #include <future>
 #endif
 
@@ -226,7 +227,7 @@ bool set_process_priority(enum ggml_sched_priority prio) {
     }
 
     if (!SetPriorityClass(GetCurrentProcess(), p)) {
-        fprintf(stderr, "warn: failed to set process priority class %d : (%d)\n", prio, (int) GetLastError());
+        LOG_WRN("failed to set process priority class %d : (%d)\n", prio, (int) GetLastError());
         return false;
     }
 
@@ -251,7 +252,7 @@ bool set_process_priority(enum ggml_sched_priority prio) {
     }
 
     if (!setpriority(PRIO_PROCESS, 0, p)) {
-        fprintf(stderr, "warn: failed to set process priority %d : %s (%d)\n", prio, strerror(errno), errno);
+        LOG_WRN("failed to set process priority %d : %s (%d)\n", prio, strerror(errno), errno);
         return false;
     }
     return true;
@@ -284,14 +285,14 @@ void postprocess_cpu_params(cpu_params& cpuparams, const cpu_params* role_model)
 
     if (n_set && n_set < cpuparams.n_threads) {
         // Not enough set bits, may experience performance issues.
-        fprintf(stderr, "warn: Not enough set bits in CPU mask (%d) to satisfy requested thread count: %d\n", n_set, cpuparams.n_threads);
+        LOG_WRN("Not enough set bits in CPU mask (%d) to satisfy requested thread count: %d\n", n_set, cpuparams.n_threads);
     }
 }
 
 bool parse_cpu_range(const std::string & range, bool (&boolmask)[GGML_MAX_N_THREADS]) {
     size_t dash_loc = range.find('-');
     if (dash_loc == std::string::npos) {
-        fprintf(stderr, "Format of CPU range is invalid! Expected [<start>]-[<end>].\n");
+        LOG_ERR("Format of CPU range is invalid! Expected [<start>]-[<end>].\n");
         return false;
     }
 
@@ -303,7 +304,7 @@ bool parse_cpu_range(const std::string & range, bool (&boolmask)[GGML_MAX_N_THRE
     } else {
         start_i = std::stoull(range.substr(0, dash_loc));
         if (start_i >= GGML_MAX_N_THREADS) {
-            fprintf(stderr, "Start index out of bounds!\n");
+            LOG_ERR("Start index out of bounds!\n");
             return false;
         }
     }
@@ -313,7 +314,7 @@ bool parse_cpu_range(const std::string & range, bool (&boolmask)[GGML_MAX_N_THRE
     } else {
         end_i = std::stoull(range.substr(dash_loc + 1));
         if (end_i >= GGML_MAX_N_THREADS) {
-            fprintf(stderr, "End index out of bounds!\n");
+            LOG_ERR("End index out of bounds!\n");
             return false;
         }
     }
@@ -348,7 +349,7 @@ bool parse_cpu_mask(const std::string & mask, bool (&boolmask)[GGML_MAX_N_THREAD
         } else if (c >= 'A' && c <= 'F') {
             id -= 'A' - 10;
         } else {
-            fprintf(stderr, "Invalid hex character '%c' at position %d\n", c, int32_t(i));
+            LOG_ERR("Invalid hex character '%c' at position %d\n", c, int32_t(i));
             return false;
         }
 
@@ -361,6 +362,17 @@ bool parse_cpu_mask(const std::string & mask, bool (&boolmask)[GGML_MAX_N_THREAD
     return true;
 }
 
+void gpt_init() {
+    llama_log_set([](ggml_log_level level, const char * text, void * /*user_data*/) {
+        if (LOG_DEFAULT_LLAMA <= gpt_log_verbosity_thold) {
+            gpt_log_add(gpt_log_main(), level, "%s", text);
+        }
+    }, NULL);
+
+
+    LOG_INF("build: %d (%s) with %s for %s\n", LLAMA_BUILD_NUMBER, LLAMA_COMMIT, LLAMA_COMPILER, LLAMA_BUILD_TARGET);
+}
+
 std::string gpt_params_get_system_info(const gpt_params & params) {
     std::ostringstream os;
 
@@ -441,6 +453,94 @@ void string_replace_all(std::string & s, const std::string & search, const std::
     s = std::move(builder);
 }
 
+std::string string_from(bool value) {
+    return value ? "true" : "false";
+}
+
+std::string string_from(const std::vector<int> & values) {
+    std::stringstream buf;
+
+    buf << "[ ";
+    bool first = true;
+    for (auto e : values) {
+        if (first) {
+            first = false;
+        } else {
+            buf << ", ";
+        }
+        buf << std::to_string(e);
+    }
+    buf << " ]";
+
+    return buf.str();
+}
+
+std::string string_from(const struct llama_context * ctx, const std::vector<llama_token> & tokens) {
+    std::stringstream buf;
+
+    buf << "[ ";
+
+    bool first = true;
+    for (const auto & token : tokens) {
+        if (!first) {
+            buf << ", ";
+        } else {
+            first = false;
+        }
+
+        auto detokenized = llama_token_to_piece(ctx, token);
+
+        detokenized.erase(
+            std::remove_if(
+                detokenized.begin(),
+                detokenized.end(),
+                [](const unsigned char c) { return !std::isprint(c); }),
+            detokenized.end());
+
+        buf << "'" << detokenized << "'"
+            << ":" << std::to_string(token);
+    }
+
+    buf << " ]";
+
+    return buf.str();
+}
+
+std::string string_from(const struct llama_context * ctx, const struct llama_batch & batch) {
+    std::stringstream buf;
+
+    buf << "[ ";
+
+    bool first = true;
+    for (int i = 0; i < batch.n_tokens; ++i) {
+        if (!first) {
+            buf << ", ";
+        } else {
+            first = false;
+        }
+
+        auto detokenized = llama_token_to_piece(ctx, batch.token[i]);
+
+        detokenized.erase(
+                std::remove_if(
+                    detokenized.begin(),
+                    detokenized.end(),
+                    [](const unsigned char c) { return !std::isprint(c); }),
+                detokenized.end());
+
+        buf << "\n" << std::to_string(i)
+            << ":token '" << detokenized << "'"
+            << ":pos " << std::to_string(batch.pos[i])
+            << ":n_seq_id  " << std::to_string(batch.n_seq_id[i])
+            << ":seq_id " << std::to_string(batch.seq_id[i][0])
+            << ":logits " << std::to_string(batch.logits[i]);
+    }
+
+    buf << " ]";
+
+    return buf.str();
+}
+
 void string_process_escapes(std::string & input) {
     std::size_t input_len = input.length();
     std::size_t output_idx = 0;
@@ -481,7 +581,7 @@ void string_process_escapes(std::string & input) {
 bool string_parse_kv_override(const char * data, std::vector<llama_model_kv_override> & overrides) {
     const char * sep = strchr(data, '=');
     if (sep == nullptr || sep - data >= 128) {
-        fprintf(stderr, "%s: malformed KV override '%s'\n", __func__, data);
+        LOG_ERR("%s: malformed KV override '%s'\n", __func__, data);
         return false;
     }
     llama_model_kv_override kvo;
@@ -504,20 +604,20 @@ bool string_parse_kv_override(const char * data, std::vector<llama_model_kv_over
         } else if (std::strcmp(sep, "false") == 0) {
             kvo.val_bool = false;
         } else {
-            fprintf(stderr, "%s: invalid boolean value for KV override '%s'\n", __func__, data);
+            LOG_ERR("%s: invalid boolean value for KV override '%s'\n", __func__, data);
             return false;
         }
     } else if (strncmp(sep, "str:", 4) == 0) {
         sep += 4;
         kvo.tag = LLAMA_KV_OVERRIDE_TYPE_STR;
         if (strlen(sep) > 127) {
-            fprintf(stderr, "%s: malformed KV override '%s', value cannot exceed 127 chars\n", __func__, data);
+            LOG_ERR("%s: malformed KV override '%s', value cannot exceed 127 chars\n", __func__, data);
             return false;
         }
         strncpy(kvo.val_str, sep, 127);
         kvo.val_str[127] = '\0';
     } else {
-        fprintf(stderr, "%s: invalid type for KV override '%s'\n", __func__, data);
+        LOG_ERR("%s: invalid type for KV override '%s'\n", __func__, data);
         return false;
     }
     overrides.emplace_back(std::move(kvo));
@@ -729,7 +829,7 @@ struct llama_init_result llama_init_from_gpt_params(gpt_params & params) {
     }
 
     if (model == NULL) {
-        fprintf(stderr, "%s: error: failed to load model '%s'\n", __func__, params.model.c_str());
+        LOG_ERR("%s: failed to load model '%s'\n", __func__, params.model.c_str());
         return iparams;
     }
 
@@ -737,7 +837,7 @@ struct llama_init_result llama_init_from_gpt_params(gpt_params & params) {
 
     llama_context * lctx = llama_new_context_with_model(model, cparams);
     if (lctx == NULL) {
-        fprintf(stderr, "%s: error: failed to create context with model '%s'\n", __func__, params.model.c_str());
+        LOG_ERR("%s: failed to create context with model '%s'\n", __func__, params.model.c_str());
         llama_free_model(model);
         return iparams;
     }
@@ -773,7 +873,7 @@ struct llama_init_result llama_init_from_gpt_params(gpt_params & params) {
         loaded_la.scale = la.scale;
         loaded_la.adapter = llama_lora_adapter_init(model, la.path.c_str());
         if (loaded_la.adapter == nullptr) {
-            fprintf(stderr, "%s: error: failed to apply lora adapter '%s'\n", __func__, la.path.c_str());
+            LOG_ERR("%s: failed to apply lora adapter '%s'\n", __func__, la.path.c_str());
             llama_free(lctx);
             llama_free_model(model);
             return iparams;
@@ -785,12 +885,12 @@ struct llama_init_result llama_init_from_gpt_params(gpt_params & params) {
     }
 
     if (params.sparams.ignore_eos && llama_token_eos(model) == -1) {
-        fprintf(stderr, "%s: warning: model does not have an EOS token, ignoring --ignore-eos\n", __func__);
+        LOG_WRN("%s: warning: model does not have an EOS token, ignoring --ignore-eos\n", __func__);
         params.sparams.ignore_eos = false;
     }
 
     if (params.warmup) {
-        LOG("warming up the model with an empty run\n");
+        LOG_WRN("%s: warming up the model with an empty run - please wait ... (--no-warmup to disable)\n", __func__);
 
         std::vector<llama_token> tmp;
         llama_token bos = llama_token_bos(model);
@@ -955,7 +1055,7 @@ static bool curl_perform_with_retry(const std::string& url, CURL* curl, int max_
     int remaining_attempts = max_attempts;
 
     while (remaining_attempts > 0) {
-        fprintf(stderr, "%s: Trying to download from %s (attempt %d of %d)...\n", __func__ , url.c_str(), max_attempts - remaining_attempts + 1, max_attempts);
+        LOG_INF("%s: Trying to download from %s (attempt %d of %d)...\n", __func__ , url.c_str(), max_attempts - remaining_attempts + 1, max_attempts);
 
         CURLcode res = curl_easy_perform(curl);
         if (res == CURLE_OK) {
@@ -963,13 +1063,14 @@ static bool curl_perform_with_retry(const std::string& url, CURL* curl, int max_
         }
 
         int exponential_backoff_delay = std::pow(retry_delay_seconds, max_attempts - remaining_attempts) * 1000;
-        fprintf(stderr, "%s: curl_easy_perform() failed: %s, retrying after %d milliseconds...\n", __func__, curl_easy_strerror(res), exponential_backoff_delay);
+        LOG_WRN("%s: curl_easy_perform() failed: %s, retrying after %d milliseconds...\n", __func__, curl_easy_strerror(res), exponential_backoff_delay);
 
         remaining_attempts--;
         std::this_thread::sleep_for(std::chrono::milliseconds(exponential_backoff_delay));
     }
 
-    fprintf(stderr, "%s: curl_easy_perform() failed after %d attempts\n", __func__, max_attempts);
+    LOG_ERR("%s: curl_easy_perform() failed after %d attempts\n", __func__, max_attempts);
+
     return false;
 }
 
@@ -978,7 +1079,7 @@ static bool llama_download_file(const std::string & url, const std::string & pat
     // Initialize libcurl
     std::unique_ptr<CURL, decltype(&curl_easy_cleanup)> curl(curl_easy_init(), &curl_easy_cleanup);
     if (!curl) {
-        fprintf(stderr, "%s: error initializing libcurl\n", __func__);
+        LOG_ERR("%s: error initializing libcurl\n", __func__);
         return false;
     }
 
@@ -1019,11 +1120,11 @@ static bool llama_download_file(const std::string & url, const std::string & pat
         if (metadata_in.good()) {
             try {
                 metadata_in >> metadata;
-                fprintf(stderr, "%s: previous metadata file found %s: %s\n", __func__, metadata_path.c_str(), metadata.dump().c_str());
+                LOG_INF("%s: previous metadata file found %s: %s\n", __func__, metadata_path.c_str(), metadata.dump().c_str());
                 if (metadata.contains("url") && metadata.at("url").is_string()) {
                     auto previous_url = metadata.at("url").get<std::string>();
                     if (previous_url != url) {
-                        fprintf(stderr, "%s: Model URL mismatch: %s != %s\n", __func__, url.c_str(), previous_url.c_str());
+                        LOG_ERR("%s: Model URL mismatch: %s != %s\n", __func__, url.c_str(), previous_url.c_str());
                         return false;
                     }
                 }
@@ -1034,12 +1135,12 @@ static bool llama_download_file(const std::string & url, const std::string & pat
                     last_modified = metadata.at("lastModified");
                 }
             } catch (const nlohmann::json::exception & e) {
-                fprintf(stderr, "%s: error reading metadata file %s: %s\n", __func__, metadata_path.c_str(), e.what());
+            LOG_ERR("%s: error reading metadata file %s: %s\n", __func__, metadata_path.c_str(), e.what());
                 return false;
             }
         }
     } else {
-        fprintf(stderr, "%s: no previous model file found %s\n", __func__, path.c_str());
+        LOG_INF("%s: no previous model file found %s\n", __func__, path.c_str());
     }
 
     // Send a HEAD request to retrieve the etag and last-modified headers
@@ -1087,26 +1188,26 @@ static bool llama_download_file(const std::string & url, const std::string & pat
             // HEAD not supported, we don't know if the file has changed
             // force trigger downloading
             force_download = true;
-            fprintf(stderr, "%s: HEAD invalid http status code received: %ld\n", __func__, http_code);
+            LOG_ERR("%s: HEAD invalid http status code received: %ld\n", __func__, http_code);
         }
     }
 
     bool should_download = !file_exists || force_download;
     if (!should_download) {
         if (!etag.empty() && etag != headers.etag) {
-            fprintf(stderr, "%s: ETag header is different (%s != %s): triggering a new download\n", __func__, etag.c_str(), headers.etag.c_str());
+            LOG_WRN("%s: ETag header is different (%s != %s): triggering a new download\n", __func__, etag.c_str(), headers.etag.c_str());
             should_download = true;
         } else if (!last_modified.empty() && last_modified != headers.last_modified) {
-            fprintf(stderr, "%s: Last-Modified header is different (%s != %s): triggering a new download\n", __func__, last_modified.c_str(), headers.last_modified.c_str());
+            LOG_WRN("%s: Last-Modified header is different (%s != %s): triggering a new download\n", __func__, last_modified.c_str(), headers.last_modified.c_str());
             should_download = true;
         }
     }
     if (should_download) {
         std::string path_temporary = path + ".downloadInProgress";
         if (file_exists) {
-            fprintf(stderr, "%s: deleting previous downloaded file: %s\n", __func__, path.c_str());
+            LOG_WRN("%s: deleting previous downloaded file: %s\n", __func__, path.c_str());
             if (remove(path.c_str()) != 0) {
-                fprintf(stderr, "%s: unable to delete file: %s\n", __func__, path.c_str());
+                LOG_ERR("%s: unable to delete file: %s\n", __func__, path.c_str());
                 return false;
             }
         }
@@ -1121,7 +1222,7 @@ static bool llama_download_file(const std::string & url, const std::string & pat
 
         std::unique_ptr<FILE, FILE_deleter> outfile(fopen(path_temporary.c_str(), "wb"));
         if (!outfile) {
-            fprintf(stderr, "%s: error opening local file for writing: %s\n", __func__, path.c_str());
+            LOG_ERR("%s: error opening local file for writing: %s\n", __func__, path.c_str());
             return false;
         }
 
@@ -1152,7 +1253,7 @@ static bool llama_download_file(const std::string & url, const std::string & pat
         };
 
         // start the download
-        fprintf(stderr, "%s: trying to download model from %s to %s (server_etag:%s, server_last_modified:%s)...\n", __func__,
+        LOG_INF("%s: trying to download model from %s to %s (server_etag:%s, server_last_modified:%s)...\n", __func__,
             llama_download_hide_password_in_url(url).c_str(), path.c_str(), headers.etag.c_str(), headers.last_modified.c_str());
         bool was_perform_successful = curl_perform_with_retry(url, curl.get(), CURL_MAX_RETRY, CURL_RETRY_DELAY_SECONDS);
         if (!was_perform_successful) {
@@ -1162,7 +1263,7 @@ static bool llama_download_file(const std::string & url, const std::string & pat
         long http_code = 0;
         curl_easy_getinfo (curl.get(), CURLINFO_RESPONSE_CODE, &http_code);
         if (http_code < 200 || http_code >= 400) {
-            fprintf(stderr, "%s: invalid http status code received: %ld\n", __func__, http_code);
+            LOG_ERR("%s: invalid http status code received: %ld\n", __func__, http_code);
             return false;
         }
 
@@ -1176,10 +1277,10 @@ static bool llama_download_file(const std::string & url, const std::string & pat
             {"lastModified", headers.last_modified}
         });
         std::ofstream(metadata_path) << metadata.dump(4);
-        fprintf(stderr, "%s: file metadata saved: %s\n", __func__, metadata_path.c_str());
+        LOG_INF("%s: file metadata saved: %s\n", __func__, metadata_path.c_str());
 
         if (rename(path_temporary.c_str(), path.c_str()) != 0) {
-            fprintf(stderr, "%s: unable to rename file: %s to %s\n", __func__, path_temporary.c_str(), path.c_str());
+            LOG_ERR("%s: unable to rename file: %s to %s\n", __func__, path_temporary.c_str(), path.c_str());
             return false;
         }
     }
@@ -1194,7 +1295,7 @@ struct llama_model * llama_load_model_from_url(
         const struct llama_model_params & params) {
     // Basic validation of the model_url
     if (!model_url || strlen(model_url) == 0) {
-        fprintf(stderr, "%s: invalid model_url\n", __func__);
+        LOG_ERR("%s: invalid model_url\n", __func__);
         return NULL;
     }
 
@@ -1211,7 +1312,7 @@ struct llama_model * llama_load_model_from_url(
         };
         auto * ctx_gguf = gguf_init_from_file(path_model, gguf_params);
         if (!ctx_gguf) {
-            fprintf(stderr, "\n%s:  failed to load input GGUF from %s\n", __func__, path_model);
+            LOG_ERR("\n%s:  failed to load input GGUF from %s\n", __func__, path_model);
             return NULL;
         }
 
@@ -1231,14 +1332,12 @@ struct llama_model * llama_load_model_from_url(
         // and extract split URL and PATH prefixes
         {
             if (!llama_split_prefix(split_prefix, sizeof(split_prefix), path_model, 0, n_split)) {
-                fprintf(stderr, "\n%s: unexpected model file name: %s"
+                LOG_ERR("\n%s: unexpected model file name: %s n_split=%d\n", __func__, path_model, n_split);
-                                " n_split=%d\n", __func__, path_model, n_split);
                 return NULL;
             }
 
             if (!llama_split_prefix(split_url_prefix, sizeof(split_url_prefix), model_url, 0, n_split)) {
-                fprintf(stderr, "\n%s: unexpected model url: %s"
+                LOG_ERR("\n%s: unexpected model url: %s n_split=%d\n", __func__, model_url, n_split);
-                                " n_split=%d\n", __func__, model_url, n_split);
                 return NULL;
             }
         }
@@ -1298,7 +1397,7 @@ struct llama_model * llama_load_model_from_url(
         const char * /*path_model*/,
         const char * /*hf_token*/,
         const struct llama_model_params & /*params*/) {
-    fprintf(stderr, "%s: llama.cpp built without libcurl, downloading from an url not supported.\n", __func__);
+    LOG_WRN("%s: llama.cpp built without libcurl, downloading from an url not supported.\n", __func__);
     return nullptr;
 }
 
@@ -1308,7 +1407,7 @@ struct llama_model * llama_load_model_from_hf(
         const char * /*path_model*/,
         const char * /*hf_token*/,
         const struct llama_model_params & /*params*/) {
-    fprintf(stderr, "%s: llama.cpp built without libcurl, downloading from Hugging Face not supported.\n", __func__);
+    LOG_WRN("%s: llama.cpp built without libcurl, downloading from Hugging Face not supported.\n", __func__);
     return nullptr;
 }
 
@@ -1636,13 +1735,13 @@ static llama_control_vector_data llama_control_vector_load_one(const llama_contr
     };
     struct gguf_context * ctx_gguf = gguf_init_from_file(load_info.fname.c_str(), meta_gguf_params);
     if (!ctx_gguf) {
-        fprintf(stderr, "%s: failed to load control vector file from %s\n", __func__, load_info.fname.c_str());
+        LOG_ERR("%s: failed to load control vector file from %s\n", __func__, load_info.fname.c_str());
         return result;
     }
 
     int32_t n_tensors = gguf_get_n_tensors(ctx_gguf);
     if (n_tensors == 0) {
-        fprintf(stderr, "%s: no direction tensors found in %s\n", __func__, load_info.fname.c_str());
+        LOG_WRN("%s: no direction tensors found in %s\n", __func__, load_info.fname.c_str());
     }
 
     for (int i = 0; i < n_tensors; i++) {
@@ -1660,23 +1759,23 @@ static llama_control_vector_data llama_control_vector_load_one(const llama_contr
             }
         }
         if (layer_idx < 0) {
-            fprintf(stderr, "%s: invalid/unparsable direction tensor layer index in %s\n", __func__, load_info.fname.c_str());
+            LOG_ERR("%s: invalid/unparsable direction tensor layer index in %s\n", __func__, load_info.fname.c_str());
             result.n_embd = -1;
             break;
         } else if (layer_idx == 0) {
-            fprintf(stderr, "%s: invalid (zero) direction tensor layer index in %s\n", __func__, load_info.fname.c_str());
+            LOG_ERR("%s: invalid (zero) direction tensor layer index in %s\n", __func__, load_info.fname.c_str());
             result.n_embd = -1;
             break;
         }
 
         struct ggml_tensor * tensor = ggml_get_tensor(ctx, name.c_str());
         if (tensor->type != GGML_TYPE_F32) {
-            fprintf(stderr, "%s: invalid (non-F32) direction tensor type in %s\n", __func__, load_info.fname.c_str());
+            LOG_ERR("%s: invalid (non-F32) direction tensor type in %s\n", __func__, load_info.fname.c_str());
             result.n_embd = -1;
             break;
         }
         if (ggml_n_dims(tensor) != 1) {
-            fprintf(stderr, "%s: invalid (non-1D) direction tensor shape in %s\n", __func__, load_info.fname.c_str());
+            LOG_ERR("%s: invalid (non-1D) direction tensor shape in %s\n", __func__, load_info.fname.c_str());
             result.n_embd = -1;
             break;
         }
@@ -1684,7 +1783,7 @@ static llama_control_vector_data llama_control_vector_load_one(const llama_contr
         if (result.n_embd == -1) {
             result.n_embd = ggml_nelements(tensor);
         } else if (ggml_nelements(tensor) != result.n_embd) {
-            fprintf(stderr, "%s: direction tensor in %s does not match previous dimensions\n", __func__, load_info.fname.c_str());
+            LOG_ERR("%s: direction tensor in %s does not match previous dimensions\n", __func__, load_info.fname.c_str());
             result.n_embd = -1;
             break;
         }
@@ -1701,7 +1800,7 @@ static llama_control_vector_data llama_control_vector_load_one(const llama_contr
     }
 
     if (result.n_embd == -1) {
-        fprintf(stderr, "%s: skipping %s due to invalid direction tensors\n", __func__, load_info.fname.c_str());
+        LOG_WRN("%s: skipping %s due to invalid direction tensors\n", __func__, load_info.fname.c_str());
         result.data.clear();
     }
 
@@ -1722,7 +1821,7 @@ llama_control_vector_data llama_control_vector_load(const std::vector<llama_cont
             break;
         }
         if (result.n_embd != -1 && result.n_embd != cur.n_embd) {
-            fprintf(stderr, "%s: control vectors in %s does not match previous dimensions\n", __func__, info.fname.c_str());
+            LOG_ERR("%s: control vectors in %s does not match previous dimensions\n", __func__, info.fname.c_str());
             result.n_embd = -1;
             break;
         }
@@ -1738,7 +1837,7 @@ llama_control_vector_data llama_control_vector_load(const std::vector<llama_cont
     }
 
     if (result.n_embd == -1) {
-        fprintf(stderr, "%s: no valid control vector files passed\n", __func__);
+        LOG_ERR("%s: no valid control vector files passed\n", __func__);
         result.data.clear();
     }
 

common/common.h

@@ -4,11 +4,9 @@
 
 #include "llama.h"
 
-#define LOG_NO_FILE_LINE_FUNCTION
-#include "log.h"
-
 #include <string>
 #include <vector>
+#include <sstream>
 
 #ifdef _WIN32
 #define DIRECTORY_SEPARATOR '\\'
@@ -343,6 +341,9 @@ struct gpt_params {
     bool batched_bench_output_jsonl = false;
 };
 
+// call once at the start of a program using common
+void gpt_init();
+
 std::string gpt_params_get_system_info(const gpt_params & params);
 
 bool parse_cpu_range(const std::string& range, bool(&boolmask)[GGML_MAX_N_THREADS]);
@@ -378,6 +379,11 @@ static std::vector<T> string_split(const std::string & str, char delim) {
 bool string_parse_kv_override(const char * data, std::vector<llama_model_kv_override> & overrides);
 void string_process_escapes(std::string & input);
 
+std::string string_from(bool value);
+std::string string_from(const std::vector<int> & values);
+std::string string_from(const struct llama_context * ctx, const std::vector<llama_token> & tokens);
+std::string string_from(const struct llama_context * ctx, const struct llama_batch & batch);
+
 //
 // Filesystem utils
 //

common/log.cpp

@@ -0,0 +1,373 @@
+#include "log.h"
+
+#include <condition_variable>
+#include <cstdarg>
+#include <cstdio>
+#include <mutex>
+#include <sstream>
+#include <thread>
+#include <vector>
+
+int gpt_log_verbosity_thold = LOG_DEFAULT_LLAMA;
+
+void gpt_log_set_verbosity_thold(int verbosity) {
+    gpt_log_verbosity_thold = verbosity;
+}
+
+#define LOG_COL_DEFAULT "\033[0m"
+#define LOG_COL_BOLD    "\033[1m"
+#define LOG_COL_RED     "\033[31m"
+#define LOG_COL_GREEN   "\033[32m"
+#define LOG_COL_YELLOW  "\033[33m"
+#define LOG_COL_BLUE    "\033[34m"
+#define LOG_COL_MAGENTA "\033[35m"
+#define LOG_COL_CYAN    "\033[36m"
+#define LOG_COL_WHITE   "\033[37m"
+
+static int64_t t_us() {
+    return std::chrono::duration_cast<std::chrono::microseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
+}
+
+// colors
+enum gpt_log_col : int {
+    GPT_LOG_COL_DEFAULT = 0,
+    GPT_LOG_COL_BOLD,
+    GPT_LOG_COL_RED,
+    GPT_LOG_COL_GREEN,
+    GPT_LOG_COL_YELLOW,
+    GPT_LOG_COL_BLUE,
+    GPT_LOG_COL_MAGENTA,
+    GPT_LOG_COL_CYAN,
+    GPT_LOG_COL_WHITE,
+};
+
+// disable colors by default
+static std::vector<const char *> g_col = {
+    "",
+    "",
+    "",
+    "",
+    "",
+    "",
+    "",
+    "",
+    "",
+};
+
+struct gpt_log_entry {
+    enum ggml_log_level level;
+
+    int64_t timestamp;
+
+    std::vector<char> msg;
+
+    // signals the worker thread to stop
+    bool is_end;
+
+    void print(FILE * file = nullptr) const {
+        FILE * fcur = file;
+        if (!fcur) {
+            // stderr displays DBG messages only when the verbosity is high
+            // these messages can still be logged to a file
+            if (level == GGML_LOG_LEVEL_DEBUG && gpt_log_verbosity_thold < LOG_DEFAULT_DEBUG) {
+                return;
+            }
+
+            fcur = stdout;
+
+            if (level != GGML_LOG_LEVEL_NONE) {
+                fcur = stderr;
+            }
+        }
+
+        if (level != GGML_LOG_LEVEL_NONE) {
+            if (timestamp) {
+                // [M.s.ms.us]
+                fprintf(fcur, "%s%d.%02d.%03d.%03d%s ",
+                        g_col[GPT_LOG_COL_BLUE],
+                        (int) (timestamp / 1000000 / 60),
+                        (int) (timestamp / 1000000 % 60),
+                        (int) (timestamp / 1000 % 1000),
+                        (int) (timestamp % 1000),
+                        g_col[GPT_LOG_COL_DEFAULT]);
+            }
+
+            switch (level) {
+                case GGML_LOG_LEVEL_INFO:  fprintf(fcur, "%sI %s", g_col[GPT_LOG_COL_GREEN],   g_col[GPT_LOG_COL_DEFAULT]); break;
+                case GGML_LOG_LEVEL_WARN:  fprintf(fcur, "%sW %s", g_col[GPT_LOG_COL_MAGENTA], ""                        ); break;
+                case GGML_LOG_LEVEL_ERROR: fprintf(fcur, "%sE %s", g_col[GPT_LOG_COL_RED],     ""                        ); break;
+                case GGML_LOG_LEVEL_DEBUG: fprintf(fcur, "%sD %s", g_col[GPT_LOG_COL_YELLOW],  ""                        ); break;
+                default:
+                    break;
+            }
+        }
+
+        fprintf(fcur, "%s", msg.data());
+
+        if (level == GGML_LOG_LEVEL_WARN || level == GGML_LOG_LEVEL_ERROR || level == GGML_LOG_LEVEL_DEBUG) {
+            fprintf(fcur, "%s", g_col[GPT_LOG_COL_DEFAULT]);
+        }
+
+        fflush(fcur);
+    }
+};
+
+struct gpt_log {
+    gpt_log(size_t capacity) {
+        file = nullptr;
+        timestamps = false;
+        running = false;
+        t_start = t_us();
+        entries.resize(capacity);
+        for (auto & entry : entries) {
+            entry.msg.resize(256);
+        }
+        head = 0;
+        tail = 0;
+
+        resume();
+    }
+
+    ~gpt_log() {
+        pause();
+        if (file) {
+            fclose(file);
+        }
+    }
+
+private:
+    std::mutex mtx;
+    std::thread thrd;
+    std::condition_variable cv;
+
+    FILE * file;
+
+    bool timestamps;
+    bool running;
+
+    int64_t t_start;
+
+    // ring buffer of entries
+    std::vector<gpt_log_entry> entries;
+    size_t head;
+    size_t tail;
+
+    // worker thread copies into this
+    gpt_log_entry cur;
+
+public:
+    void add(enum ggml_log_level level, const char * fmt, va_list args) {
+        std::lock_guard<std::mutex> lock(mtx);
+
+        if (!running) {
+            return;
+        }
+
+        auto & entry = entries[tail];
+
+        {
+            // cannot use args twice, so make a copy in case we need to expand the buffer
+            va_list args_copy;
+            va_copy(args_copy, args);
+
+#if 1
+            const size_t n = vsnprintf(entry.msg.data(), entry.msg.size(), fmt, args);
+            if (n >= entry.msg.size()) {
+                entry.msg.resize(n + 1);
+                vsnprintf(entry.msg.data(), entry.msg.size(), fmt, args_copy);
+            }
+#else
+            // hack for bolding arguments
+
+            std::stringstream ss;
+            for (int i = 0; fmt[i] != 0; i++) {
+                if (fmt[i] == '%') {
+                    ss << LOG_COL_BOLD;
+                    while (fmt[i] != ' ' && fmt[i] != ')' && fmt[i] != ']' && fmt[i] != 0) ss << fmt[i++];
+                    ss << LOG_COL_DEFAULT;
+                    if (fmt[i] == 0) break;
+                }
+                ss << fmt[i];
+            }
+            const size_t n = vsnprintf(entry.msg.data(), entry.msg.size(), ss.str().c_str(), args);
+            if (n >= entry.msg.size()) {
+                entry.msg.resize(n + 1);
+                vsnprintf(entry.msg.data(), entry.msg.size(), ss.str().c_str(), args_copy);
+            }
+#endif
+        }
+
+        entry.level = level;
+        entry.timestamp = 0;
+        if (timestamps) {
+            entry.timestamp = t_us() - t_start;
+        }
+        entry.is_end = false;
+
+        tail = (tail + 1) % entries.size();
+        if (tail == head) {
+            // expand the buffer
+            std::vector<gpt_log_entry> new_entries(2*entries.size());
+
+            size_t new_tail = 0;
+
+            do {
+                new_entries[new_tail] = std::move(entries[head]);
+
+                head     = (head     + 1) % entries.size();
+                new_tail = (new_tail + 1);
+            } while (head != tail);
+
+            head = 0;
+            tail = new_tail;
+
+            for (size_t i = tail; i < new_entries.size(); i++) {
+                new_entries[i].msg.resize(256);
+            }
+
+            entries = std::move(new_entries);
+        }
+
+        cv.notify_one();
+    }
+
+    void resume() {
+        std::lock_guard<std::mutex> lock(mtx);
+
+        if (running) {
+            return;
+        }
+
+        running = true;
+
+        thrd = std::thread([this]() {
+            while (true) {
+                {
+                    std::unique_lock<std::mutex> lock(mtx);
+                    cv.wait(lock, [this]() { return head != tail; });
+
+                    cur = entries[head];
+
+                    head = (head + 1) % entries.size();
+                }
+
+                if (cur.is_end) {
+                    break;
+                }
+
+                cur.print(); // stdout and stderr
+
+                if (file) {
+                    cur.print(file);
+                }
+            }
+        });
+    }
+
+    void pause() {
+        {
+            std::lock_guard<std::mutex> lock(mtx);
+
+            if (!running) {
+                return;
+            }
+
+            running = false;
+
+            auto & entry = entries[tail];
+
+            entry.is_end = true;
+
+            tail = (tail + 1) % entries.size();
+
+            cv.notify_one();
+        }
+
+        thrd.join();
+    }
+
+    void set_file(const char * path) {
+        pause();
+
+        if (file) {
+            fclose(file);
+        }
+
+        if (path) {
+            file = fopen(path, "w");
+        } else {
+            file = nullptr;
+        }
+
+        resume();
+    }
+
+    void set_colors(bool colors) {
+        pause();
+
+        if (colors) {
+            g_col[GPT_LOG_COL_DEFAULT] = LOG_COL_DEFAULT;
+            g_col[GPT_LOG_COL_BOLD]    = LOG_COL_BOLD;
+            g_col[GPT_LOG_COL_RED]     = LOG_COL_RED;
+            g_col[GPT_LOG_COL_GREEN]   = LOG_COL_GREEN;
+            g_col[GPT_LOG_COL_YELLOW]  = LOG_COL_YELLOW;
+            g_col[GPT_LOG_COL_BLUE]    = LOG_COL_BLUE;
+            g_col[GPT_LOG_COL_MAGENTA] = LOG_COL_MAGENTA;
+            g_col[GPT_LOG_COL_CYAN]    = LOG_COL_CYAN;
+            g_col[GPT_LOG_COL_WHITE]   = LOG_COL_WHITE;
+        } else {
+            for (size_t i = 0; i < g_col.size(); i++) {
+                g_col[i] = "";
+            }
+        }
+
+        resume();
+    }
+
+    void set_timestamps(bool timestamps) {
+        std::lock_guard<std::mutex> lock(mtx);
+
+        this->timestamps = timestamps;
+    }
+};
+
+struct gpt_log * gpt_log_init() {
+    return new gpt_log{256};
+}
+
+struct gpt_log * gpt_log_main() {
+    static struct gpt_log log{256};
+
+    return &log;
+}
+
+void gpt_log_pause(struct gpt_log * log) {
+    log->pause();
+}
+
+void gpt_log_resume(struct gpt_log * log) {
+    log->resume();
+}
+
+void gpt_log_free(struct gpt_log * log) {
+    delete log;
+}
+
+void gpt_log_add(struct gpt_log * log, enum ggml_log_level level, const char * fmt, ...) {
+    va_list args;
+    va_start(args, fmt);
+    log->add(level, fmt, args);
+    va_end(args);
+}
+
+void gpt_log_set_file(struct gpt_log * log, const char * file) {
+    log->set_file(file);
+}
+
+void gpt_log_set_colors(struct gpt_log * log, bool colors) {
+    log->set_colors(colors);
+}
+
+void gpt_log_set_timestamps(struct gpt_log * log, bool timestamps) {
+    log->set_timestamps(timestamps);
+}

common/log.h

@@ -1,724 +1,55 @@
 #pragma once
 
-#include <chrono>
+#include "ggml.h"
-#include <cstring>
-#include <sstream>
-#include <iostream>
-#include <thread>
-#include <vector>
-#include <algorithm>
-#include <cinttypes>
 
-// --------------------------------
+#ifndef __GNUC__
-//
+#    define LOG_ATTRIBUTE_FORMAT(...)
-// Basic usage:
+#elif defined(__MINGW32__)
-//
+#    define LOG_ATTRIBUTE_FORMAT(...) __attribute__((format(gnu_printf, __VA_ARGS__)))
-// --------
-//
-//  The LOG() and LOG_TEE() macros are ready to go by default
-//   they do not require any initialization.
-//
-//  LOGLN() and LOG_TEELN() are variants which automatically
-//   include \n character at the end of the log string.
-//
-//  LOG() behaves exactly like printf, by default writing to a logfile.
-//  LOG_TEE() additionally, prints to the screen too ( mimics Unix tee command ).
-//
-//  Default logfile is named
-//   "llama.<threadID>.log"
-//  Default LOG_TEE() secondary output target is
-//   stderr
-//
-//  Logs can be dynamically disabled or enabled using functions:
-//   log_disable()
-//  and
-//   log_enable()
-//
-//  A log target can be changed with:
-//   log_set_target( string )
-//    creating and opening, or re-opening a file by string filename
-//  or
-//   log_set_target( FILE* )
-//    allowing to point at stderr, stdout, or any valid FILE* file handler.
-//
-// --------
-//
-// End of Basic usage.
-//
-// --------------------------------
-
-// Specifies a log target.
-//  default uses log_handler() with "llama.log" log file
-//  this can be changed, by defining LOG_TARGET
-//  like so:
-//
-//  #define LOG_TARGET (a valid FILE*)
-//  #include "log.h"
-//
-//  or it can be simply redirected to stdout or stderr
-//  like so:
-//
-//  #define LOG_TARGET stderr
-//  #include "log.h"
-//
-//  The log target can also be redirected to a different function
-//  like so:
-//
-//  #define LOG_TARGET log_handler_different()
-//  #include "log.h"
-//
-//  FILE* log_handler_different()
-//  {
-//      return stderr;
-//  }
-//
-//  or:
-//
-//  #define LOG_TARGET log_handler_another_one("somelog.log")
-//  #include "log.h"
-//
-//  FILE* log_handler_another_one(char*filename)
-//  {
-//      static FILE* logfile = nullptr;
-//      (...)
-//      if( !logfile )
-//      {
-//          fopen(...)
-//      }
-//      (...)
-//      return logfile
-//  }
-//
-#ifndef LOG_TARGET
-    #define LOG_TARGET log_handler()
-#endif
-
-#ifndef LOG_TEE_TARGET
-    #define LOG_TEE_TARGET stderr
-#endif
-
-// Utility for synchronizing log configuration state
-//  since std::optional was introduced only in c++17
-enum LogTriState
-{
-    LogTriStateSame,
-    LogTriStateFalse,
-    LogTriStateTrue
-};
-
-// Utility to obtain "pid" like unique process id and use it when creating log files.
-inline std::string log_get_pid()
-{
-   static std::string pid;
-   if (pid.empty())
-   {
-       // std::this_thread::get_id() is the most portable way of obtaining a "process id"
-       //  it's not the same as "pid" but is unique enough to solve multiple instances
-       //  trying to write to the same log.
-       std::stringstream ss;
-       ss << std::this_thread::get_id();
-       pid = ss.str();
-   }
-
-   return pid;
-}
-
-// Utility function for generating log file names with unique id based on thread id.
-//  invocation with log_filename_generator( "llama", "log" ) creates a string "llama.<number>.log"
-//  where the number is a runtime id of the current thread.
-
-#define log_filename_generator(log_file_basename, log_file_extension) log_filename_generator_impl(LogTriStateSame, log_file_basename, log_file_extension)
-
-// INTERNAL, DO NOT USE
-inline std::string log_filename_generator_impl(LogTriState multilog, const std::string & log_file_basename, const std::string & log_file_extension)
-{
-    static bool _multilog = false;
-
-    if (multilog != LogTriStateSame)
-    {
-        _multilog = multilog == LogTriStateTrue;
-    }
-
-    std::stringstream buf;
-
-    buf << log_file_basename;
-    if (_multilog)
-    {
-        buf << ".";
-        buf << log_get_pid();
-    }
-    buf << ".";
-    buf << log_file_extension;
-
-    return buf.str();
-}
-
-#ifndef LOG_DEFAULT_FILE_NAME
-    #define LOG_DEFAULT_FILE_NAME log_filename_generator("llama", "log")
-#endif
-
-// Utility for turning #define values into string literals
-//  so we can have a define for stderr and
-//  we can print "stderr" instead of literal stderr, etc.
-#define LOG_STRINGIZE1(s) #s
-#define LOG_STRINGIZE(s) LOG_STRINGIZE1(s)
-
-#define LOG_TEE_TARGET_STRING LOG_STRINGIZE(LOG_TEE_TARGET)
-
-// Allows disabling timestamps.
-//  in order to disable, define LOG_NO_TIMESTAMPS
-//  like so:
-//
-//  #define LOG_NO_TIMESTAMPS
-//  #include "log.h"
-//
-#ifndef LOG_NO_TIMESTAMPS
-    #ifndef _MSC_VER
-        #define LOG_TIMESTAMP_FMT "[%" PRIu64 "] "
-        #define LOG_TIMESTAMP_VAL , (std::chrono::duration_cast<std::chrono::duration<std::uint64_t>>(std::chrono::system_clock::now().time_since_epoch())).count()
-    #else
-        #define LOG_TIMESTAMP_FMT "[%" PRIu64 "] "
-        #define LOG_TIMESTAMP_VAL , (std::chrono::duration_cast<std::chrono::duration<std::uint64_t>>(std::chrono::system_clock::now().time_since_epoch())).count()
-    #endif
 #else
-    #define LOG_TIMESTAMP_FMT "%s"
+#    define LOG_ATTRIBUTE_FORMAT(...) __attribute__((format(printf, __VA_ARGS__)))
-    #define LOG_TIMESTAMP_VAL ,""
 #endif
 
-#ifdef LOG_TEE_TIMESTAMPS
+#define LOG_DEFAULT_DEBUG 10
-    #ifndef _MSC_VER
+#define LOG_DEFAULT_LLAMA 5
-        #define LOG_TEE_TIMESTAMP_FMT "[%" PRIu64 "] "
-        #define LOG_TEE_TIMESTAMP_VAL , (std::chrono::duration_cast<std::chrono::duration<std::uint64_t>>(std::chrono::system_clock::now().time_since_epoch())).count()
-    #else
-        #define LOG_TEE_TIMESTAMP_FMT "[%" PRIu64 "] "
-        #define LOG_TEE_TIMESTAMP_VAL , (std::chrono::duration_cast<std::chrono::duration<std::uint64_t>>(std::chrono::system_clock::now().time_since_epoch())).count()
-    #endif
-#else
-    #define LOG_TEE_TIMESTAMP_FMT "%s"
-    #define LOG_TEE_TIMESTAMP_VAL ,""
-#endif
 
-// Allows disabling file/line/function prefix
+// needed by the LOG_TMPL macro to avoid computing log arguments if the verbosity lower
-//  in order to disable, define LOG_NO_FILE_LINE_FUNCTION
+// set via gpt_log_set_verbosity()
-//  like so:
+extern int gpt_log_verbosity_thold;
-//
-//  #define LOG_NO_FILE_LINE_FUNCTION
-//  #include "log.h"
-//
-#ifndef LOG_NO_FILE_LINE_FUNCTION
-    #ifndef _MSC_VER
-        #define LOG_FLF_FMT "[%24s:%5d][%24s] "
-        #define LOG_FLF_VAL , __FILE__, __LINE__, __FUNCTION__
-    #else
-        #define LOG_FLF_FMT "[%24s:%5ld][%24s] "
-        #define LOG_FLF_VAL , __FILE__, (long)__LINE__, __FUNCTION__
-    #endif
-#else
-    #define LOG_FLF_FMT "%s"
-    #define LOG_FLF_VAL ,""
-#endif
 
-#ifdef LOG_TEE_FILE_LINE_FUNCTION
+void gpt_log_set_verbosity_thold(int verbosity); // not thread-safe
-    #ifndef _MSC_VER
-        #define LOG_TEE_FLF_FMT "[%24s:%5d][%24s] "
-        #define LOG_TEE_FLF_VAL , __FILE__, __LINE__, __FUNCTION__
-    #else
-        #define LOG_TEE_FLF_FMT "[%24s:%5ld][%24s] "
-        #define LOG_TEE_FLF_VAL , __FILE__, (long)__LINE__, __FUNCTION__
-    #endif
-#else
-    #define LOG_TEE_FLF_FMT "%s"
-    #define LOG_TEE_FLF_VAL ,""
-#endif
 
-// INTERNAL, DO NOT USE
+struct gpt_log;
-//  USE LOG() INSTEAD
+
-//
+struct gpt_log * gpt_log_init();
-#if !defined(_MSC_VER) || defined(__INTEL_LLVM_COMPILER) || defined(__clang__)
+struct gpt_log * gpt_log_main();
-    #define LOG_IMPL(str, ...)                                                                                      \
+void             gpt_log_pause (struct gpt_log * log);
-    do {                                                                                                            \
+void             gpt_log_resume(struct gpt_log * log);
-        if (LOG_TARGET != nullptr)                                                                                  \
+void             gpt_log_free  (struct gpt_log * log);
-        {                                                                                                           \
+
-            fprintf(LOG_TARGET, LOG_TIMESTAMP_FMT LOG_FLF_FMT str "%s" LOG_TIMESTAMP_VAL LOG_FLF_VAL, __VA_ARGS__); \
+LOG_ATTRIBUTE_FORMAT(3, 4)
-            fflush(LOG_TARGET);                                                                                     \
+void gpt_log_add(struct gpt_log * log, enum ggml_log_level level, const char * fmt, ...);
-        }                                                                                                           \
+
+void gpt_log_set_file      (struct gpt_log * log, const char * file);       // not thread-safe
+void gpt_log_set_colors    (struct gpt_log * log,       bool   colors);     // not thread-safe
+void gpt_log_set_timestamps(struct gpt_log * log,       bool   timestamps);
+
+#define LOG_TMPL(level, verbosity, ...) \
+    do { \
+        if ((verbosity) <= gpt_log_verbosity_thold) { \
+            gpt_log_add(gpt_log_main(), (level), __VA_ARGS__); \
+        } \
     } while (0)
-#else
-    #define LOG_IMPL(str, ...)                                                                                           \
-    do {                                                                                                                 \
-        if (LOG_TARGET != nullptr)                                                                                       \
-        {                                                                                                                \
-            fprintf(LOG_TARGET, LOG_TIMESTAMP_FMT LOG_FLF_FMT str "%s" LOG_TIMESTAMP_VAL LOG_FLF_VAL "", ##__VA_ARGS__); \
-            fflush(LOG_TARGET);                                                                                          \
-        }                                                                                                                \
-    } while (0)
-#endif
 
-// INTERNAL, DO NOT USE
+#define LOG(...)             LOG_TMPL(GGML_LOG_LEVEL_NONE, 0,         __VA_ARGS__)
-//  USE LOG_TEE() INSTEAD
+#define LOGV(verbosity, ...) LOG_TMPL(GGML_LOG_LEVEL_NONE, verbosity, __VA_ARGS__)
-//
-#if !defined(_MSC_VER) || defined(__INTEL_LLVM_COMPILER) || defined(__clang__)
-    #define LOG_TEE_IMPL(str, ...)                                                                                                      \
-    do {                                                                                                                                \
-        if (LOG_TARGET != nullptr)                                                                                                      \
-        {                                                                                                                               \
-            fprintf(LOG_TARGET, LOG_TIMESTAMP_FMT LOG_FLF_FMT str "%s" LOG_TIMESTAMP_VAL LOG_FLF_VAL, __VA_ARGS__);                     \
-            fflush(LOG_TARGET);                                                                                                         \
-        }                                                                                                                               \
-        if (LOG_TARGET != nullptr && LOG_TARGET != stdout && LOG_TARGET != stderr && LOG_TEE_TARGET != nullptr)                         \
-        {                                                                                                                               \
-            fprintf(LOG_TEE_TARGET, LOG_TEE_TIMESTAMP_FMT LOG_TEE_FLF_FMT str "%s" LOG_TEE_TIMESTAMP_VAL LOG_TEE_FLF_VAL, __VA_ARGS__); \
-            fflush(LOG_TEE_TARGET);                                                                                                     \
-        }                                                                                                                               \
-    } while (0)
-#else
-    #define LOG_TEE_IMPL(str, ...)                                                                                                           \
-    do {                                                                                                                                     \
-        if (LOG_TARGET != nullptr)                                                                                                           \
-        {                                                                                                                                    \
-            fprintf(LOG_TARGET, LOG_TIMESTAMP_FMT LOG_FLF_FMT str "%s" LOG_TIMESTAMP_VAL LOG_FLF_VAL "", ##__VA_ARGS__);                     \
-            fflush(LOG_TARGET);                                                                                                              \
-        }                                                                                                                                    \
-        if (LOG_TARGET != nullptr && LOG_TARGET != stdout && LOG_TARGET != stderr && LOG_TEE_TARGET != nullptr)                              \
-        {                                                                                                                                    \
-            fprintf(LOG_TEE_TARGET, LOG_TEE_TIMESTAMP_FMT LOG_TEE_FLF_FMT str "%s" LOG_TEE_TIMESTAMP_VAL LOG_TEE_FLF_VAL "", ##__VA_ARGS__); \
-            fflush(LOG_TEE_TARGET);                                                                                                          \
-        }                                                                                                                                    \
-    } while (0)
-#endif
 
-// The '\0' as a last argument, is a trick to bypass the silly
+#define LOG_INF(...) LOG_TMPL(GGML_LOG_LEVEL_INFO,  0,                 __VA_ARGS__)
-//  "warning: ISO C++11 requires at least one argument for the "..." in a variadic macro"
+#define LOG_WRN(...) LOG_TMPL(GGML_LOG_LEVEL_WARN,  0,                 __VA_ARGS__)
-//  so we can have a single macro which can be called just like printf.
+#define LOG_ERR(...) LOG_TMPL(GGML_LOG_LEVEL_ERROR, 0,                 __VA_ARGS__)
+#define LOG_DBG(...) LOG_TMPL(GGML_LOG_LEVEL_DEBUG, LOG_DEFAULT_DEBUG, __VA_ARGS__)
 
-// Main LOG macro.
+#define LOG_INFV(verbosity, ...) LOG_TMPL(GGML_LOG_LEVEL_INFO,  verbosity, __VA_ARGS__)
-//  behaves like printf, and supports arguments the exact same way.
+#define LOG_WRNV(verbosity, ...) LOG_TMPL(GGML_LOG_LEVEL_WARN,  verbosity, __VA_ARGS__)
-//
+#define LOG_ERRV(verbosity, ...) LOG_TMPL(GGML_LOG_LEVEL_ERROR, verbosity, __VA_ARGS__)
-#if !defined(_MSC_VER) || defined(__clang__)
+#define LOG_DBGV(verbosity, ...) LOG_TMPL(GGML_LOG_LEVEL_DEBUG, verbosity, __VA_ARGS__)
-    #define LOG(...) LOG_IMPL(__VA_ARGS__, "")
-#else
-    #define LOG(str, ...) LOG_IMPL("%s" str, "", ##__VA_ARGS__, "")
-#endif
-
-// Main TEE macro.
-//  does the same as LOG
-//  and
-//  simultaneously writes stderr.
-//
-// Secondary target can be changed just like LOG_TARGET
-//  by defining LOG_TEE_TARGET
-//
-#if !defined(_MSC_VER) || defined(__clang__)
-    #define LOG_TEE(...) LOG_TEE_IMPL(__VA_ARGS__, "")
-#else
-    #define LOG_TEE(str, ...) LOG_TEE_IMPL("%s" str, "", ##__VA_ARGS__, "")
-#endif
-
-// LOG macro variants with auto endline.
-#if !defined(_MSC_VER) || defined(__clang__)
-    #define LOGLN(...) LOG_IMPL(__VA_ARGS__, "\n")
-    #define LOG_TEELN(...) LOG_TEE_IMPL(__VA_ARGS__, "\n")
-#else
-    #define LOGLN(str, ...) LOG_IMPL("%s" str, "", ##__VA_ARGS__, "\n")
-    #define LOG_TEELN(str, ...) LOG_TEE_IMPL("%s" str, "", ##__VA_ARGS__, "\n")
-#endif
-
-// INTERNAL, DO NOT USE
-inline FILE *log_handler1_impl(bool change = false, LogTriState append = LogTriStateSame, LogTriState disable = LogTriStateSame, const std::string & filename = LOG_DEFAULT_FILE_NAME, FILE *target = nullptr)
-{
-    static bool _initialized = false;
-    static bool _append = false;
-    static bool _disabled = filename.empty() && target == nullptr;
-    static std::string log_current_filename{filename};
-    static FILE *log_current_target{target};
-    static FILE *logfile = nullptr;
-
-    if (change)
-    {
-        if (append != LogTriStateSame)
-        {
-            _append = append == LogTriStateTrue;
-            return logfile;
-        }
-
-        if (disable == LogTriStateTrue)
-        {
-            // Disable primary target
-            _disabled = true;
-        }
-        // If previously disabled, only enable, and keep previous target
-        else if (disable == LogTriStateFalse)
-        {
-            _disabled = false;
-        }
-        // Otherwise, process the arguments
-        else if (log_current_filename != filename || log_current_target != target)
-        {
-            _initialized = false;
-        }
-    }
-
-    if (_disabled)
-    {
-        // Log is disabled
-        return nullptr;
-    }
-
-    if (_initialized)
-    {
-        // with fallback in case something went wrong
-        return logfile ? logfile : stderr;
-    }
-
-    // do the (re)initialization
-    if (target != nullptr)
-    {
-        if (logfile != nullptr && logfile != stdout && logfile != stderr)
-        {
-            fclose(logfile);
-        }
-
-        log_current_filename = LOG_DEFAULT_FILE_NAME;
-        log_current_target = target;
-
-        logfile = target;
-    }
-    else
-    {
-        if (log_current_filename != filename)
-        {
-            if (logfile != nullptr && logfile != stdout && logfile != stderr)
-            {
-                fclose(logfile);
-            }
-        }
-
-        logfile = fopen(filename.c_str(), _append ? "a" : "w");
-    }
-
-    if (!logfile)
-    {
-        //  Verify whether the file was opened, otherwise fallback to stderr
-        logfile = stderr;
-
-        fprintf(stderr, "Failed to open logfile '%s' with error '%s'\n", filename.c_str(), std::strerror(errno));
-        fflush(stderr);
-
-        // At this point we let the init flag be to true below, and let the target fallback to stderr
-        //  otherwise we would repeatedly fopen() which was already unsuccessful
-    }
-
-    _initialized = true;
-
-    return logfile ? logfile : stderr;
-}
-
-// INTERNAL, DO NOT USE
-inline FILE *log_handler2_impl(bool change = false, LogTriState append = LogTriStateSame, LogTriState disable = LogTriStateSame, FILE *target = nullptr, const std::string & filename = LOG_DEFAULT_FILE_NAME)
-{
-    return log_handler1_impl(change, append, disable, filename, target);
-}
-
-// Disables logs entirely at runtime.
-//  Makes LOG() and LOG_TEE() produce no output,
-//  until enabled back.
-#define log_disable() log_disable_impl()
-
-// INTERNAL, DO NOT USE
-inline FILE *log_disable_impl()
-{
-    return log_handler1_impl(true, LogTriStateSame, LogTriStateTrue);
-}
-
-// Enables logs at runtime.
-#define log_enable() log_enable_impl()
-
-// INTERNAL, DO NOT USE
-inline FILE *log_enable_impl()
-{
-    return log_handler1_impl(true, LogTriStateSame, LogTriStateFalse);
-}
-
-// Sets target fir logs, either by a file name or FILE* pointer (stdout, stderr, or any valid FILE*)
-#define log_set_target(target) log_set_target_impl(target)
-
-// INTERNAL, DO NOT USE
-inline FILE *log_set_target_impl(const std::string & filename) { return log_handler1_impl(true, LogTriStateSame, LogTriStateSame, filename); }
-inline FILE *log_set_target_impl(FILE *target) { return log_handler2_impl(true, LogTriStateSame, LogTriStateSame, target); }
-
-// INTERNAL, DO NOT USE
-inline FILE *log_handler() { return log_handler1_impl(); }
-
-// Enable or disable creating separate log files for each run.
-//  can ONLY be invoked BEFORE first log use.
-#define log_multilog(enable) log_filename_generator_impl((enable) ? LogTriStateTrue : LogTriStateFalse, "", "")
-// Enable or disable append mode for log file.
-//  can ONLY be invoked BEFORE first log use.
-#define log_append(enable) log_append_impl(enable)
-// INTERNAL, DO NOT USE
-inline FILE *log_append_impl(bool enable)
-{
-    return log_handler1_impl(true, enable ? LogTriStateTrue : LogTriStateFalse, LogTriStateSame);
-}
-
-inline void log_test()
-{
-    log_disable();
-    LOG("01 Hello World to nobody, because logs are disabled!\n");
-    log_enable();
-    LOG("02 Hello World to default output, which is \"%s\" ( Yaaay, arguments! )!\n", LOG_STRINGIZE(LOG_TARGET));
-    LOG_TEE("03 Hello World to **both** default output and " LOG_TEE_TARGET_STRING "!\n");
-    log_set_target(stderr);
-    LOG("04 Hello World to stderr!\n");
-    LOG_TEE("05 Hello World TEE with double printing to stderr prevented!\n");
-    log_set_target(LOG_DEFAULT_FILE_NAME);
-    LOG("06 Hello World to default log file!\n");
-    log_set_target(stdout);
-    LOG("07 Hello World to stdout!\n");
-    log_set_target(LOG_DEFAULT_FILE_NAME);
-    LOG("08 Hello World to default log file again!\n");
-    log_disable();
-    LOG("09 Hello World _1_ into the void!\n");
-    log_enable();
-    LOG("10 Hello World back from the void ( you should not see _1_ in the log or the output )!\n");
-    log_disable();
-    log_set_target("llama.anotherlog.log");
-    LOG("11 Hello World _2_ to nobody, new target was selected but logs are still disabled!\n");
-    log_enable();
-    LOG("12 Hello World this time in a new file ( you should not see _2_ in the log or the output )?\n");
-    log_set_target("llama.yetanotherlog.log");
-    LOG("13 Hello World this time in yet new file?\n");
-    log_set_target(log_filename_generator("llama_autonamed", "log"));
-    LOG("14 Hello World in log with generated filename!\n");
-#ifdef _MSC_VER
-    LOG_TEE("15 Hello msvc TEE without arguments\n");
-    LOG_TEE("16 Hello msvc TEE with (%d)(%s) arguments\n", 1, "test");
-    LOG_TEELN("17 Hello msvc TEELN without arguments\n");
-    LOG_TEELN("18 Hello msvc TEELN with (%d)(%s) arguments\n", 1, "test");
-    LOG("19 Hello msvc LOG without arguments\n");
-    LOG("20 Hello msvc LOG with (%d)(%s) arguments\n", 1, "test");
-    LOGLN("21 Hello msvc LOGLN without arguments\n");
-    LOGLN("22 Hello msvc LOGLN with (%d)(%s) arguments\n", 1, "test");
-#endif
-}
-
-inline bool log_param_single_parse(const std::string & param)
-{
-    if ( param == "--log-test")
-    {
-        log_test();
-        return true;
-    }
-
-    if ( param == "--log-disable")
-    {
-        log_disable();
-        return true;
-    }
-
-    if ( param == "--log-enable")
-    {
-        log_enable();
-        return true;
-    }
-
-    if (param == "--log-new")
-    {
-        log_multilog(true);
-        return true;
-    }
-
-    if (param == "--log-append")
-    {
-        log_append(true);
-        return true;
-    }
-
-    return false;
-}
-
-inline bool log_param_pair_parse(bool check_but_dont_parse, const std::string & param, const std::string & next = std::string())
-{
-    if ( param == "--log-file")
-    {
-        if (!check_but_dont_parse)
-        {
-            log_set_target(log_filename_generator(next.empty() ? "unnamed" : next, "log"));
-        }
-
-        return true;
-    }
-
-    return false;
-}
-
-inline void log_print_usage()
-{
-    printf("log options:\n");
-    /* format
-    printf("  -h, --help            show this help message and exit\n");*/
-    /* spacing
-    printf("__-param----------------Description\n");*/
-    printf("  --log-test            Run simple logging test\n");
-    printf("  --log-disable         Disable trace logs\n");
-    printf("  --log-enable          Enable trace logs\n");
-    printf("  --log-file            Specify a log filename (without extension)\n");
-    printf("  --log-new             Create a separate new log file on start. "
-                                   "Each log file will have unique name: \"<name>.<ID>.log\"\n");
-    printf("  --log-append          Don't truncate the old log file.\n");
-    printf("\n");
-}
-
-#define log_dump_cmdline(argc, argv) log_dump_cmdline_impl(argc, argv)
-
-// INTERNAL, DO NOT USE
-inline void log_dump_cmdline_impl(int argc, char **argv)
-{
-    std::stringstream buf;
-    for (int i = 0; i < argc; ++i)
-    {
-        if (std::string(argv[i]).find(' ') != std::string::npos)
-        {
-            buf << " \"" << argv[i] <<"\"";
-        }
-        else
-        {
-            buf << " " << argv[i];
-        }
-    }
-    LOGLN("Cmd:%s", buf.str().c_str());
-}
-
-#define log_tostr(var) log_var_to_string_impl(var).c_str()
-
-inline std::string log_var_to_string_impl(bool var)
-{
-    return var ? "true" : "false";
-}
-
-inline std::string log_var_to_string_impl(std::string var)
-{
-    return var;
-}
-
-inline std::string log_var_to_string_impl(const std::vector<int> & var)
-{
-    std::stringstream buf;
-    buf << "[ ";
-    bool first = true;
-    for (auto e : var)
-    {
-        if (first)
-        {
-            first = false;
-        }
-        else
-        {
-            buf << ", ";
-        }
-        buf << std::to_string(e);
-    }
-    buf << " ]";
-
-    return buf.str();
-}
-
-template <typename C, typename T>
-inline std::string LOG_TOKENS_TOSTR_PRETTY(const C & ctx, const T & tokens)
-{
-    std::stringstream buf;
-    buf << "[ ";
-
-    bool first = true;
-    for (const auto & token : tokens)
-    {
-        if (!first) {
-            buf << ", ";
-        } else {
-            first = false;
-        }
-
-        auto detokenized = llama_token_to_piece(ctx, token);
-
-        detokenized.erase(
-            std::remove_if(
-                detokenized.begin(),
-                detokenized.end(),
-                [](const unsigned char c) { return !std::isprint(c); }),
-            detokenized.end());
-
-        buf
-            << "'" << detokenized << "'"
-            << ":" << std::to_string(token);
-    }
-    buf << " ]";
-
-    return buf.str();
-}
-
-template <typename C, typename B>
-inline std::string LOG_BATCH_TOSTR_PRETTY(const C & ctx, const B & batch)
-{
-    std::stringstream buf;
-    buf << "[ ";
-
-    bool first = true;
-    for (int i = 0; i < batch.n_tokens; ++i)
-    {
-        if (!first) {
-            buf << ", ";
-        } else {
-            first = false;
-        }
-
-        auto detokenized = llama_token_to_piece(ctx, batch.token[i]);
-
-        detokenized.erase(
-            std::remove_if(
-                detokenized.begin(),
-                detokenized.end(),
-                [](const unsigned char c) { return !std::isprint(c); }),
-            detokenized.end());
-
-        buf
-            << "\n" << std::to_string(i)
-            << ":token '" << detokenized << "'"
-            << ":pos " << std::to_string(batch.pos[i])
-            << ":n_seq_id  " << std::to_string(batch.n_seq_id[i])
-            << ":seq_id " << std::to_string(batch.seq_id[i][0])
-            << ":logits " << std::to_string(batch.logits[i]);
-    }
-    buf << " ]";
-
-    return buf.str();
-}
-
-#ifdef LOG_DISABLE_LOGS
-
-#undef LOG
-#define LOG(...) // dummy stub
-#undef LOGLN
-#define LOGLN(...) // dummy stub
-
-#undef LOG_TEE
-#define LOG_TEE(...) fprintf(stderr, __VA_ARGS__) // convert to normal fprintf
-
-#undef LOG_TEELN
-#define LOG_TEELN(...) fprintf(stderr, __VA_ARGS__) // convert to normal fprintf
-
-#undef LOG_DISABLE
-#define LOG_DISABLE() // dummy stub
-
-#undef LOG_ENABLE
-#define LOG_ENABLE() // dummy stub
-
-#undef LOG_ENABLE
-#define LOG_ENABLE() // dummy stub
-
-#undef LOG_SET_TARGET
-#define LOG_SET_TARGET(...) // dummy stub
-
-#undef LOG_DUMP_CMDLINE
-#define LOG_DUMP_CMDLINE(...) // dummy stub
-
-#endif // LOG_DISABLE_LOGS

common/ngram-cache.cpp

@@ -2,8 +2,11 @@
 #include "common.h"
 #include "log.h"
 
+#include <cinttypes>
 #include <cstdint>
+#include <cstdio>
 #include <fstream>
+#include <thread>
 
 void llama_ngram_cache_update(llama_ngram_cache & ngram_cache, int ngram_min, int ngram_max,
                               std::vector<llama_token> & inp, int nnew, bool print_progress) {

common/sampling.cpp

@@ -325,7 +325,7 @@ llama_token gpt_sampler_last(const struct gpt_sampler * gsmpl) {
 }
 
 std::string gpt_sampler_print(const struct gpt_sampler * gsmpl) {
-    std::string result = "\tlogits ";
+    std::string result = "logits ";
 
     for (int i = 0; i < llama_sampler_chain_n(gsmpl->chain); i++) {
         const auto * smpl = llama_sampler_chain_get(gsmpl->chain, i);

common/train.cpp

@@ -1,9 +1,11 @@
 #include "train.h"
 #include "common.h"
 
+#include <algorithm>
 #include <random>
 #include <sstream>
 #include <functional>
+#include <cstring>
 
 struct random_normal_distribution {
     std::mt19937 gen;

examples/batched-bench/batched-bench.cpp

@@ -1,5 +1,6 @@
 #include "arg.h"
 #include "common.h"
+#include "log.h"
 #include "llama.h"
 
 #include <algorithm>
@@ -8,12 +9,14 @@
 #include <vector>
 
 static void print_usage(int, char ** argv) {
-    LOG_TEE("\nexample usage:\n");
+    LOG("\nexample usage:\n");
-    LOG_TEE("\n    %s -m model.gguf -c 2048 -b 2048 -ub 512 -npp 128,256,512 -ntg 128,256 -npl 1,2,4,8,16,32 [-pps]\n", argv[0]);
+    LOG("\n    %s -m model.gguf -c 2048 -b 2048 -ub 512 -npp 128,256,512 -ntg 128,256 -npl 1,2,4,8,16,32 [-pps]\n", argv[0]);
-    LOG_TEE("\n");
+    LOG("\n");
 }
 
 int main(int argc, char ** argv) {
+    gpt_init();
+
     gpt_params params;
 
     if (!gpt_params_parse(argc, argv, params, LLAMA_EXAMPLE_BENCH, print_usage)) {
@@ -76,7 +79,7 @@ int main(int argc, char ** argv) {
 
             const int ret = llama_decode(ctx, batch_view);
             if (ret != 0) {
-                LOG_TEE("failed to decode the batch, n_batch = %d, ret = %d\n", n_batch, ret);
+                LOG_ERR("failed to decode the batch, n_batch = %d, ret = %d\n", n_batch, ret);
                 return false;
             }
 
@@ -93,17 +96,17 @@ int main(int argc, char ** argv) {
         }
 
         if (!decode_helper(ctx, batch, ctx_params.n_batch)) {
-            LOG_TEE("%s: llama_decode() failed\n", __func__);
+            LOG_ERR("%s: llama_decode() failed\n", __func__);
             return 1;
         }
     }
 
     if (!params.batched_bench_output_jsonl) {
-        LOG_TEE("\n");
+        LOG("\n");
-        LOG_TEE("%s: n_kv_max = %d, n_batch = %d, n_ubatch = %d, flash_attn = %d, is_pp_shared = %d, n_gpu_layers = %d, n_threads = %u, n_threads_batch = %u\n", __func__, n_kv_max, params.n_batch, params.n_ubatch, params.flash_attn, params.is_pp_shared, params.n_gpu_layers, ctx_params.n_threads, ctx_params.n_threads_batch);
+        LOG("%s: n_kv_max = %d, n_batch = %d, n_ubatch = %d, flash_attn = %d, is_pp_shared = %d, n_gpu_layers = %d, n_threads = %u, n_threads_batch = %u\n", __func__, n_kv_max, params.n_batch, params.n_ubatch, params.flash_attn, params.is_pp_shared, params.n_gpu_layers, ctx_params.n_threads, ctx_params.n_threads_batch);
-        LOG_TEE("\n");
+        LOG("\n");
-        LOG_TEE("|%6s | %6s | %4s | %6s | %8s | %8s | %8s | %8s | %8s | %8s |\n", "PP", "TG", "B", "N_KV", "T_PP s", "S_PP t/s", "T_TG s", "S_TG t/s", "T s", "S t/s");
+        LOG("|%6s | %6s | %4s | %6s | %8s | %8s | %8s | %8s | %8s | %8s |\n", "PP", "TG", "B", "N_KV", "T_PP s", "S_PP t/s", "T_TG s", "S_TG t/s", "T s", "S t/s");
-        LOG_TEE("|%6s-|-%6s-|-%4s-|-%6s-|-%8s-|-%8s-|-%8s-|-%8s-|-%8s-|-%8s-|\n", "------", "------", "----", "------", "--------", "--------", "--------", "--------", "--------", "--------");
+        LOG("|%6s-|-%6s-|-%4s-|-%6s-|-%8s-|-%8s-|-%8s-|-%8s-|-%8s-|-%8s-|\n", "------", "------", "----", "------", "--------", "--------", "--------", "--------", "--------", "--------");
     }
 
     for (        int i_pp = 0; i_pp < (int) n_pp.size(); ++i_pp) {
@@ -133,7 +136,7 @@ int main(int argc, char ** argv) {
                 llama_kv_cache_clear(ctx);
 
                 if (!decode_helper(ctx, batch, ctx_params.n_batch)) {
-                    LOG_TEE("%s: llama_decode() failed\n", __func__);
+                    LOG_ERR("%s: llama_decode() failed\n", __func__);
                     return 1;
                 }
 
@@ -155,7 +158,7 @@ int main(int argc, char ** argv) {
                     }
 
                     if (!decode_helper(ctx, batch, ctx_params.n_batch)) {
-                        LOG_TEE("%s: llama_decode() failed\n", __func__);
+                        LOG_ERR("%s: llama_decode() failed\n", __func__);
                         return 1;
                     }
                 }
@@ -173,20 +176,20 @@ int main(int argc, char ** argv) {
                 const float speed    = n_kv / t;
 
                 if(params.batched_bench_output_jsonl) {
-                    LOG_TEE(
+                    LOG(
                         "{\"n_kv_max\": %d, \"n_batch\": %d, \"n_ubatch\": %d, \"flash_attn\": %d, \"is_pp_shared\": %d, \"n_gpu_layers\": %d, \"n_threads\": %u, \"n_threads_batch\": %u, "
                         "\"pp\": %d, \"tg\": %d, \"pl\": %d, \"n_kv\": %d, \"t_pp\": %f, \"speed_pp\": %f, \"t_tg\": %f, \"speed_tg\": %f, \"t\": %f, \"speed\": %f}\n",
                         n_kv_max, params.n_batch, params.n_ubatch, params.flash_attn, params.is_pp_shared, params.n_gpu_layers, ctx_params.n_threads, ctx_params.n_threads_batch,
                         pp, tg, pl, n_kv, t_pp, speed_pp, t_tg, speed_tg, t, speed
                     );
                 } else {
-                    LOG_TEE("|%6d | %6d | %4d | %6d | %8.3f | %8.2f | %8.3f | %8.2f | %8.3f | %8.2f |\n", pp, tg, pl, n_kv, t_pp, speed_pp, t_tg, speed_tg, t, speed);
+                    LOG("|%6d | %6d | %4d | %6d | %8.3f | %8.2f | %8.3f | %8.2f | %8.3f | %8.2f |\n", pp, tg, pl, n_kv, t_pp, speed_pp, t_tg, speed_tg, t, speed);
                 }
             }
         }
     }
 
-    LOG_TEE("\n");
+    LOG("\n");
     llama_perf_context_print(ctx);
 
     llama_batch_free(batch);
@@ -196,7 +199,7 @@ int main(int argc, char ** argv) {
 
     llama_backend_free();
 
-    fprintf(stderr, "\n\n");
+    LOG("\n\n");
 
     return 0;
 }

examples/batched/batched.cpp

@@ -1,5 +1,6 @@
 #include "arg.h"
 #include "common.h"
+#include "log.h"
 #include "llama.h"
 
 #include <algorithm>
@@ -8,12 +9,14 @@
 #include <vector>
 
 static void print_usage(int, char ** argv) {
-    LOG_TEE("\nexample usage:\n");
+    LOG("\nexample usage:\n");
-    LOG_TEE("\n    %s -m model.gguf -p \"Hello my name is\" -n 32 -np 4\n", argv[0]);
+    LOG("\n    %s -m model.gguf -p \"Hello my name is\" -n 32 -np 4\n", argv[0]);
-    LOG_TEE("\n");
+    LOG("\n");
 }
 
 int main(int argc, char ** argv) {
+    gpt_log_init();
+
     gpt_params params;
 
     params.prompt = "Hello my name is";
@@ -42,7 +45,7 @@ int main(int argc, char ** argv) {
     llama_model * model = llama_load_model_from_file(params.model.c_str(), model_params);
 
     if (model == NULL) {
-        fprintf(stderr , "%s: error: unable to load model\n" , __func__);
+        LOG_ERR("%s: error: unable to load model\n" , __func__);
         return 1;
     }
 
@@ -72,31 +75,29 @@ int main(int argc, char ** argv) {
     llama_sampler_chain_add(smpl, llama_sampler_init_dist (params.sparams.seed));
 
     if (ctx == NULL) {
-        fprintf(stderr , "%s: error: failed to create the llama_context\n" , __func__);
+        LOG_ERR("%s: error: failed to create the llama_context\n" , __func__);
         return 1;
     }
 
     const int n_ctx = llama_n_ctx(ctx);
 
-    LOG_TEE("\n%s: n_predict = %d, n_ctx = %d, n_batch = %u, n_parallel = %d, n_kv_req = %d\n", __func__, n_predict, n_ctx, ctx_params.n_batch, n_parallel, n_kv_req);
+    LOG_INF("\n%s: n_predict = %d, n_ctx = %d, n_batch = %u, n_parallel = %d, n_kv_req = %d\n", __func__, n_predict, n_ctx, ctx_params.n_batch, n_parallel, n_kv_req);
 
     // make sure the KV cache is big enough to hold all the prompt and generated tokens
     if (n_kv_req > n_ctx) {
-        LOG_TEE("%s: error: n_kv_req (%d) > n_ctx, the required KV cache size is not big enough\n", __func__,  n_kv_req);
+        LOG_ERR("%s: error: n_kv_req (%d) > n_ctx, the required KV cache size is not big enough\n", __func__,  n_kv_req);
-        LOG_TEE("%s:        either reduce n_parallel or increase n_ctx\n", __func__);
+        LOG_ERR("%s:        either reduce n_parallel or increase n_ctx\n", __func__);
         return 1;
     }
 
     // print the prompt token-by-token
 
-    fprintf(stderr, "\n");
+    LOG("\n");
 
     for (auto id : tokens_list) {
-        fprintf(stderr, "%s", llama_token_to_piece(ctx, id).c_str());
+        LOG("%s", llama_token_to_piece(ctx, id).c_str());
     }
 
-    fflush(stderr);
-
     // create a llama_batch
     // we use this object to submit token data for decoding
     llama_batch batch = llama_batch_init(std::max(tokens_list.size(), (size_t) n_parallel), 0, n_parallel);
@@ -114,7 +115,7 @@ int main(int argc, char ** argv) {
 
     if (llama_model_has_encoder(model)) {
         if (llama_encode(ctx, batch)) {
-            LOG_TEE("%s : failed to eval\n", __func__);
+            LOG_ERR("%s : failed to eval\n", __func__);
             return 1;
         }
 
@@ -131,7 +132,7 @@ int main(int argc, char ** argv) {
     batch.logits[batch.n_tokens - 1] = true;
 
     if (llama_decode(ctx, batch) != 0) {
-        LOG_TEE("%s: llama_decode() failed\n", __func__);
+        LOG_ERR("%s: llama_decode() failed\n", __func__);
         return 1;
     }
 
@@ -142,7 +143,7 @@ int main(int argc, char ** argv) {
     //}
 
     if (n_parallel > 1) {
-        LOG_TEE("\n\n%s: generating %d sequences ...\n", __func__, n_parallel);
+        LOG("\n\n%s: generating %d sequences ...\n", __func__, n_parallel);
     }
 
     // main loop
@@ -175,9 +176,9 @@ int main(int argc, char ** argv) {
             // is it an end of generation? -> mark the stream as finished
             if (llama_token_is_eog(model, new_token_id) || n_cur == n_predict) {
                 i_batch[i] = -1;
-                LOG_TEE("\n");
+                LOG("\n");
                 if (n_parallel > 1) {
-                    LOG_TEE("%s: stream %d finished at n_cur = %d", __func__, i, n_cur);
+                    LOG_INF("%s: stream %d finished at n_cur = %d", __func__, i, n_cur);
                 }
 
                 continue;
@@ -185,8 +186,7 @@ int main(int argc, char ** argv) {
 
             // if there is only one stream, we print immediately to stdout
             if (n_parallel == 1) {
-                LOG_TEE("%s", llama_token_to_piece(ctx, new_token_id).c_str());
+                LOG("%s", llama_token_to_piece(ctx, new_token_id).c_str());
-                fflush(stdout);
             }
 
             streams[i] += llama_token_to_piece(ctx, new_token_id);
@@ -208,27 +208,25 @@ int main(int argc, char ** argv) {
 
         // evaluate the current batch with the transformer model
         if (llama_decode(ctx, batch)) {
-            fprintf(stderr, "%s : failed to eval, return code %d\n", __func__, 1);
+            LOG_ERR("%s : failed to eval, return code %d\n", __func__, 1);
             return 1;
         }
     }
 
-    LOG_TEE("\n");
-
     if (n_parallel > 1) {
-        LOG_TEE("\n");
+        LOG("\n");
 
         for (int32_t i = 0; i < n_parallel; ++i) {
-            LOG_TEE("sequence %d:\n\n%s%s\n\n", i, params.prompt.c_str(), streams[i].c_str());
+            LOG("sequence %d:\n\n%s%s\n\n", i, params.prompt.c_str(), streams[i].c_str());
         }
     }
 
     const auto t_main_end = ggml_time_us();
 
-    LOG_TEE("%s: decoded %d tokens in %.2f s, speed: %.2f t/s\n",
+    LOG_INF("%s: decoded %d tokens in %.2f s, speed: %.2f t/s\n",
             __func__, n_decode, (t_main_end - t_main_start) / 1000000.0f, n_decode / ((t_main_end - t_main_start) / 1000000.0f));
 
-    LOG_TEE("\n");
+    LOG("\n");
     llama_perf_sampler_print(smpl);
     llama_perf_context_print(ctx);
 

examples/convert-llama2c-to-ggml/convert-llama2c-to-ggml.cpp

@@ -9,6 +9,7 @@
 #include <climits>
 #include <cstring>
 #include <cstdarg>
+#include <cinttypes>
 #include <ctime>
 #include <random>
 #include <stdexcept>
@@ -105,43 +106,43 @@ static void alloc_weights(TransformerWeights * w, const Config * p, bool shared_
     const int n_multiqueries = p->n_kv_heads <= 0 || p->n_kv_heads >= p->n_heads ? 1 : p->n_heads / p->n_kv_heads;
     try {
         w->token_embedding_table.resize(p->vocab_size * p->dim);
-        LOG("%s: Allocating [%d] x [%d] = [%d] float space for w->token_embedding_table\n",__func__,p->vocab_size , p->dim, p->vocab_size * p->dim);
+        LOG_INF("%s: Allocating [%d] x [%d] = [%d] float space for w->token_embedding_table\n",__func__,p->vocab_size , p->dim, p->vocab_size * p->dim);
 
         w->rms_att_weight.resize(p->n_layers * p->dim);
-        LOG("%s: Allocating [%d] x [%d] = [%d] float space for w->rms_att_weight\n",__func__,p->n_layers, p->dim, p->n_layers * p->dim);
+        LOG_INF("%s: Allocating [%d] x [%d] = [%d] float space for w->rms_att_weight\n",__func__,p->n_layers, p->dim, p->n_layers * p->dim);
 
         w->rms_ffn_weight.resize(p->n_layers * p->dim);
-        LOG("%s: Allocating [%d] x [%d] = [%d] float space for w->rms_ffn_weight\n",__func__,p->n_layers , p->dim, p->n_layers * p->dim);
+        LOG_INF("%s: Allocating [%d] x [%d] = [%d] float space for w->rms_ffn_weight\n",__func__,p->n_layers , p->dim, p->n_layers * p->dim);
 
         w->wq.resize(p->n_layers * p->dim * p->dim);
-        LOG("%s: Allocating [%d] x [%d] x [%d] = [%d] float space for w->wq\n",__func__,p->n_layers, p->dim, p->dim, p->n_layers * p->dim * p->dim);
+        LOG_INF("%s: Allocating [%d] x [%d] x [%d] = [%d] float space for w->wq\n",__func__,p->n_layers, p->dim, p->dim, p->n_layers * p->dim * p->dim);
 
         w->wk.resize(p->n_layers * p->dim * p->dim / n_multiqueries);
-        LOG("%s: Allocating [%d] x [%d] x [%d] = [%d] float space for w->wk\n",__func__,p->n_layers, p->dim, p->dim / n_multiqueries, p->n_layers * p->dim * p->dim / n_multiqueries);
+        LOG_INF("%s: Allocating [%d] x [%d] x [%d] = [%d] float space for w->wk\n",__func__,p->n_layers, p->dim, p->dim / n_multiqueries, p->n_layers * p->dim * p->dim / n_multiqueries);
 
         w->wv.resize(p->n_layers * p->dim * p->dim / n_multiqueries);
-        LOG("%s: Allocating [%d] x [%d] x [%d] = [%d] float space for w->wv\n",__func__, p->n_layers, p->dim, p->dim / n_multiqueries, p->n_layers * p->dim * p->dim / n_multiqueries);
+        LOG_INF("%s: Allocating [%d] x [%d] x [%d] = [%d] float space for w->wv\n",__func__, p->n_layers, p->dim, p->dim / n_multiqueries, p->n_layers * p->dim * p->dim / n_multiqueries);
 
         w->wo.resize(p->n_layers * p->dim * p->dim);
-        LOG("%s: Allocating [%d] x [%d] x [%d] = [%d] float space for w->wo\n",__func__,p->n_layers, p->dim, p->dim, p->n_layers * p->dim * p->dim);
+        LOG_INF("%s: Allocating [%d] x [%d] x [%d] = [%d] float space for w->wo\n",__func__,p->n_layers, p->dim, p->dim, p->n_layers * p->dim * p->dim);
 
         w->w1.resize(p->n_layers * p->hidden_dim * p->dim);
-        LOG("%s: Allocating [%d] x [%d] x [%d] = [%d] float space for w->w1\n",__func__,p->n_layers, p->hidden_dim, p->dim, p->n_layers * p->hidden_dim * p->dim);
+        LOG_INF("%s: Allocating [%d] x [%d] x [%d] = [%d] float space for w->w1\n",__func__,p->n_layers, p->hidden_dim, p->dim, p->n_layers * p->hidden_dim * p->dim);
 
         w->w2.resize(p->n_layers * p->hidden_dim * p->dim);
-        LOG("%s: Allocating [%d] x [%d] x [%d] = [%d] float space for w->w2\n",__func__,p->n_layers, p->dim, p->hidden_dim, p->n_layers * p->hidden_dim * p->dim);
+        LOG_INF("%s: Allocating [%d] x [%d] x [%d] = [%d] float space for w->w2\n",__func__,p->n_layers, p->dim, p->hidden_dim, p->n_layers * p->hidden_dim * p->dim);
 
         w->w3.resize(p->n_layers * p->hidden_dim * p->dim);
-        LOG("%s: Allocating [%d] x [%d] x [%d] = [%d] float space for w->w3\n",__func__,p->n_layers, p->hidden_dim, p->dim, p->n_layers * p->hidden_dim * p->dim);
+        LOG_INF("%s: Allocating [%d] x [%d] x [%d] = [%d] float space for w->w3\n",__func__,p->n_layers, p->hidden_dim, p->dim, p->n_layers * p->hidden_dim * p->dim);
 
         w->rms_final_weight.resize(p->dim);
-        LOG("%s: Allocating [%d] float space for w->rms_final_weight\n",__func__,p->dim);
+        LOG_INF("%s: Allocating [%d] float space for w->rms_final_weight\n",__func__,p->dim);
 
         if (shared_weights) {
             w->wcls = {};
         } else {
             w->wcls.resize(p->vocab_size * p->dim);
-            LOG("%s: Allocating [%d] x [%d] = [%d] float space for w->wcls\n",__func__,p->vocab_size , p->dim, p->vocab_size * p->dim);
+            LOG_INF("%s: Allocating [%d] x [%d] = [%d] float space for w->wcls\n",__func__,p->vocab_size , p->dim, p->vocab_size * p->dim);
         }
     }
     catch (std::length_error &) {
@@ -173,7 +174,7 @@ static int checkpoint_init_weights(TransformerWeights * w, const Config * p, FIL
     fseek(f, 0, SEEK_END);
     auto end = ftell(f);
     if (curr != end) {
-        LOG("%s: Error: failed to read the checkpoint file to the end (curr = %ld, end =  %ld)\n", __func__, curr, end);
+        LOG_ERR("%s: Error: failed to read the checkpoint file to the end (curr = %ld, end =  %ld)\n", __func__, curr, end);
         return 1;
     }
 
@@ -181,20 +182,20 @@ static int checkpoint_init_weights(TransformerWeights * w, const Config * p, FIL
 }
 
 static void print_sample_weights(TransformerWeights *w){
-    LOG("----- Quick print of first of the weight vales of all the variables\n");
+    LOG_INF("----- Quick print of first of the weight vales of all the variables\n");
-    LOG("%f\n", w->token_embedding_table[0]);
+    LOG_INF("%f\n", w->token_embedding_table[0]);
-    LOG("%f\n", w->rms_att_weight[0]);
+    LOG_INF("%f\n", w->rms_att_weight[0]);
-    LOG("%f\n", w->rms_ffn_weight[0]);
+    LOG_INF("%f\n", w->rms_ffn_weight[0]);
 
-    LOG("%f\n", w->wq[0]);
+    LOG_INF("%f\n", w->wq[0]);
-    LOG("%f\n", w->wk[0]);
+    LOG_INF("%f\n", w->wk[0]);
-    LOG("%f\n", w->wv[0]);
+    LOG_INF("%f\n", w->wv[0]);
-    LOG("%f\n", w->wo[0]);
+    LOG_INF("%f\n", w->wo[0]);
-    LOG("%f\n", w->w1[0]);
+    LOG_INF("%f\n", w->w1[0]);
-    LOG("%f\n", w->w2[0]);
+    LOG_INF("%f\n", w->w2[0]);
-    LOG("%f\n", w->w3[0]);
+    LOG_INF("%f\n", w->w3[0]);
-    LOG("%f\n", w->rms_att_weight[0]);
+    LOG_INF("%f\n", w->rms_att_weight[0]);
-    if (!w->wcls.empty()) LOG("%f\n", w->wcls[0]);
+    if (!w->wcls.empty()) LOG_INF("%f\n", w->wcls[0]);
 }
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
@@ -318,20 +319,20 @@ struct train_params {
 };
 
 static void print_params(struct my_llama_hparams * params) {
-    LOG("%s: n_vocab:   %u\n", __func__, params->n_vocab);
+    LOG_INF("%s: n_vocab:   %u\n", __func__, params->n_vocab);
-    LOG("%s: n_ctx:     %u\n", __func__, params->n_ctx);
+    LOG_INF("%s: n_ctx:     %u\n", __func__, params->n_ctx);
-    LOG("%s: n_embd:    %u\n", __func__, params->n_embd);
+    LOG_INF("%s: n_embd:    %u\n", __func__, params->n_embd);
-    LOG("%s: n_mult:    %u\n", __func__, params->n_mult);
+    LOG_INF("%s: n_mult:    %u\n", __func__, params->n_mult);
-    LOG("%s: n_head:    %u\n", __func__, params->n_head);
+    LOG_INF("%s: n_head:    %u\n", __func__, params->n_head);
-    LOG("%s: n_head_kv: %u\n", __func__, params->n_head_kv);
+    LOG_INF("%s: n_head_kv: %u\n", __func__, params->n_head_kv);
-    LOG("%s: n_ff:      %u\n", __func__, params->n_ff);
+    LOG_INF("%s: n_ff:      %u\n", __func__, params->n_ff);
-    LOG("%s: n_layer:   %u\n", __func__, params->n_layer);
+    LOG_INF("%s: n_layer:   %u\n", __func__, params->n_layer);
-    LOG("%s: n_rot:     %u\n", __func__, params->n_rot);
+    LOG_INF("%s: n_rot:     %u\n", __func__, params->n_rot);
 }
 
 static void print_tensor_info(const struct ggml_context * ctx) {
     for (auto t = ggml_get_first_tensor(ctx); t != NULL; t = ggml_get_next_tensor(ctx, t)) {
-        LOG("%s: Allocating ", __func__);
+        LOG_INF("%s: Allocating ", __func__);
         int64_t total = 1;
         int i = 0;
         for (; i < ggml_n_dims(t); ++i) {
@@ -526,7 +527,7 @@ static std::string llama_escape_whitespaces(const std::string & text) {
 
 static void load_vocab(const char * filename, const Config * config, struct llama_vocab * vocab) {
     if (is_ggml_file(filename)) {
-        LOG("%s: Loading vocabulary from gguf file %s\n", __func__, filename);
+        LOG_INF("%s: Loading vocabulary from gguf file %s\n", __func__, filename);
         struct ggml_context * ctx_data = NULL;
 
         struct gguf_init_params params = {
@@ -574,7 +575,7 @@ static void load_vocab(const char * filename, const Config * config, struct llam
         gguf_free(ctx);
     } else {
         // assume llama2.c vocabulary
-        LOG("%s: Assuming llama2.c vocabulary since %s is not a gguf file\n", __func__, filename);
+        LOG_INF("%s: Assuming llama2.c vocabulary since %s is not a gguf file\n", __func__, filename);
         llama_file file(filename, "rb");
         if (!file.fp) {
             die_fmt("%s: %s", strerror(errno), filename);
@@ -871,23 +872,25 @@ static std::string basename(const std::string &path) {
 }
 
 int main(int argc, char ** argv) {
+    gpt_init();
+
     struct train_params params = get_default_train_params();
     if (!params_parse(argc, argv, &params)) {
         return 1;
     }
-    log_set_target(stdout);
+
     Config config;
     TransformerWeights weights = {};
     {
-        LOG("%s: Loading llama2c model from %s\n", __func__, params.fn_llama2c_model);
+        LOG_INF("%s: Loading llama2c model from %s\n", __func__, params.fn_llama2c_model);
         FILE * file = fopen(params.fn_llama2c_model, "rb");
         if (!file) {
-            LOG("%s: Unable to open the checkpoint file %s!\n", __func__, params.fn_llama2c_model);
+            LOG_ERR("%s: Unable to open the checkpoint file %s!\n", __func__, params.fn_llama2c_model);
             return 1;
         }
         // read in the config header
         if (fread(&config, sizeof(Config), 1, file) != 1) {
-            LOG("%s: Unable to read llama2c config from %s!\n",__func__,params.fn_llama2c_model);
+            LOG_ERR("%s: Unable to read llama2c config from %s!\n",__func__,params.fn_llama2c_model);
             return 1;
         }
         auto shared_weights = config.vocab_size > 0;
@@ -896,7 +899,7 @@ int main(int argc, char ** argv) {
         // read in the Transformer weights
         alloc_weights(&weights, &config, shared_weights);
         if (checkpoint_init_weights(&weights, &config, file, shared_weights)) {
-            LOG("%s: Unable to initialize transformer weights from %s!",__func__,params.fn_llama2c_model);
+            LOG_ERR("%s: Unable to initialize transformer weights from %s!",__func__,params.fn_llama2c_model);
             return 1;
         }
         fclose(file);
@@ -929,7 +932,7 @@ int main(int argc, char ** argv) {
     model.name = basename(params.fn_llama2c_model);
     save_as_llama_model(&vocab, &model, &weights, params.fn_llama2c_output_model);
 
-    LOG("%s: Saving llama.c model file %s in ggml format at %s\n", __func__, params.fn_llama2c_model, params.fn_llama2c_output_model);
+    LOG_INF("%s: Saving llama.c model file %s in ggml format at %s\n", __func__, params.fn_llama2c_model, params.fn_llama2c_output_model);
 
     ggml_free(model.ctx);
     return 0;

examples/cvector-generator/cvector-generator.cpp

@@ -13,14 +13,15 @@
 #include "ggml-metal.h"
 #endif
 
+#include <algorithm>
+#include <climits>
 #include <cstdio>
+#include <cstring>
+#include <fstream>
+#include <iostream>
 #include <string>
 #include <tuple>
 #include <vector>
-#include <algorithm>
-#include <iostream>
-#include <fstream>
-#include <climits>
 
 
 //////////////////////////////////////////////////

examples/embedding/embedding.cpp

@@ -1,5 +1,6 @@
 #include "arg.h"
 #include "common.h"
+#include "log.h"
 #include "llama.h"
 
 #include <ctime>
@@ -39,16 +40,16 @@ static void batch_decode(llama_context * ctx, llama_batch & batch, float * outpu
     llama_kv_cache_clear(ctx);
 
     // run model
-    fprintf(stderr, "%s: n_tokens = %d, n_seq = %d\n", __func__, batch.n_tokens, n_seq);
+    LOG_INF("%s: n_tokens = %d, n_seq = %d\n", __func__, batch.n_tokens, n_seq);
     if (llama_model_has_encoder(model) && !llama_model_has_decoder(model)) {
         // encoder-only model
         if (llama_encode(ctx, batch) < 0) {
-            fprintf(stderr, "%s : failed to encode\n", __func__);
+            LOG_ERR("%s : failed to encode\n", __func__);
         }
     } else if (!llama_model_has_encoder(model) && llama_model_has_decoder(model)) {
         // decoder-only model
         if (llama_decode(ctx, batch) < 0) {
-            fprintf(stderr, "%s : failed to decode\n", __func__);
+            LOG_ERR("%s : failed to decode\n", __func__);
         }
     }
 
@@ -78,6 +79,8 @@ static void batch_decode(llama_context * ctx, llama_batch & batch, float * outpu
 }
 
 int main(int argc, char ** argv) {
+    gpt_log_init();
+
     gpt_params params;
 
     if (!gpt_params_parse(argc, argv, params, LLAMA_EXAMPLE_EMBEDDING)) {
@@ -88,8 +91,6 @@ int main(int argc, char ** argv) {
     // For non-causal models, batch size must be equal to ubatch size
     params.n_ubatch = params.n_batch;
 
-    print_build_info();
-
     llama_backend_init();
     llama_numa_init(params.numa);
 
@@ -99,7 +100,7 @@ int main(int argc, char ** argv) {
     llama_model * model = llama_init.model;
     llama_context * ctx = llama_init.context;
     if (model == NULL) {
-        fprintf(stderr, "%s: error: unable to load model\n", __func__);
+        LOG_ERR("%s: unable to load model\n", __func__);
         return 1;
     }
 
@@ -109,19 +110,19 @@ int main(int argc, char ** argv) {
     const enum llama_pooling_type pooling_type = llama_pooling_type(ctx);
 
     if (llama_model_has_encoder(model) && llama_model_has_decoder(model)) {
-        fprintf(stderr, "%s: error: computing embeddings in encoder-decoder models is not supported\n", __func__);
+        LOG_ERR("%s: computing embeddings in encoder-decoder models is not supported\n", __func__);
         return 1;
     }
 
     if (n_ctx > n_ctx_train) {
-        fprintf(stderr, "%s: warning: model was trained on only %d context tokens (%d specified)\n",
+        LOG_WRN("%s: warning: model was trained on only %d context tokens (%d specified)\n",
                 __func__, n_ctx_train, n_ctx);
     }
 
     // print system information
     {
-        fprintf(stderr, "\n");
+        LOG_INF("\n");
-        fprintf(stderr, "%s\n", gpt_params_get_system_info(params).c_str());
+        LOG_INF("%s\n", gpt_params_get_system_info(params).c_str());
     }
 
     // split the prompt into lines
@@ -136,7 +137,7 @@ int main(int argc, char ** argv) {
     for (const auto & prompt : prompts) {
         auto inp = ::llama_tokenize(ctx, prompt, true, false);
         if (inp.size() > n_batch) {
-            fprintf(stderr, "%s: error: number of tokens in input line (%lld) exceeds batch size (%lld), increase batch size and re-run\n",
+            LOG_ERR("%s: number of tokens in input line (%lld) exceeds batch size (%lld), increase batch size and re-run\n",
                     __func__, (long long int) inp.size(), (long long int) n_batch);
             return 1;
         }
@@ -147,20 +148,20 @@ int main(int argc, char ** argv) {
     // it should be automatically added by the tokenizer when 'tokenizer.ggml.add_eos_token' is set to 'true'
     for (auto & inp : inputs) {
         if (inp.empty() || inp.back() != llama_token_sep(model)) {
-            fprintf(stderr, "%s: warning: last token in the prompt is not SEP\n", __func__);
+            LOG_WRN("%s: last token in the prompt is not SEP\n", __func__);
-            fprintf(stderr, "%s:          'tokenizer.ggml.add_eos_token' should be set to 'true' in the GGUF header\n", __func__);
+            LOG_WRN("%s: 'tokenizer.ggml.add_eos_token' should be set to 'true' in the GGUF header\n", __func__);
         }
     }
 
     // tokenization stats
     if (params.verbose_prompt) {
         for (int i = 0; i < (int) inputs.size(); i++) {
-            fprintf(stderr, "%s: prompt %d: '%s'\n", __func__, i, prompts[i].c_str());
+            LOG_INF("%s: prompt %d: '%s'\n", __func__, i, prompts[i].c_str());
-            fprintf(stderr, "%s: number of tokens in prompt = %zu\n", __func__, inputs[i].size());
+            LOG_INF("%s: number of tokens in prompt = %zu\n", __func__, inputs[i].size());
             for (int j = 0; j < (int) inputs[i].size(); j++) {
-                fprintf(stderr, "%6d -> '%s'\n", inputs[i][j], llama_token_to_piece(ctx, inputs[i][j]).c_str());
+                LOG("%6d -> '%s'\n", inputs[i][j], llama_token_to_piece(ctx, inputs[i][j]).c_str());
             }
-            fprintf(stderr, "\n\n");
+            LOG("\n\n");
         }
     }
 
@@ -211,57 +212,57 @@ int main(int argc, char ** argv) {
     batch_decode(ctx, batch, out, s, n_embd, params.embd_normalize);
 
     if (params.embd_out.empty()) {
-        fprintf(stdout, "\n");
+        LOG("\n");
 
         if (pooling_type == LLAMA_POOLING_TYPE_NONE) {
             for (int j = 0; j < n_embd_count; j++) {
-                fprintf(stdout, "embedding %d: ", j);
+                LOG("embedding %d: ", j);
                 for (int i = 0; i < std::min(3, n_embd); i++) {
                     if (params.embd_normalize == 0) {
-                        fprintf(stdout, "%6.0f ", emb[j * n_embd + i]);
+                        LOG("%6.0f ", emb[j * n_embd + i]);
                     } else {
-                        fprintf(stdout, "%9.6f ", emb[j * n_embd + i]);
+                        LOG("%9.6f ", emb[j * n_embd + i]);
                     }
                 }
-                fprintf(stdout, " ... ");
+                LOG(" ... ");
                 for (int i = n_embd - 3; i < n_embd; i++) {
                     if (params.embd_normalize == 0) {
-                        fprintf(stdout, "%6.0f ", emb[j * n_embd + i]);
+                        LOG("%6.0f ", emb[j * n_embd + i]);
                     } else {
-                        fprintf(stdout, "%9.6f ", emb[j * n_embd + i]);
+                        LOG("%9.6f ", emb[j * n_embd + i]);
                     }
                 }
-                fprintf(stdout, "\n");
+                LOG("\n");
             }
         } else {
             // print the first part of the embeddings or for a single prompt, the full embedding
             for (int j = 0; j < n_prompts; j++) {
-                fprintf(stdout, "embedding %d: ", j);
+                LOG("embedding %d: ", j);
                 for (int i = 0; i < (n_prompts > 1 ? std::min(16, n_embd) : n_embd); i++) {
                     if (params.embd_normalize == 0) {
-                        fprintf(stdout, "%6.0f ", emb[j * n_embd + i]);
+                        LOG("%6.0f ", emb[j * n_embd + i]);
                     } else {
-                        fprintf(stdout, "%9.6f ", emb[j * n_embd + i]);
+                        LOG("%9.6f ", emb[j * n_embd + i]);
                     }
                 }
-                fprintf(stdout, "\n");
+                LOG("\n");
             }
 
             // print cosine similarity matrix
             if (n_prompts > 1) {
-                fprintf(stdout, "\n");
+                LOG("\n");
-                printf("cosine similarity matrix:\n\n");
+                LOG("cosine similarity matrix:\n\n");
                 for (int i = 0; i < n_prompts; i++) {
-                    fprintf(stdout, "%6.6s ", prompts[i].c_str());
+                    LOG("%6.6s ", prompts[i].c_str());
                 }
-                fprintf(stdout, "\n");
+                LOG("\n");
                 for (int i = 0; i < n_prompts; i++) {
                     for (int j = 0; j < n_prompts; j++) {
                         float sim = llama_embd_similarity_cos(emb + i * n_embd, emb + j * n_embd, n_embd);
-                        fprintf(stdout, "%6.2f ", sim);
+                        LOG("%6.2f ", sim);
                     }
-                    fprintf(stdout, "%1.10s", prompts[i].c_str());
+                    LOG("%1.10s", prompts[i].c_str());
-                    fprintf(stdout, "\n");
+                    LOG("\n");
                 }
             }
         }
@@ -270,42 +271,42 @@ int main(int argc, char ** argv) {
     if (params.embd_out == "json" || params.embd_out == "json+" || params.embd_out == "array") {
         const bool notArray = params.embd_out != "array";
 
-        fprintf(stdout, notArray ? "{\n  \"object\": \"list\",\n  \"data\": [\n" : "[");
+        LOG(notArray ? "{\n  \"object\": \"list\",\n  \"data\": [\n" : "[");
         for (int j = 0;;) { // at least one iteration (one prompt)
-            if (notArray) fprintf(stdout, "    {\n      \"object\": \"embedding\",\n      \"index\": %d,\n      \"embedding\": ",j);
+            if (notArray) LOG("    {\n      \"object\": \"embedding\",\n      \"index\": %d,\n      \"embedding\": ",j);
-            fprintf(stdout, "[");
+            LOG("[");
             for (int i = 0;;) { // at least one iteration (n_embd > 0)
-                fprintf(stdout, params.embd_normalize == 0 ? "%1.0f" : "%1.7f", emb[j * n_embd + i]);
+                LOG(params.embd_normalize == 0 ? "%1.0f" : "%1.7f", emb[j * n_embd + i]);
                 i++;
-                if (i < n_embd) fprintf(stdout, ","); else break;
+                if (i < n_embd) LOG(","); else break;
             }
-            fprintf(stdout, notArray ? "]\n    }" : "]");
+            LOG(notArray ? "]\n    }" : "]");
             j++;
-            if (j < n_embd_count) fprintf(stdout, notArray ? ",\n" : ","); else break;
+            if (j < n_embd_count) LOG(notArray ? ",\n" : ","); else break;
         }
-        fprintf(stdout, notArray ? "\n  ]" : "]\n");
+        LOG(notArray ? "\n  ]" : "]\n");
 
         if (params.embd_out == "json+" && n_prompts > 1) {
-            fprintf(stdout, ",\n  \"cosineSimilarity\": [\n");
+            LOG(",\n  \"cosineSimilarity\": [\n");
             for (int i = 0;;) { // at least two iteration (n_embd_count > 1)
-                fprintf(stdout, "    [");
+                LOG("    [");
                 for (int j = 0;;) { // at least two iteration (n_embd_count > 1)
                     float sim = llama_embd_similarity_cos(emb + i * n_embd, emb + j * n_embd, n_embd);
-                    fprintf(stdout, "%6.2f", sim);
+                    LOG("%6.2f", sim);
                     j++;
-                    if (j < n_embd_count) fprintf(stdout, ", "); else break;
+                    if (j < n_embd_count) LOG(", "); else break;
                 }
-                fprintf(stdout, " ]");
+                LOG(" ]");
                 i++;
-                if (i < n_embd_count) fprintf(stdout, ",\n"); else break;
+                if (i < n_embd_count) LOG(",\n"); else break;
             }
-            fprintf(stdout, "\n  ]");
+            LOG("\n  ]");
         }
 
-        if (notArray) fprintf(stdout, "\n}\n");
+        if (notArray) LOG("\n}\n");
     }
 
-    LOG_TEE("\n");
+    LOG("\n");
     llama_perf_context_print(ctx);
 
     // clean up

examples/eval-callback/eval-callback.cpp

@@ -1,12 +1,11 @@
 #include "arg.h"
 #include "common.h"
+#include "log.h"
 #include "llama.h"
 #include "ggml.h"
 
 #include <cstdio>
-#include <random>
 #include <string>
-#include <tuple>
 #include <vector>
 
 /**
@@ -32,22 +31,22 @@ static void ggml_print_tensor(uint8_t * data, ggml_type type, const int64_t * ne
     GGML_ASSERT(n > 0);
     float sum = 0;
     for (int64_t i3 = 0; i3 < ne[3]; i3++) {
-        printf("                                     [\n");
+        LOG("                                     [\n");
         for (int64_t i2 = 0; i2 < ne[2]; i2++) {
             if (i2 == n && ne[2] > 2*n) {
-                printf("                                      ..., \n");
+                LOG("                                      ..., \n");
                 i2 = ne[2] - n;
             }
-            printf("                                      [\n");
+            LOG("                                      [\n");
             for (int64_t i1 = 0; i1 < ne[1]; i1++) {
                 if (i1 == n && ne[1] > 2*n) {
-                    printf("                                       ..., \n");
+                    LOG("                                       ..., \n");
                     i1 = ne[1] - n;
                 }
-                printf("                                       [");
+                LOG("                                       [");
                 for (int64_t i0 = 0; i0 < ne[0]; i0++) {
                     if (i0 == n && ne[0] > 2*n) {
-                        printf("..., ");
+                        LOG("..., ");
                         i0 = ne[0] - n;
                     }
                     size_t i = i3 * nb[3] + i2 * nb[2] + i1 * nb[1] + i0 * nb[0];
@@ -65,16 +64,16 @@ static void ggml_print_tensor(uint8_t * data, ggml_type type, const int64_t * ne
                     } else {
                         GGML_ABORT("fatal error");
                     }
-                    printf("%12.4f", v);
+                    LOG("%12.4f", v);
                     sum += v;
-                    if (i0 < ne[0] - 1) printf(", ");
+                    if (i0 < ne[0] - 1) LOG(", ");
                 }
-                printf("],\n");
+                LOG("],\n");
             }
-            printf("                                      ],\n");
+            LOG("                                      ],\n");
         }
-        printf("                                     ]\n");
+        LOG("                                     ]\n");
-        printf("                                     sum = %f\n", sum);
+        LOG("                                     sum = %f\n", sum);
     }
 }
 
@@ -103,11 +102,11 @@ static bool ggml_debug(struct ggml_tensor * t, bool ask, void * user_data) {
         snprintf(src1_str, sizeof(src1_str), "%s{%s}", src1->name, ggml_ne_string(src1).c_str());
     }
 
-    printf("%s: %24s = (%s) %10s(%s{%s}, %s}) = {%s}\n", __func__,
+    LOG("%s: %24s = (%s) %10s(%s{%s}, %s}) = {%s}\n", __func__,
-           t->name, ggml_type_name(t->type), ggml_op_desc(t),
+         t->name, ggml_type_name(t->type), ggml_op_desc(t),
-           src0->name, ggml_ne_string(src0).c_str(),
+         src0->name, ggml_ne_string(src0).c_str(),
-           src1 ? src1_str : "",
+         src1 ? src1_str : "",
-           ggml_ne_string(t).c_str());
+         ggml_ne_string(t).c_str());
 
 
     // copy the data from the GPU memory if needed
@@ -133,7 +132,7 @@ static bool run(llama_context * ctx, const gpt_params & params) {
     std::vector<llama_token> tokens = ::llama_tokenize(ctx, params.prompt, add_bos);
 
     if (llama_decode(ctx, llama_batch_get_one(tokens.data(), tokens.size(), 0, 0))) {
-        fprintf(stderr, "%s : failed to eval\n", __func__);
+        LOG_ERR("%s : failed to eval\n", __func__);
         return false;
     }
 
@@ -141,6 +140,8 @@ static bool run(llama_context * ctx, const gpt_params & params) {
 }
 
 int main(int argc, char ** argv) {
+    gpt_init();
+
     callback_data cb_data;
 
     gpt_params params;
@@ -149,8 +150,6 @@ int main(int argc, char ** argv) {
         return 1;
     }
 
-    print_build_info();
-
     llama_backend_init();
     llama_numa_init(params.numa);
 
@@ -166,14 +165,15 @@ int main(int argc, char ** argv) {
     llama_model * model = llama_init.model;
     llama_context * ctx = llama_init.context;
     if (model == nullptr || ctx == nullptr) {
-        fprintf(stderr, "%s : failed to init\n", __func__);
+        LOG_ERR("%s : failed to init\n", __func__);
         return 1;
     }
 
     // print system information
     {
-        fprintf(stderr, "\n");
+        LOG_INF("\n");
-        fprintf(stderr, "%s\n", gpt_params_get_system_info(params).c_str());
+        LOG_INF("%s\n", gpt_params_get_system_info(params).c_str());
+        LOG_INF("\n");
     }
 
     bool OK = run(ctx, params);
@@ -181,7 +181,7 @@ int main(int argc, char ** argv) {
         return 1;
     }
 
-    LOG_TEE("\n");
+    LOG("\n");
     llama_perf_context_print(ctx);
 
     llama_free(ctx);

examples/imatrix/imatrix.cpp

@@ -1,5 +1,6 @@
 #include "arg.h"
 #include "common.h"
+#include "log.h"
 #include "llama.h"
 
 #include <cmath>
@@ -19,12 +20,12 @@
 #endif
 
 static void print_usage(int, char ** argv) {
-    LOG_TEE("\nexample usage:\n");
+    LOG("\nexample usage:\n");
-    LOG_TEE("\n    %s \\\n"
+    LOG("\n    %s \\\n"
             "       -m model.gguf -f some-text.txt [-o imatrix.dat] [--process-output] [--verbosity 1] \\\n"
             "       [--no-ppl] [--chunk 123] [--output-frequency 10] [--save-frequency 0] \\\n"
             "       [--in-file imatrix-prev-0.dat --in-file imatrix-prev-1.dat ...]\n" , argv[0]);
-    LOG_TEE("\n");
+    LOG("\n");
 }
 
 struct Stats {
@@ -125,7 +126,7 @@ bool IMatrixCollector::collect_imatrix(struct ggml_tensor * t, bool ask, void *
             e.counts.resize(src1->ne[0]*n_as, 0);
         }
         else if (e.values.size() != (size_t)src1->ne[0]*n_as) {
-            fprintf(stderr, "Oops: inconsistent size for %s (%d vs %d)\n", wname.c_str(), (int)e.values.size(), (int)src1->ne[0]*n_as);
+            LOG_ERR("%s: inconsistent size for %s (%d vs %d)\n", __func__, wname.c_str(), (int)e.values.size(), (int)src1->ne[0]*n_as);
             exit(1); //GGML_ABORT("fatal error");
         }
         if (m_params.verbosity > 1) {
@@ -151,7 +152,8 @@ bool IMatrixCollector::collect_imatrix(struct ggml_tensor * t, bool ask, void *
                         e.values[e_start + j] += x[j]*x[j];
                         e.counts[e_start + j]++;
                         if (!std::isfinite(e.values[e_start + j])) {
-                            fprintf(stderr, "%f detected in %s\n", e.values[e_start + j], wname.c_str());
+                            LOG("\n");
+                            LOG_ERR("%f detected in %s\n", e.values[e_start + j], wname.c_str());
                             exit(1);
                         }
                     }
@@ -174,12 +176,12 @@ bool IMatrixCollector::collect_imatrix(struct ggml_tensor * t, bool ask, void *
             e.counts.resize(src1->ne[0], 0);
         }
         else if (e.values.size() != (size_t)src1->ne[0]) {
-            fprintf(stderr, "Oops: inconsistent size for %s (%d vs %d)\n", wname.c_str(), (int)e.values.size(), (int)src1->ne[0]);
+            LOG_ERR("%s: inconsistent size for %s (%d vs %d)\n", __func__, wname.c_str(), (int)e.values.size(), (int)src1->ne[0]);
             exit(1); //GGML_ABORT("fatal error");
         }
         ++e.ncall;
         if (m_params.verbosity > 1) {
-            printf("%s[%d]: %32s, %s, %5d x %5d, %d\n", __func__, m_last_call, wname.c_str(), ggml_op_name(t->op), (int)src1->ne[0], (int)src1->ne[1], (int)src1->type);
+            LOG("%s[%d]: %32s, %s, %5d x %5d, %d\n", __func__, m_last_call, wname.c_str(), ggml_op_name(t->op), (int)src1->ne[0], (int)src1->ne[1], (int)src1->type);
         }
         for (int row = 0; row < (int)src1->ne[1]; ++row) {
             const float * x = data + row * src1->ne[0];
@@ -187,7 +189,7 @@ bool IMatrixCollector::collect_imatrix(struct ggml_tensor * t, bool ask, void *
                 e.values[j] += x[j]*x[j];
                 e.counts[j]++;
                 if (!std::isfinite(e.values[j])) {
-                    fprintf(stderr, "%f detected in %s\n", e.values[j], wname.c_str());
+                    LOG_ERR("%f detected in %s\n", e.values[j], wname.c_str());
                     exit(1);
                 }
             }
@@ -239,17 +241,17 @@ void IMatrixCollector::save_imatrix(int ncall) const {
         }
 
         if (n_zeros != 0 && is_first) {
-            fprintf(stderr, "\n");
+            LOG_INF("\n");
             is_first = false;
         }
 
         if (n_zeros == n_all) {
-            fprintf(stderr, "%s: entry '%40s' has no data - skipping\n", __func__, kv.first.c_str());
+            LOG_WRN("%s: entry '%40s' has no data - skipping\n", __func__, kv.first.c_str());
             continue;
         }
 
         if (n_zeros > 0) {
-            fprintf(stderr, "%s: entry '%40s' has partial data (%.2f%%) - skipping\n", __func__, kv.first.c_str(), 100.0f * (n_all - n_zeros) / n_all);
+            LOG_WRN("%s: entry '%40s' has partial data (%.2f%%) - skipping\n", __func__, kv.first.c_str(), 100.0f * (n_all - n_zeros) / n_all);
             continue;
         }
 
@@ -258,7 +260,7 @@ void IMatrixCollector::save_imatrix(int ncall) const {
     }
 
     if (to_store.size() < m_stats.size()) {
-        fprintf(stderr, "%s: warning: storing only %zu out of %zu entries\n", __func__, to_store.size(), m_stats.size());
+        LOG_WRN("%s: storing only %zu out of %zu entries\n", __func__, to_store.size(), m_stats.size());
     }
 
     std::ofstream out(fname, std::ios::binary);
@@ -291,7 +293,7 @@ void IMatrixCollector::save_imatrix(int ncall) const {
     }
 
     if (m_params.verbosity > 0) {
-        fprintf(stderr, "\n%s: stored collected data after %d chunks in %s\n", __func__, m_last_call, fname.c_str());
+        LOG_INF("\n%s: stored collected data after %d chunks in %s\n", __func__, m_last_call, fname.c_str());
     }
 }
 
@@ -437,26 +439,25 @@ static bool compute_imatrix(llama_context * ctx, const gpt_params & params) {
     const int n_ctx = llama_n_ctx(ctx);
 
     auto tim1 = std::chrono::high_resolution_clock::now();
-    fprintf(stderr, "%s: tokenizing the input ..\n", __func__);
+    LOG_INF("%s: tokenizing the input ..\n", __func__);
 
     std::vector<llama_token> tokens = ::llama_tokenize(ctx, params.prompt, true);
 
     auto tim2 = std::chrono::high_resolution_clock::now();
-    fprintf(stderr, "%s: tokenization took %g ms\n",__func__,1e-3*std::chrono::duration_cast<std::chrono::microseconds>(tim2-tim1).count());
+    LOG_INF("%s: tokenization took %g ms\n",__func__,1e-3*std::chrono::duration_cast<std::chrono::microseconds>(tim2-tim1).count());
 
     if (params.i_chunk > 0) {
         if (size_t((params.i_chunk + 2)*n_ctx) >= tokens.size()) {
-            fprintf(stderr, "%s: there will be not enough tokens left after removing %d chunks\n", __func__, params.i_chunk);
+            LOG_ERR("%s: there will be not enough tokens left after removing %d chunks\n", __func__, params.i_chunk);
             return false;
         }
-        fprintf(stderr, "%s: removing initial %d chunks (%d tokens)\n", __func__, params.i_chunk, params.i_chunk*n_ctx);
+        LOG_INF("%s: removing initial %d chunks (%d tokens)\n", __func__, params.i_chunk, params.i_chunk*n_ctx);
         tokens.erase(tokens.begin(), tokens.begin() + params.i_chunk*n_ctx);
     }
 
     if (int(tokens.size()) < 2*n_ctx) {
-        fprintf(stderr, "%s: you need at least %d tokens for a context of %d tokens\n",__func__,2*n_ctx,
+        LOG_ERR("%s: you need at least %d tokens for a context of %d tokens\n", __func__, 2*n_ctx, n_ctx);
-                n_ctx);
+        LOG_ERR("%s: the data file you provided tokenizes to only %zu tokens\n", __func__, tokens.size());
-        fprintf(stderr, "%s: the data file you provided tokenizes to only %zu tokens\n",__func__,tokens.size());
         return false;
     }
 
@@ -478,7 +479,7 @@ static bool compute_imatrix(llama_context * ctx, const gpt_params & params) {
     double nll = 0.0;
     double nll2 = 0.0;
 
-    fprintf(stderr, "%s: computing over %d chunks with batch_size %d\n", __func__, n_chunk, n_batch);
+    LOG_INF("%s: computing over %d chunks with batch_size %d\n", __func__, n_chunk, n_batch);
 
     std::vector<std::thread> workers(std::thread::hardware_concurrency() - 1);
 
@@ -514,7 +515,7 @@ static bool compute_imatrix(llama_context * ctx, const gpt_params & params) {
 
             // TODO: use batch.logits to save computations instead of relying on logits_all == true
             if (llama_decode(ctx, llama_batch_get_one(tokens.data() + batch_start, batch_size, j * n_batch, 0))) {
-                fprintf(stderr, "%s : failed to eval\n", __func__);
+                LOG_ERR("%s : failed to eval\n", __func__);
                 return false;
             }
 
@@ -531,18 +532,18 @@ static bool compute_imatrix(llama_context * ctx, const gpt_params & params) {
 
         if (i == 0) {
             const float t_total = std::chrono::duration<float>(t_end - t_start).count();
-            fprintf(stderr, "%s: %.2f seconds per pass - ETA ", __func__, t_total);
+            LOG_INF("%s: %.2f seconds per pass - ETA ", __func__, t_total);
             int total_seconds = (int)(t_total * n_chunk);
             if (total_seconds >= 60*60) {
-                fprintf(stderr, "%d hours ", total_seconds / (60*60));
+                LOG("%d hours ", total_seconds / (60*60));
                 total_seconds = total_seconds % (60*60);
             }
-            fprintf(stderr, "%.2f minutes\n", total_seconds / 60.0);
+            LOG("%.2f minutes\n", total_seconds / 60.0);
         }
 
         if (params.compute_ppl) {
             const int first = n_ctx/2;
-            const auto all_logits = num_batches > 1 ? logits.data() : llama_get_logits(ctx);
+            const auto * all_logits = num_batches > 1 ? logits.data() : llama_get_logits(ctx);
             process_logits(n_vocab, all_logits + first*n_vocab, tokens.data() + start + first, n_ctx - 1 - first,
                     workers, nll, nll2, logit_history.data() + start + first, prob_history.data() + start + first);
             count += n_ctx - first - 1;
@@ -572,6 +573,8 @@ static bool compute_imatrix(llama_context * ctx, const gpt_params & params) {
 }
 
 int main(int argc, char ** argv) {
+    gpt_init();
+
     gpt_params params;
 
     params.n_ctx = 512;
@@ -589,7 +592,7 @@ int main(int argc, char ** argv) {
     for (const auto & in_file : params.in_files) {
         printf("%s : loading imatrix from '%s'\n", __func__, in_file.c_str());
         if (!g_collector.load_imatrix(in_file.c_str())) {
-            fprintf(stderr, "%s : failed to load %s\n", __func__, in_file.c_str());
+            LOG_ERR("%s : failed to load %s\n", __func__, in_file.c_str());
             return 1;
         }
     }
@@ -614,20 +617,20 @@ int main(int argc, char ** argv) {
     llama_model * model = llama_init.model;
     llama_context * ctx = llama_init.context;
     if (model == nullptr || ctx == nullptr) {
-        fprintf(stderr, "%s : failed to init\n", __func__);
+        LOG_ERR("%s : failed to init\n", __func__);
         return 1;
     }
 
     const int n_ctx_train = llama_n_ctx_train(model);
     if (params.n_ctx > n_ctx_train) {
-        fprintf(stderr, "%s: warning: model was trained on only %d context tokens (%d specified)\n",
+        LOG_WRN("%s: model was trained on only %d context tokens (%d specified)\n",
                 __func__, n_ctx_train, params.n_ctx);
     }
 
     // print system information
     {
-        fprintf(stderr, "\n");
+        LOG_INF("\n");
-        fprintf(stderr, "%s\n", gpt_params_get_system_info(params).c_str());
+        LOG_INF("%s\n", gpt_params_get_system_info(params).c_str());
     }
 
     if (!compute_imatrix(ctx, params)) {
@@ -636,7 +639,7 @@ int main(int argc, char ** argv) {
 
     g_collector.save_imatrix();
 
-    LOG_TEE("\n");
+    LOG("\n");
     llama_perf_context_print(ctx);
 
     llama_free(ctx);

examples/infill/infill.cpp

@@ -2,6 +2,7 @@
 #include "common.h"
 #include "console.h"
 #include "sampling.h"
+#include "log.h"
 #include "llama.h"
 
 #include <cassert>
@@ -55,7 +56,7 @@ static void write_logfile(
 
     const bool success = fs_create_directory_with_parents(params.logdir);
     if (!success) {
-        fprintf(stderr, "%s: warning: failed to create logdir %s, cannot write logfile\n",
+        LOG_ERR("%s: warning: failed to create logdir %s, cannot write logfile\n",
                 __func__, params.logdir.c_str());
         return;
     }
@@ -64,7 +65,7 @@ static void write_logfile(
     FILE * logfile = fopen(logfile_path.c_str(), "w");
 
     if (logfile == NULL) {
-        fprintf(stderr, "%s: failed to open logfile %s\n", __func__, logfile_path.c_str());
+        LOG_ERR("%s: failed to open logfile %s\n", __func__, logfile_path.c_str());
         return;
     }
 
@@ -93,7 +94,7 @@ static void sigint_handler(int signo) {
             is_interacting = true;
         } else {
             console::cleanup();
-            printf("\n");
+            LOG("\n");
             gpt_perf_print(*g_ctx, *g_smpl);
             write_logfile(*g_ctx, *g_params, *g_model, *g_input_tokens, g_output_ss->str(), *g_output_tokens);
             _exit(130);
@@ -103,6 +104,8 @@ static void sigint_handler(int signo) {
 #endif
 
 int main(int argc, char ** argv) {
+    gpt_init();
+
     gpt_params params;
     g_params = &params;
 
@@ -112,54 +115,47 @@ int main(int argc, char ** argv) {
 
     auto & sparams = params.sparams;
 
-#ifndef LOG_DISABLE_LOGS
-    log_set_target(log_filename_generator("infill", "log"));
-    LOG_TEE("Log start\n");
-    log_dump_cmdline(argc, argv);
-#endif // LOG_DISABLE_LOGS
-
     console::init(params.simple_io, params.use_color);
     atexit([]() { console::cleanup(); });
 
     if (params.logits_all) {
-        printf("\n************\n");
+        LOG_ERR("\n************\n");
-        printf("%s: please use the 'perplexity' tool for perplexity calculations\n", __func__);
+        LOG_ERR("%s: please use the 'perplexity' tool for perplexity calculations\n", __func__);
-        printf("************\n\n");
+        LOG_ERR("************\n\n");
 
         return 0;
     }
 
     if (params.embedding) {
-        printf("\n************\n");
+        LOG_ERR("\n************\n");
-        printf("%s: please use the 'embedding' tool for embedding calculations\n", __func__);
+        LOG_ERR("%s: please use the 'embedding' tool for embedding calculations\n", __func__);
-        printf("************\n\n");
+        LOG_ERR("************\n\n");
 
         return 0;
     }
 
     if (params.n_ctx != 0 && params.n_ctx < 8) {
-        LOG_TEE("%s: warning: minimum context size is 8, using minimum size.\n", __func__);
+        LOG_WRN("%s: minimum context size is 8, using minimum size.\n", __func__);
         params.n_ctx = 8;
     }
+
     if (!params.interactive_first && (params.input_prefix.empty() && params.input_suffix.empty())) {
-        printf("\n************\n");
+        LOG_ERR("\n************\n");
-        printf("%s: please use '--interactive_first' or specify '--in_prefix' and/or '--in_suffix'\n", __func__);
+        LOG_ERR("%s: please use '--interactive_first' or specify '--in_prefix' and/or '--in_suffix'\n", __func__);
-        printf("************\n\n");
+        LOG_ERR("************\n\n");
 
         return 0;
     }
 
     if (params.rope_freq_base != 0.0) {
-        LOG_TEE("%s: warning: changing RoPE frequency base to %g.\n", __func__, params.rope_freq_base);
+        LOG_WRN("%s: changing RoPE frequency base to %g.\n", __func__, params.rope_freq_base);
     }
 
     if (params.rope_freq_scale != 0.0) {
-        LOG_TEE("%s: warning: scaling RoPE frequency by %g.\n", __func__, params.rope_freq_scale);
+        LOG_WRN("%s: scaling RoPE frequency by %g.\n", __func__, params.rope_freq_scale);
     }
 
-    print_build_info();
+    LOG_INF("%s: llama backend init\n", __func__);
-
-    LOG("%s: llama backend init\n", __func__);
     llama_backend_init();
     llama_numa_init(params.numa);
 
@@ -172,34 +168,32 @@ int main(int argc, char ** argv) {
     g_smpl = &smpl;
 
     // load the model and apply lora adapter, if any
-    LOG("%s: load the model and apply lora adapter, if any\n", __func__);
+    LOG_INF("%s: load the model and apply lora adapter, if any\n", __func__);
     llama_init_result llama_init = llama_init_from_gpt_params(params);
 
     model = llama_init.model;
     ctx = llama_init.context;
 
     if (model == NULL) {
-        LOG_TEE("%s: error: unable to load model\n", __func__);
+        LOG_ERR("%s: unable to load model\n", __func__);
         return 1;
     }
 
     const int n_ctx_train = llama_n_ctx_train(model);
     const int n_ctx = llama_n_ctx(ctx);
-    LOG("n_ctx: %d\n", n_ctx);
+    LOG_DBG("n_ctx: %d\n", n_ctx);
 
     if (n_ctx > n_ctx_train) {
-        LOG_TEE("%s: warning: model was trained on only %d context tokens (%d specified)\n",
+        LOG_WRN("%s: model was trained on only %d context tokens (%d specified)\n", __func__, n_ctx_train, n_ctx);
-                __func__, n_ctx_train, n_ctx);
     }
 
     // print system information
     {
-        LOG_TEE("\n");
+        LOG_INF("\n");
-        LOG_TEE("%s\n", gpt_params_get_system_info(params).c_str());
+        LOG_INF("%s\n", gpt_params_get_system_info(params).c_str());
     }
     const bool add_bos = llama_add_bos_token(model);
     GGML_ASSERT(!llama_add_eos_token(model));
-    LOG("add_bos: %d\n", add_bos);
 
     std::vector<llama_token> embd_inp;
     std::vector<llama_token> embd_end;
@@ -224,18 +218,19 @@ int main(int argc, char ** argv) {
         embd_inp.push_back(middle_token);
     }
 
-    LOG("prefix: \"%s\"\n", log_tostr(params.input_prefix));
+    LOG_DBG("add_bos: %d\n", add_bos);
-    LOG("suffix: \"%s\"\n", log_tostr(params.input_suffix));
+    LOG_DBG("prefix: \"%s\"\n", params.input_prefix.c_str());
-    LOG("tokens: %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx, embd_inp).c_str());
+    LOG_DBG("suffix: \"%s\"\n", params.input_suffix.c_str());
+    LOG_DBG("tokens: %s\n", string_from(ctx, embd_inp).c_str());
 
     // Should not run without any tokens
     if (embd_inp.empty()) {
         embd_inp.push_back(llama_token_bos(model));
-        LOG("embd_inp was considered empty and bos was added: %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx, embd_inp).c_str());
+        LOG_WRN("embd_inp was considered empty and bos was added: %s\n", string_from(ctx, embd_inp).c_str());
     }
 
     if ((int) embd_inp.size() > n_ctx - 4) {
-        LOG_TEE("%s: error: prompt is too long (%d tokens, max %d)\n", __func__, (int) embd_inp.size(), n_ctx - 4);
+        LOG_ERR("%s: prompt is too long (%d tokens, max %d)\n", __func__, (int) embd_inp.size(), n_ctx - 4);
         return 1;
     }
 
@@ -244,9 +239,8 @@ int main(int argc, char ** argv) {
         params.n_keep = (int)embd_inp.size();
     }
 
-    LOG("inp_pfx: %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx, inp_pfx).c_str());
+    LOG_INF("inp_pfx: %s\n", string_from(ctx, inp_pfx).c_str());
-    LOG("inp_sfx: %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx, inp_sfx).c_str());
+    LOG_INF("inp_sfx: %s\n", string_from(ctx, inp_sfx).c_str());
-
 
     // enable interactive mode if interactive start is specified
     if (params.interactive_first) {
@@ -254,21 +248,21 @@ int main(int argc, char ** argv) {
     }
 
     if (params.verbose_prompt) {
-        LOG_TEE("\n");
+        LOG_INF("\n");
-        LOG_TEE("%s: prompt: '%s'\n", __func__, params.prompt.c_str());
+        LOG_INF("%s: prompt: '%s'\n", __func__, params.prompt.c_str());
-        LOG_TEE("%s: number of tokens in prompt = %zu\n", __func__, embd_inp.size());
+        LOG_INF("%s: number of tokens in prompt = %zu\n", __func__, embd_inp.size());
         for (int i = 0; i < (int) embd_inp.size(); i++) {
-            LOG_TEE("%6d -> '%s'\n", embd_inp[i], llama_token_to_piece(ctx, embd_inp[i]).c_str());
+            LOG_INF("%6d -> '%s'\n", embd_inp[i], llama_token_to_piece(ctx, embd_inp[i]).c_str());
         }
 
         if (params.n_keep > 0) {
-        LOG_TEE("%s: static prompt based on n_keep: '", __func__);
+        LOG_INF("%s: static prompt based on n_keep: '", __func__);
             for (int i = 0; i < params.n_keep; i++) {
-                LOG_TEE("%s", llama_token_to_piece(ctx, embd_inp[i]).c_str());
+                LOG("%s", llama_token_to_piece(ctx, embd_inp[i]).c_str());
             }
-            LOG_TEE("'\n");
+            LOG("'\n");
         }
-        LOG_TEE("\n");
+        LOG_INF("\n");
     }
 
     if (params.interactive) {
@@ -285,28 +279,30 @@ int main(int argc, char ** argv) {
         SetConsoleCtrlHandler(reinterpret_cast<PHANDLER_ROUTINE>(console_ctrl_handler), true);
 #endif
 
-        LOG_TEE("%s: interactive mode on.\n", __func__);
+        LOG_INF("%s: interactive mode on.\n", __func__);
 
         if (params.input_prefix_bos) {
-            LOG_TEE("Input prefix with BOS\n");
+            LOG_INF("Input prefix with BOS\n");
         }
 
         if (!params.input_prefix.empty()) {
-            LOG_TEE("Input prefix: '%s'\n", params.input_prefix.c_str());
+            LOG_INF("Input prefix: '%s'\n", params.input_prefix.c_str());
         }
 
         if (!params.input_suffix.empty()) {
-            LOG_TEE("Input suffix: '%s'\n", params.input_suffix.c_str());
+            LOG_INF("Input suffix: '%s'\n", params.input_suffix.c_str());
         }
     }
     smpl = gpt_sampler_init(model, sparams);
 
-    LOG_TEE("sampling seed: %u\n", gpt_sampler_get_seed(smpl));
+    LOG_INF("sampler seed: %u\n",     gpt_sampler_get_seed(smpl));
-    LOG_TEE("sampling: \n%s\n", sparams.print().c_str());
+    LOG_INF("sampler params: \n%s\n", sparams.print().c_str());
-    LOG_TEE("generate: n_ctx = %d, n_batch = %d, n_predict = %d, n_keep = %d\n", n_ctx, params.n_batch, params.n_predict, params.n_keep);
+    LOG_INF("sampler chain: %s\n",    gpt_sampler_print(smpl).c_str());
-    LOG_TEE("\n\n");
 
-    LOG_TEE("\n#####  Infill mode  #####\n\n");
+    LOG_INF("generate: n_ctx = %d, n_batch = %d, n_predict = %d, n_keep = %d\n", n_ctx, params.n_batch, params.n_predict, params.n_keep);
+
+    LOG("\n");
+    LOG("\n#####  Infill mode  #####\n\n");
     if (params.interactive) {
         const char *control_message;
         if (params.multiline_input) {
@@ -317,11 +313,11 @@ int main(int argc, char ** argv) {
                               " - To return control without starting a new line, end your input with '/'.\n"
                               " - If you want to submit another line, end your input with '\\'.\n";
         }
-        LOG_TEE("== Running in interactive mode. ==\n");
+        LOG("== Running in interactive mode. ==\n");
 #if defined (__unix__) || (defined (__APPLE__) && defined (__MACH__)) || defined (_WIN32)
-        LOG_TEE(       " - Press Ctrl+C to interject at any time.\n");
+        LOG(       " - Press Ctrl+C to interject at any time.\n");
 #endif
-        LOG_TEE(       "%s\n", control_message);
+        LOG(       "%s\n", control_message);
 
         is_interacting = params.interactive_first;
     }
@@ -354,9 +350,8 @@ int main(int argc, char ** argv) {
                 embd.resize(max_embd_size);
 
                 console::set_display(console::error);
-                printf("<<input too long: skipped %d token%s>>", skipped_tokens, skipped_tokens != 1 ? "s" : "");
+                LOG_WRN("<<input too long: skipped %d token%s>>", skipped_tokens, skipped_tokens != 1 ? "s" : "");
                 console::set_display(console::reset);
-                fflush(stdout);
             }
 
             // infinite text generation via context swapping
@@ -365,14 +360,14 @@ int main(int argc, char ** argv) {
             // - take half of the last (n_ctx - n_keep) tokens and recompute the logits in batches
             if (n_past + (int) embd.size() > n_ctx) {
                 if (params.n_predict == -2) {
-                    LOG_TEE("\n\n%s: context full and n_predict == -%d => stopping\n", __func__, params.n_predict);
+                    LOG_DBG("\n\n%s: context full and n_predict == -%d => stopping\n", __func__, params.n_predict);
                     break;
                 }
 
                 const int n_left    = n_past - params.n_keep - 1;
                 const int n_discard = n_left/2;
 
-                LOG("context full, swapping: n_past = %d, n_left = %d, n_ctx = %d, n_keep = %d, n_discard = %d\n",
+                LOG_DBG("context full, swapping: n_past = %d, n_left = %d, n_ctx = %d, n_keep = %d, n_discard = %d\n",
                     n_past, n_left, n_ctx, params.n_keep, n_discard);
 
                 llama_kv_cache_seq_rm (ctx, 0, params.n_keep + 1            , params.n_keep + n_discard + 1);
@@ -380,9 +375,9 @@ int main(int argc, char ** argv) {
 
                 n_past -= n_discard;
 
-                LOG("after swap: n_past = %d\n", n_past);
+                LOG_DBG("after swap: n_past = %d\n", n_past);
 
-                LOG("embd: %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx, embd).c_str());
+                LOG_DBG("embd: %s\n", string_from(ctx, embd).c_str());
 
             }
 
@@ -394,16 +389,16 @@ int main(int argc, char ** argv) {
                     n_eval = params.n_batch;
                 }
 
-                LOG("eval: %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx, embd).c_str());
+                LOG_DBG("eval: %s\n", string_from(ctx, embd).c_str());
 
                 if (llama_decode(ctx, llama_batch_get_one(&embd[i], n_eval, n_past, 0))) {
-                    LOG_TEE("%s : failed to eval\n", __func__);
+                    LOG_ERR("%s : failed to eval\n", __func__);
                     return 1;
                 }
 
                 n_past += n_eval;
 
-                LOG("n_past = %d\n", n_past);
+                LOG_DBG("n_past = %d\n", n_past);
             }
 
         }
@@ -415,7 +410,7 @@ int main(int argc, char ** argv) {
 
             gpt_sampler_accept(smpl, id, true);
 
-            // LOG("last: %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx, smpl->prev.to_vector()).c_str());
+            // LOG_DBG("last: %s\n", string_from(ctx, smpl->prev.to_vector()).c_str());
 
             embd.push_back(id);
 
@@ -425,10 +420,10 @@ int main(int argc, char ** argv) {
             // decrement remaining sampling budget
             --n_remain;
 
-            LOG("n_remain: %d\n", n_remain);
+            LOG_DBG("n_remain: %d\n", n_remain);
         } else {
             // some user input remains from prompt or interaction, forward it to processing
-            LOG("embd_inp.size(): %d, n_consumed: %d\n", (int) embd_inp.size(), n_consumed);
+            LOG_DBG("embd_inp.size(): %d, n_consumed: %d\n", (int) embd_inp.size(), n_consumed);
             while ((int) embd_inp.size() > n_consumed) {
                 embd.push_back(embd_inp[n_consumed]);
 
@@ -447,7 +442,7 @@ int main(int argc, char ** argv) {
         if (input_echo) {
             for (auto id : embd) {
                 const std::string token_str = llama_token_to_piece(ctx, id);
-                printf("%s", token_str.c_str());
+                LOG("%s", token_str.c_str());
 
                 if (embd.size() > 1) {
                     input_tokens.push_back(id);
@@ -456,7 +451,6 @@ int main(int argc, char ** argv) {
                     output_ss << token_str;
                 }
             }
-            fflush(stdout);
         }
         // reset color to default if we there is no pending user input
         if (input_echo && (int) embd_inp.size() == n_consumed) {
@@ -469,10 +463,9 @@ int main(int argc, char ** argv) {
             if ((gpt_sampler_last(smpl) == llama_token_eot(model) || is_interacting) && params.interactive){
                 if (is_interacting && !params.interactive_first) {
                     // print an eot token
-                    printf("%s", llama_token_to_piece(ctx, llama_token_eot(model)).c_str());
+                    LOG("%s", llama_token_to_piece(ctx, llama_token_eot(model)).c_str());
                 }
-                fflush(stdout);
+                LOG("\n");
-                printf("\n");
                 console::set_display(console::user_input);
                 std::string buffer;
                 std::string line;
@@ -528,35 +521,33 @@ int main(int argc, char ** argv) {
                 n_remain = params.n_predict;
                 n_past = 0;
                 n_consumed = 0;
-                // LOG_TEE("took new input\n");
                 is_interacting = false;
             }
             // deal with end of generation tokens in interactive mode
             else if (llama_token_is_eog(model, gpt_sampler_last(smpl))) {
-                LOG("found EOS token\n");
+                LOG_DBG("found EOS token\n");
 
                 if (params.interactive) {
 
                     is_interacting = true;
-                    printf("\n");
+                    LOG("\n");
                     console::set_display(console::user_input);
-                    fflush(stdout);
                }
             }
 
             if (n_past > 0 && is_interacting && !params.interactive) {
-                LOG("waiting for user input\n");
+                LOG_DBG("waiting for user input\n");
 
                 if (params.input_prefix_bos) {
-                    LOG("adding input prefix BOS token\n");
+                    LOG_DBG("adding input prefix BOS token\n");
                     embd_inp.push_back(llama_token_bos(model));
                 }
 
                 std::string buffer;
                 if (!params.input_prefix.empty()) {
-                    LOG("appending input prefix: '%s'\n", params.input_prefix.c_str());
+                    LOG_DBG("appending input prefix: '%s'\n", params.input_prefix.c_str());
                     buffer += params.input_prefix;
-                    printf("%s", buffer.c_str());
+                    LOG("%s", buffer.c_str());
                 }
 
                 std::string line;
@@ -574,17 +565,17 @@ int main(int argc, char ** argv) {
                 if (buffer.length() > 1) {
                     // append input suffix if any
                     if (!params.input_suffix.empty()) {
-                        LOG("appending input suffix: '%s'\n", params.input_suffix.c_str());
+                        LOG_DBG("appending input suffix: '%s'\n", params.input_suffix.c_str());
                         buffer += params.input_suffix;
-                        printf("%s", params.input_suffix.c_str());
+                        LOG("%s", params.input_suffix.c_str());
                     }
 
-                    LOG("buffer: '%s'\n", buffer.c_str());
+                    LOG_DBG("buffer: '%s'\n", buffer.c_str());
 
                     const size_t original_size = embd_inp.size();
 
                     const auto line_inp = ::llama_tokenize(ctx, buffer, false);
-                    LOG("input tokens: %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx, line_inp).c_str());
+                    LOG_DBG("input tokens: %s\n", string_from(ctx, line_inp).c_str());
 
                     embd_inp.insert(embd_inp.end(), line_inp.begin(), line_inp.end());
 
@@ -595,9 +586,9 @@ int main(int argc, char ** argv) {
                     }
 
                     n_remain -= line_inp.size();
-                    LOG("n_remain: %d\n", n_remain);
+                    LOG_DBG("n_remain: %d\n", n_remain);
                 } else {
-                    LOG("empty line, passing control back\n");
+                    LOG_DBG("empty line, passing control back\n");
                 }
 
                 input_echo = false; // do not echo this again
@@ -624,11 +615,10 @@ int main(int argc, char ** argv) {
         }
     }
     if (!params.interactive && n_remain <= 0) {
-        printf("%s", llama_token_to_piece(ctx, llama_token_eot(model)).c_str());
+        LOG("%s", llama_token_to_piece(ctx, llama_token_eot(model)).c_str());
-        fflush(stdout);
     }
 
-    LOG_TEE("\n");
+    LOG("\n");
     gpt_perf_print(ctx, smpl);
     write_logfile(ctx, params, model, input_tokens, output_ss.str(), output_tokens);
 
@@ -638,9 +628,5 @@ int main(int argc, char ** argv) {
     gpt_sampler_free(smpl);
     llama_backend_free();
 
-#ifndef LOG_DISABLE_LOGS
-    LOG_TEE("Log end\n");
-#endif // LOG_DISABLE_LOGS
-
     return 0;
 }

examples/llava/clip.cpp

@@ -3,7 +3,6 @@
 // I'll gradually clean and extend it
 // Note: Even when using identical normalized image inputs (see normalize_image_u8_to_f32()) we have a significant difference in resulting embeddings compared to pytorch
 #include "clip.h"
-#include "log.h"
 #include "ggml.h"
 #include "ggml-alloc.h"
 #include "ggml-backend.h"
@@ -40,6 +39,11 @@
 #include <cinttypes>
 #include <limits>
 
+#define LOG_INF(...) do { fprintf(stdout, __VA_ARGS__); } while (0)
+#define LOG_WRN(...) do { fprintf(stderr, __VA_ARGS__); } while (0)
+#define LOG_ERR(...) do { fprintf(stderr, __VA_ARGS__); } while (0)
+#define LOG_DBG(...) do { fprintf(stdout, __VA_ARGS__); } while (0)
+
 //#define CLIP_DEBUG_FUNCTIONS
 
 // RGB uint8 image
@@ -165,7 +169,7 @@ static std::map<projector_type, std::string> PROJECTOR_TYPE_NAMES = {
 static int get_key_idx(const gguf_context * ctx, const char * key) {
     int i = gguf_find_key(ctx, key);
     if (i == -1) {
-        LOG_TEE("key %s not found in file\n", key);
+        LOG_ERR("key %s not found in file\n", key);
         throw std::runtime_error(format("Missing required key: %s", key));
     }
 
@@ -270,7 +274,7 @@ static std::string gguf_kv_to_str(const struct gguf_context * ctx_gguf, int i) {
 
 static void print_tensor_info(const ggml_tensor * tensor, const char * prefix = "") {
     size_t tensor_size = ggml_nbytes(tensor);
-    LOG_TEE("%s: n_dims = %d, name = %s, tensor_size=%zu, shape:[%" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 "], type = %s\n",
+    LOG_INF("%s: n_dims = %d, name = %s, tensor_size=%zu, shape:[%" PRId64 ", %" PRId64 ", %" PRId64 ", %" PRId64 "], type = %s\n",
             prefix, ggml_n_dims(tensor), tensor->name, tensor_size,
             tensor->ne[0], tensor->ne[1], tensor->ne[2], tensor->ne[3], ggml_type_name(tensor->type));
 }
@@ -288,7 +292,7 @@ static projector_type clip_projector_type_from_string(const std::string & name)
 static void clip_image_write_image_to_ppm(const clip_image_u8& img, const std::string& filename) {
     std::ofstream file(filename, std::ios::binary);
     if (!file.is_open()) {
-        LOG_TEE("Failed to open file for writing: %s\n", filename.c_str());
+        LOG_ERR("Failed to open file for writing: %s\n", filename.c_str());
         return;
     }
 
@@ -307,7 +311,7 @@ static void clip_image_write_image_to_ppm(const clip_image_u8& img, const std::s
 static void clip_image_save_to_bmp(const clip_image_u8& img, const std::string& filename) {
     std::ofstream file(filename, std::ios::binary);
     if (!file.is_open()) {
-        LOG_TEE("Failed to open file for writing: %s\n", filename.c_str());
+        LOG_ERR("Failed to open file for writing: %s\n", filename.c_str());
         return;
     }
 
@@ -568,7 +572,7 @@ struct clip_ctx {
 
 static ggml_cgraph * clip_image_build_graph(clip_ctx * ctx, const clip_image_f32_batch * imgs, struct clip_image_size * load_image_size, bool is_inf = false) {
     if (!ctx->has_vision_encoder) {
-        LOG_TEE("This gguf file seems to have no vision encoder\n");
+        LOG_ERR("This gguf file seems to have no vision encoder\n");
         return nullptr;
     }
 
@@ -582,7 +586,7 @@ static ggml_cgraph * clip_image_build_graph(clip_ctx * ctx, const clip_image_f32
         if (load_image_size == nullptr) {
             load_image_size = clip_image_size_init();
         }
-        LOG_TEE("%s: %d %d\n", __func__, load_image_size->width, load_image_size->height);
+        LOG_DBG("%s: %d %d\n", __func__, load_image_size->width, load_image_size->height);
         image_size_width  = load_image_size->width;
         image_size_height = load_image_size->height;
         if (is_inf) {
@@ -1047,21 +1051,21 @@ struct clip_ctx * clip_model_load(const char * fname, const int verbosity = 1) {
         const int idx_name = gguf_find_key(ctx, KEY_NAME);
         if (idx_name != -1) { // make name optional temporarily as some of the uploaded models missing it due to a bug
             const std::string name = gguf_get_val_str(ctx, idx_name);
-            LOG_TEE("%s: model name:   %s\n", __func__, name.c_str());
+            LOG_INF("%s: model name:   %s\n", __func__, name.c_str());
         }
-        LOG_TEE("%s: description:  %s\n", __func__, description.c_str());
+        LOG_INF("%s: description:  %s\n", __func__, description.c_str());
-        LOG_TEE("%s: GGUF version: %d\n", __func__, gguf_get_version(ctx));
+        LOG_INF("%s: GGUF version: %d\n", __func__, gguf_get_version(ctx));
-        LOG_TEE("%s: alignment:    %zu\n", __func__, gguf_get_alignment(ctx));
+        LOG_INF("%s: alignment:    %zu\n", __func__, gguf_get_alignment(ctx));
-        LOG_TEE("%s: n_tensors:    %d\n", __func__, n_tensors);
+        LOG_INF("%s: n_tensors:    %d\n", __func__, n_tensors);
-        LOG_TEE("%s: n_kv:         %d\n", __func__, n_kv);
+        LOG_INF("%s: n_kv:         %d\n", __func__, n_kv);
-        LOG_TEE("%s: ftype:        %s\n", __func__, ftype_str.c_str());
+        LOG_INF("%s: ftype:        %s\n", __func__, ftype_str.c_str());
-        LOG_TEE("\n");
+        LOG_INF("\n");
     }
     const int n_tensors = gguf_get_n_tensors(ctx);
 
     // kv
     const int n_kv = gguf_get_n_kv(ctx);
-    LOG_TEE("%s: loaded meta data with %d key-value pairs and %d tensors from %s\n",
+    LOG_INF("%s: loaded meta data with %d key-value pairs and %d tensors from %s\n",
         __func__, n_kv, n_tensors, fname);
     {
         std::map<enum ggml_type, uint32_t> n_type;
@@ -1072,7 +1076,7 @@ struct clip_ctx * clip_model_load(const char * fname, const int verbosity = 1) {
             n_type[type]++;
         }
 
-        LOG_TEE("%s: Dumping metadata keys/values. Note: KV overrides do not apply in this output.\n", __func__);
+        LOG_INF("%s: Dumping metadata keys/values. Note: KV overrides do not apply in this output.\n", __func__);
         for (int i = 0; i < n_kv; i++) {
             const char * name           = gguf_get_key(ctx, i);
             const enum gguf_type type   = gguf_get_kv_type(ctx, i);
@@ -1088,7 +1092,7 @@ struct clip_ctx * clip_model_load(const char * fname, const int verbosity = 1) {
             }
             replace_all(value, "\n", "\\n");
 
-            LOG_TEE("%s: - kv %3d: %42s %-16s = %s\n", __func__, i, name, type_name.c_str(), value.c_str());
+            LOG_INF("%s: - kv %3d: %42s %-16s = %s\n", __func__, i, name, type_name.c_str(), value.c_str());
         }
 
         // print type counts
@@ -1097,7 +1101,7 @@ struct clip_ctx * clip_model_load(const char * fname, const int verbosity = 1) {
                 continue;
             }
 
-            LOG_TEE("%s: - type %4s: %4d tensors\n", __func__, ggml_type_name(kv.first), kv.second);
+            LOG_INF("%s: - type %4s: %4d tensors\n", __func__, ggml_type_name(kv.first), kv.second);
         }
     }
 
@@ -1112,7 +1116,7 @@ struct clip_ctx * clip_model_load(const char * fname, const int verbosity = 1) {
             size_t tensor_size = ggml_nbytes(cur);
             model_size += tensor_size;
             if (verbosity >= 3) {
-                LOG_TEE("%s: tensor[%d]: n_dims = %d, name = %s, tensor_size=%zu, offset=%zu, shape:[%" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 "], type = %s\n",
+                LOG_INF("%s: tensor[%d]: n_dims = %d, name = %s, tensor_size=%zu, offset=%zu, shape:[%" PRIu64 ", %" PRIu64 ", %" PRIu64 ", %" PRIu64 "], type = %s\n",
                        __func__, i, ggml_n_dims(cur), cur->name, tensor_size, offset, cur->ne[0], cur->ne[1], cur->ne[2], cur->ne[3], ggml_type_name(type));
             }
         }
@@ -1139,27 +1143,27 @@ struct clip_ctx * clip_model_load(const char * fname, const int verbosity = 1) {
 
 #ifdef GGML_USE_CUDA
     new_clip->backend = ggml_backend_cuda_init(0);
-    LOG_TEE("%s: CLIP using CUDA backend\n", __func__);
+    LOG_INF("%s: CLIP using CUDA backend\n", __func__);
 #endif
 
 #ifdef GGML_USE_METAL
     new_clip->backend = ggml_backend_metal_init();
-    LOG_TEE("%s: CLIP using Metal backend\n", __func__);
+    LOG_INF("%s: CLIP using Metal backend\n", __func__);
 #endif
 
 #ifdef GGML_USE_CANN
     new_clip->backend = ggml_backend_cann_init(0);
-    LOG_TEE("%s: CLIP using CANN backend\n", __func__);
+    LOG_INF("%s: CLIP using CANN backend\n", __func__);
 #endif
 
 #ifdef GGML_USE_VULKAN
     new_clip->backend = ggml_backend_vk_init(0);
-    LOG_TEE("%s: CLIP using Vulkan backend\n", __func__);
+    LOG_INF("%s: CLIP using Vulkan backend\n", __func__);
 #endif
 
     if (!new_clip->backend) {
         new_clip->backend = ggml_backend_cpu_init();
-        LOG_TEE("%s: CLIP using CPU backend\n", __func__);
+        LOG_INF("%s: CLIP using CPU backend\n", __func__);
     }
 
     // model size and capabilities
@@ -1194,16 +1198,16 @@ struct clip_ctx * clip_model_load(const char * fname, const int verbosity = 1) {
         new_clip->use_gelu = gguf_get_val_bool(ctx, idx);
 
         if (verbosity >= 1) {
-            LOG_TEE("%s: text_encoder:   %d\n", __func__, new_clip->has_text_encoder);
+            LOG_INF("%s: text_encoder:   %d\n", __func__, new_clip->has_text_encoder);
-            LOG_TEE("%s: vision_encoder: %d\n", __func__, new_clip->has_vision_encoder);
+            LOG_INF("%s: vision_encoder: %d\n", __func__, new_clip->has_vision_encoder);
-            LOG_TEE("%s: llava_projector:  %d\n", __func__, new_clip->has_llava_projector);
+            LOG_INF("%s: llava_projector:  %d\n", __func__, new_clip->has_llava_projector);
-            LOG_TEE("%s: minicpmv_projector:  %d\n", __func__, new_clip->has_minicpmv_projector);
+            LOG_INF("%s: minicpmv_projector:  %d\n", __func__, new_clip->has_minicpmv_projector);
-            LOG_TEE("%s: model size:     %.2f MB\n", __func__, model_size / 1024.0 / 1024.0);
+            LOG_INF("%s: model size:     %.2f MB\n", __func__, model_size / 1024.0 / 1024.0);
-            LOG_TEE("%s: metadata size:  %.2f MB\n", __func__, ggml_get_mem_size(meta) / 1024.0 / 1024.0);
+            LOG_INF("%s: metadata size:  %.2f MB\n", __func__, ggml_get_mem_size(meta) / 1024.0 / 1024.0);
         }
     }
 
-    LOG_TEE("%s: params backend buffer size = % 6.2f MB (%i tensors)\n", __func__, model_size / (1024.0 * 1024.0), n_tensors);
+    LOG_INF("%s: params backend buffer size = % 6.2f MB (%i tensors)\n", __func__, model_size / (1024.0 * 1024.0), n_tensors);
 
     // load tensors
     {
@@ -1216,7 +1220,7 @@ struct clip_ctx * clip_model_load(const char * fname, const int verbosity = 1) {
 
         new_clip->ctx_data = ggml_init(params);
         if (!new_clip->ctx_data) {
-            LOG_TEE("%s: ggml_init() failed\n", __func__);
+            LOG_ERR("%s: ggml_init() failed\n", __func__);
             clip_free(new_clip);
             gguf_free(ctx);
             return nullptr;
@@ -1224,7 +1228,7 @@ struct clip_ctx * clip_model_load(const char * fname, const int verbosity = 1) {
 
         auto fin = std::ifstream(fname, std::ios::binary);
         if (!fin) {
-            LOG_TEE("cannot open model file for loading tensors\n");
+            LOG_ERR("cannot open model file for loading tensors\n");
             clip_free(new_clip);
             gguf_free(ctx);
             return nullptr;
@@ -1246,7 +1250,7 @@ struct clip_ctx * clip_model_load(const char * fname, const int verbosity = 1) {
             const size_t offset = gguf_get_data_offset(ctx) + gguf_get_tensor_offset(ctx, i);
             fin.seekg(offset, std::ios::beg);
             if (!fin) {
-                LOG_TEE("%s: failed to seek for tensor %s\n", __func__, name);
+                LOG_ERR("%s: failed to seek for tensor %s\n", __func__, name);
                 clip_free(new_clip);
                 gguf_free(ctx);
                 return nullptr;
@@ -1317,23 +1321,23 @@ struct clip_ctx * clip_model_load(const char * fname, const int verbosity = 1) {
         }
 
         if (verbosity >= 2) {
-            LOG_TEE("\n%s: vision model hparams\n", __func__);
+            LOG_INF("\n%s: vision model hparams\n", __func__);
-            LOG_TEE("image_size         %d\n", hparams.image_size);
+            LOG_INF("image_size         %d\n", hparams.image_size);
-            LOG_TEE("patch_size         %d\n", hparams.patch_size);
+            LOG_INF("patch_size         %d\n", hparams.patch_size);
-            LOG_TEE("v_hidden_size      %d\n", hparams.hidden_size);
+            LOG_INF("v_hidden_size      %d\n", hparams.hidden_size);
-            LOG_TEE("v_n_intermediate   %d\n", hparams.n_intermediate);
+            LOG_INF("v_n_intermediate   %d\n", hparams.n_intermediate);
-            LOG_TEE("v_projection_dim   %d\n", hparams.projection_dim);
+            LOG_INF("v_projection_dim   %d\n", hparams.projection_dim);
-            LOG_TEE("v_n_head           %d\n", hparams.n_head);
+            LOG_INF("v_n_head           %d\n", hparams.n_head);
-            LOG_TEE("v_n_layer          %d\n", hparams.n_layer);
+            LOG_INF("v_n_layer          %d\n", hparams.n_layer);
-            LOG_TEE("v_eps              %f\n", hparams.eps);
+            LOG_INF("v_eps              %f\n", hparams.eps);
-            LOG_TEE("v_image_mean       %f %f %f\n", new_clip->image_mean[0], new_clip->image_mean[1], new_clip->image_mean[2]);
+            LOG_INF("v_image_mean       %f %f %f\n", new_clip->image_mean[0], new_clip->image_mean[1], new_clip->image_mean[2]);
-            LOG_TEE("v_image_std        %f %f %f\n", new_clip->image_std[0], new_clip->image_std[1], new_clip->image_std[2]);
+            LOG_INF("v_image_std        %f %f %f\n", new_clip->image_std[0], new_clip->image_std[1], new_clip->image_std[2]);
-            LOG_TEE("v_image_grid_pinpoints: ");
+            LOG_INF("v_image_grid_pinpoints: ");
             for (int i = 0; i < 32 && (hparams.image_grid_pinpoints[i] != 0); ++i) {
-                LOG_TEE("%d ", hparams.image_grid_pinpoints[i]);
+                LOG_INF("%d ", hparams.image_grid_pinpoints[i]);
             }
-            LOG_TEE("\n");
+            LOG_INF("\n");
-            LOG_TEE("v_mm_patch_merge_type: %s\n", hparams.mm_patch_merge_type);
+            LOG_INF("v_mm_patch_merge_type: %s\n", hparams.mm_patch_merge_type);
 
         }
 
@@ -1371,7 +1375,7 @@ struct clip_ctx * clip_model_load(const char * fname, const int verbosity = 1) {
             vision_model.patch_embeddings    = get_tensor(new_clip->ctx_data, TN_PATCH_EMBD);
             vision_model.position_embeddings = get_tensor(new_clip->ctx_data, format(TN_POS_EMBD, "v"));
         } catch(const std::exception& /*e*/) {
-            LOG_TEE("%s: failed to load vision model tensors\n", __func__);
+            LOG_ERR("%s: failed to load vision model tensors\n", __func__);
         }
 
         // LLaVA projection
@@ -1400,7 +1404,7 @@ struct clip_ctx * clip_model_load(const char * fname, const int verbosity = 1) {
             } catch (std::runtime_error & /*e*/) { }
             try {
                 vision_model.image_newline = get_tensor(new_clip->ctx_data, TN_IMAGE_NEWLINE);
-                // LOG_TEE("%s: image_newline tensor (llava-1.6) found\n", __func__);
+                // LOG_INF("%s: image_newline tensor (llava-1.6) found\n", __func__);
             } catch (std::runtime_error & /*e*/) { }
         } else if (new_clip->proj_type == PROJECTOR_TYPE_LDP) {
             // MobileVLM projection
@@ -1501,7 +1505,7 @@ struct clip_ctx * clip_model_load(const char * fname, const int verbosity = 1) {
         ggml_cgraph * gf = clip_image_build_graph(new_clip, &batch, nullptr, false);
         ggml_gallocr_reserve(new_clip->compute_alloc, gf);
         size_t compute_memory_buffer_size = ggml_gallocr_get_buffer_size(new_clip->compute_alloc, 0);
-        LOG_TEE("%s: compute allocated memory: %.2f MB\n", __func__, compute_memory_buffer_size /1024.0/1024.0);
+        LOG_INF("%s: compute allocated memory: %.2f MB\n", __func__, compute_memory_buffer_size /1024.0/1024.0);
     }
 
     return new_clip;
@@ -1552,7 +1556,7 @@ bool clip_image_load_from_file(const char * fname, clip_image_u8 * img) {
     int nx, ny, nc;
     auto * data = stbi_load(fname, &nx, &ny, &nc, 3);
     if (!data) {
-        LOG_TEE("%s: failed to load image '%s'\n", __func__, fname);
+        LOG_ERR("%s: failed to load image '%s'\n", __func__, fname);
         return false;
     }
     build_clip_img_from_data(data, nx, ny, img);
@@ -1564,7 +1568,7 @@ bool clip_image_load_from_bytes(const unsigned char * bytes, size_t bytes_length
     int nx, ny, nc;
     auto * data = stbi_load_from_memory(bytes, bytes_length, &nx, &ny, &nc, 3);
     if (!data) {
-        LOG_TEE("%s: failed to decode image bytes\n", __func__);
+        LOG_ERR("%s: failed to decode image bytes\n", __func__);
         return false;
     }
     build_clip_img_from_data(data, nx, ny, img);
@@ -1754,7 +1758,7 @@ static std::pair<int, int> select_best_resolution(const std::pair<int, int> & or
         int downscaled_height = static_cast<int>(original_height * scale);
         int effective_resolution = std::min(downscaled_width * downscaled_height, original_width * original_height);
         int wasted_resolution = (width * height) - effective_resolution;
-        // LOG_TEE("resolution: %d %d, scale: %f, downscaled: %d %d, effective: %d, wasted: %d\n", width, height, scale, downscaled_width, downscaled_height, effective_resolution, wasted_resolution);
+        // LOG_INF("resolution: %d %d, scale: %f, downscaled: %d %d, effective: %d, wasted: %d\n", width, height, scale, downscaled_width, downscaled_height, effective_resolution, wasted_resolution);
         if (effective_resolution > max_effective_resolution || (effective_resolution == max_effective_resolution && wasted_resolution < min_wasted_resolution)) {
             max_effective_resolution = effective_resolution;
             min_wasted_resolution = wasted_resolution;
@@ -1872,7 +1876,7 @@ static std::vector<std::vector<clip_image_u8 *>> uhd_slice_image(const clip_imag
     const int multiple = fmin(ceil(ratio), max_slice_nums);
 
     std::vector<std::vector<clip_image_u8 *>> images;
-    LOG_TEE("%s: multiple %d\n", __func__, multiple);
+    LOG_INF("%s: multiple %d\n", __func__, multiple);
     images.push_back(std::vector<clip_image_u8 *>());
 
     if (multiple <= 1) {
@@ -1887,17 +1891,17 @@ static std::vector<std::vector<clip_image_u8 *>> uhd_slice_image(const clip_imag
         clip_image_u8 * source_image = clip_image_u8_init();
         bicubic_resize(*img, *source_image, best_size.first, best_size.second);
         // source_image = image.copy().resize(best_resize, Image.Resampling.BICUBIC)
-        LOG_TEE("%s: image_size: %d %d; source_image size: %d %d\n", __func__, img->nx, img->ny, best_size.first, best_size.second);
+        LOG_INF("%s: image_size: %d %d; source_image size: %d %d\n", __func__, img->nx, img->ny, best_size.first, best_size.second);
         images[images.size()-1].push_back(source_image);
 
         std::pair<int, int> best_grid = uhd_best_grid(max_slice_nums, multiple, log_ratio);
-        LOG_TEE("%s: image_size: %d %d; best_grid: %d %d\n", __func__, img->nx, img->ny, best_grid.first, best_grid.second);
+        LOG_INF("%s: image_size: %d %d; best_grid: %d %d\n", __func__, img->nx, img->ny, best_grid.first, best_grid.second);
 
         auto refine_size = uhd_get_refine_size(original_size, best_grid, scale_resolution, patch_size, true);
         clip_image_u8 * refine_image = clip_image_u8_init();
         bicubic_resize(*img, *refine_image, refine_size.first, refine_size.second);
 
-        LOG_TEE("%s: refine_image_size: %d %d; refine_size: %d %d\n", __func__, refine_image->nx, refine_image->ny, refine_size.first, refine_size.second);
+        LOG_INF("%s: refine_image_size: %d %d; refine_size: %d %d\n", __func__, refine_image->nx, refine_image->ny, refine_size.first, refine_size.second);
 
         // split_to_patches
         int width = refine_image->nx;
@@ -1954,7 +1958,7 @@ bool clip_image_preprocess(struct clip_ctx * ctx, const clip_image_u8 * img, cli
         int idx = 0;
         for (size_t i = 0; i < imgs.size(); ++i) {
             for (size_t j = 0; j < imgs[i].size(); ++j) {
-                LOG_TEE("%s: %d %d\n", __func__,imgs[i][j]->nx,imgs[i][j]->ny);
+                LOG_DBG("%s: %d %d\n", __func__,imgs[i][j]->nx,imgs[i][j]->ny);
                 clip_image_f32 * res = clip_image_f32_init();
                 normalize_image_u8_to_f32(imgs[i][j], res, ctx->image_mean, ctx->image_std);
                 res_imgs->data[idx++] = *res;
@@ -1966,7 +1970,7 @@ bool clip_image_preprocess(struct clip_ctx * ctx, const clip_image_u8 * img, cli
 
     bool pad_to_square = true;
     if (!ctx->has_vision_encoder) {
-        LOG_TEE("This gguf file seems to have no vision encoder\n");
+        LOG_ERR("This gguf file seems to have no vision encoder\n");
         return false;
     }
     auto & params = ctx->vision_model.hparams;
@@ -2043,7 +2047,7 @@ bool clip_image_preprocess(struct clip_ctx * ctx, const clip_image_u8 * img, cli
             }
 
             for (size_t i = 0; i < patches.size(); i++) {
-                // LOG_TEE("patch %d: %d %d\n", i, patches[i]->nx, patches[i]->ny);
+                // LOG_DBG("patch %d: %d %d\n", i, patches[i]->nx, patches[i]->ny);
                 clip_image_u8_free(patches[i]);
             }
 
@@ -2279,7 +2283,7 @@ static std::vector<std::vector<float>> get_2d_sincos_pos_embed(int embed_dim, co
 
 bool clip_image_encode(struct clip_ctx * ctx, const int n_threads, clip_image_f32 * img, float * vec) {
     if (!ctx->has_vision_encoder) {
-        LOG_TEE("This gguf file seems to have no vision encoder\n");
+        LOG_ERR("This gguf file seems to have no vision encoder\n");
         return false;
     }
 
@@ -2291,7 +2295,7 @@ bool clip_image_encode(struct clip_ctx * ctx, const int n_threads, clip_image_f3
 
 bool clip_image_batch_encode(clip_ctx * ctx, const int n_threads, const clip_image_f32_batch * imgs, float * vec) {
     if (!ctx->has_vision_encoder) {
-        LOG_TEE("This gguf file seems to have no vision encoder\n");
+        LOG_ERR("This gguf file seems to have no vision encoder\n");
         return false;
     }
 
@@ -2521,7 +2525,7 @@ bool clip_model_quantize(const char * fname_inp, const char * fname_out, const i
             new_type = type;
             if (new_type >= GGML_TYPE_Q2_K && name.find("embd") != std::string::npos) {
                 new_type = GGML_TYPE_Q8_0; // ggml_get_rows needs non K type
-                // LOG_TEE("%s: quantizing %s to %s\n", __func__, name.c_str(), ggml_type_name(new_type));
+                // LOG_ERR("%s: quantizing %s to %s\n", __func__, name.c_str(), ggml_type_name(new_type));
             }
             const size_t n_elms = ggml_nelements(cur);
             float * f32_data;
@@ -2540,7 +2544,7 @@ bool clip_model_quantize(const char * fname_inp, const char * fname_out, const i
                 f32_data = (float *)conv_buf.data();
                 break;
             default:
-                LOG_TEE("Please use an input file in f32 or f16\n");
+                LOG_ERR("Please use an input file in f32 or f16\n");
                 gguf_free(ctx_out);
                 return false;
             }
@@ -2567,7 +2571,7 @@ bool clip_model_quantize(const char * fname_inp, const char * fname_out, const i
             fout.put(0);
         }
 
-        LOG_TEE("%s: n_dims = %d | quantize=%d | size = %f MB -> %f MB\n", name.c_str(), ggml_n_dims(cur), quantize,
+        LOG_INF("%s: n_dims = %d | quantize=%d | size = %f MB -> %f MB\n", name.c_str(), ggml_n_dims(cur), quantize,
                orig_size / 1024.0 / 1024.0, new_size / 1024.0 / 1024.0);
     }
 
@@ -2583,8 +2587,8 @@ bool clip_model_quantize(const char * fname_inp, const char * fname_out, const i
     gguf_free(ctx_out);
 
     {
-        LOG_TEE("%s: original  size = %8.2f MB\n", __func__, total_size_org / 1024.0 / 1024.0);
+        LOG_INF("%s: original  size = %8.2f MB\n", __func__, total_size_org / 1024.0 / 1024.0);
-        LOG_TEE("%s: quantized size = %8.2f MB\n", __func__, total_size_new / 1024.0 / 1024.0);
+        LOG_INF("%s: quantized size = %8.2f MB\n", __func__, total_size_new / 1024.0 / 1024.0);
     }
 
     return true;

examples/llava/llava-cli.cpp

@@ -10,6 +10,7 @@
 
 #include <cstdio>
 #include <cstdlib>
+#include <cstring>
 #include <vector>
 
 static bool eval_tokens(struct llama_context * ctx_llama, std::vector<llama_token> tokens, int n_batch, int * n_past) {
@@ -20,7 +21,7 @@ static bool eval_tokens(struct llama_context * ctx_llama, std::vector<llama_toke
             n_eval = n_batch;
         }
         if (llama_decode(ctx_llama, llama_batch_get_one(&tokens[i], n_eval, *n_past, 0))) {
-            LOG_TEE("%s : failed to eval. token %d/%d (batch size %d, n_past %d)\n", __func__, i, N, n_batch, *n_past);
+            LOG_ERR("%s : failed to eval. token %d/%d (batch size %d, n_past %d)\n", __func__, i, N, n_batch, *n_past);
             return false;
         }
         *n_past += n_eval;
@@ -75,7 +76,7 @@ static llava_image_embed * llava_image_embed_make_with_prompt_base64(struct clip
     size_t img_base64_str_start, img_base64_str_end;
     find_image_tag_in_prompt(prompt, img_base64_str_start, img_base64_str_end);
     if (img_base64_str_start == std::string::npos || img_base64_str_end == std::string::npos) {
-        LOG_TEE("%s: invalid base64 image tag. must be %s<base64 byte string>%s\n", __func__, IMG_BASE64_TAG_BEGIN, IMG_BASE64_TAG_END);
+        LOG_ERR("%s: invalid base64 image tag. must be %s<base64 byte string>%s\n", __func__, IMG_BASE64_TAG_BEGIN, IMG_BASE64_TAG_END);
         return NULL;
     }
 
@@ -89,7 +90,7 @@ static llava_image_embed * llava_image_embed_make_with_prompt_base64(struct clip
 
     auto embed = llava_image_embed_make_with_bytes(ctx_clip, n_threads, img_bytes.data(), img_bytes.size());
     if (!embed) {
-        LOG_TEE("%s: could not load image from base64 string.\n", __func__);
+        LOG_ERR("%s: could not load image from base64 string.\n", __func__);
         return NULL;
     }
 
@@ -114,9 +115,9 @@ struct llava_context {
 };
 
 static void print_usage(int, char ** argv) {
-    LOG_TEE("\n example usage:\n");
+    LOG("\n example usage:\n");
-    LOG_TEE("\n     %s -m <llava-v1.5-7b/ggml-model-q5_k.gguf> --mmproj <llava-v1.5-7b/mmproj-model-f16.gguf> --image <path/to/an/image.jpg> --image <path/to/another/image.jpg> [--temp 0.1] [-p \"describe the image in detail.\"]\n", argv[0]);
+    LOG("\n     %s -m <llava-v1.5-7b/ggml-model-q5_k.gguf> --mmproj <llava-v1.5-7b/mmproj-model-f16.gguf> --image <path/to/an/image.jpg> --image <path/to/another/image.jpg> [--temp 0.1] [-p \"describe the image in detail.\"]\n", argv[0]);
-    LOG_TEE("\n note: a lower temperature value like 0.1 is recommended for better quality.\n");
+    LOG("\n note: a lower temperature value like 0.1 is recommended for better quality.\n");
 }
 
 static struct llava_image_embed * load_image(llava_context * ctx_llava, gpt_params * params, const std::string & fname) {
@@ -126,11 +127,11 @@ static struct llava_image_embed * load_image(llava_context * ctx_llava, gpt_para
     auto prompt = params->prompt;
     if (prompt_contains_image(prompt)) {
         if (!params->image.empty()) {
-            LOG_TEE("using base64 encoded image instead of command line image path\n");
+            LOG_INF("using base64 encoded image instead of command line image path\n");
         }
         embed = llava_image_embed_make_with_prompt_base64(ctx_llava->ctx_clip, params->cpuparams.n_threads, prompt);
         if (!embed) {
-            LOG_TEE("%s: can't load image from prompt\n", __func__);
+            LOG_ERR("%s: can't load image from prompt\n", __func__);
             return NULL;
         }
         params->prompt = remove_image_from_prompt(prompt);
@@ -156,18 +157,18 @@ static void process_prompt(struct llava_context * ctx_llava, struct llava_image_
         // new templating mode: Provide the full prompt including system message and use <image> as a placeholder for the image
         system_prompt = prompt.substr(0, image_pos);
         user_prompt = prompt.substr(image_pos + std::string("<image>").length());
-        LOG_TEE("system_prompt: %s\n", system_prompt.c_str());
+        LOG_INF("system_prompt: %s\n", system_prompt.c_str());
         if (params->verbose_prompt) {
             auto tmp = ::llama_tokenize(ctx_llava->ctx_llama, system_prompt, true, true);
             for (int i = 0; i < (int) tmp.size(); i++) {
-                LOG_TEE("%6d -> '%s'\n", tmp[i], llama_token_to_piece(ctx_llava->ctx_llama, tmp[i]).c_str());
+                LOG_INF("%6d -> '%s'\n", tmp[i], llama_token_to_piece(ctx_llava->ctx_llama, tmp[i]).c_str());
             }
         }
-        LOG_TEE("user_prompt: %s\n", user_prompt.c_str());
+        LOG_INF("user_prompt: %s\n", user_prompt.c_str());
         if (params->verbose_prompt) {
             auto tmp = ::llama_tokenize(ctx_llava->ctx_llama, user_prompt, true, true);
             for (int i = 0; i < (int) tmp.size(); i++) {
-                LOG_TEE("%6d -> '%s'\n", tmp[i], llama_token_to_piece(ctx_llava->ctx_llama, tmp[i]).c_str());
+                LOG_INF("%6d -> '%s'\n", tmp[i], llama_token_to_piece(ctx_llava->ctx_llama, tmp[i]).c_str());
             }
         }
     } else {
@@ -177,7 +178,7 @@ static void process_prompt(struct llava_context * ctx_llava, struct llava_image_
         if (params->verbose_prompt) {
             auto tmp = ::llama_tokenize(ctx_llava->ctx_llama, user_prompt, true, true);
             for (int i = 0; i < (int) tmp.size(); i++) {
-                LOG_TEE("%6d -> '%s'\n", tmp[i], llama_token_to_piece(ctx_llava->ctx_llama, tmp[i]).c_str());
+                LOG_INF("%6d -> '%s'\n", tmp[i], llama_token_to_piece(ctx_llava->ctx_llama, tmp[i]).c_str());
             }
         }
     }
@@ -188,11 +189,11 @@ static void process_prompt(struct llava_context * ctx_llava, struct llava_image_
 
     // generate the response
 
-    LOG_TEE("\n");
+    LOG("\n");
 
     struct gpt_sampler * smpl = gpt_sampler_init(ctx_llava->model, params->sparams);
     if (!smpl) {
-        fprintf(stderr, "%s: failed to initialize sampling subsystem\n", __func__);
+        LOG_ERR("%s: failed to initialize sampling subsystem\n", __func__);
         exit(1);
     }
 
@@ -202,7 +203,7 @@ static void process_prompt(struct llava_context * ctx_llava, struct llava_image_
         response += tmp;
         if (strcmp(tmp, "</s>") == 0) break;
         if (strstr(tmp, "###")) break; // Yi-VL behavior
-        printf("%s", tmp);
+        LOG("%s", tmp);
         if (strstr(response.c_str(), "<|im_end|>")) break; // Yi-34B llava-1.6 - for some reason those decode not as the correct token (tokenizer works)
         if (strstr(response.c_str(), "<|im_start|>")) break; // Yi-34B llava-1.6
         if (strstr(response.c_str(), "USER:")) break; // mistral llava-1.6
@@ -211,7 +212,7 @@ static void process_prompt(struct llava_context * ctx_llava, struct llava_image_
     }
 
     gpt_sampler_free(smpl);
-    printf("\n");
+    LOG("\n");
 }
 
 static struct llama_model * llava_init(gpt_params * params) {
@@ -222,7 +223,7 @@ static struct llama_model * llava_init(gpt_params * params) {
 
     llama_model * model = llama_load_model_from_file(params->model.c_str(), model_params);
     if (model == NULL) {
-        LOG_TEE("%s: error: unable to load model\n" , __func__);
+        LOG_ERR("%s: unable to load model\n" , __func__);
         return NULL;
     }
     return model;
@@ -245,11 +246,11 @@ static struct llava_context * llava_init_context(gpt_params * params, llama_mode
     llama_context * ctx_llama = llama_new_context_with_model(model, ctx_params);
 
     if (ctx_llama == NULL) {
-        LOG_TEE("%s: error: failed to create the llama_context\n" , __func__);
+        LOG_ERR("%s: failed to create the llama_context\n" , __func__);
         return NULL;
     }
 
-    auto ctx_llava = (struct llava_context *)malloc(sizeof(llava_context));
+    auto * ctx_llava = (struct llava_context *)malloc(sizeof(llava_context));
 
     ctx_llava->ctx_llama = ctx_llama;
     ctx_llava->ctx_clip = ctx_clip;
@@ -268,13 +269,9 @@ static void llava_free(struct llava_context * ctx_llava) {
     llama_backend_free();
 }
 
-static void llama_log_callback_logTee(ggml_log_level level, const char * text, void * user_data) {
-    (void) level;
-    (void) user_data;
-    LOG_TEE("%s", text);
-}
-
 int main(int argc, char ** argv) {
+    gpt_init();
+
     ggml_time_init();
 
     gpt_params params;
@@ -283,27 +280,21 @@ int main(int argc, char ** argv) {
         return 1;
     }
 
-#ifndef LOG_DISABLE_LOGS
-    log_set_target(log_filename_generator("llava", "log"));
-    LOG_TEE("Log start\n");
-    log_dump_cmdline(argc, argv);
-    llama_log_set(llama_log_callback_logTee, nullptr);
-#endif // LOG_DISABLE_LOGS
-
     if (params.mmproj.empty() || (params.image.empty() && !prompt_contains_image(params.prompt))) {
         print_usage(argc, argv);
         return 1;
     }
-    auto model = llava_init(&params);
+
+    auto * model = llava_init(&params);
     if (model == NULL) {
         fprintf(stderr, "%s: error: failed to init llava model\n", __func__);
         return 1;
     }
 
     if (prompt_contains_image(params.prompt)) {
-        auto ctx_llava = llava_init_context(&params, model);
+        auto * ctx_llava = llava_init_context(&params, model);
 
-        auto image_embed = load_image(ctx_llava, &params, "");
+        auto * image_embed = load_image(ctx_llava, &params, "");
 
         // process the prompt
         process_prompt(ctx_llava, image_embed, &params, params.prompt);
@@ -314,11 +305,11 @@ int main(int argc, char ** argv) {
         llava_free(ctx_llava);
     } else {
         for (auto & image : params.image) {
-            auto ctx_llava = llava_init_context(&params, model);
+            auto * ctx_llava = llava_init_context(&params, model);
 
-            auto image_embed = load_image(ctx_llava, &params, image);
+            auto * image_embed = load_image(ctx_llava, &params, image);
             if (!image_embed) {
-                std::cerr << "error: failed to load image " << image << ". Terminating\n\n";
+                LOG_ERR("%s: failed to load image %s. Terminating\n\n", __func__, image.c_str());
                 return 1;
             }
 

examples/llava/llava.cpp

@@ -1,13 +1,23 @@
 #include "clip.h"
-#include "common.h"
-#include "llama.h"
 #include "llava.h"
-#include "base64.hpp"
 
+#include "llama.h"
+
+#include <algorithm>
+#include <cerrno>
 #include <cstdio>
 #include <cstdlib>
+#include <cstring>
+#include <limits>
 #include <vector>
-#include <numeric>
+
+#define die(msg)          do { fputs("error: " msg "\n", stderr);                exit(1); } while (0)
+#define die_fmt(fmt, ...) do { fprintf(stderr, "error: " fmt "\n", __VA_ARGS__); exit(1); } while (0)
+
+#define LOG_INF(...) do { fprintf(stdout, __VA_ARGS__); } while (0)
+#define LOG_WRN(...) do { fprintf(stderr, __VA_ARGS__); } while (0)
+#define LOG_ERR(...) do { fprintf(stderr, __VA_ARGS__); } while (0)
+#define LOG_DBG(...) do { fprintf(stdout, __VA_ARGS__); } while (0)
 
 // RGB uint8 image
 struct clip_image_u8 {
@@ -54,7 +64,7 @@ static std::pair<int, int> select_best_resolution(const std::pair<int, int>& ori
         int downscaled_height = static_cast<int>(original_height * scale);
         int effective_resolution = std::min(downscaled_width * downscaled_height, original_width * original_height);
         int wasted_resolution = (width * height) - effective_resolution;
-        // LOG_TEE("resolution: %d %d, scale: %f, downscaled: %d %d, effective: %d, wasted: %d\n", width, height, scale, downscaled_width, downscaled_height, effective_resolution, wasted_resolution);
+        // LOG_DBG("resolution: %d %d, scale: %f, downscaled: %d %d, effective: %d, wasted: %d\n", width, height, scale, downscaled_width, downscaled_height, effective_resolution, wasted_resolution);
         if (effective_resolution > max_effective_resolution || (effective_resolution == max_effective_resolution && wasted_resolution < min_wasted_resolution)) {
             max_effective_resolution = effective_resolution;
             min_wasted_resolution = wasted_resolution;
@@ -236,7 +246,7 @@ static bool encode_image_with_clip(clip_ctx * ctx_clip, int n_threads, const cli
     img_res_v.size = 0;
     img_res_v.data = nullptr;
     if (!clip_image_preprocess(ctx_clip, img, &img_res_v)) {
-        LOG_TEE("%s: unable to preprocess image\n", __func__);
+        LOG_ERR("%s: unable to preprocess image\n", __func__);
         delete[] img_res_v.data;
         return false;
     }
@@ -265,14 +275,14 @@ static bool encode_image_with_clip(clip_ctx * ctx_clip, int n_threads, const cli
                 encoded = clip_image_encode(ctx_clip, n_threads, &img_res_v.data[i], image_embd_v[i]);
             }
             if (!encoded) {
-                LOG_TEE("Unable to encode image - spatial_unpad - subimage %d of %d\n", (int) i+1, (int) img_res_v.size);
+                LOG_ERR("Unable to encode image - spatial_unpad - subimage %d of %d\n", (int) i+1, (int) img_res_v.size);
                 return false;
             }
             const int64_t t_img_enc_steop_batch_us = ggml_time_us();
-            LOG_TEE("%s: step %d of %d encoded in %8.2f ms\n", __func__, (int)i+1, (int)img_res_v.size, (t_img_enc_steop_batch_us - t_img_enc_step_start_us) / 1000.0);
+            LOG_INF("%s: step %d of %d encoded in %8.2f ms\n", __func__, (int)i+1, (int)img_res_v.size, (t_img_enc_steop_batch_us - t_img_enc_step_start_us) / 1000.0);
         }
         const int64_t t_img_enc_batch_us = ggml_time_us();
-        LOG_TEE("%s: all %d segments encoded in %8.2f ms\n", __func__, (int)img_res_v.size, (t_img_enc_batch_us - t_img_enc_start_us) / 1000.0);
+        LOG_INF("%s: all %d segments encoded in %8.2f ms\n", __func__, (int)img_res_v.size, (t_img_enc_batch_us - t_img_enc_start_us) / 1000.0);
 
         int n_img_pos_out = 0;
         for (size_t i = 0; i < image_embd_v.size(); i++) {
@@ -287,7 +297,7 @@ static bool encode_image_with_clip(clip_ctx * ctx_clip, int n_threads, const cli
         load_image_size->width = img->nx;
         load_image_size->height = img->ny;
         clip_add_load_image_size(ctx_clip, load_image_size);
-        LOG_TEE("%s: load_image_size %d %d\n", __func__, load_image_size->width, load_image_size->height);
+        LOG_INF("%s: load_image_size %d %d\n", __func__, load_image_size->width, load_image_size->height);
     }
     else if (strcmp(mm_patch_merge_type, "spatial_unpad") != 0) {
         // flat / default llava-1.5 type embedding
@@ -295,7 +305,7 @@ static bool encode_image_with_clip(clip_ctx * ctx_clip, int n_threads, const cli
         bool encoded = clip_image_encode(ctx_clip, n_threads, &img_res_v.data[0], image_embd); // image_embd shape is 576 x 4096
         delete[] img_res_v.data;
         if (!encoded) {
-            LOG_TEE("Unable to encode image\n");
+            LOG_ERR("Unable to encode image\n");
 
             return false;
         }
@@ -309,12 +319,12 @@ static bool encode_image_with_clip(clip_ctx * ctx_clip, int n_threads, const cli
             image_embd_v[i] = (float *)malloc(clip_embd_nbytes(ctx_clip)); // 576 patches * 4096 embeddings * 4 bytes = 9437184
             const bool encoded = clip_image_encode(ctx_clip, n_threads, &img_res_v.data[i], image_embd_v[i]); // image data is in 3x336x336 format and will be converted to 336x336x3 inside
             if (!encoded) {
-                LOG_TEE("Unable to encode image - spatial_unpad - subimage %d of %d\n", (int) i+1, (int) img_res_v.size);
+                LOG_ERR("Unable to encode image - spatial_unpad - subimage %d of %d\n", (int) i+1, (int) img_res_v.size);
                 return false;
             }
         }
         const int64_t t_img_enc_batch_us = ggml_time_us();
-        LOG_TEE("%s: %d segments encoded in %8.2f ms\n", __func__, (int)img_res_v.size, (t_img_enc_batch_us - t_img_enc_start_us) / 1000.0);
+        LOG_INF("%s: %d segments encoded in %8.2f ms\n", __func__, (int)img_res_v.size, (t_img_enc_batch_us - t_img_enc_start_us) / 1000.0);
 
         const int32_t * image_grid = clip_image_grid(ctx_clip);
 
@@ -347,12 +357,12 @@ static bool encode_image_with_clip(clip_ctx * ctx_clip, int n_threads, const cli
         // clip_image_save_to_bmp(*tmp, "image_feature.bmp");
     }
 
-    LOG_TEE("%s: image embedding created: %d tokens\n", __func__, *n_img_pos);
+    LOG_INF("%s: image embedding created: %d tokens\n", __func__, *n_img_pos);
 
     const int64_t t_img_enc_end_us = ggml_time_us();
     float t_img_enc_ms = (t_img_enc_end_us - t_img_enc_start_us) / 1000.0;
 
-    LOG_TEE("\n%s: image encoded in %8.2f ms by CLIP (%8.2f ms per image patch)\n", __func__, t_img_enc_ms, t_img_enc_ms / *n_img_pos);
+    LOG_INF("\n%s: image encoded in %8.2f ms by CLIP (%8.2f ms per image patch)\n", __func__, t_img_enc_ms, t_img_enc_ms / *n_img_pos);
 
     return true;
 }
@@ -362,7 +372,7 @@ bool llava_validate_embed_size(const llama_context * ctx_llama, const clip_ctx *
     int n_llama_embd = llama_n_embd(llama_get_model(ctx_llama));
     auto n_image_embd = clip_n_mmproj_embd(ctx_clip);
     if (n_image_embd != n_llama_embd) {
-        LOG_TEE("%s: embedding dim of the multimodal projector (%d) is not equal to that of LLaMA (%d). Make sure that you use the correct mmproj file.\n", __func__, n_image_embd, n_llama_embd);
+        LOG_ERR("%s: embedding dim of the multimodal projector (%d) is not equal to that of LLaMA (%d). Make sure that you use the correct mmproj file.\n", __func__, n_image_embd, n_llama_embd);
         return false;
     }
     return true;
@@ -375,13 +385,13 @@ bool llava_image_embed_make_with_clip_img(clip_ctx * ctx_clip, int n_threads, co
     }
     float * image_embd = (float *)malloc(clip_embd_nbytes(ctx_clip)*num_max_patches); // TODO: base on gridsize/llava model
     if (!image_embd) {
-        LOG_TEE("Unable to allocate memory for image embeddings\n");
+        LOG_ERR("Unable to allocate memory for image embeddings\n");
         return false;
     }
 
     int n_img_pos;
     if (!encode_image_with_clip(ctx_clip, n_threads, img, image_embd, &n_img_pos)) {
-        LOG_TEE("%s: cannot encode image, aborting\n", __func__);
+        LOG_ERR("%s: cannot encode image, aborting\n", __func__);
         free(image_embd);
         return false;
     }
@@ -401,7 +411,7 @@ bool llava_eval_image_embed(llama_context * ctx_llama, const struct llava_image_
         }
         llama_batch batch = {int32_t(n_eval), nullptr, (image_embed->embed+i*n_embd), nullptr, nullptr, nullptr, nullptr, *n_past, 1, 0, };
         if (llama_decode(ctx_llama, batch)) {
-            LOG_TEE("%s : failed to eval\n", __func__);
+            LOG_ERR("%s : failed to eval\n", __func__);
             return false;
         }
         *n_past += n_eval;
@@ -413,7 +423,7 @@ struct llava_image_embed * llava_image_embed_make_with_bytes(struct clip_ctx * c
     clip_image_u8 * img = clip_image_u8_init();
     if (!clip_image_load_from_bytes(image_bytes, image_bytes_length, img)) {
         clip_image_u8_free(img);
-        LOG_TEE("%s: can't load image from bytes, is it a valid image?", __func__);
+        LOG_ERR("%s: can't load image from bytes, is it a valid image?", __func__);
         return NULL;
     }
 
@@ -422,7 +432,7 @@ struct llava_image_embed * llava_image_embed_make_with_bytes(struct clip_ctx * c
     bool image_embed_result = llava_image_embed_make_with_clip_img(ctx_clip, n_threads, img, &image_embed, &n_image_pos);
     if (!image_embed_result) {
         clip_image_u8_free(img);
-        LOG_TEE("%s: coulnd't embed the image\n", __func__);
+        LOG_ERR("%s: coulnd't embed the image\n", __func__);
         return NULL;
     }
 
@@ -436,7 +446,7 @@ struct llava_image_embed * llava_image_embed_make_with_bytes(struct clip_ctx * c
 static bool load_file_to_bytes(const char* path, unsigned char** bytesOut, long *sizeOut) {
     auto file = fopen(path, "rb");
     if (file == NULL) {
-        LOG_TEE("%s: can't read file %s\n", __func__, path);
+        LOG_ERR("%s: can't read file %s\n", __func__, path);
         return false;
     }
 
@@ -446,7 +456,7 @@ static bool load_file_to_bytes(const char* path, unsigned char** bytesOut, long
 
     auto buffer = (unsigned char *)malloc(fileSize); // Allocate memory to hold the file data
     if (buffer == NULL) {
-        LOG_TEE("%s: failed to alloc %ld bytes for file %s\n", __func__, fileSize, path);
+        LOG_ERR("%s: failed to alloc %ld bytes for file %s\n", __func__, fileSize, path);
         perror("Memory allocation error");
         fclose(file);
         return false;
@@ -471,7 +481,7 @@ struct llava_image_embed * llava_image_embed_make_with_filename(struct clip_ctx
     long image_bytes_length;
     auto loaded = load_file_to_bytes(image_path, &image_bytes, &image_bytes_length);
     if (!loaded) {
-        LOG_TEE("%s: failed to load %s\n", __func__, image_path);
+        LOG_ERR("%s: failed to load %s\n", __func__, image_path);
         return NULL;
     }
 

examples/llava/minicpmv-cli.cpp

@@ -7,9 +7,12 @@
 #include "llama.h"
 #include "ggml.h"
 
+#include <algorithm>
 #include <cstdio>
 #include <cstdlib>
+#include <cstring>
 #include <vector>
+#include <iostream> // TODO: remove me
 
 struct llava_context {
     struct clip_ctx * ctx_clip = NULL;
@@ -18,14 +21,8 @@ struct llava_context {
 };
 
 static void show_additional_info(int /*argc*/, char ** argv) {
-    LOG_TEE("\nexample usage:\n\n%s -m <llava-v1.5-7b/ggml-model-q5_k.gguf> --mmproj <llava-v1.5-7b/mmproj-model-f16.gguf> --image <path/to/an/image.jpg> --image <path/to/another/image.jpg> [--temp 0.1] [-p \"describe the image in detail.\"]\n", argv[0]);
+    LOG("\nexample usage:\n\n%s -m <llava-v1.5-7b/ggml-model-q5_k.gguf> --mmproj <llava-v1.5-7b/mmproj-model-f16.gguf> --image <path/to/an/image.jpg> --image <path/to/another/image.jpg> [--temp 0.1] [-p \"describe the image in detail.\"]\n", argv[0]);
-    LOG_TEE("\nnote: a lower temperature value like 0.1 is recommended for better quality.\n");
+    LOG("\nnote: a lower temperature value like 0.1 is recommended for better quality.\n");
-}
-
-static void llama_log_callback_logTee(ggml_log_level level, const char * text, void * user_data) {
-    (void) level;
-    (void) user_data;
-    LOG_TEE("%s", text);
 }
 
 static struct llama_model * llava_init(gpt_params * params) {
@@ -36,7 +33,7 @@ static struct llama_model * llava_init(gpt_params * params) {
 
     llama_model * model = llama_load_model_from_file(params->model.c_str(), model_params);
     if (model == NULL) {
-        LOG_TEE("%s: error: unable to load model\n" , __func__);
+        LOG_ERR("%s: unable to load model\n" , __func__);
         return NULL;
     }
     return model;
@@ -51,7 +48,7 @@ static struct llava_context * llava_init_context(gpt_params * params, llama_mode
     llama_context_params ctx_params = llama_context_params_from_gpt_params(*params);
     if (params->n_ctx < 2048) {
         // warn user here, "Image processing requires at least 2048 context, setting context to 2048"
-        LOG_TEE("%s: warn: Image processing requires at least 2048 context, setting context to 2048\n" , __func__);
+        LOG_WRN("%s: Image processing requires at least 2048 context, setting context to 2048\n" , __func__);
         ctx_params.n_ctx = 2048;
     } else {
         ctx_params.n_ctx = params->n_ctx;
@@ -60,11 +57,11 @@ static struct llava_context * llava_init_context(gpt_params * params, llama_mode
     llama_context * ctx_llama = llama_new_context_with_model(model, ctx_params);
 
     if (ctx_llama == NULL) {
-        LOG_TEE("%s: error: failed to create the llama_context\n" , __func__);
+        LOG_ERR("%s: failed to create the llama_context\n" , __func__);
         return NULL;
     }
 
-    auto ctx_llava = (struct llava_context *)malloc(sizeof(llava_context));
+    auto * ctx_llava = (struct llava_context *)malloc(sizeof(llava_context));
 
     ctx_llava->ctx_llama = ctx_llama;
     ctx_llava->model = model;
@@ -89,7 +86,7 @@ static struct clip_ctx * clip_init_context(gpt_params * params) {
     if (prompt.empty()) {
         prompt = "describe the image in detail.";
     }
-    auto ctx_clip = clip_model_load(clip_path, /*verbosity=*/ 1);
+    auto * ctx_clip = clip_model_load(clip_path, /*verbosity=*/ 1);
     return ctx_clip;
 }
 
@@ -101,7 +98,7 @@ static bool eval_tokens(struct llama_context * ctx_llama, std::vector<llama_toke
             n_eval = n_batch;
         }
         if (llama_decode(ctx_llama, llama_batch_get_one(&tokens[i], n_eval, *n_past, 0))) {
-            LOG_TEE("%s : failed to eval. token %d/%d (batch size %d, n_past %d)\n", __func__, i, N, n_batch, *n_past);
+            LOG_ERR("%s : failed to eval. token %d/%d (batch size %d, n_past %d)\n", __func__, i, N, n_batch, *n_past);
             return false;
         }
         *n_past += n_eval;
@@ -125,7 +122,7 @@ static void process_eval_image_embed(struct llava_context * ctx_llava, const str
     float * image_embed = (float *)malloc(clip_embd_nbytes(ctx_llava->ctx_clip));
     std::memcpy(image_embed, embeds->embed + idx * clip_n_patches(ctx_llava->ctx_clip) * clip_n_mmproj_embd(ctx_llava->ctx_clip), clip_embd_nbytes(ctx_llava->ctx_clip));
 
-    auto slice_embed = (llava_image_embed*)malloc(sizeof(llava_image_embed));
+    auto * slice_embed = (llava_image_embed*)malloc(sizeof(llava_image_embed));
     slice_embed->embed = image_embed;
     slice_embed->n_image_pos = clip_n_patches(ctx_llava->ctx_clip);
     llava_eval_image_embed(ctx_llava->ctx_llama, slice_embed, n_batch, n_past);
@@ -143,7 +140,7 @@ static void process_image(struct llava_context * ctx_llava, struct llava_image_e
     else if (has_minicpmv_projector == 3) {
         system_prompt = "<|im_start|>user\n";
     }
-    LOG_TEE("%s: image token past: %d\n", __func__, n_past);
+    LOG_INF("%s: image token past: %d\n", __func__, n_past);
     eval_string(ctx_llava->ctx_llama, (system_prompt+"<image>").c_str(), params->n_batch, &n_past, false);
     process_eval_image_embed(ctx_llava, embeds, params->n_batch, &n_past, idx++);
     eval_string(ctx_llava->ctx_llama, std::string("</image>").c_str(), params->n_batch, &n_past, false);
@@ -162,7 +159,7 @@ static void process_image(struct llava_context * ctx_llava, struct llava_image_e
         }
         eval_string(ctx_llava->ctx_llama, std::string("</slice>").c_str(), params->n_batch, &n_past, false);
     }
-    LOG_TEE("%s: image token past: %d\n", __func__, n_past);
+    LOG_INF("%s: image token past: %d\n", __func__, n_past);
 }
 
 static const char * sample(struct gpt_sampler * smpl,
@@ -181,42 +178,42 @@ static const char * sample(struct gpt_sampler * smpl,
 }
 
 static struct llava_context * minicpmv_init(gpt_params * params, const std::string & fname, int &n_past){
-    auto ctx_clip = clip_init_context(params);
+    auto * ctx_clip = clip_init_context(params);
-    auto embeds = llava_image_embed_make_with_filename(ctx_clip, params->cpuparams.n_threads, fname.c_str());
+    auto * embeds = llava_image_embed_make_with_filename(ctx_clip, params->cpuparams.n_threads, fname.c_str());
     if (!embeds) {
-        std::cerr << "error: failed to load image " << fname << ". Terminating\n\n";
+        LOG_ERR("failed to load image %s. Terminating\n\n", fname.c_str());
         return NULL;
     }
 
     // process the prompt
     if (params->prompt.empty() && params->interactive == false) {
-        LOG_TEE("prompt should be given or interactive mode should be on");
+        LOG_ERR("prompt should be given or interactive mode should be on");
         return NULL;
     }
 
-    auto model = llava_init(params);
+    auto * model = llava_init(params);
     if (model == NULL) {
         fprintf(stderr, "%s: error: failed to init minicpmv model\n", __func__);
         return NULL;
     }
     const int64_t t_llava_init_start_us = ggml_time_us();
-    auto ctx_llava = llava_init_context(params, model);
+    auto * ctx_llava = llava_init_context(params, model);
     ctx_llava->ctx_clip = ctx_clip;
     const int64_t t_llava_init_end_us = ggml_time_us();
     float t_llava_init_ms = (t_llava_init_end_us - t_llava_init_start_us) / 1000.0;
-    LOG_TEE("\n%s: llava init in %8.2f ms.\n", __func__, t_llava_init_ms);
+    LOG_INF("%s: llava init in %8.2f ms.\n", __func__, t_llava_init_ms);
 
     const int64_t t_process_image_start_us = ggml_time_us();
     process_image(ctx_llava, embeds, params, n_past);
     const int64_t t_process_image_end_us = ggml_time_us();
     float t_process_image_ms = (t_process_image_end_us - t_process_image_start_us) / 1000.0;
-    LOG_TEE("\n%s: llama process image in %8.2f ms.\n", __func__, t_process_image_ms);
+    LOG_INF("%s: llama process image in %8.2f ms.\n", __func__, t_process_image_ms);
 
     llava_image_embed_free(embeds);
     return ctx_llava;
 }
 
-static struct gpt_sampler * llama_init(struct llava_context * ctx_llava, gpt_params * params, std::string prompt, int &n_past, bool is_first = false){
+static struct gpt_sampler * llama_init(struct llava_context * ctx_llava, gpt_params * params, const std::string & prompt, int & n_past, bool is_first = false){
     std::string user_prompt = prompt;
     int has_minicpmv_projector = clip_is_minicpmv(ctx_llava->ctx_clip);
     if (!is_first) {
@@ -238,7 +235,7 @@ static struct gpt_sampler * llama_init(struct llava_context * ctx_llava, gpt_par
 
     // generate the response
 
-    LOG_TEE("\n");
+    LOG_INF("\n");
 
     struct gpt_sampler * smpl = gpt_sampler_init(ctx_llava->model, params->sparams);
     return smpl;
@@ -251,6 +248,8 @@ static const char * llama_loop(struct llava_context * ctx_llava,struct gpt_sampl
 }
 
 int main(int argc, char ** argv) {
+    gpt_init();
+
     ggml_time_init();
 
     gpt_params params;
@@ -259,13 +258,6 @@ int main(int argc, char ** argv) {
         return 1;
     }
 
-#ifndef LOG_DISABLE_LOGS
-    log_set_target(log_filename_generator("llava", "log"));
-    LOG_TEE("Log start\n");
-    log_dump_cmdline(argc, argv);
-    llama_log_set(llama_log_callback_logTee, nullptr);
-#endif // LOG_DISABLE_LOGS
-
     if (params.mmproj.empty() || (params.image.empty())) {
         show_additional_info(argc, argv);
         return 1;
@@ -273,21 +265,23 @@ int main(int argc, char ** argv) {
 
     for (auto & image : params.image) {
         int n_past = 0;
-        auto ctx_llava = minicpmv_init(&params, image, n_past);
+        auto * ctx_llava = minicpmv_init(&params, image, n_past);
 
         if (!params.prompt.empty()) {
-            LOG_TEE("<user>%s\n", params.prompt.c_str());
+            LOG("<user>%s\n", params.prompt.c_str());
-            LOG_TEE("<assistant>");
+            LOG("<assistant>");
-            auto smpl = llama_init(ctx_llava, &params, params.prompt.c_str(), n_past, true);
+            auto * smpl = llama_init(ctx_llava, &params, params.prompt, n_past, true);
             const int max_tgt_len = params.n_predict < 0 ? 256 : params.n_predict;
-            std::string response = "";
+            std::string response;
             bool have_tmp = false;
             for (int i = 0; i < max_tgt_len; i++) {
-                auto tmp = llama_loop(ctx_llava, smpl, n_past);
+                const auto * tmp = llama_loop(ctx_llava, smpl, n_past);
                 response += tmp;
                 if (strcmp(tmp, "</s>") == 0){
-                    if(!have_tmp)continue;
+                    if (!have_tmp) {
-                    else break;
+                        continue;
+                    }
+                    break;
                 }
                 if (strstr(tmp, "###")) break; // Yi-VL behavior
                 have_tmp = true;
@@ -299,15 +293,15 @@ int main(int argc, char ** argv) {
             gpt_sampler_free(smpl);
         }else {
             while (true) {
-                LOG_TEE("<user>");
+                LOG("<user>");
                 std::string prompt;
                 std::getline(std::cin, prompt);
-                LOG_TEE("<assistant>");
+                LOG("<assistant>");
-                auto smpl = llama_init(ctx_llava, &params, prompt, n_past, true);
+                auto * smpl = llama_init(ctx_llava, &params, prompt, n_past, true);
                 const int max_tgt_len = params.n_predict < 0 ? 256 : params.n_predict;
-                std::string response = "";
+                std::string response;
                 for (int i = 0; i < max_tgt_len; i++) {
-                    auto tmp = llama_loop(ctx_llava, smpl, n_past);
+                    const auto * tmp = llama_loop(ctx_llava, smpl, n_past);
                     response += tmp;
                     if (strcmp(tmp, "</s>") == 0) break;
                     if (strstr(tmp, "###")) break; // Yi-VL behavior

examples/lookahead/lookahead.cpp

@@ -1,6 +1,7 @@
 #include "arg.h"
 #include "common.h"
 #include "sampling.h"
+#include "log.h"
 #include "llama.h"
 
 #include <cstdio>
@@ -36,6 +37,8 @@ struct ngram_container {
 };
 
 int main(int argc, char ** argv) {
+    gpt_init();
+
     gpt_params params;
 
     if (!gpt_params_parse(argc, argv, params, LLAMA_EXAMPLE_COMMON)) {
@@ -48,12 +51,6 @@ int main(int argc, char ** argv) {
 
     const bool dump_kv_cache = params.dump_kv_cache;
 
-#ifndef LOG_DISABLE_LOGS
-    log_set_target(log_filename_generator("lookahead", "log"));
-    LOG_TEE("Log start\n");
-    log_dump_cmdline(argc, argv);
-#endif // LOG_DISABLE_LOGS
-
     // init llama.cpp
     llama_backend_init();
     llama_numa_init(params.numa);
@@ -75,14 +72,14 @@ int main(int argc, char ** argv) {
     const int max_tokens_list_size = max_context_size - 4;
 
     if ((int) inp.size() > max_tokens_list_size) {
-        fprintf(stderr, "%s: error: prompt too long (%d tokens, max %d)\n", __func__, (int) inp.size(), max_tokens_list_size);
+        LOG_ERR("%s: prompt too long (%d tokens, max %d)\n", __func__, (int) inp.size(), max_tokens_list_size);
         return 1;
     }
 
-    fprintf(stderr, "\n\n");
+    LOG("\n\n");
 
     for (auto id : inp) {
-        fprintf(stderr, "%s", llama_token_to_piece(ctx, id).c_str());
+        LOG("%s", llama_token_to_piece(ctx, id).c_str());
     }
 
     fflush(stderr);
@@ -166,7 +163,7 @@ int main(int argc, char ** argv) {
         {
             const std::string token_str = llama_token_to_piece(ctx, id);
 
-            printf("%s", token_str.c_str());
+            LOG("%s", token_str.c_str());
             fflush(stdout);
         }
     }
@@ -256,7 +253,7 @@ int main(int argc, char ** argv) {
         }
 
         if (llama_decode(ctx, batch) != 0) {
-            fprintf(stderr, "\n\n%s: error: llama_decode failed - increase KV cache size\n", __func__);
+            LOG_ERR("\n\n%s: llama_decode failed - increase KV cache size\n", __func__);
             return 1;
         }
 
@@ -293,10 +290,10 @@ int main(int argc, char ** argv) {
                 const std::string token_str = llama_token_to_piece(ctx, id);
 
                 if (v == 0) {
-                    printf("%s", token_str.c_str());
+                    LOG("%s", token_str.c_str());
                 } else {
                     // print light cyan
-                    printf("\033[0;96m%s\033[0m", token_str.c_str());
+                    LOG("\033[0;96m%s\033[0m", token_str.c_str());
                 }
                 fflush(stdout);
 
@@ -330,21 +327,21 @@ int main(int argc, char ** argv) {
             // print known n-grams starting with token id (debug)
             if (0 && v == 0) {
                 if (ngrams_observed.cnt[id] > 0) {
-                    printf("\n - %d n-grams starting with '%s'\n", ngrams_observed.cnt[id], llama_token_to_piece(ctx, id).c_str());
+                    LOG("\n - %d n-grams starting with '%s'\n", ngrams_observed.cnt[id], llama_token_to_piece(ctx, id).c_str());
                 }
 
                 for (int i = 0; i < ngrams_observed.cnt[id]; i++) {
-                    printf("   - ngram %2d: ", i);
+                    LOG("   - ngram %2d: ", i);
 
                     const int idx = id*(N - 1)*G + i*(N - 1);
 
                     for (int j = 0; j < N - 1; j++) {
                         const std::string token_str = llama_token_to_piece(ctx, ngrams_observed.tokens[idx + j]);
 
-                        printf("%s", token_str.c_str());
+                        LOG("%s", token_str.c_str());
                     }
 
-                    printf("\n");
+                    LOG("\n");
                 }
             }
 
@@ -455,20 +452,20 @@ int main(int argc, char ** argv) {
 
     auto t_dec_end = ggml_time_us();
 
-    LOG_TEE("\n\n");
+    LOG("\n\n");
 
-    LOG_TEE("encoded %4d tokens in %8.3f seconds, speed: %8.3f t/s\n", n_input,   (t_enc_end - t_enc_start) / 1e6f, inp.size() / ((t_enc_end - t_enc_start) / 1e6f));
+    LOG_INF("encoded %4d tokens in %8.3f seconds, speed: %8.3f t/s\n", n_input,   (t_enc_end - t_enc_start) / 1e6f, inp.size() / ((t_enc_end - t_enc_start) / 1e6f));
-    LOG_TEE("decoded %4d tokens in %8.3f seconds, speed: %8.3f t/s\n", n_predict, (t_dec_end - t_dec_start) / 1e6f, n_predict  / ((t_dec_end - t_dec_start) / 1e6f));
+    LOG_INF("decoded %4d tokens in %8.3f seconds, speed: %8.3f t/s\n", n_predict, (t_dec_end - t_dec_start) / 1e6f, n_predict  / ((t_dec_end - t_dec_start) / 1e6f));
 
-    LOG_TEE("\n");
+    LOG_INF("\n");
-    LOG_TEE("W = %2d\n", W);
+    LOG_INF("W = %2d\n", W);
-    LOG_TEE("N = %2d\n", N);
+    LOG_INF("N = %2d\n", N);
-    LOG_TEE("G = %2d\n", G);
+    LOG_INF("G = %2d\n", G);
-    LOG_TEE("\n");
+    LOG_INF("\n");
-    LOG_TEE("n_predict = %d\n", n_predict);
+    LOG_INF("n_predict = %d\n", n_predict);
-    LOG_TEE("n_accept  = %d\n", n_accept);
+    LOG_INF("n_accept  = %d\n", n_accept);
 
-    LOG_TEE("\n");
+    LOG_INF("\n");
     gpt_perf_print(ctx, smpl);
 
     gpt_sampler_free(smpl);
@@ -482,7 +479,7 @@ int main(int argc, char ** argv) {
 
     llama_backend_free();
 
-    fprintf(stderr, "\n\n");
+    LOG("\n\n");
 
     return 0;
 }

examples/lookup/lookup-stats.cpp

@@ -5,15 +5,16 @@
 #include "llama.h"
 #include "ggml.h"
 
-#include <cmath>
 #include <cstdint>
 #include <cstdio>
+#include <cinttypes>
 #include <fstream>
 #include <string>
 #include <vector>
-#include <unordered_map>
 
 int main(int argc, char ** argv){
+    gpt_init();
+
     gpt_params params;
 
     if (!gpt_params_parse(argc, argv, params, LLAMA_EXAMPLE_LOOKUP)) {
@@ -49,7 +50,7 @@ int main(int argc, char ** argv){
             try {
                 ngram_cache_static = llama_ngram_cache_load(params.lookup_cache_static);
             } catch (std::ifstream::failure const &) {
-                fprintf(stderr, "error: failed to open static lookup cache: %s", params.lookup_cache_static.c_str());
+                LOG_ERR("failed to open static lookup cache: %s", params.lookup_cache_static.c_str());
                 exit(1);
             }
         }
@@ -128,7 +129,7 @@ int main(int argc, char ** argv){
             const int64_t eta_min  = eta_ms / (60*1000);
             const int64_t eta_s    = (eta_ms - 60*1000*eta_min) / 1000;
 
-            LOG_TEE("lookup-stats: %d/%d done, ETA: %02" PRId64 ":%02" PRId64 "\n", i_start, n_input, eta_min, eta_s);
+            LOG_INF("lookup-stats: %d/%d done, ETA: %02" PRId64 ":%02" PRId64 "\n", i_start, n_input, eta_min, eta_s);
         }
 
         // After each chunk, update the dynamic ngram cache with the context ngram cache:
@@ -136,24 +137,24 @@ int main(int argc, char ** argv){
         ngram_cache_context.clear();
     }
 
-    LOG_TEE("\n");
+    LOG("\n");
 
-    LOG_TEE("\n");
+    LOG_INF("\n");
-    LOG_TEE("n_draft      = %d\n", n_draft);
+    LOG_INF("n_draft      = %d\n", n_draft);
-    LOG_TEE("n_predict    = %d\n", n_input - n_input % n_ctx);
+    LOG_INF("n_predict    = %d\n", n_input - n_input % n_ctx);
-    LOG_TEE("n_drafted    = %d\n", n_drafted);
+    LOG_INF("n_drafted    = %d\n", n_drafted);
-    LOG_TEE("t_draft_flat = %.2f ms\n", t_draft_flat_us*1e-3);
+    LOG_INF("t_draft_flat = %.2f ms\n", t_draft_flat_us*1e-3);
-    LOG_TEE("t_draft      = %.2f ms, %.2f us per token, %.2f tokens per second\n",
+    LOG_INF("t_draft      = %.2f ms, %.2f us per token, %.2f tokens per second\n",
             t_draft_us*1e-3, 1.0f*t_draft_us/n_drafted, n_drafted/(1e-6*t_draft_us));
-    LOG_TEE("n_accept     = %d\n", n_accept);
+    LOG_INF("n_accept     = %d\n", n_accept);
-    LOG_TEE("accept       = %.3f%%\n", 100.0f * n_accept / n_drafted);
+    LOG_INF("accept       = %.3f%%\n", 100.0f * n_accept / n_drafted);
 
     llama_free(ctx);
     llama_free_model(model);
 
     llama_backend_free();
 
-    fprintf(stderr, "\n\n");
+    LOG("\n\n");
 
     return 0;
 }

examples/lookup/lookup.cpp

@@ -3,6 +3,7 @@
 #include "common.h"
 #include "ngram-cache.h"
 #include "sampling.h"
+#include "log.h"
 #include "llama.h"
 
 #include <cstdint>
@@ -12,6 +13,8 @@
 #include <vector>
 
 int main(int argc, char ** argv){
+    gpt_init();
+
     gpt_params params;
 
     if (!gpt_params_parse(argc, argv, params, LLAMA_EXAMPLE_LOOKUP)) {
@@ -23,12 +26,6 @@ int main(int argc, char ** argv){
 
     const bool dump_kv_cache = params.dump_kv_cache;
 
-#ifndef LOG_DISABLE_LOGS
-    log_set_target(log_filename_generator("lookup", "log"));
-    LOG_TEE("Log start\n");
-    log_dump_cmdline(argc, argv);
-#endif // LOG_DISABLE_LOGS
-
     // init llama.cpp
     llama_backend_init();
     llama_numa_init(params.numa);
@@ -58,7 +55,7 @@ int main(int argc, char ** argv){
             try {
                 ngram_cache_static = llama_ngram_cache_load(params.lookup_cache_static);
             } catch (std::ifstream::failure const &) {
-                fprintf(stderr, "error: failed to open static lookup cache: %s", params.lookup_cache_static.c_str());
+                LOG_ERR("failed to open static lookup cache: %s", params.lookup_cache_static.c_str());
                 exit(1);
             }
         }
@@ -76,14 +73,14 @@ int main(int argc, char ** argv){
     const int max_tokens_list_size = max_context_size - 4;
 
     if ((int) inp.size() > max_tokens_list_size) {
-        fprintf(stderr, "%s: error: prompt too long (%d tokens, max %d)\n", __func__, (int) inp.size(), max_tokens_list_size);
+        LOG_ERR("%s: prompt too long (%d tokens, max %d)\n", __func__, (int) inp.size(), max_tokens_list_size);
         return 1;
     }
 
-    fprintf(stderr, "\n\n");
+    LOG("\n\n");
 
     for (auto id : inp) {
-        fprintf(stderr, "%s", llama_token_to_piece(ctx, id).c_str());
+        LOG("%s", llama_token_to_piece(ctx, id).c_str());
     }
 
     fflush(stderr);
@@ -124,7 +121,7 @@ int main(int argc, char ** argv){
         }
 
         // print current draft sequence
-        LOG("drafted %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx, draft).c_str());
+        LOG_DBG("drafted %s\n", string_from(ctx, draft).c_str());
 
         int i_dft = 0;
         while (true) {
@@ -136,7 +133,7 @@ int main(int argc, char ** argv){
             const std::string token_str = llama_token_to_piece(ctx, id);
 
             if (!params.use_color) {
-                printf("%s", token_str.c_str());
+                LOG("%s", token_str.c_str());
             }
 
             if (llama_token_is_eog(model, id)) {
@@ -147,7 +144,7 @@ int main(int argc, char ** argv){
 
             // check if the target token matches the draft
             if (i_dft < (int) draft.size() && id == draft[i_dft]) {
-                LOG("the sampled target token matches the %dth drafted token (%d, '%s') - accepted\n", i_dft, id, token_str.c_str());
+                LOG_DBG("the sampled target token matches the %dth drafted token (%d, '%s') - accepted\n", i_dft, id, token_str.c_str());
                 ++n_accept;
                 ++n_past;
                 ++i_dft;
@@ -161,19 +158,19 @@ int main(int argc, char ** argv){
 
                 if (params.use_color) {
                     // color accepted draft token
-                    printf("\033[34m%s\033[0m", token_str.c_str());
+                    LOG("\033[34m%s\033[0m", token_str.c_str());
                     fflush(stdout);
                 }
                 continue;
             }
 
             if (params.use_color) {
-                printf("%s", token_str.c_str());
+                LOG("%s", token_str.c_str());
             }
             fflush(stdout);
 
 
-            LOG("the sampled target token (%d, '%s') did not match, or we ran out of drafted tokens\n", id, token_str.c_str());
+            LOG_DBG("the sampled target token (%d, '%s') did not match, or we ran out of drafted tokens\n", id, token_str.c_str());
 
             draft.clear();
             draft.push_back(id);
@@ -224,22 +221,22 @@ int main(int argc, char ** argv){
     llama_ngram_cache_merge(ngram_cache_dynamic, ngram_cache_context);
     llama_ngram_cache_save(ngram_cache_dynamic, params.lookup_cache_dynamic);
 
-    LOG_TEE("\n\n");
+    LOG("\n\n");
 
-    LOG_TEE("encoded %4d tokens in %8.3f seconds, speed: %8.3f t/s\n", n_input,   (t_enc_end - t_enc_start) / 1e6f, inp.size() / ((t_enc_end - t_enc_start) / 1e6f));
+    LOG_INF("encoded %4d tokens in %8.3f seconds, speed: %8.3f t/s\n", n_input,   (t_enc_end - t_enc_start) / 1e6f, inp.size() / ((t_enc_end - t_enc_start) / 1e6f));
-    LOG_TEE("decoded %4d tokens in %8.3f seconds, speed: %8.3f t/s\n", n_predict, (t_dec_end - t_dec_start) / 1e6f, n_predict  / ((t_dec_end - t_dec_start) / 1e6f));
+    LOG_INF("decoded %4d tokens in %8.3f seconds, speed: %8.3f t/s\n", n_predict, (t_dec_end - t_dec_start) / 1e6f, n_predict  / ((t_dec_end - t_dec_start) / 1e6f));
 
-    LOG_TEE("\n");
+    LOG_INF("\n");
-    LOG_TEE("n_draft      = %d\n", n_draft);
+    LOG_INF("n_draft      = %d\n", n_draft);
-    LOG_TEE("n_predict    = %d\n", n_predict);
+    LOG_INF("n_predict    = %d\n", n_predict);
-    LOG_TEE("n_drafted    = %d\n", n_drafted);
+    LOG_INF("n_drafted    = %d\n", n_drafted);
-    LOG_TEE("t_draft_flat = %.2f ms\n", t_draft_flat_us*1e-3);
+    LOG_INF("t_draft_flat = %.2f ms\n", t_draft_flat_us*1e-3);
-    LOG_TEE("t_draft      = %.2f ms, %.2f us per token, %.2f tokens per second\n",
+    LOG_INF("t_draft      = %.2f ms, %.2f us per token, %.2f tokens per second\n",
             t_draft_us*1e-3, 1.0f*t_draft_us/n_drafted, n_drafted/(1e-6*t_draft_us));
-    LOG_TEE("n_accept     = %d\n", n_accept);
+    LOG_INF("n_accept     = %d\n", n_accept);
-    LOG_TEE("accept       = %.3f%%\n", 100.0f * n_accept / n_drafted);
+    LOG_INF("accept       = %.3f%%\n", 100.0f * n_accept / n_drafted);
 
-    LOG_TEE("\ntarget:\n\n");
+    LOG_INF("\ntarget:\n\n");
     gpt_perf_print(ctx, smpl);
 
     gpt_sampler_free(smpl);
@@ -251,7 +248,7 @@ int main(int argc, char ** argv){
 
     llama_backend_free();
 
-    fprintf(stderr, "\n\n");
+    LOG("\n\n");
 
     return 0;
 }

examples/main/main.cpp

@@ -1,12 +1,11 @@
 #include "arg.h"
 #include "common.h"
 #include "console.h"
+#include "log.h"
 #include "sampling.h"
 #include "llama.h"
 
 #include <cassert>
-#include <cinttypes>
-#include <cmath>
 #include <cstdio>
 #include <cstring>
 #include <ctime>
@@ -42,11 +41,13 @@ static std::vector<llama_token> * g_output_tokens;
 static bool is_interacting  = false;
 static bool need_insert_eot = false;
 
-static void print_usage(int, char ** argv) {
+static void print_usage(int argc, char ** argv) {
-    printf("\nexample usage:\n");
+    (void) argc;
-    printf("\n  text generation:     %s -m your_model.gguf -p \"I believe the meaning of life is\" -n 128\n", argv[0]);
+
-    printf("\n  chat (conversation): %s -m your_model.gguf -p \"You are a helpful assistant\" -cnv\n", argv[0]);
+    LOG("\nexample usage:\n");
-    printf("\n");
+    LOG("\n  text generation:     %s -m your_model.gguf -p \"I believe the meaning of life is\" -n 128\n", argv[0]);
+    LOG("\n  chat (conversation): %s -m your_model.gguf -p \"You are a helpful assistant\" -cnv\n", argv[0]);
+    LOG("\n");
 }
 
 static bool file_exists(const std::string & path) {
@@ -74,8 +75,7 @@ static void write_logfile(
 
     const bool success = fs_create_directory_with_parents(params.logdir);
     if (!success) {
-        fprintf(stderr, "%s: warning: failed to create logdir %s, cannot write logfile\n",
+        LOG_ERR("%s: failed to create logdir %s, cannot write logfile\n", __func__, params.logdir.c_str());
-                __func__, params.logdir.c_str());
         return;
     }
 
@@ -83,7 +83,7 @@ static void write_logfile(
     FILE * logfile = fopen(logfile_path.c_str(), "w");
 
     if (logfile == NULL) {
-        fprintf(stderr, "%s: failed to open logfile %s\n", __func__, logfile_path.c_str());
+        LOG_ERR("%s: failed to open logfile %s\n", __func__, logfile_path.c_str());
         return;
     }
 
@@ -113,7 +113,7 @@ static void sigint_handler(int signo) {
             need_insert_eot = true;
         } else {
             console::cleanup();
-            printf("\n");
+            LOG("\n");
             gpt_perf_print(*g_ctx, *g_smpl);
             write_logfile(*g_ctx, *g_params, *g_model, *g_input_tokens, g_output_ss->str(), *g_output_tokens);
             _exit(130);
@@ -122,21 +122,17 @@ static void sigint_handler(int signo) {
 }
 #endif
 
-static void llama_log_callback_logTee(ggml_log_level level, const char * text, void * user_data) {
+static std::string chat_add_and_format(struct llama_model * model, std::vector<llama_chat_msg> & chat_msgs, const std::string & role, const std::string & content) {
-    (void) level;
-    (void) user_data;
-    LOG_TEE("%s", text);
-}
-
-static std::string chat_add_and_format(struct llama_model * model, std::vector<llama_chat_msg> & chat_msgs, std::string role, std::string content) {
     llama_chat_msg new_msg{role, content};
     auto formatted = llama_chat_format_single(model, g_params->chat_template, chat_msgs, new_msg, role == "user");
     chat_msgs.push_back({role, content});
-    LOG("formatted: %s\n", formatted.c_str());
+    LOG_DBG("formatted: '%s'\n", formatted.c_str());
     return formatted;
 }
 
 int main(int argc, char ** argv) {
+    gpt_init();
+
     gpt_params params;
     g_params = &params;
     if (!gpt_params_parse(argc, argv, params, LLAMA_EXAMPLE_MAIN, print_usage)) {
@@ -145,53 +141,42 @@ int main(int argc, char ** argv) {
 
     auto & sparams = params.sparams;
 
-#ifndef LOG_DISABLE_LOGS
-    log_set_target(log_filename_generator("main", "log"));
-    LOG_TEE("Log start\n");
-    log_dump_cmdline(argc, argv);
-    llama_log_set(llama_log_callback_logTee, nullptr);
-#endif // LOG_DISABLE_LOGS
-
-    // TODO: Dump params ?
-    //LOG("Params perplexity: %s\n", LOG_TOSTR(params.perplexity));
-
     // save choice to use color for later
     // (note for later: this is a slightly awkward choice)
     console::init(params.simple_io, params.use_color);
     atexit([]() { console::cleanup(); });
 
     if (params.logits_all) {
-        printf("\n************\n");
+        LOG_ERR("************\n");
-        printf("%s: please use the 'perplexity' tool for perplexity calculations\n", __func__);
+        LOG_ERR("%s: please use the 'perplexity' tool for perplexity calculations\n", __func__);
-        printf("************\n\n");
+        LOG_ERR("************\n\n");
 
         return 0;
     }
 
     if (params.embedding) {
-        printf("\n************\n");
+        LOG_ERR("************\n");
-        printf("%s: please use the 'embedding' tool for embedding calculations\n", __func__);
+        LOG_ERR("%s: please use the 'embedding' tool for embedding calculations\n", __func__);
-        printf("************\n\n");
+        LOG_ERR("************\n\n");
 
         return 0;
     }
 
     if (params.n_ctx != 0 && params.n_ctx < 8) {
-        LOG_TEE("%s: warning: minimum context size is 8, using minimum size.\n", __func__);
+        LOG_WRN("%s: warning: minimum context size is 8, using minimum size.\n", __func__);
         params.n_ctx = 8;
     }
 
     if (params.rope_freq_base != 0.0) {
-        LOG_TEE("%s: warning: changing RoPE frequency base to %g.\n", __func__, params.rope_freq_base);
+        LOG_WRN("%s: warning: changing RoPE frequency base to %g.\n", __func__, params.rope_freq_base);
     }
 
     if (params.rope_freq_scale != 0.0) {
-        LOG_TEE("%s: warning: scaling RoPE frequency by %g.\n", __func__, params.rope_freq_scale);
+        LOG_WRN("%s: warning: scaling RoPE frequency by %g.\n", __func__, params.rope_freq_scale);
     }
 
-    print_build_info();
+    LOG_INF("%s: llama backend init\n", __func__);
 
-    LOG("%s: llama backend init\n", __func__);
     llama_backend_init();
     llama_numa_init(params.numa);
 
@@ -206,21 +191,19 @@ int main(int argc, char ** argv) {
     g_smpl = &smpl;
 
     // load the model and apply lora adapter, if any
-    LOG("%s: load the model and apply lora adapter, if any\n", __func__);
+    LOG_INF("%s: load the model and apply lora adapter, if any\n", __func__);
     llama_init_result llama_init = llama_init_from_gpt_params(params);
 
     model = llama_init.model;
     ctx = llama_init.context;
 
     if (model == NULL) {
-        LOG_TEE("%s: error: unable to load model\n", __func__);
+        LOG_ERR("%s: error: unable to load model\n", __func__);
         return 1;
     }
 
-    LOG("%s: llama threadpool init = n_threads = %d\n",
+    LOG_INF("%s: llama threadpool init, n_threads = %d\n", __func__, (int) params.cpuparams.n_threads);
-        __func__,
+
-        (int) params.cpuparams.n_threads
-    );
     struct ggml_threadpool_params tpp_batch =
             ggml_threadpool_params_from_cpu_params(params.cpuparams_batch);
     struct ggml_threadpool_params tpp =
@@ -232,8 +215,8 @@ int main(int argc, char ** argv) {
     if (!ggml_threadpool_params_match(&tpp, &tpp_batch)) {
         threadpool_batch = ggml_threadpool_new(&tpp_batch);
         if (!threadpool_batch) {
-            LOG_TEE("%s: batch threadpool create failed : n_threads %d\n", __func__, tpp_batch.n_threads);
+            LOG_ERR("%s: batch threadpool create failed : n_threads %d\n", __func__, tpp_batch.n_threads);
-            exit(1);
+            return 1;
         }
 
         // Start the non-batch threadpool in the paused state
@@ -242,55 +225,54 @@ int main(int argc, char ** argv) {
 
     struct ggml_threadpool * threadpool = ggml_threadpool_new(&tpp);
     if (!threadpool) {
-        LOG_TEE("%s: threadpool create failed : n_threads %d\n", __func__, tpp.n_threads);
+        LOG_ERR("%s: threadpool create failed : n_threads %d\n", __func__, tpp.n_threads);
-        exit(1);
+        return 1;
     }
 
     llama_attach_threadpool(ctx, threadpool, threadpool_batch);
 
     const int n_ctx_train = llama_n_ctx_train(model);
     const int n_ctx = llama_n_ctx(ctx);
-    LOG("n_ctx: %d\n", n_ctx);
 
     if (n_ctx > n_ctx_train) {
-        LOG_TEE("%s: warning: model was trained on only %d context tokens (%d specified)\n",
+        LOG_WRN("%s: model was trained on only %d context tokens (%d specified)\n", __func__, n_ctx_train, n_ctx);
-                __func__, n_ctx_train, n_ctx);
     }
 
     // print chat template example in conversation mode
     if (params.conversation) {
         if (params.enable_chat_template) {
-            LOG_TEE("%s: chat template example: %s\n", __func__, llama_chat_format_example(model, params.chat_template).c_str());
+            LOG_INF("%s: chat template example:\n%s\n", __func__, llama_chat_format_example(model, params.chat_template).c_str());
         } else {
-            LOG_TEE("%s: in-suffix/prefix is specified, chat template will be disabled\n", __func__);
+            LOG_INF("%s: in-suffix/prefix is specified, chat template will be disabled\n", __func__);
         }
     }
 
     // print system information
     {
-        LOG_TEE("\n");
+        LOG_INF("\n");
-        LOG_TEE("%s\n", gpt_params_get_system_info(params).c_str());
+        LOG_INF("%s\n", gpt_params_get_system_info(params).c_str());
+        LOG_INF("\n");
     }
 
     std::string path_session = params.path_prompt_cache;
     std::vector<llama_token> session_tokens;
 
     if (!path_session.empty()) {
-        LOG_TEE("%s: attempting to load saved session from '%s'\n", __func__, path_session.c_str());
+        LOG_INF("%s: attempting to load saved session from '%s'\n", __func__, path_session.c_str());
         if (!file_exists(path_session)) {
-            LOG_TEE("%s: session file does not exist, will create.\n", __func__);
+            LOG_INF("%s: session file does not exist, will create.\n", __func__);
         } else if (file_is_empty(path_session)) {
-            LOG_TEE("%s: The session file is empty. A new session will be initialized.\n", __func__);
+            LOG_INF("%s: The session file is empty. A new session will be initialized.\n", __func__);
         } else {
             // The file exists and is not empty
             session_tokens.resize(n_ctx);
             size_t n_token_count_out = 0;
             if (!llama_state_load_file(ctx, path_session.c_str(), session_tokens.data(), session_tokens.capacity(), &n_token_count_out)) {
-                LOG_TEE("%s: error: failed to load session file '%s'\n", __func__, path_session.c_str());
+                LOG_ERR("%s: failed to load session file '%s'\n", __func__, path_session.c_str());
                 return 1;
             }
             session_tokens.resize(n_token_count_out);
-            LOG_TEE("%s: loaded a session with prompt size of %d tokens\n", __func__, (int)session_tokens.size());
+            LOG_INF("%s: loaded a session with prompt size of %d tokens\n", __func__, (int)session_tokens.size());
         }
     }
 
@@ -298,7 +280,8 @@ int main(int argc, char ** argv) {
     if (!llama_model_has_encoder(model)) {
         GGML_ASSERT(!llama_add_eos_token(model));
     }
-    LOG("add_bos: %d\n", add_bos);
+
+    LOG_DBG("n_ctx: %d, add_bos: %d\n", n_ctx, add_bos);
 
     std::vector<llama_token> embd_inp;
 
@@ -307,31 +290,31 @@ int main(int argc, char ** argv) {
             ? chat_add_and_format(model, chat_msgs, "system", params.prompt) // format the system prompt in conversation mode
             : params.prompt;
         if (params.interactive_first || !params.prompt.empty() || session_tokens.empty()) {
-            LOG("tokenize the prompt\n");
+            LOG_DBG("tokenize the prompt\n");
             embd_inp = ::llama_tokenize(ctx, prompt, true, true);
         } else {
-            LOG("use session tokens\n");
+            LOG_DBG("use session tokens\n");
             embd_inp = session_tokens;
         }
 
-        LOG("prompt: \"%s\"\n", log_tostr(prompt));
+        LOG_DBG("prompt: \"%s\"\n", prompt.c_str());
-        LOG("tokens: %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx, embd_inp).c_str());
+        LOG_DBG("tokens: %s\n", string_from(ctx, embd_inp).c_str());
     }
 
     // Should not run without any tokens
     if (embd_inp.empty()) {
         if (add_bos) {
             embd_inp.push_back(llama_token_bos(model));
-            LOG("embd_inp was considered empty and bos was added: %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx, embd_inp).c_str());
+            LOG_WRN("embd_inp was considered empty and bos was added: %s\n", string_from(ctx, embd_inp).c_str());
         } else {
-            LOG_TEE("error: input is empty\n");
+            LOG_ERR("input is empty\n");
             return -1;
         }
     }
 
     // Tokenize negative prompt
     if ((int) embd_inp.size() > n_ctx - 4) {
-        LOG_TEE("%s: error: prompt is too long (%d tokens, max %d)\n", __func__, (int) embd_inp.size(), n_ctx - 4);
+        LOG_ERR("%s: prompt is too long (%d tokens, max %d)\n", __func__, (int) embd_inp.size(), n_ctx - 4);
         return 1;
     }
 
@@ -345,29 +328,28 @@ int main(int argc, char ** argv) {
             n_matching_session_tokens++;
         }
         if (params.prompt.empty() && n_matching_session_tokens == embd_inp.size()) {
-            LOG_TEE("%s: using full prompt from session file\n", __func__);
+            LOG_INF("%s: using full prompt from session file\n", __func__);
         } else if (n_matching_session_tokens >= embd_inp.size()) {
-            LOG_TEE("%s: session file has exact match for prompt!\n", __func__);
+            LOG_INF("%s: session file has exact match for prompt!\n", __func__);
         } else if (n_matching_session_tokens < (embd_inp.size() / 2)) {
-            LOG_TEE("%s: warning: session file has low similarity to prompt (%zu / %zu tokens); will mostly be reevaluated\n",
+            LOG_WRN("%s: session file has low similarity to prompt (%zu / %zu tokens); will mostly be reevaluated\n",
-                __func__, n_matching_session_tokens, embd_inp.size());
+                    __func__, n_matching_session_tokens, embd_inp.size());
         } else {
-            LOG_TEE("%s: session file matches %zu / %zu tokens of prompt\n",
+            LOG_INF("%s: session file matches %zu / %zu tokens of prompt\n",
-                __func__, n_matching_session_tokens, embd_inp.size());
+                    __func__, n_matching_session_tokens, embd_inp.size());
         }
 
         // remove any "future" tokens that we might have inherited from the previous session
         llama_kv_cache_seq_rm(ctx, -1, n_matching_session_tokens, -1);
     }
 
-    LOGLN(
+    LOG_DBG("recalculate the cached logits (check): embd_inp.size() %zu, n_matching_session_tokens %zu, embd_inp.size() %zu, session_tokens.size() %zu\n",
-            "recalculate the cached logits (check): embd_inp.empty() %s, n_matching_session_tokens %zu, embd_inp.size() %zu, session_tokens.size() %zu",
+         embd_inp.size(), n_matching_session_tokens, embd_inp.size(), session_tokens.size());
-            log_tostr(embd_inp.empty()), n_matching_session_tokens, embd_inp.size(), session_tokens.size());
 
     // if we will use the cache for the full prompt without reaching the end of the cache, force
     // reevaluation of the last token to recalculate the cached logits
     if (!embd_inp.empty() && n_matching_session_tokens == embd_inp.size() && session_tokens.size() > embd_inp.size()) {
-        LOGLN("recalculate the cached logits (do): session_tokens.resize( %zu )", embd_inp.size() - 1);
+        LOG_DBG("recalculate the cached logits (do): session_tokens.resize( %zu )\n", embd_inp.size() - 1);
 
         session_tokens.resize(embd_inp.size() - 1);
     }
@@ -389,21 +371,20 @@ int main(int argc, char ** argv) {
     }
 
     if (params.verbose_prompt) {
-        LOG_TEE("\n");
+        LOG_INF("%s: prompt: '%s'\n", __func__, params.prompt.c_str());
-        LOG_TEE("%s: prompt: '%s'\n", __func__, params.prompt.c_str());
+        LOG_INF("%s: number of tokens in prompt = %zu\n", __func__, embd_inp.size());
-        LOG_TEE("%s: number of tokens in prompt = %zu\n", __func__, embd_inp.size());
         for (int i = 0; i < (int) embd_inp.size(); i++) {
-            LOG_TEE("%6d -> '%s'\n", embd_inp[i], llama_token_to_piece(ctx, embd_inp[i]).c_str());
+            LOG_INF("%6d -> '%s'\n", embd_inp[i], llama_token_to_piece(ctx, embd_inp[i]).c_str());
         }
 
         if (params.n_keep > add_bos) {
-            LOG_TEE("%s: static prompt based on n_keep: '", __func__);
+            LOG_INF("%s: static prompt based on n_keep: '", __func__);
             for (int i = 0; i < params.n_keep; i++) {
-                LOG_TEE("%s", llama_token_to_piece(ctx, embd_inp[i]).c_str());
+                LOG("%s", llama_token_to_piece(ctx, embd_inp[i]).c_str());
             }
-            LOG_TEE("'\n");
+            LOG("'\n");
         }
-        LOG_TEE("\n");
+        LOG_INF("\n");
     }
 
     // ctrl+C handling
@@ -423,40 +404,40 @@ int main(int argc, char ** argv) {
     }
 
     if (params.interactive) {
-        LOG_TEE("%s: interactive mode on.\n", __func__);
+        LOG("%s: interactive mode on.\n", __func__);
 
         if (!params.antiprompt.empty()) {
             for (const auto & antiprompt : params.antiprompt) {
-                LOG_TEE("Reverse prompt: '%s'\n", antiprompt.c_str());
+                LOG("Reverse prompt: '%s'\n", antiprompt.c_str());
                 if (params.verbose_prompt) {
                     auto tmp = ::llama_tokenize(ctx, antiprompt, false, true);
                     for (int i = 0; i < (int) tmp.size(); i++) {
-                        LOG_TEE("%6d -> '%s'\n", tmp[i], llama_token_to_piece(ctx, tmp[i]).c_str());
+                        LOG("%6d -> '%s'\n", tmp[i], llama_token_to_piece(ctx, tmp[i]).c_str());
                     }
                 }
             }
         }
 
         if (params.input_prefix_bos) {
-            LOG_TEE("Input prefix with BOS\n");
+            LOG("Input prefix with BOS\n");
         }
 
         if (!params.input_prefix.empty()) {
-            LOG_TEE("Input prefix: '%s'\n", params.input_prefix.c_str());
+            LOG("Input prefix: '%s'\n", params.input_prefix.c_str());
             if (params.verbose_prompt) {
                 auto tmp = ::llama_tokenize(ctx, params.input_prefix, true, true);
                 for (int i = 0; i < (int) tmp.size(); i++) {
-                    LOG_TEE("%6d -> '%s'\n", tmp[i], llama_token_to_piece(ctx, tmp[i]).c_str());
+                    LOG("%6d -> '%s'\n", tmp[i], llama_token_to_piece(ctx, tmp[i]).c_str());
                 }
             }
         }
 
         if (!params.input_suffix.empty()) {
-            LOG_TEE("Input suffix: '%s'\n", params.input_suffix.c_str());
+            LOG("Input suffix: '%s'\n", params.input_suffix.c_str());
             if (params.verbose_prompt) {
                 auto tmp = ::llama_tokenize(ctx, params.input_suffix, false, true);
                 for (int i = 0; i < (int) tmp.size(); i++) {
-                    LOG_TEE("%6d -> '%s'\n", tmp[i], llama_token_to_piece(ctx, tmp[i]).c_str());
+                    LOG("%6d -> '%s'\n", tmp[i], llama_token_to_piece(ctx, tmp[i]).c_str());
                 }
             }
         }
@@ -464,15 +445,15 @@ int main(int argc, char ** argv) {
 
     smpl = gpt_sampler_init(model, sparams);
     if (!smpl) {
-        fprintf(stderr, "%s: failed to initialize sampling subsystem\n", __func__);
+        LOG_ERR("%s: failed to initialize sampling subsystem\n", __func__);
-        exit(1);
+        return 1;
     }
 
-    LOG_TEE("sampling seed: %u\n", gpt_sampler_get_seed(smpl));
+    LOG_INF("sampler seed: %u\n",     gpt_sampler_get_seed(smpl));
-    LOG_TEE("sampling params: \n%s\n", sparams.print().c_str());
+    LOG_INF("sampler params: \n%s\n", sparams.print().c_str());
-    LOG_TEE("sampler constr: \n%s\n", gpt_sampler_print(smpl).c_str());
+    LOG_INF("sampler chain: %s\n",    gpt_sampler_print(smpl).c_str());
 
-    LOG_TEE("generate: n_ctx = %d, n_batch = %d, n_predict = %d, n_keep = %d\n", n_ctx, params.n_batch, params.n_predict, params.n_keep);
+    LOG_INF("generate: n_ctx = %d, n_batch = %d, n_predict = %d, n_keep = %d\n", n_ctx, params.n_batch, params.n_predict, params.n_keep);
 
     // group-attention state
     // number of grouped KV tokens so far (used only if params.grp_attn_n > 1)
@@ -486,9 +467,9 @@ int main(int argc, char ** argv) {
         GGML_ASSERT(ga_w % ga_n == 0            && "grp_attn_w must be a multiple of grp_attn_n");     // NOLINT
       //GGML_ASSERT(n_ctx_train % ga_w == 0     && "n_ctx_train must be a multiple of grp_attn_w");    // NOLINT
       //GGML_ASSERT(n_ctx >= n_ctx_train * ga_n && "n_ctx must be at least n_ctx_train * grp_attn_n"); // NOLINT
-        LOG_TEE("self-extend: n_ctx_train = %d, grp_attn_n = %d, grp_attn_w = %d\n", n_ctx_train, ga_n, ga_w);
+        LOG_INF("self-extend: n_ctx_train = %d, grp_attn_n = %d, grp_attn_w = %d\n", n_ctx_train, ga_n, ga_w);
     }
-    LOG_TEE("\n\n");
+    LOG("\n");
 
     if (params.interactive) {
         const char * control_message;
@@ -500,11 +481,11 @@ int main(int argc, char ** argv) {
                               " - To return control without starting a new line, end your input with '/'.\n"
                               " - If you want to submit another line, end your input with '\\'.\n";
         }
-        LOG_TEE("== Running in interactive mode. ==\n");
+        LOG("== Running in interactive mode. ==\n");
 #if defined (__unix__) || (defined (__APPLE__) && defined (__MACH__)) || defined (_WIN32)
-        LOG_TEE(       " - Press Ctrl+C to interject at any time.\n");
+        LOG(       " - Press Ctrl+C to interject at any time.\n");
 #endif
-        LOG_TEE(       "%s\n", control_message);
+        LOG(       "%s\n", control_message);
 
         is_interacting = params.interactive_first;
     }
@@ -543,7 +524,7 @@ int main(int argc, char ** argv) {
         llama_token * enc_input_buf = embd_inp.data();
 
         if (llama_encode(ctx, llama_batch_get_one(enc_input_buf, enc_input_size, 0, 0))) {
-            LOG_TEE("%s : failed to eval\n", __func__);
+            LOG_ERR("%s : failed to eval\n", __func__);
             return 1;
         }
 
@@ -569,9 +550,8 @@ int main(int argc, char ** argv) {
                 embd.resize(max_embd_size);
 
                 console::set_display(console::error);
-                printf("<<input too long: skipped %d token%s>>", skipped_tokens, skipped_tokens != 1 ? "s" : "");
+                LOG_WRN("<<input too long: skipped %d token%s>>", skipped_tokens, skipped_tokens != 1 ? "s" : "");
                 console::set_display(console::reset);
-                fflush(stdout);
             }
 
             if (ga_n == 1) {
@@ -581,14 +561,14 @@ int main(int argc, char ** argv) {
                 // - take half of the last (n_ctx - n_keep) tokens and recompute the logits in batches
                 if (n_past + (int) embd.size() >= n_ctx) {
                     if (params.n_predict == -2) {
-                        LOG_TEE("\n\n%s: context full and n_predict == -%d => stopping\n", __func__, params.n_predict);
+                        LOG_DBG("\n\n%s: context full and n_predict == -%d => stopping\n", __func__, params.n_predict);
                         break;
                     }
 
                     const int n_left    = n_past - params.n_keep;
                     const int n_discard = n_left/2;
 
-                    LOG("context full, swapping: n_past = %d, n_left = %d, n_ctx = %d, n_keep = %d, n_discard = %d\n",
+                    LOG_DBG("context full, swapping: n_past = %d, n_left = %d, n_ctx = %d, n_keep = %d, n_discard = %d\n",
                             n_past, n_left, n_ctx, params.n_keep, n_discard);
 
                     llama_kv_cache_seq_rm (ctx, 0, params.n_keep            , params.n_keep + n_discard);
@@ -596,11 +576,11 @@ int main(int argc, char ** argv) {
 
                     n_past -= n_discard;
 
-                    LOG("after swap: n_past = %d\n", n_past);
+                    LOG_DBG("after swap: n_past = %d\n", n_past);
 
-                    LOG("embd: %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx, embd).c_str());
+                    LOG_DBG("embd: %s\n", string_from(ctx, embd).c_str());
 
-                    LOG("clear session path\n");
+                    LOG_DBG("clear session path\n");
                     path_session.clear();
                 }
             } else {
@@ -610,10 +590,10 @@ int main(int argc, char ** argv) {
                     const int bd = (ga_w/ga_n)*(ga_n - 1);
                     const int dd = (ga_w/ga_n) - ib*bd - ga_w;
 
-                    LOG("\n");
+                    LOG_DBG("\n");
-                    LOG("shift: [%6d, %6d] + %6d -> [%6d, %6d]\n", ga_i, n_past, ib*bd, ga_i + ib*bd, n_past + ib*bd);
+                    LOG_DBG("shift: [%6d, %6d] + %6d -> [%6d, %6d]\n", ga_i, n_past, ib*bd, ga_i + ib*bd, n_past + ib*bd);
-                    LOG("div:   [%6d, %6d] / %6d -> [%6d, %6d]\n", ga_i + ib*bd, ga_i + ib*bd + ga_w, ga_n, (ga_i + ib*bd)/ga_n, (ga_i + ib*bd + ga_w)/ga_n);
+                    LOG_DBG("div:   [%6d, %6d] / %6d -> [%6d, %6d]\n", ga_i + ib*bd, ga_i + ib*bd + ga_w, ga_n, (ga_i + ib*bd)/ga_n, (ga_i + ib*bd + ga_w)/ga_n);
-                    LOG("shift: [%6d, %6d] + %6d -> [%6d, %6d]\n", ga_i + ib*bd + ga_w, n_past + ib*bd, dd, ga_i + ib*bd + ga_w + dd, n_past + ib*bd + dd);
+                    LOG_DBG("shift: [%6d, %6d] + %6d -> [%6d, %6d]\n", ga_i + ib*bd + ga_w, n_past + ib*bd, dd, ga_i + ib*bd + ga_w + dd, n_past + ib*bd + dd);
 
                     llama_kv_cache_seq_add(ctx, 0, ga_i,                n_past,              ib*bd);
                     llama_kv_cache_seq_div(ctx, 0, ga_i + ib*bd,        ga_i + ib*bd + ga_w, ga_n);
@@ -623,7 +603,7 @@ int main(int argc, char ** argv) {
 
                     ga_i += ga_w/ga_n;
 
-                    LOG("\nn_past_old = %d, n_past = %d, ga_i = %d\n\n", n_past + bd, n_past, ga_i);
+                    LOG_DBG("\nn_past_old = %d, n_past = %d, ga_i = %d\n\n", n_past + bd, n_past, ga_i);
                 }
             }
 
@@ -655,19 +635,19 @@ int main(int argc, char ** argv) {
                     n_eval = params.n_batch;
                 }
 
-                LOG("eval: %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx, embd).c_str());
+                LOG_DBG("eval: %s\n", string_from(ctx, embd).c_str());
 
                 if (llama_decode(ctx, llama_batch_get_one(&embd[i], n_eval, n_past, 0))) {
-                    LOG_TEE("%s : failed to eval\n", __func__);
+                    LOG_ERR("%s : failed to eval\n", __func__);
                     return 1;
                 }
 
                 n_past += n_eval;
 
-                LOG("n_past = %d\n", n_past);
+                LOG_DBG("n_past = %d\n", n_past);
                 // Display total tokens alongside total time
                 if (params.n_print > 0 && n_past % params.n_print == 0) {
-                    LOG_TEE("\n\033[31mTokens consumed so far = %d / %d \033[0m\n", n_past, n_ctx);
+                    LOG_DBG("\n\033[31mTokens consumed so far = %d / %d \033[0m\n", n_past, n_ctx);
                 }
             }
 
@@ -685,14 +665,14 @@ int main(int argc, char ** argv) {
                 need_to_save_session = false;
                 llama_state_save_file(ctx, path_session.c_str(), session_tokens.data(), session_tokens.size());
 
-                LOG("saved session to %s\n", path_session.c_str());
+                LOG_DBG("saved session to %s\n", path_session.c_str());
             }
 
             const llama_token id = gpt_sampler_sample(smpl, ctx, -1);
 
-            gpt_sampler_accept(smpl, id, /* apply_grammar= */ true);
+            gpt_sampler_accept(smpl, id, /* accept_grammar= */ true);
 
-            // LOG("last: %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx, smpl->prev.to_vector()).c_str());
+            // LOG_DBG("last: %s\n", string_from(ctx, smpl->prev.to_vector()).c_str());
 
             embd.push_back(id);
 
@@ -702,16 +682,16 @@ int main(int argc, char ** argv) {
             // decrement remaining sampling budget
             --n_remain;
 
-            LOG("n_remain: %d\n", n_remain);
+            LOG_DBG("n_remain: %d\n", n_remain);
         } else {
             // some user input remains from prompt or interaction, forward it to processing
-            LOG("embd_inp.size(): %d, n_consumed: %d\n", (int) embd_inp.size(), n_consumed);
+            LOG_DBG("embd_inp.size(): %d, n_consumed: %d\n", (int) embd_inp.size(), n_consumed);
             while ((int) embd_inp.size() > n_consumed) {
                 embd.push_back(embd_inp[n_consumed]);
 
                 // push the prompt in the sampling context in order to apply repetition penalties later
                 // for the prompt, we don't apply grammar rules
-                gpt_sampler_accept(smpl, embd_inp[n_consumed], /* apply_grammar= */ false);
+                gpt_sampler_accept(smpl, embd_inp[n_consumed], /* accept_grammar= */ false);
 
                 ++n_consumed;
                 if ((int) embd.size() >= params.n_batch) {
@@ -726,7 +706,7 @@ int main(int argc, char ** argv) {
                 const std::string token_str = llama_token_to_piece(ctx, id, params.special);
 
                 // Console/Stream Output
-                fprintf(stdout, "%s", token_str.c_str());
+                LOG("%s", token_str.c_str());
 
                 // Record Displayed Tokens To Log
                 // Note: Generated tokens are created one by one hence this check
@@ -738,8 +718,6 @@ int main(int argc, char ** argv) {
                     output_tokens.push_back(id);
                     output_ss << token_str;
                 }
-
-                fflush(stdout);
             }
         }
 
@@ -788,13 +766,13 @@ int main(int argc, char ** argv) {
                 }
 
                 if (is_antiprompt) {
-                    LOG("found antiprompt: %s\n", last_output.c_str());
+                    LOG_DBG("found antiprompt: %s\n", last_output.c_str());
                 }
             }
 
             // deal with end of generation tokens in interactive mode
             if (llama_token_is_eog(model, gpt_sampler_last(smpl))) {
-                LOG("found an EOG token\n");
+                LOG_DBG("found an EOG token\n");
 
                 if (params.interactive) {
                     if (!params.antiprompt.empty()) {
@@ -808,7 +786,7 @@ int main(int argc, char ** argv) {
                         chat_add_and_format(model, chat_msgs, "assistant", assistant_ss.str());
                     }
                     is_interacting = true;
-                    printf("\n");
+                    LOG("\n");
                 }
             }
 
@@ -819,21 +797,21 @@ int main(int argc, char ** argv) {
             }
 
             if (n_past > 0 && is_interacting) {
-                LOG("waiting for user input\n");
+                LOG_DBG("waiting for user input\n");
 
                 if (params.conversation) {
-                    printf("\n> ");
+                    LOG("\n> ");
                 }
 
                 if (params.input_prefix_bos) {
-                    LOG("adding input prefix BOS token\n");
+                    LOG_DBG("adding input prefix BOS token\n");
                     embd_inp.push_back(llama_token_bos(model));
                 }
 
                 std::string buffer;
                 if (!params.input_prefix.empty() && !params.conversation) {
-                    LOG("appending input prefix: '%s'\n", params.input_prefix.c_str());
+                    LOG_DBG("appending input prefix: '%s'\n", params.input_prefix.c_str());
-                    printf("%s", params.input_prefix.c_str());
+                    LOG("%s", params.input_prefix.c_str());
                 }
 
                 // color user input only
@@ -856,11 +834,11 @@ int main(int argc, char ** argv) {
                 if (buffer.length() > 1) {
                     // append input suffix if any
                     if (!params.input_suffix.empty() && !params.conversation) {
-                        LOG("appending input suffix: '%s'\n", params.input_suffix.c_str());
+                        LOG_DBG("appending input suffix: '%s'\n", params.input_suffix.c_str());
-                        printf("%s", params.input_suffix.c_str());
+                        LOG("%s", params.input_suffix.c_str());
                     }
 
-                    LOG("buffer: '%s'\n", buffer.c_str());
+                    LOG_DBG("buffer: '%s'\n", buffer.c_str());
 
                     const size_t original_size = embd_inp.size();
 
@@ -877,7 +855,7 @@ int main(int argc, char ** argv) {
                     const auto line_inp = ::llama_tokenize(ctx, user_inp,            false, format_chat);
                     const auto line_sfx = ::llama_tokenize(ctx, params.input_suffix, false, true);
 
-                    LOG("input tokens: %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx, line_inp).c_str());
+                    LOG_DBG("input tokens: %s\n", string_from(ctx, line_inp).c_str());
 
                     // if user stop generation mid-way, we must add EOT to finish model's last response
                     if (need_insert_eot && format_chat) {
@@ -900,9 +878,9 @@ int main(int argc, char ** argv) {
                     assistant_ss.str("");
 
                     n_remain -= line_inp.size();
-                    LOG("n_remain: %d\n", n_remain);
+                    LOG_DBG("n_remain: %d\n", n_remain);
                 } else {
-                    LOG("empty line, passing control back\n");
+                    LOG_DBG("empty line, passing control back\n");
                 }
 
                 input_echo = false; // do not echo this again
@@ -918,7 +896,7 @@ int main(int argc, char ** argv) {
 
         // end of generation
         if (!embd.empty() && llama_token_is_eog(model, embd.back()) && !(params.interactive)) {
-            LOG_TEE(" [end of text]\n");
+            LOG(" [end of text]\n");
             break;
         }
 
@@ -931,11 +909,11 @@ int main(int argc, char ** argv) {
     }
 
     if (!path_session.empty() && params.prompt_cache_all && !params.prompt_cache_ro) {
-        LOG_TEE("\n%s: saving final output to session file '%s'\n", __func__, path_session.c_str());
+        LOG("\n%s: saving final output to session file '%s'\n", __func__, path_session.c_str());
         llama_state_save_file(ctx, path_session.c_str(), session_tokens.data(), session_tokens.size());
     }
 
-    LOG_TEE("\n");
+    LOG("\n\n");
     gpt_perf_print(ctx, smpl);
     write_logfile(ctx, params, model, input_tokens, output_ss.str(), output_tokens);
 
@@ -949,9 +927,5 @@ int main(int argc, char ** argv) {
     ggml_threadpool_free(threadpool);
     ggml_threadpool_free(threadpool_batch);
 
-#ifndef LOG_DISABLE_LOGS
-    LOG_TEE("Log end\n");
-#endif // LOG_DISABLE_LOGS
-
     return 0;
 }

examples/parallel/parallel.cpp

@@ -4,6 +4,7 @@
 #include "arg.h"
 #include "common.h"
 #include "sampling.h"
+#include "log.h"
 #include "llama.h"
 
 #include <cmath>
@@ -83,7 +84,9 @@ static void print_date_time() {
     char buffer[80];
     strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", local_time);
 
-    printf("\n\033[35mrun parameters as at %s\033[0m\n", buffer);
+    LOG_INF("\n");
+    LOG_INF("\033[35mrun parameters as of %s\033[0m\n", buffer);
+    LOG_INF("\n");
 }
 
 // Define a split string function to ...
@@ -100,6 +103,8 @@ static std::vector<std::string> split_string(const std::string& input, char deli
 int main(int argc, char ** argv) {
     srand(1234);
 
+    gpt_init();
+
     gpt_params params;
 
     if (!gpt_params_parse(argc, argv, params, LLAMA_EXAMPLE_PARALLEL)) {
@@ -120,12 +125,6 @@ int main(int argc, char ** argv) {
 
     const bool dump_kv_cache = params.dump_kv_cache;
 
-#ifndef LOG_DISABLE_LOGS
-    log_set_target(log_filename_generator("parallel", "log"));
-    LOG_TEE("Log start\n");
-    log_dump_cmdline(argc, argv);
-#endif // LOG_DISABLE_LOGS
-
     // init llama.cpp
     llama_backend_init();
     llama_numa_init(params.numa);
@@ -138,23 +137,22 @@ int main(int argc, char ** argv) {
 
     // load the prompts from an external file if there are any
     if (params.prompt.empty()) {
-        printf("\n\033[32mNo new questions so proceed with build-in defaults.\033[0m\n");
+        LOG_INF("\033[32mNo new questions so proceed with build-in defaults.\033[0m\n");
     } else {
         // Output each line of the input params.prompts vector and copy to k_prompts
         int index = 0;
-        printf("\n\033[32mNow printing the external prompt file %s\033[0m\n\n", params.prompt_file.c_str());
+        LOG_INF("\033[32mNow printing the external prompt file %s\033[0m\n\n", params.prompt_file.c_str());
 
         std::vector<std::string> prompts = split_string(params.prompt, '\n');
         for (const auto& prompt : prompts) {
             k_prompts.resize(index + 1);
             k_prompts[index] = prompt;
             index++;
-            printf("%3d prompt: %s\n", index, prompt.c_str());
+            LOG_INF("%3d prompt: %s\n", index, prompt.c_str());
         }
     }
 
-    fprintf(stderr, "\n\n");
+    LOG_INF("\n\n");
-    fflush(stderr);
 
     const int n_ctx = llama_n_ctx(ctx);
 
@@ -183,19 +181,19 @@ int main(int argc, char ** argv) {
 
     const auto t_main_start = ggml_time_us();
 
-    LOG_TEE("%s: Simulating parallel requests from clients:\n", __func__);
+    LOG_INF("%s: Simulating parallel requests from clients:\n", __func__);
-    LOG_TEE("%s: n_parallel = %d, n_sequences = %d, cont_batching = %d, system tokens = %d\n", __func__, n_clients, n_seq, cont_batching, n_tokens_system);
+    LOG_INF("%s: n_parallel = %d, n_sequences = %d, cont_batching = %d, system tokens = %d\n", __func__, n_clients, n_seq, cont_batching, n_tokens_system);
-    LOG_TEE("\n");
+    LOG_INF("\n");
 
     {
-        LOG_TEE("%s: Evaluating the system prompt ...\n", __func__);
+        LOG_INF("%s: Evaluating the system prompt ...\n", __func__);
 
         for (int32_t i = 0; i < n_tokens_system; ++i) {
             llama_batch_add(batch, tokens_system[i], i, { 0 }, false);
         }
 
         if (llama_decode(ctx, batch) != 0) {
-            LOG_TEE("%s: llama_decode() failed\n", __func__);
+            LOG_ERR("%s: llama_decode() failed\n", __func__);
             return 1;
         }
 
@@ -204,10 +202,10 @@ int main(int argc, char ** argv) {
             llama_kv_cache_seq_cp(ctx, 0, i, -1, -1);
         }
 
-        LOG_TEE("\n");
+        LOG_INF("\n");
     }
 
-    LOG_TEE("Processing requests ...\n\n");
+    LOG_INF("Processing requests ...\n\n");
 
     while (true) {
         if (dump_kv_cache) {
@@ -238,7 +236,7 @@ int main(int argc, char ** argv) {
                 llama_kv_cache_seq_cp(ctx, 0, i, -1, -1);
             }
 
-            LOG_TEE("%s: clearing the KV cache\n", __func__);
+            LOG_INF("%s: clearing the KV cache\n", __func__);
         }
 
         // insert new sequences for decoding
@@ -273,7 +271,7 @@ int main(int argc, char ** argv) {
                     client.n_decoded = 0;
                     client.i_batch   = batch.n_tokens - 1;
 
-                    LOG_TEE("\033[31mClient %3d, seq %4d, started decoding ...\033[0m\n", client.id, client.seq_id);
+                    LOG_INF("\033[31mClient %3d, seq %4d, started decoding ...\033[0m\n", client.id, client.seq_id);
 
                     g_seq_id += 1;
 
@@ -317,11 +315,11 @@ int main(int argc, char ** argv) {
             if (ret != 0) {
                 if (n_batch == 1 || ret < 0) {
                     // if you get here, it means the KV cache is full - try increasing it via the context size
-                    LOG_TEE("%s : failed to decode the batch, n_batch = %d, ret = %d\n", __func__, n_batch, ret);
+                    LOG_ERR("%s : failed to decode the batch, n_batch = %d, ret = %d\n", __func__, n_batch, ret);
                     return 1;
                 }
 
-                LOG("%s : failed to decode the batch, retrying with n_batch = %d\n", __func__, n_batch / 2);
+                LOG_ERR("%s : failed to decode the batch, retrying with n_batch = %d\n", __func__, n_batch / 2);
 
                 n_cache_miss += 1;
 
@@ -332,7 +330,7 @@ int main(int argc, char ** argv) {
                 continue;
             }
 
-            LOG("%s : decoded batch of %d tokens\n", __func__, n_tokens);
+            LOG_DBG("%s : decoded batch of %d tokens\n", __func__, n_tokens);
 
             for (auto & client : clients) {
                 if (client.i_batch < (int) i || client.i_batch >= (int) (i + n_tokens)) {
@@ -377,7 +375,7 @@ int main(int argc, char ** argv) {
 
                     const auto t_main_end = ggml_time_us();
 
-                    LOG_TEE("\033[31mClient %3d, seq %3d/%3d, prompt %4d t, response %4d t, time %5.2f s, speed %5.2f t/s, cache miss %d \033[0m \nInput:    %s\n\033[35mResponse: %s\033[0m\n\n",
+                    LOG_INF("\033[31mClient %3d, seq %3d/%3d, prompt %4d t, response %4d t, time %5.2f s, speed %5.2f t/s, cache miss %d \033[0m \n\nInput:    %s\n\033[35mResponse: %s\033[0m\n\n",
                             client.id, client.seq_id, n_seq, client.n_prompt, client.n_decoded,
                             (t_main_end - client.t_start_prompt) / 1e6,
                             (double) (client.n_prompt + client.n_decoded) / (t_main_end - client.t_start_prompt) * 1e6,
@@ -400,19 +398,19 @@ int main(int argc, char ** argv) {
 
     print_date_time();
 
-    LOG_TEE("\n%s: n_parallel = %d, n_sequences = %d, cont_batching = %d, system tokens = %d\n", __func__, n_clients, n_seq, cont_batching, n_tokens_system);
+    LOG_INF("%s: n_parallel = %d, n_sequences = %d, cont_batching = %d, system tokens = %d\n", __func__, n_clients, n_seq, cont_batching, n_tokens_system);
     if (params.prompt_file.empty()) {
         params.prompt_file = "used built-in defaults";
     }
-    LOG_TEE("External prompt file: \033[32m%s\033[0m\n", params.prompt_file.c_str());
+    LOG_INF("External prompt file: \033[32m%s\033[0m\n", params.prompt_file.c_str());
-    LOG_TEE("Model and path used:  \033[32m%s\033[0m\n\n", params.model.c_str());
+    LOG_INF("Model and path used:  \033[32m%s\033[0m\n\n", params.model.c_str());
 
-    LOG_TEE("Total prompt tokens: %6d, speed: %5.2f t/s\n", n_total_prompt, (double) (n_total_prompt              ) / (t_main_end - t_main_start) * 1e6);
+    LOG_INF("Total prompt tokens: %6d, speed: %5.2f t/s\n", n_total_prompt, (double) (n_total_prompt              ) / (t_main_end - t_main_start) * 1e6);
-    LOG_TEE("Total gen tokens:    %6d, speed: %5.2f t/s\n", n_total_gen,    (double) (n_total_gen                 ) / (t_main_end - t_main_start) * 1e6);
+    LOG_INF("Total gen tokens:    %6d, speed: %5.2f t/s\n", n_total_gen,    (double) (n_total_gen                 ) / (t_main_end - t_main_start) * 1e6);
-    LOG_TEE("Total speed (AVG):   %6s  speed: %5.2f t/s\n", "",             (double) (n_total_prompt + n_total_gen) / (t_main_end - t_main_start) * 1e6);
+    LOG_INF("Total speed (AVG):   %6s  speed: %5.2f t/s\n", "",             (double) (n_total_prompt + n_total_gen) / (t_main_end - t_main_start) * 1e6);
-    LOG_TEE("Cache misses:        %6d\n", n_cache_miss);
+    LOG_INF("Cache misses:        %6d\n", n_cache_miss);
 
-    LOG_TEE("\n");
+    LOG_INF("\n");
 
     // TODO: print sampling/grammar timings for all clients
     llama_perf_context_print(ctx);
@@ -424,7 +422,7 @@ int main(int argc, char ** argv) {
 
     llama_backend_free();
 
-    fprintf(stderr, "\n\n");
+    LOG("\n\n");
 
     return 0;
 }

examples/passkey/passkey.cpp

@@ -1,5 +1,6 @@
 #include "arg.h"
 #include "common.h"
+#include "log.h"
 #include "llama.h"
 
 #include <cmath>
@@ -8,12 +9,14 @@
 #include <vector>
 
 static void print_usage(int, char ** argv) {
-    LOG_TEE("\nexample usage:\n");
+    LOG("\nexample usage:\n");
-    LOG_TEE("\n    %s -m model.gguf --junk 250 --pos 90 --keep 32 --grp-attn-n 2 [--seed 1234]\n", argv[0]);
+    LOG("\n    %s -m model.gguf --junk 250 --pos 90 --keep 32 --grp-attn-n 2 [--seed 1234]\n", argv[0]);
-    LOG_TEE("\n");
+    LOG("\n");
 }
 
 int main(int argc, char ** argv) {
+    gpt_init();
+
     gpt_params params;
 
     params.n_junk = 250;
@@ -63,7 +66,7 @@ int main(int argc, char ** argv) {
     llama_model * model = llama_load_model_from_file(params.model.c_str(), model_params);
 
     if (model == NULL) {
-        fprintf(stderr , "%s: error: unable to load model\n" , __func__);
+        LOG_ERR("%s: unable to load model\n" , __func__);
         return 1;
     }
 
@@ -77,7 +80,7 @@ int main(int argc, char ** argv) {
 
     llama_context * ctx = llama_new_context_with_model(model, ctx_params);
     if (ctx == NULL) {
-        fprintf(stderr , "%s: error: failed to create the llama_context\n" , __func__);
+        LOG_ERR("%s: failed to create the llama_context\n" , __func__);
         return 1;
     }
 
@@ -107,14 +110,14 @@ int main(int argc, char ** argv) {
     const int n_batch     = ctx_params.n_batch;
     const int n_batch_grp = ctx_params.n_batch/n_grp;
 
-    LOG_TEE("\n%s: n_len = %d, n_ctx = %d, n_kv_req = %d, n_grp = %d, n_batch = %d, n_junk = %d, i_pos = %d\n", __func__, n_len, n_ctx, n_kv_req, n_grp, n_batch, n_junk, i_pos);
+    LOG_INF("\n%s: n_len = %d, n_ctx = %d, n_kv_req = %d, n_grp = %d, n_batch = %d, n_junk = %d, i_pos = %d\n", __func__, n_len, n_ctx, n_kv_req, n_grp, n_batch, n_junk, i_pos);
 
     // print the prompt token-by-token
 
-    LOG_TEE("\n");
+    LOG_INF("\n");
-    LOG_TEE("prefix tokens: %d\n", n_tokens_prefix);
+    LOG_INF("prefix tokens: %d\n", n_tokens_prefix);
-    LOG_TEE("prompt tokens: %d\n", n_tokens_all);
+    LOG_INF("prompt tokens: %d\n", n_tokens_all);
-    //LOG_TEE("prompt: %s\n", params.prompt.c_str());
+    //LOG_INF("prompt: %s\n", params.prompt.c_str());
 
     llama_batch batch = llama_batch_init(params.n_batch, 0, 1);
 
@@ -145,11 +148,11 @@ int main(int argc, char ** argv) {
         }
 
         if (llama_decode(ctx, batch) != 0) {
-            LOG_TEE("%s: llama_decode() failed\n", __func__);
+            LOG_INF("%s: llama_decode() failed\n", __func__);
             return 1;
         }
 
-        LOG_TEE("%s: processed: [%6d, %6d)\n", __func__, i, std::min(i + n_batch, n_tokens_all));
+        LOG_INF("%s: processed: [%6d, %6d)\n", __func__, i, std::min(i + n_batch, n_tokens_all));
 
         if (i + n_batch >= n_tokens_all) {
             break;
@@ -159,7 +162,7 @@ int main(int argc, char ** argv) {
     for (int i = n_ctx; i < n_tokens_all; i += n_batch) {
         const int n_discard = n_batch;
 
-        LOG_TEE("%s: shifting KV cache with %d\n", __func__, n_discard);
+        LOG_INF("%s: shifting KV cache with %d\n", __func__, n_discard);
 
         llama_kv_cache_seq_rm (ctx, 0, n_keep            , n_keep + n_discard);
         llama_kv_cache_seq_add(ctx, 0, n_keep + n_discard, n_ctx,  -n_discard);
@@ -179,18 +182,18 @@ int main(int argc, char ** argv) {
         }
 
         if (llama_decode(ctx, batch) != 0) {
-            LOG_TEE("%s: llama_decode() failed\n", __func__);
+            LOG_ERR("%s: llama_decode() failed\n", __func__);
             return 1;
         }
 
-        LOG_TEE("%s: processed: [%6d, %6d)\n", __func__, i, std::min(i + n_batch, n_tokens_all));
+        LOG_INF("%s: processed: [%6d, %6d)\n", __func__, i, std::min(i + n_batch, n_tokens_all));
     }
 
     {
         const int n_discard = n_past - n_ctx + n_predict;
 
         if (n_discard > 0) {
-            LOG_TEE("%s: shifting KV cache with %d to free space for the answer\n", __func__, n_discard);
+            LOG_INF("%s: shifting KV cache with %d to free space for the answer\n", __func__, n_discard);
 
             llama_kv_cache_seq_rm (ctx, 0, n_keep            , n_keep + n_discard);
             llama_kv_cache_seq_add(ctx, 0, n_keep + n_discard, n_ctx,  -n_discard);
@@ -201,17 +204,16 @@ int main(int argc, char ** argv) {
         }
     }
 
-    LOG_TEE("\n");
+    LOG_INF("\n");
-    LOG_TEE("%s: passkey = %d, inserted at position %d / %d (token pos: ~%d)\n", __func__, passkey, i_pos, n_junk, (i_pos * n_tokens_all) / n_junk);
+    LOG_INF("%s: passkey = %d, inserted at position %d / %d (token pos: ~%d)\n", __func__, passkey, i_pos, n_junk, (i_pos * n_tokens_all) / n_junk);
-    LOG_TEE("\n");
+    LOG_INF("\n");
 
     // main loop
 
     int n_cur    = n_tokens_all;
     int n_decode = 0;
 
-    LOG_TEE("%s", prompt_suffix.c_str());
+    LOG_INF("%s", prompt_suffix.c_str());
-    fflush(stdout);
 
     const auto t_main_start = ggml_time_us();
 
@@ -222,13 +224,12 @@ int main(int argc, char ** argv) {
 
             // is it an end of generation?
             if (llama_token_is_eog(model, new_token_id) || n_cur == n_len) {
-                LOG_TEE("\n");
+                LOG("\n");
 
                 break;
             }
 
-            LOG_TEE("%s", llama_token_to_piece(ctx, new_token_id).c_str());
+            LOG("%s", llama_token_to_piece(ctx, new_token_id).c_str());
-            fflush(stdout);
 
             n_decode += 1;
 
@@ -243,22 +244,22 @@ int main(int argc, char ** argv) {
 
         // evaluate the current batch with the transformer model
         if (llama_decode(ctx, batch)) {
-            fprintf(stderr, "%s : failed to eval, return code %d\n", __func__, 1);
+            LOG_ERR("%s : failed to eval, return code %d\n", __func__, 1);
             return 1;
         }
     }
 
-    LOG_TEE("\n");
+    LOG("\n");
 
     const auto t_main_end = ggml_time_us();
 
-    LOG_TEE("%s: decoded %d tokens in %.2f s, speed: %.2f t/s\n",
+    LOG_INF("%s: decoded %d tokens in %.2f s, speed: %.2f t/s\n",
             __func__, n_decode, (t_main_end - t_main_start) / 1000000.0f, n_decode / ((t_main_end - t_main_start) / 1000000.0f));
 
-    LOG_TEE("\n");
+    LOG("\n");
     llama_perf_context_print(ctx);
 
-    fprintf(stderr, "\n");
+    LOG("\n");
 
     llama_sampler_free(smpl);
 

examples/perplexity/perplexity.cpp

@@ -1,7 +1,9 @@
 #include "arg.h"
 #include "common.h"
+#include "log.h"
 #include "llama.h"
 
+#include <algorithm>
 #include <array>
 #include <atomic>
 #include <cmath>
@@ -41,7 +43,7 @@ static void write_logfile(
     }
 
     if (params.hellaswag) {
-        fprintf(stderr, "%s: warning: logging results is not implemented for HellaSwag. No files will be written.\n", __func__);
+        LOG_WRN("%s: logging results is not implemented for HellaSwag. No files will be written.\n", __func__);
         return;
     }
 
@@ -49,7 +51,7 @@ static void write_logfile(
 
     const bool success = fs_create_directory_with_parents(params.logdir);
     if (!success) {
-        fprintf(stderr, "%s: warning: failed to create logdir %s, cannot write logfile\n",
+        LOG_WRN("%s: failed to create logdir %s, cannot write logfile\n",
                 __func__, params.logdir.c_str());
         return;
     }
@@ -58,7 +60,7 @@ static void write_logfile(
     FILE * logfile = fopen(logfile_path.c_str(), "w");
 
     if (logfile == NULL) {
-        fprintf(stderr, "%s: failed to open logfile %s\n", __func__, logfile_path.c_str());
+        LOG_ERR("%s: failed to open logfile %s\n", __func__, logfile_path.c_str());
         return;
     }
 
@@ -344,16 +346,16 @@ static results_perplexity perplexity_v2(llama_context * ctx, const gpt_params &
     const bool add_bos = llama_add_bos_token(llama_get_model(ctx));
     GGML_ASSERT(!llama_add_eos_token(llama_get_model(ctx)));
 
-    fprintf(stderr, "%s: tokenizing the input ..\n", __func__);
+    LOG_INF("%s: tokenizing the input ..\n", __func__);
 
     std::vector<llama_token> tokens = ::llama_tokenize(ctx, params.prompt, true);
 
     const int n_ctx = llama_n_ctx(ctx);
 
     if (int(tokens.size()) < 2*n_ctx) {
-        fprintf(stderr, "%s: you need at least %d tokens to evaluate perplexity with a context of %d\n",__func__,2*n_ctx,
+        LOG_ERR("%s: you need at least %d tokens to evaluate perplexity with a context of %d\n",__func__,2*n_ctx,
                 n_ctx);
-        fprintf(stderr, "%s: the data file you provided tokenizes to only %zu tokens\n",__func__,tokens.size());
+        LOG_ERR("%s: the data file you provided tokenizes to only %zu tokens\n",__func__,tokens.size());
         return {std::move(tokens), 0., {}, {}};
     }
 
@@ -364,16 +366,16 @@ static results_perplexity perplexity_v2(llama_context * ctx, const gpt_params &
     prob_history.resize(tokens.size());
 
     if (params.ppl_stride <= 0) {
-        fprintf(stderr, "%s: stride is %d but must be greater than zero!\n",__func__,params.ppl_stride);
+        LOG_ERR("%s: stride is %d but must be greater than zero!\n",__func__,params.ppl_stride);
         return {tokens, -1, logit_history, prob_history};
     }
 
     const int calc_chunk = n_ctx;
 
-    fprintf(stderr, "%s: have %zu tokens. Calculation chunk = %d\n", __func__, tokens.size(), calc_chunk);
+    LOG_INF("%s: have %zu tokens. Calculation chunk = %d\n", __func__, tokens.size(), calc_chunk);
 
     if (int(tokens.size()) <= calc_chunk) {
-        fprintf(stderr, "%s: there are only %zu tokens, this is not enough for a context size of %d and stride %d\n",__func__,
+        LOG_ERR("%s: there are only %zu tokens, this is not enough for a context size of %d and stride %d\n",__func__,
                 tokens.size(), n_ctx, params.ppl_stride);
         return {tokens, -1, logit_history, prob_history};
     }
@@ -387,14 +389,14 @@ static results_perplexity perplexity_v2(llama_context * ctx, const gpt_params &
     int count = 0;
     double nll = 0.0;
 
-    fprintf(stderr, "%s: calculating perplexity over %d chunks, batch_size=%d\n", __func__, n_chunk, n_batch);
+    LOG_INF("%s: calculating perplexity over %d chunks, batch_size=%d\n", __func__, n_chunk, n_batch);
 
     for (int i = 0; i < n_chunk; ++i) {
         const int start =     i * params.ppl_stride;
         const int end   = start + calc_chunk;
 
         const int num_batches = (calc_chunk + n_batch - 1) / n_batch;
-        //fprintf(stderr, "%s: evaluating %d...%d using %d batches\n", __func__, start, end, num_batches);
+        //LOG_DBG("%s: evaluating %d...%d using %d batches\n", __func__, start, end, num_batches);
 
         std::vector<float> logits;
 
@@ -407,10 +409,10 @@ static results_perplexity perplexity_v2(llama_context * ctx, const gpt_params &
             const int batch_start = start + j * n_batch;
             const int batch_size  = std::min(end - batch_start, n_batch);
 
-            //fprintf(stderr, "    Batch %d: starts at %d, size is %d, n_past is %d\n",j,batch_start,batch_size,j * n_batch);
+            //LOG_DBG("    Batch %d: starts at %d, size is %d, n_past is %d\n",j,batch_start,batch_size,j * n_batch);
             // TODO: use llama_batch.logits instead of relying on logits_all == true
             if (llama_decode(ctx, llama_batch_get_one(tokens.data() + batch_start, batch_size, j * n_batch, 0))) {
-                //fprintf(stderr, "%s : failed to eval\n", __func__);
+                //LOG_ERR("%s : failed to eval\n", __func__);
                 return {tokens, -1, logit_history, prob_history};
             }
 
@@ -434,16 +436,17 @@ static results_perplexity perplexity_v2(llama_context * ctx, const gpt_params &
 
         if (i == 0) {
             const float t_total = std::chrono::duration<float>(t_end - t_start).count();
-            fprintf(stderr, "%s: %.2f seconds per pass - ETA ", __func__, t_total);
+            LOG_INF("%s: %.2f seconds per pass - ETA ", __func__, t_total);
             int total_seconds = (int)(t_total * n_chunk);
             if (total_seconds >= 60*60) {
-                fprintf(stderr, "%d hours ", total_seconds / (60*60));
+                LOG("%d hours ", total_seconds / (60*60));
                 total_seconds = total_seconds % (60*60);
             }
-            fprintf(stderr, "%.2f minutes\n", total_seconds / 60.0);
+            LOG("%.2f minutes\n", total_seconds / 60.0);
         }
+        LOG("\n");
 
-        //fprintf(stderr, "%s: using tokens %d...%d\n",__func__,params.n_ctx - params.ppl_stride + start, params.n_ctx + start);
+        //LOG_DBG("%s: using tokens %d...%d\n",__func__,params.n_ctx - params.ppl_stride + start, params.n_ctx + start);
         for (int j = n_ctx - params.ppl_stride - 1; j < n_ctx - 1; ++j) {
 
             // Calculate probability of next token, given the previous ones.
@@ -460,13 +463,12 @@ static results_perplexity perplexity_v2(llama_context * ctx, const gpt_params &
         }
         // perplexity is e^(average negative log-likelihood)
         if (params.ppl_output_type == 0) {
-            printf("[%d]%.4lf,", i + 1, std::exp(nll / count));
+            LOG("[%d]%.4lf,", i + 1, std::exp(nll / count));
         } else {
-            printf("%8d  %.4lf\n", i*params.ppl_stride, std::exp(nll / count));
+            LOG("%8d  %.4lf\n", i*params.ppl_stride, std::exp(nll / count));
         }
-        fflush(stdout);
     }
-    printf("\n");
+    LOG("\n");
 
     return {tokens, std::exp(nll / count), logit_history, prob_history};
 }
@@ -488,26 +490,26 @@ static results_perplexity perplexity(llama_context * ctx, const gpt_params & par
     if (!params.logits_file.empty()) {
         logits_stream.open(params.logits_file.c_str(), std::ios::binary);
         if (!logits_stream.is_open()) {
-            fprintf(stderr, "%s: failed to open %s for writing\n", __func__, params.logits_file.c_str());
+            LOG_ERR("%s: failed to open %s for writing\n", __func__, params.logits_file.c_str());
             return {};
         }
-        fprintf(stderr, "%s: saving all logits to %s\n", __func__, params.logits_file.c_str());
+        LOG_INF("%s: saving all logits to %s\n", __func__, params.logits_file.c_str());
         logits_stream.write("_logits_", 8);
         logits_stream.write(reinterpret_cast<const char *>(&n_ctx), sizeof(n_ctx));
     }
 
     auto tim1 = std::chrono::high_resolution_clock::now();
-    fprintf(stderr, "%s: tokenizing the input ..\n", __func__);
+    LOG_INF("%s: tokenizing the input ..\n", __func__);
 
     std::vector<llama_token> tokens = ::llama_tokenize(ctx, params.prompt, true);
 
     auto tim2 = std::chrono::high_resolution_clock::now();
-    fprintf(stderr, "%s: tokenization took %g ms\n",__func__,1e-3*std::chrono::duration_cast<std::chrono::microseconds>(tim2-tim1).count());
+    LOG_INF("%s: tokenization took %g ms\n",__func__,1e-3*std::chrono::duration_cast<std::chrono::microseconds>(tim2-tim1).count());
 
     if (int(tokens.size()) < 2*n_ctx) {
-        fprintf(stderr, "%s: you need at least %d tokens to evaluate perplexity with a context of %d\n",__func__,2*n_ctx,
+        LOG_ERR("%s: you need at least %d tokens to evaluate perplexity with a context of %d\n",__func__,2*n_ctx,
                 n_ctx);
-        fprintf(stderr, "%s: the data file you provided tokenizes to only %zu tokens\n",__func__,tokens.size());
+        LOG_ERR("%s: the data file you provided tokenizes to only %zu tokens\n",__func__,tokens.size());
         return {std::move(tokens), 0., {}, {}};
     }
 
@@ -540,7 +542,7 @@ static results_perplexity perplexity(llama_context * ctx, const gpt_params & par
         logits.reserve((size_t)n_ctx * n_vocab);
     }
 
-    fprintf(stderr, "%s: calculating perplexity over %d chunks, n_ctx=%d, batch_size=%d, n_seq=%d\n", __func__, n_chunk, n_ctx, n_batch, n_seq);
+    LOG_INF("%s: calculating perplexity over %d chunks, n_ctx=%d, batch_size=%d, n_seq=%d\n", __func__, n_chunk, n_ctx, n_batch, n_seq);
 
     std::vector<std::thread> workers(std::thread::hardware_concurrency() - 1);
 
@@ -613,7 +615,7 @@ static results_perplexity perplexity(llama_context * ctx, const gpt_params & par
             }
 
             if (llama_decode(ctx, batch)) {
-                fprintf(stderr, "%s : failed to eval\n", __func__);
+                LOG_INF("%s : failed to eval\n", __func__);
                 return {tokens, -1, logit_history, prob_history};
             }
 
@@ -628,14 +630,15 @@ static results_perplexity perplexity(llama_context * ctx, const gpt_params & par
             llama_synchronize(ctx);
             const auto t_end = std::chrono::high_resolution_clock::now();
             const float t_total = std::chrono::duration<float>(t_end - t_start).count();
-            fprintf(stderr, "%s: %.2f seconds per pass - ETA ", __func__, t_total);
+            LOG_INF("%s: %.2f seconds per pass - ETA ", __func__, t_total);
             int total_seconds = (int)(t_total*n_chunk/n_seq);
             if (total_seconds >= 60*60) {
-                fprintf(stderr, "%d hours ", total_seconds / (60*60));
+                LOG("%d hours ", total_seconds / (60*60));
                 total_seconds = total_seconds % (60*60);
             }
-            fprintf(stderr, "%.2f minutes\n", total_seconds / 60.0);
+            LOG("%.2f minutes\n", total_seconds / 60.0);
         }
+        LOG("\n");
 
         for (int seq = 0; seq < n_seq_batch; seq++) {
             const float * all_logits = num_batches > 1 ? logits.data() : llama_get_logits_ith(ctx, seq*n_ctx + first);
@@ -656,19 +659,18 @@ static results_perplexity perplexity(llama_context * ctx, const gpt_params & par
 
             // perplexity is e^(average negative log-likelihood)
             if (params.ppl_output_type == 0) {
-                printf("[%d]%.4lf,", i + seq + 1, std::exp(nll / count));
+                LOG("[%d]%.4lf,", i + seq + 1, std::exp(nll / count));
             } else {
                 double av = nll/count;
                 double av2 = nll2/count - av*av;
                 if (av2 > 0) av2 = sqrt(av2/(count-1));
-                printf("%8d  %.4lf  %4lf  %4lf\n", i*n_ctx, std::exp(nll / count), av, av2);
+                LOG("%8d  %.4lf  %4lf  %4lf\n", i*n_ctx, std::exp(nll / count), av, av2);
             }
         }
-        fflush(stdout);
 
         logits.clear();
     }
-    printf("\n");
+    LOG("\n");
 
     nll2 /= count;
     nll /= count;
@@ -676,9 +678,9 @@ static results_perplexity perplexity(llama_context * ctx, const gpt_params & par
     nll2 -= nll * nll;
     if (nll2 > 0) {
         nll2 = sqrt(nll2/(count-1));
-        printf("Final estimate: PPL = %.4lf +/- %.5lf\n", ppl, nll2*ppl);
+        LOG_INF("Final estimate: PPL = %.4lf +/- %.5lf\n", ppl, nll2*ppl);
     } else {
-        printf("Unexpected negative standard deviation of log(prob)\n");
+        LOG_ERR("Unexpected negative standard deviation of log(prob)\n");
     }
 
     llama_batch_free(batch);
@@ -704,7 +706,7 @@ static bool decode_helper(llama_context * ctx, llama_batch & batch, std::vector<
 
         const int ret = llama_decode(ctx, batch_view);
         if (ret != 0) {
-            LOG_TEE("failed to decode the batch, n_batch = %d, ret = %d\n", n_batch, ret);
+            LOG_ERR("failed to decode the batch, n_batch = %d, ret = %d\n", n_batch, ret);
             return false;
         }
 
@@ -790,15 +792,15 @@ static void hellaswag_score(llama_context * ctx, const gpt_params & params) {
     }
 
     if (prompt_lines.size() % 6 != 0) {
-        fprintf(stderr, "%s : number of lines in prompt not a multiple of 6.\n", __func__);
+        LOG_ERR("%s : number of lines in prompt not a multiple of 6.\n", __func__);
         return;
     }
 
     size_t hs_task_count = prompt_lines.size()/6;
-    fprintf(stderr, "%s : loaded %zu tasks from prompt.\n", __func__, hs_task_count);
+    LOG_INF("%s : loaded %zu tasks from prompt.\n", __func__, hs_task_count);
 
     const bool is_spm = llama_vocab_type(llama_get_model(ctx)) == LLAMA_VOCAB_TYPE_SPM;
-    fprintf(stderr, "================================= is_spm = %d\n", is_spm);
+    LOG_INF("================================= is_spm = %d\n", is_spm);
 
     // The tasks should be randomized so the score stabilizes quickly.
     bool randomize_tasks = true;
@@ -825,7 +827,7 @@ static void hellaswag_score(llama_context * ctx, const gpt_params & params) {
         std::vector<llama_token> seq_tokens[4];
     };
 
-    fprintf(stderr, "%s : selecting %zu %s tasks.\n", __func__, hs_task_count, (randomize_tasks?"randomized":"the first")  );
+    LOG_INF("%s : selecting %zu %s tasks.\n", __func__, hs_task_count, (randomize_tasks?"randomized":"the first")  );
 
     // Select and read data from prompt lines
     std::vector<hs_data_t> hs_data(hs_task_count);
@@ -871,9 +873,9 @@ static void hellaswag_score(llama_context * ctx, const gpt_params & params) {
         }
     }
 
-    fprintf(stderr, "%s : calculating hellaswag score over selected tasks.\n", __func__);
+    LOG_INF("%s : calculating hellaswag score over selected tasks.\n", __func__);
 
-    printf("\ntask\tacc_norm\n");
+    LOG("\ntask\tacc_norm\n");
 
     double acc = 0.0f;
 
@@ -941,7 +943,7 @@ static void hellaswag_score(llama_context * ctx, const gpt_params & params) {
         }
 
         if (i0 == i1) {
-            fprintf(stderr, "%s : task %zu does not fit in the context window\n", __func__, i0);
+            LOG_ERR("%s : task %zu does not fit in the context window\n", __func__, i0);
             return;
         }
 
@@ -949,7 +951,7 @@ static void hellaswag_score(llama_context * ctx, const gpt_params & params) {
 
         // decode all tasks [i0, i1)
         if (!decode_helper(ctx, batch, batch_logits, n_batch, n_vocab)) {
-            fprintf(stderr, "%s: llama_decode() failed\n", __func__);
+            LOG_ERR("%s: llama_decode() failed\n", __func__);
             return;
         }
 
@@ -999,7 +1001,7 @@ static void hellaswag_score(llama_context * ctx, const gpt_params & params) {
                 }
             }
 
-            //printf("max logprob ending idx %lu, gold ending idx %lu\n", ending_logprob_max_idx, hs_cur.gold_ending_idx);
+            //LOG("max logprob ending idx %lu, gold ending idx %lu\n", ending_logprob_max_idx, hs_cur.gold_ending_idx);
 
             // If the gold ending got the maximum logprobe add one accuracy point
             if (ending_logprob_max_idx == hs_cur.gold_ending_idx) {
@@ -1007,8 +1009,7 @@ static void hellaswag_score(llama_context * ctx, const gpt_params & params) {
             }
 
             // Print the accumulated accuracy mean x 100
-            printf("%zu\t%.8lf\n", i + 1, acc/double(i + 1)*100.0);
+            LOG("%zu\t%.8lf\n", i + 1, acc/double(i + 1)*100.0);
-            fflush(stdout);
         }
 
         i0 = i1 - 1;
@@ -1016,7 +1017,7 @@ static void hellaswag_score(llama_context * ctx, const gpt_params & params) {
 
     llama_batch_free(batch);
 
-    printf("\n");
+    LOG("\n");
 }
 
 struct winogrande_entry {
@@ -1060,7 +1061,7 @@ static std::vector<winogrande_entry> load_winogrande_from_csv(const std::string
             }
         }
         if (ipos != 4) {
-            printf("%s: failed to find comma separators in <%s>\n", __func__, line.c_str());
+            LOG_ERR("%s: failed to find comma separators in <%s>\n", __func__, line.c_str());
             continue;
         }
         auto sentence = line[comma_pos[0]+1] == '"' ? line.substr(comma_pos[0]+2, comma_pos[1] - comma_pos[0] - 3)
@@ -1074,13 +1075,13 @@ static std::vector<winogrande_entry> load_winogrande_from_csv(const std::string
             if (sentence[where] == '_') break;
         }
         if (where == int(sentence.size())) {
-            printf("%s: no _ in <%s>\n", __func__, sentence.c_str());
+            LOG_ERR("%s: no _ in <%s>\n", __func__, sentence.c_str());
             continue;
         }
         std::istringstream stream(answer.c_str());
         int i_answer; stream >> i_answer;
         if (stream.fail() || i_answer < 1 || i_answer > 2) {
-            printf("%s: failed to parse answer <%s>\n", __func__, answer.c_str());
+            LOG_ERR("%s: failed to parse answer <%s>\n", __func__, answer.c_str());
             continue;
         }
         result.emplace_back();
@@ -1109,14 +1110,14 @@ static void winogrande_score(llama_context * ctx, const gpt_params & params) {
 
     auto data = load_winogrande_from_csv(params.prompt);
     if (data.empty()) {
-        fprintf(stderr, "%s: no tasks\n", __func__);
+        LOG_ERR("%s: no tasks\n", __func__);
         return;
     }
 
-    fprintf(stderr, "%s : loaded %zu tasks from prompt.\n", __func__, data.size());
+    LOG_INF("%s : loaded %zu tasks from prompt.\n", __func__, data.size());
 
     if (params.winogrande_tasks > 0 && params.winogrande_tasks < data.size()) {
-        fprintf(stderr, "%s : selecting %zu random tasks\n", __func__, params.winogrande_tasks);
+        LOG_INF("%s : selecting %zu random tasks\n", __func__, params.winogrande_tasks);
         std::mt19937 rng(1);
         std::vector<int> aux(data.size());
         for (int i = 0; i < int(data.size()); ++i) {
@@ -1134,7 +1135,7 @@ static void winogrande_score(llama_context * ctx, const gpt_params & params) {
         data = std::move(selected);
     }
 
-    fprintf(stderr, "%s : tokenizing selected tasks\n", __func__);
+    LOG_INF("%s : tokenizing selected tasks\n", __func__);
 
     for (auto & task : data) {
         task.seq_tokens[0] = ::llama_tokenize(ctx, task.first + task.choices[0] + task.second, true);
@@ -1157,7 +1158,7 @@ static void winogrande_score(llama_context * ctx, const gpt_params & params) {
         task.n_base2 = ::llama_tokenize(ctx, task.first + task.choices[1], true).size();
     }
 
-    fprintf(stderr, "%s : calculating winogrande score over selected tasks.\n", __func__);
+    LOG_INF("%s : calculating winogrande score over selected tasks.\n", __func__);
 
     const int n_vocab = llama_n_vocab(llama_get_model(ctx));
     const int n_ctx   = llama_n_ctx(ctx);
@@ -1218,7 +1219,7 @@ static void winogrande_score(llama_context * ctx, const gpt_params & params) {
         }
 
         if (i0 == i1) {
-            fprintf(stderr, "%s : task %zu does not fit in the context window\n", __func__, i0);
+            LOG_ERR("%s : task %zu does not fit in the context window\n", __func__, i0);
             return;
         }
 
@@ -1226,7 +1227,7 @@ static void winogrande_score(llama_context * ctx, const gpt_params & params) {
 
         // decode all tasks [i0, i1)
         if (!decode_helper(ctx, batch, batch_logits, n_batch, n_vocab)) {
-            fprintf(stderr, "%s: llama_decode() failed\n", __func__);
+            LOG_ERR("%s: llama_decode() failed\n", __func__);
             return;
         }
 
@@ -1286,20 +1287,20 @@ static void winogrande_score(llama_context * ctx, const gpt_params & params) {
             ++n_done;
 
             // print the accumulated accuracy mean x 100
-            printf("%zu\t%.4lf\t%10.6f  %10.6f  %d  %d\n", i+1, 100.0 * n_correct/n_done, score_1st, score_2nd, result, task.answer);
+            LOG("%zu\t%.4lf\t%10.6f  %10.6f  %d  %d\n", i+1, 100.0 * n_correct/n_done, score_1st, score_2nd, result, task.answer);
-            fflush(stdout);
         }
 
         i0 = i1 - 1;
     }
 
-    printf("\n");
+    LOG("\n");
 
     if (n_done < 100) return;
 
     const float p = 1.f*n_correct/n_done;
     const float sigma = 100.f*sqrt(p*(1-p)/(n_done-1));
-    printf("Final Winogrande score(%d tasks): %.4lf +/- %.4lf\n", n_done, 100*p, sigma);
+
+    LOG_INF("Final Winogrande score(%d tasks): %.4lf +/- %.4lf\n", n_done, 100*p, sigma);
 }
 
 static bool deserialize_string(std::istream & in, std::string & str) {
@@ -1348,7 +1349,7 @@ struct multiple_choice_task {
 static bool multiple_choice_prepare_one_task(llama_context * ctx, multiple_choice_task& task, bool log_error) {
     if (task.question.empty() || task.mc1.answers.empty()) {
         if (log_error) {
-            printf("%s: found bad task with empty question and/or answers\n", __func__);
+            LOG_ERR("%s: found bad task with empty question and/or answers\n", __func__);
         }
         return false;
     }
@@ -1356,7 +1357,7 @@ static bool multiple_choice_prepare_one_task(llama_context * ctx, multiple_choic
     for (auto& answer : task.mc1.answers) {
         if (answer.empty()) {
             if (log_error) {
-                printf("%s: found empty answer\n", __func__);
+                LOG_ERR("%s: found empty answer\n", __func__);
             }
             return false;
         }
@@ -1410,14 +1411,14 @@ static void multiple_choice_score(llama_context * ctx, const gpt_params & params
     uint32_t n_task;
     strstream.read((char *)&n_task, sizeof(n_task));
     if (strstream.fail() || n_task == 0) {
-        printf("%s: no tasks\n", __func__);
+        LOG_ERR("%s: no tasks\n", __func__);
         return;
     }
-    printf("%s: there are %u tasks in prompt\n", __func__, n_task);
+    LOG_INF("%s: there are %u tasks in prompt\n", __func__, n_task);
     std::vector<uint32_t> task_pos(n_task);
     strstream.read((char *)task_pos.data(), task_pos.size()*sizeof(uint32_t));
     if (strstream.fail()) {
-        printf("%s: failed to read task positions from prompt\n", __func__);
+        LOG_ERR("%s: failed to read task positions from prompt\n", __func__);
         return;
     }
 
@@ -1425,21 +1426,21 @@ static void multiple_choice_score(llama_context * ctx, const gpt_params & params
     if (params.multiple_choice_tasks == 0 || params.multiple_choice_tasks >= (size_t)n_task) {
         // Use all tasks
         tasks.resize(n_task);
-        printf("%s: reading tasks", __func__);
+        LOG_INF("%s: reading tasks", __func__);
         int n_dot = std::max((int) n_task/100, 1);
         int i = 0;
         for (auto& task : tasks) {
             ++i;
             if (!task.deserialize(strstream)) {
-                printf("%s: failed to read task %d of %u\n", __func__, i, n_task);
+                LOG_ERR("%s: failed to read task %d of %u\n", __func__, i, n_task);
                 return;
             }
-            if (i%n_dot == 0) printf(".");
+            if (i%n_dot == 0) LOG(".");
         }
-        printf("done\n");
+        LOG("done\n");
     }
     else {
-        printf("%s: selecting %zu random tasks from %u tasks available\n", __func__, params.multiple_choice_tasks, n_task);
+        LOG_INF("%s: selecting %zu random tasks from %u tasks available\n", __func__, params.multiple_choice_tasks, n_task);
         std::mt19937 rng(1);
         std::vector<int> aux(n_task);
         for (uint32_t i = 0; i < n_task; ++i) aux[i] = i;
@@ -1452,18 +1453,16 @@ static void multiple_choice_score(llama_context * ctx, const gpt_params & params
             aux.pop_back();
             strstream.seekg(task_pos[idx], std::ios::beg);
             if (!task.deserialize(strstream)) {
-                printf("%s: failed to read task %d at position %u\n", __func__, idx, task_pos[idx]);
+                LOG_ERR("%s: failed to read task %d at position %u\n", __func__, idx, task_pos[idx]);
                 return;
             }
         }
         n_task = params.multiple_choice_tasks;
     }
 
-    printf("%s: preparing task data", __func__);
+    LOG_INF("%s: preparing task data", __func__);
-    fflush(stdout);
     if (n_task > 500) {
-        printf("...");
+        LOG("...");
-        fflush(stdout);
         std::atomic<int> counter(0);
         std::atomic<int> n_bad(0);
         auto prepare = [&counter, &n_bad, &tasks, ctx] () {
@@ -1487,11 +1486,10 @@ static void multiple_choice_score(llama_context * ctx, const gpt_params & params
         for (auto& w : workers) w = std::thread(prepare);
         prepare();
         for (auto& w : workers) w.join();
-        printf("done\n");
+        LOG("done\n");
-        fflush(stdout);
         int nbad = n_bad;
         if (nbad > 0) {
-            printf("%s: found %d malformed tasks\n", __func__, nbad);
+            LOG_ERR("%s: found %d malformed tasks\n", __func__, nbad);
             return;
         }
     } else {
@@ -1503,16 +1501,15 @@ static void multiple_choice_score(llama_context * ctx, const gpt_params & params
                 return;
             }
             if (i_task%n_dot == 0) {
-                printf(".");
+                LOG(".");
-                fflush(stdout);
             }
         }
-        printf("done\n");
+        LOG("done\n");
     }
 
-    printf("%s : calculating TruthfulQA score over %zu tasks.\n", __func__, tasks.size());
+    LOG_INF("%s : calculating TruthfulQA score over %zu tasks.\n", __func__, tasks.size());
 
-    printf("\ntask\tacc_norm\n");
+    LOG("\ntask\tacc_norm\n");
 
     const int n_vocab = llama_n_vocab(llama_get_model(ctx));
     const int n_ctx   = llama_n_ctx(ctx);
@@ -1591,7 +1588,7 @@ static void multiple_choice_score(llama_context * ctx, const gpt_params & params
         }
 
         if (i0 == i1) {
-            fprintf(stderr, "%s : task %zu does not fit in the context window\n", __func__, i0);
+            LOG_ERR("%s : task %zu does not fit in the context window\n", __func__, i0);
             return;
         }
 
@@ -1599,7 +1596,7 @@ static void multiple_choice_score(llama_context * ctx, const gpt_params & params
 
         // decode all tasks [i0, i1)
         if (!decode_helper(ctx, batch, batch_logits, n_batch, n_vocab)) {
-            fprintf(stderr, "%s: llama_decode() failed\n", __func__);
+            LOG_ERR("%s: llama_decode() failed\n", __func__);
             return;
         }
 
@@ -1623,13 +1620,13 @@ static void multiple_choice_score(llama_context * ctx, const gpt_params & params
         // compute the logprobs for each ending of the decoded tasks
         for (size_t i = i0; i < i1; ++i) {
             auto & cur_task = tasks[i];
-            //printf("==== Evaluating <%s> with correct answer ", cur_task.question.c_str());
+            //LOG("==== Evaluating <%s> with correct answer ", cur_task.question.c_str());
             //for (int j = 0; j < int(cur_task.mc1.labels.size()); ++j) {
             //    if (cur_task.mc1.labels[j] == 1) {
-            //        printf("%d", j+1);
+            //        LOG("%d", j+1);
             //    }
             //}
-            //printf("\n    common_prefix: %zu\n", cur_task.common_prefix);
+            //LOG("\n    common_prefix: %zu\n", cur_task.common_prefix);
 
             // get the logits of the last token of the common prefix
             std::memcpy(tok_logits.data(), batch_logits.data() + n_vocab*cur_task.i_logits, n_vocab*sizeof(float));
@@ -1641,13 +1638,13 @@ static void multiple_choice_score(llama_context * ctx, const gpt_params & params
                 size_t count = 1;
                 float  log_prob  = std::log(first_probs[cur_task.seq_tokens[s][cur_task.common_prefix]]);
                 for (size_t j = cur_task.common_prefix; j < cur_task.seq_tokens[s].size() - 1; j++) {
-                    //printf("        %zu  %g\n", ir, eval_results[ir]);
+                    //LOG("        %zu  %g\n", ir, eval_results[ir]);
                     ++count;
                     log_prob += eval_results[ir++];
                 }
                 cur_task.log_probs[s] = log_prob / count;
-                //printf("        Final: %g\n", log_prob / count);
+                //LOG("        Final: %g\n", log_prob / count);
-                //printf("    <%s> : %g\n", cur_task.mc1.answers[s].c_str(), log_prob/count);
+                //LOG("    <%s> : %g\n", cur_task.mc1.answers[s].c_str(), log_prob/count);
             }
 
             // Find the ending with maximum logprob
@@ -1667,8 +1664,7 @@ static void multiple_choice_score(llama_context * ctx, const gpt_params & params
             ++n_done;
 
             // Print the accumulated accuracy mean x 100
-            printf("%d\t%.8lf\n", n_done, 100.*n_correct/n_done);
+            LOG("%d\t%.8lf\n", n_done, 100.*n_correct/n_done);
-            fflush(stdout);
         }
 
         i0 = i1 - 1;
@@ -1680,29 +1676,30 @@ static void multiple_choice_score(llama_context * ctx, const gpt_params & params
 
     float p = 1.f*n_correct/n_done;
     float sigma = sqrt(p*(1-p)/(n_done-1));
-    printf("\n Final result: %.4f +/- %.4f\n", 100.f*p, 100.f*sigma);
+    LOG("\n");
+    LOG_INF("Final result: %.4f +/- %.4f\n", 100.f*p, 100.f*sigma);
     p = 1.f*n_done/n_tot_answers;
     sigma = sqrt(p*(1-p)/(n_done-1));
-    printf("Random chance: %.4f +/- %.4f\n", 100.f*p, 100.f*sigma);
+    LOG_INF("Random chance: %.4f +/- %.4f\n", 100.f*p, 100.f*sigma);
 
-    printf("\n");
+    LOG_INF("\n");
 }
 
 static void kl_divergence(llama_context * ctx, const gpt_params & params) {
     if (params.logits_file.empty()) {
-        fprintf(stderr, "%s: you must provide a name of a file containing the log probabilities of the base model\n", __func__);
+        LOG_ERR("%s: you must provide a name of a file containing the log probabilities of the base model\n", __func__);
         return;
     }
     std::ifstream in(params.logits_file.c_str(), std::ios::binary);
     if (!in) {
-        fprintf(stderr, "%s: failed to open %s\n", __func__, params.logits_file.c_str());
+        LOG_ERR("%s: failed to open %s\n", __func__, params.logits_file.c_str());
         return;
     }
     {
         char check[9]; check[8] = 0;
         in.read(check, 8);
         if (in.fail() || strncmp("_logits_", check, 8) != 0) {
-            fprintf(stderr, "%s: %s does not look like a file containing log-probabilities\n", __func__, params.logits_file.c_str());
+            LOG_ERR("%s: %s does not look like a file containing log-probabilities\n", __func__, params.logits_file.c_str());
             return;
         }
     }
@@ -1710,7 +1707,7 @@ static void kl_divergence(llama_context * ctx, const gpt_params & params) {
     uint32_t n_ctx;
     in.read((char *)&n_ctx, sizeof(n_ctx));
     if (n_ctx > llama_n_ctx(ctx)) {
-        fprintf(stderr, "%s: %s has been computed with %u, while the current context is %d. Increase it with -c and retry\n",
+        LOG_ERR("%s: %s has been computed with %u, while the current context is %d. Increase it with -c and retry\n",
                 __func__, params.logits_file.c_str(), n_ctx, params.n_ctx);
     }
 
@@ -1718,16 +1715,16 @@ static void kl_divergence(llama_context * ctx, const gpt_params & params) {
     in.read((char *)&n_vocab, sizeof(n_vocab));
     in.read((char *)&n_chunk, sizeof(n_chunk));
     if (in.fail()) {
-        fprintf(stderr, "%s: failed reading n_vocab, n_chunk from %s\n", __func__, params.logits_file.c_str());
+        LOG_ERR("%s: failed reading n_vocab, n_chunk from %s\n", __func__, params.logits_file.c_str());
         return;
     }
     if (n_vocab != llama_n_vocab(llama_get_model(ctx))) {
-        fprintf(stderr, "%s: inconsistent vocabulary (%d vs %d)\n", __func__, n_vocab, llama_n_vocab(llama_get_model(ctx)));
+        LOG_ERR("%s: inconsistent vocabulary (%d vs %d)\n", __func__, n_vocab, llama_n_vocab(llama_get_model(ctx)));
     }
 
     std::vector<llama_token> tokens(n_ctx * n_chunk);
     if (in.read((char *)tokens.data(), tokens.size()*sizeof(tokens[0])).fail()) {
-        fprintf(stderr, "%s: failed reading evaluation tokens from %s\n", __func__, params.logits_file.c_str());
+        LOG_ERR("%s: failed reading evaluation tokens from %s\n", __func__, params.logits_file.c_str());
         return;
     }
 
@@ -1776,7 +1773,7 @@ static void kl_divergence(llama_context * ctx, const gpt_params & params) {
         const auto t_start = std::chrono::high_resolution_clock::now();
 
         if (in.read((char *)log_probs_uint16.data(), log_probs_uint16.size()*sizeof(uint16_t)).fail()) {
-            fprintf(stderr, "%s: failed reading log-probs for chunk %d\n", __func__, i);
+            LOG_ERR("%s: failed reading log-probs for chunk %d\n", __func__, i);
             return;
         }
 
@@ -1797,7 +1794,7 @@ static void kl_divergence(llama_context * ctx, const gpt_params & params) {
 
             // TODO: use llama_batch.logits instead of relying on logits_all == true
             if (llama_decode(ctx, llama_batch_get_one(tokens.data() + batch_start, batch_size, j * n_batch, 0))) {
-                fprintf(stderr, "%s : failed to eval\n", __func__);
+                LOG_ERR("%s : failed to eval\n", __func__);
                 return;
             }
 
@@ -1814,16 +1811,16 @@ static void kl_divergence(llama_context * ctx, const gpt_params & params) {
 
         if (i == 0) {
             const float t_total = std::chrono::duration<float>(t_end - t_start).count();
-            fprintf(stderr, "%s: %.2f seconds per pass - ETA ", __func__, t_total);
+            LOG_INF("%s: %.2f seconds per pass - ETA ", __func__, t_total);
             int total_seconds = (int)(t_total * n_chunk);
             if (total_seconds >= 60*60) {
-                fprintf(stderr, "%d hours ", total_seconds / (60*60));
+                LOG("%d hours ", total_seconds / (60*60));
                 total_seconds = total_seconds % (60*60);
             }
-            fprintf(stderr, "%.2f minutes\n", total_seconds / 60.0);
+            LOG("%.2f minutes\n", total_seconds / 60.0);
-
-            printf("\nchunk             PPL               ln(PPL(Q)/PPL(base))          KL Divergence              Δp RMS            Same top p\n");
         }
+        LOG("\n");
+        LOG("chunk             PPL               ln(PPL(Q)/PPL(base))          KL Divergence              Δp RMS            Same top p\n");
 
         const int first = n_ctx/2;
         const float * all_logits = num_batches > 1 ? logits.data() : llama_get_logits(ctx);
@@ -1832,79 +1829,77 @@ static void kl_divergence(llama_context * ctx, const gpt_params & params) {
         p_diff_ptr += n_ctx - 1 - first;
         kld_ptr    += n_ctx - 1 - first;
 
-        printf("%4d", i+1);
+        LOG("%4d", i+1);
 
         auto log_ppl = mean_and_uncertainty(kld.sum_nll, kld.sum_nll2, kld.count);
         const double ppl_val = exp(log_ppl.first);
         const double ppl_unc = ppl_val * log_ppl.second; // ppl_unc = sqrt( (dexp(x) / dx) ** 2 * log_ppl.second ** 2 )
-        printf("    %9.4lf ± %9.4lf", ppl_val, ppl_unc);
+        LOG("    %9.4lf ± %9.4lf", ppl_val, ppl_unc);
 
         auto log_ppl_base = mean_and_uncertainty(kld.sum_nll_base, kld.sum_nll_base2, kld.count);
         const double log_ppl_cov = covariance(kld.sum_nll, kld.sum_nll_base, kld.sum_nll_nll_base, kld.count);
         const double log_ppl_ratio_val = log_ppl.first - log_ppl_base.first;
         const double log_ppl_ratio_unc = sqrt(log_ppl.second*log_ppl.second + log_ppl_base.second*log_ppl_base.second - 2.0*log_ppl_cov);
-        printf("    %10.5lf ± %10.5lf", log_ppl_ratio_val, log_ppl_ratio_unc);
+        LOG("    %10.5lf ± %10.5lf", log_ppl_ratio_val, log_ppl_ratio_unc);
 
         auto kl_div = mean_and_uncertainty(kld.sum_kld, kld.sum_kld2, kld.count);
-        printf("    %10.5lf ± %10.5lf", kl_div.first, kl_div.second);
+        LOG("    %10.5lf ± %10.5lf", kl_div.first, kl_div.second);
 
         auto p_diff_mse   = mean_and_uncertainty(kld.sum_p_diff2, kld.sum_p_diff4, kld.count);
         const double p_diff_rms_val = sqrt(p_diff_mse.first);
         const double p_diff_rms_unc = 0.5/p_diff_rms_val * p_diff_mse.second;
-        printf("    %6.3lf ± %6.3lf %%", 100.0*p_diff_rms_val, 100.0*p_diff_rms_unc);
+        LOG("    %6.3lf ± %6.3lf %%", 100.0*p_diff_rms_val, 100.0*p_diff_rms_unc);
 
         double p_top_val = 1.*kld.n_same_top/kld.count;
         double p_top_unc = sqrt(p_top_val*(1 - p_top_val)/(kld.count - 1));
-        printf("    %6.3lf ± %6.3lf %%", 100.0*p_top_val, 100.0*p_top_unc);
+        LOG("    %6.3lf ± %6.3lf %%", 100.0*p_top_val, 100.0*p_top_unc);
 
-        printf("\n");
+        LOG("\n");
-
-        fflush(stdout);
 
         logits.clear();
     }
-    printf("\n");
+    LOG("\n");
 
     if (kld.count < 100) return; // we do not wish to do statistics on so few values
 
     std::sort(kld_values.begin(), kld_values.end());
     std::sort(p_diff_values.begin(), p_diff_values.end());
 
-    printf("====== Perplexity statistics ======\n");
+    LOG("====== Perplexity statistics ======\n");
 
     auto log_ppl = mean_and_uncertainty(kld.sum_nll, kld.sum_nll2, kld.count);
     const double ppl_val = exp(log_ppl.first);
     const double ppl_unc = ppl_val * log_ppl.second; // ppl_unc = sqrt( (dexp(x) / dx) ** 2 * log_ppl.second ** 2 )
-    printf("Mean PPL(Q)                   : %10.6lf ± %10.6lf\n", ppl_val, ppl_unc);
+    LOG("Mean PPL(Q)                   : %10.6lf ± %10.6lf\n", ppl_val, ppl_unc);
 
     auto log_ppl_base = mean_and_uncertainty(kld.sum_nll_base, kld.sum_nll_base2, kld.count);
     const double ppl_base_val = exp(log_ppl_base.first);
     const double ppl_base_unc = ppl_base_val * log_ppl_base.second; // ppl_base_unc = sqrt( (dexp(x) / dx) ** 2 * log_ppl_base.second ** 2 )
-    printf("Mean PPL(base)                : %10.6lf ± %10.6lf\n", ppl_base_val, ppl_base_unc);
+    LOG("Mean PPL(base)                : %10.6lf ± %10.6lf\n", ppl_base_val, ppl_base_unc);
 
     const double log_ppl_cov = covariance(kld.sum_nll, kld.sum_nll_base, kld.sum_nll_nll_base, kld.count);
-    // printf("Cov(ln(PPL(Q)), ln(PPL(base))): %10.6lf\n", log_ppl_cov);
+    // LOG("Cov(ln(PPL(Q)), ln(PPL(base))): %10.6lf\n", log_ppl_cov);
     const double log_ppl_cor = log_ppl_cov / (log_ppl.second*log_ppl_base.second);
-    printf("Cor(ln(PPL(Q)), ln(PPL(base))): %6.2lf%%\n", 100.0*log_ppl_cor);
+    LOG("Cor(ln(PPL(Q)), ln(PPL(base))): %6.2lf%%\n", 100.0*log_ppl_cor);
 
     const double log_ppl_ratio_val = log_ppl.first - log_ppl_base.first;
     const double log_ppl_ratio_unc = sqrt(log_ppl.second*log_ppl.second + log_ppl_base.second*log_ppl_base.second - 2.0*log_ppl_cov);
-    printf("Mean ln(PPL(Q)/PPL(base))     : %10.6lf ± %10.6lf\n", log_ppl_ratio_val, log_ppl_ratio_unc);
+    LOG("Mean ln(PPL(Q)/PPL(base))     : %10.6lf ± %10.6lf\n", log_ppl_ratio_val, log_ppl_ratio_unc);
 
     const double ppl_ratio_val = exp(log_ppl_ratio_val);
     const double ppl_ratio_unc = ppl_ratio_val * log_ppl_ratio_unc; // ppl_ratio_unc = sqrt( (dexp(x) / dx) ** 2 * log_ppl_ratio.second ** 2 )
-    printf("Mean PPL(Q)/PPL(base)         : %10.6lf ± %10.6lf\n", ppl_ratio_val, ppl_ratio_unc);
+    LOG("Mean PPL(Q)/PPL(base)         : %10.6lf ± %10.6lf\n", ppl_ratio_val, ppl_ratio_unc);
 
     const double ppl_cov = ppl_val * ppl_base_val * log_ppl_cov;
     const double ppl_diff_val = ppl_val - ppl_base_val;
     const double ppl_diff_unc = sqrt(ppl_unc*ppl_unc + ppl_base_unc*ppl_base_unc - 2.0*ppl_cov);
-    printf("Mean PPL(Q)-PPL(base)         : %10.6lf ± %10.6lf\n", ppl_diff_val, ppl_diff_unc);
+    LOG("Mean PPL(Q)-PPL(base)         : %10.6lf ± %10.6lf\n", ppl_diff_val, ppl_diff_unc);
 
-    printf("\n");
+    LOG("\n");
 
-    printf("====== KL divergence statistics ======\n");
+    LOG("====== KL divergence statistics ======\n");
     auto kl_div = mean_and_uncertainty(kld.sum_kld, kld.sum_kld2, kld.count);
-    printf("Mean    KLD: %10.6lf ± %10.6lf\n", kl_div.first, kl_div.second);
+    LOG("Mean    KLD: %10.6lf ± %10.6lf\n", kl_div.first, kl_div.second);
     auto kld_median = kld_values.size()%2 == 0 ? 0.5f*(kld_values[kld_values.size()/2] + kld_values[kld_values.size()/2-1])
                                                : kld_values[kld_values.size()/2];
 
@@ -1916,53 +1911,54 @@ static void kl_divergence(llama_context * ctx, const gpt_params & params) {
         return (1 - p)*values[ip] + p*values[std::min(ip+1, values.size()-1)];
     };
 
-    printf("Maximum KLD: %10.6f\n", kld_values.back());
+    LOG("Maximum KLD: %10.6f\n", kld_values.back());
-    printf("99.9%%   KLD: %10.6f\n", percentile(kld_values, 0.999f));
+    LOG("99.9%%   KLD: %10.6f\n", percentile(kld_values, 0.999f));
-    printf("99.0%%   KLD: %10.6f\n", percentile(kld_values, 0.990f));
+    LOG("99.0%%   KLD: %10.6f\n", percentile(kld_values, 0.990f));
-    printf("99.0%%   KLD: %10.6f\n", percentile(kld_values, 0.990f));
+    LOG("99.0%%   KLD: %10.6f\n", percentile(kld_values, 0.990f));
-    printf("Median  KLD: %10.6f\n", kld_median);
+    LOG("Median  KLD: %10.6f\n", kld_median);
-    printf("10.0%%   KLD: %10.6f\n", percentile(kld_values, 0.100f));
+    LOG("10.0%%   KLD: %10.6f\n", percentile(kld_values, 0.100f));
-    printf(" 5.0%%   KLD: %10.6f\n", percentile(kld_values, 0.050f));
+    LOG(" 5.0%%   KLD: %10.6f\n", percentile(kld_values, 0.050f));
-    printf(" 1.0%%   KLD: %10.6f\n", percentile(kld_values, 0.010f));
+    LOG(" 1.0%%   KLD: %10.6f\n", percentile(kld_values, 0.010f));
-    printf("Minimum KLD: %10.6f\n", kld_values.front());
+    LOG("Minimum KLD: %10.6f\n", kld_values.front());
 
-    printf("\n");
+    LOG("\n");
 
-    printf("====== Token probability statistics ======\n");
+    LOG("====== Token probability statistics ======\n");
 
     auto p_diff = mean_and_uncertainty(kld.sum_p_diff, kld.sum_p_diff2, kld.count);
-    printf("Mean    Δp: %6.3lf ± %5.3lf %%\n",  100.0*p_diff.first, 100.0*p_diff.second);
+    LOG("Mean    Δp: %6.3lf ± %5.3lf %%\n",  100.0*p_diff.first, 100.0*p_diff.second);
 
     auto p_diff_median = p_diff_values.size()%2 == 0 ? 0.5f*(p_diff_values[p_diff_values.size()/2] + p_diff_values[p_diff_values.size()/2-1])
                                                : p_diff_values[p_diff_values.size()/2];
 
-    printf("Maximum Δp: %6.3lf%%\n",  100.0*p_diff_values.back());
+    LOG("Maximum Δp: %6.3lf%%\n",  100.0*p_diff_values.back());
-    printf("99.9%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.999f));
+    LOG("99.9%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.999f));
-    printf("99.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.990f));
+    LOG("99.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.990f));
-    printf("95.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.950f));
+    LOG("95.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.950f));
-    printf("90.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.900f));
+    LOG("90.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.900f));
-    printf("75.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.750f));
+    LOG("75.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.750f));
-    printf("Median  Δp: %6.3lf%%\n",  100.0*p_diff_median);
+    LOG("Median  Δp: %6.3lf%%\n",  100.0*p_diff_median);
-    printf("25.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.250f));
+    LOG("25.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.250f));
-    printf("10.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.100f));
+    LOG("10.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.100f));
-    printf(" 5.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.050f));
+    LOG(" 5.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.050f));
-    printf(" 1.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.010f));
+    LOG(" 1.0%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.010f));
-    printf(" 0.1%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.001f));
+    LOG(" 0.1%%   Δp: %6.3lf%%\n", 100.0*percentile(p_diff_values, 0.001f));
-    printf("Minimum Δp: %6.3lf%%\n",  100.0*p_diff_values.front());
+    LOG("Minimum Δp: %6.3lf%%\n",  100.0*p_diff_values.front());
 
     auto p_diff_mse = mean_and_uncertainty(kld.sum_p_diff2, kld.sum_p_diff4, kld.count);
-    // printf("MSE Δp    : %10.6lf ± %10.6lf\n", p_diff_mse.first, p_diff_mse.second);
+    // LOG("MSE Δp    : %10.6lf ± %10.6lf\n", p_diff_mse.first, p_diff_mse.second);
 
     const double p_diff_rms_val = sqrt(p_diff_mse.first);
     const double p_diff_rms_unc = 0.5/p_diff_rms_val * p_diff_mse.second;
-    printf("RMS Δp    : %6.3lf ± %5.3lf %%\n", 100.0*p_diff_rms_val, 100.0*p_diff_rms_unc);
+    LOG("RMS Δp    : %6.3lf ± %5.3lf %%\n", 100.0*p_diff_rms_val, 100.0*p_diff_rms_unc);
 
     const double same_top_p = 1.0*kld.n_same_top/kld.count;
-    printf("Same top p: %6.3lf ± %5.3lf %%\n", 100.0*same_top_p, 100.0*sqrt(same_top_p*(1.0 - same_top_p)/(kld.count - 1)));
+    LOG("Same top p: %6.3lf ± %5.3lf %%\n", 100.0*same_top_p, 100.0*sqrt(same_top_p*(1.0 - same_top_p)/(kld.count - 1)));
-
 }
 
 int main(int argc, char ** argv) {
+    gpt_init();
+
     gpt_params params;
 
     params.n_ctx = 512;
@@ -1975,7 +1971,7 @@ int main(int argc, char ** argv) {
     const int32_t n_ctx = params.n_ctx;
 
     if (n_ctx <= 0) {
-        fprintf(stderr, "%s: perplexity tool requires '--ctx-size' > 0\n", __func__);
+        LOG_ERR("%s: perplexity tool requires '--ctx-size' > 0\n", __func__);
         return 1;
     }
 
@@ -2000,13 +1996,11 @@ int main(int argc, char ** argv) {
     }
 
     if (params.ppl_stride > 0) {
-        fprintf(stderr, "Will perform strided perplexity calculation -> adjusting context size from %d to %d\n",
+        LOG_INF("Will perform strided perplexity calculation -> adjusting context size from %d to %d\n",
                 params.n_ctx, params.n_ctx + params.ppl_stride/2);
         params.n_ctx += params.ppl_stride/2;
     }
 
-    print_build_info();
-
     llama_backend_init();
     llama_numa_init(params.numa);
 
@@ -2016,21 +2010,21 @@ int main(int argc, char ** argv) {
     llama_model * model = llama_init.model;
     llama_context * ctx = llama_init.context;
     if (model == NULL) {
-        fprintf(stderr, "%s: error: unable to load model\n", __func__);
+        LOG_ERR("%s: unable to load model\n", __func__);
         return 1;
     }
 
     const int n_ctx_train = llama_n_ctx_train(model);
 
     if (params.n_ctx > n_ctx_train) {
-        fprintf(stderr, "%s: warning: model was trained on only %d context tokens (%d specified)\n",
+        LOG_WRN("%s: model was trained on only %d context tokens (%d specified)\n",
                 __func__, n_ctx_train, params.n_ctx);
     }
 
     // print system information
     {
-        fprintf(stderr, "\n");
+        LOG_INF("\n");
-        fprintf(stderr, "%s\n", gpt_params_get_system_info(params).c_str());
+        LOG_INF("%s\n", gpt_params_get_system_info(params).c_str());
     }
 
     struct results_perplexity results;
@@ -2046,8 +2040,9 @@ int main(int argc, char ** argv) {
         results = perplexity(ctx, params, n_ctx);
     }
 
-    LOG_TEE("\n");
+    LOG("\n");
     llama_perf_context_print(ctx);
+
     write_logfile(ctx, params, model, results);
 
     llama_free(ctx);

examples/retrieval/retrieval.cpp

@@ -1,14 +1,16 @@
 #include "arg.h"
 #include "common.h"
+#include "log.h"
 #include "llama.h"
 
 #include <algorithm>
 #include <fstream>
+#include <iostream> // TODO: remove me
 
 static void print_usage(int, char ** argv) {
-    LOG_TEE("\nexample usage:\n");
+    LOG("\nexample usage:\n");
-    LOG_TEE("\n    %s --model ./models/bge-base-en-v1.5-f16.gguf --top-k 3 --context-file README.md --context-file License --chunk-size 100 --chunk-separator .\n", argv[0]);
+    LOG("\n    %s --model ./models/bge-base-en-v1.5-f16.gguf --top-k 3 --context-file README.md --context-file License --chunk-size 100 --chunk-separator .\n", argv[0]);
-    LOG_TEE("\n");
+    LOG("\n");
 }
 
 struct chunk {
@@ -17,7 +19,7 @@ struct chunk {
     // original file position
     size_t filepos;
     // original text data
-    std::string textdata = "";
+    std::string textdata;
     // tokenized text data
     std::vector<llama_token> tokens;
     // embedding
@@ -31,14 +33,14 @@ static std::vector<chunk> chunk_file(const std::string & filename, int chunk_siz
     std::ifstream f(filename.c_str());
 
     if (!f.is_open()) {
-        fprintf(stderr, "Error: could not open file %s\n", filename.c_str());
+        LOG_ERR("could not open file %s\n", filename.c_str());
         return chunks;
     }
 
     chunk current_chunk;
     char buffer[1024];
     int64_t filepos = 0;
-    std::string current = "";
+    std::string current;
     while (f.read(buffer, 1024)) {
         current += std::string(buffer, f.gcount());
         size_t pos;
@@ -84,9 +86,9 @@ static void batch_decode(llama_context * ctx, llama_batch & batch, float * outpu
     llama_kv_cache_clear(ctx);
 
     // run model
-    fprintf(stderr, "%s: n_tokens = %d, n_seq = %d\n", __func__, batch.n_tokens, n_seq);
+    LOG_INF("%s: n_tokens = %d, n_seq = %d\n", __func__, batch.n_tokens, n_seq);
     if (llama_decode(ctx, batch) < 0) {
-        fprintf(stderr, "%s : failed to decode\n", __func__);
+        LOG_ERR("%s : failed to decode\n", __func__);
     }
 
     for (int i = 0; i < batch.n_tokens; i++) {
@@ -99,7 +101,7 @@ static void batch_decode(llama_context * ctx, llama_batch & batch, float * outpu
         if (embd == NULL) {
             embd = llama_get_embeddings_ith(ctx, i);
             if (embd == NULL) {
-                fprintf(stderr, "%s: failed to get embeddings for token %d\n", __func__, i);
+                LOG_ERR("%s: failed to get embeddings for token %d\n", __func__, i);
                 continue;
             }
         }
@@ -110,6 +112,8 @@ static void batch_decode(llama_context * ctx, llama_batch & batch, float * outpu
 }
 
 int main(int argc, char ** argv) {
+    gpt_init();
+
     gpt_params params;
 
     if (!gpt_params_parse(argc, argv, params, LLAMA_EXAMPLE_RETRIEVAL, print_usage)) {
@@ -121,19 +125,17 @@ int main(int argc, char ** argv) {
     params.embedding = true;
 
     if (params.chunk_size <= 0) {
-        fprintf(stderr, "chunk_size must be positive\n");
+        LOG_ERR("chunk_size must be positive\n");
         return 1;
     }
     if (params.context_files.empty()) {
-        fprintf(stderr, "context_files must be specified\n");
+        LOG_ERR("context_files must be specified\n");
         return 1;
     }
 
-    print_build_info();
+    LOG_INF("processing files:\n");
-
-    printf("processing files:\n");
     for (auto & context_file : params.context_files) {
-        printf("%s\n", context_file.c_str());
+        LOG_INF("%s\n", context_file.c_str());
     }
 
     std::vector<chunk> chunks;
@@ -141,7 +143,7 @@ int main(int argc, char ** argv) {
         std::vector<chunk> file_chunk = chunk_file(context_file, params.chunk_size, params.chunk_separator);
         chunks.insert(chunks.end(), file_chunk.begin(), file_chunk.end());
     }
-    printf("Number of chunks: %ld\n", chunks.size());
+    LOG_INF("Number of chunks: %ld\n", chunks.size());
 
     llama_backend_init();
     llama_numa_init(params.numa);
@@ -153,7 +155,7 @@ int main(int argc, char ** argv) {
     llama_context * ctx = llama_init.context;
 
     if (model == NULL) {
-        fprintf(stderr, "%s: error: unable to load model\n", __func__);
+        LOG_ERR("%s: unable to load model\n", __func__);
         return 1;
     }
 
@@ -162,19 +164,19 @@ int main(int argc, char ** argv) {
 
     const enum llama_pooling_type pooling_type = llama_pooling_type(ctx);
     if (pooling_type == LLAMA_POOLING_TYPE_NONE) {
-        fprintf(stderr, "%s: error: pooling type NONE not supported\n", __func__);
+        LOG_ERR("%s: pooling type NONE not supported\n", __func__);
         return 1;
     }
 
     if (n_ctx > n_ctx_train) {
-        fprintf(stderr, "%s: warning: model was trained on only %d context tokens (%d specified)\n",
+        LOG_WRN("%s: warning: model was trained on only %d context tokens (%d specified)\n",
                 __func__, n_ctx_train, n_ctx);
     }
 
     // print system information
     {
-        fprintf(stderr, "\n");
+        LOG_INF("\n");
-        fprintf(stderr, "%s\n", gpt_params_get_system_info(params).c_str());
+        LOG_INF("%s\n", gpt_params_get_system_info(params).c_str());
     }
 
     // max batch size
@@ -185,7 +187,7 @@ int main(int argc, char ** argv) {
     for (auto & chunk : chunks) {
         auto inp = ::llama_tokenize(ctx, chunk.textdata, true, false);
         if (inp.size() > n_batch) {
-            fprintf(stderr, "%s: error: chunk size (%lld) exceeds batch size (%lld), increase batch size and re-run\n",
+            LOG_ERR("%s: chunk size (%lld) exceeds batch size (%lld), increase batch size and re-run\n",
                     __func__, (long long int) inp.size(), (long long int) n_batch);
             return 1;
         }
@@ -199,12 +201,12 @@ int main(int argc, char ** argv) {
     // tokenization stats
     if (params.verbose_prompt) {
         for (int i = 0; i < (int) chunks.size(); i++) {
-            fprintf(stderr, "%s: prompt %d: '%s'\n", __func__, i, chunks[i].textdata.c_str());
+            LOG_INF("%s: prompt %d: '%s'\n", __func__, i, chunks[i].textdata.c_str());
-            fprintf(stderr, "%s: number of tokens in prompt = %zu\n", __func__, chunks[i].tokens.size());
+            LOG_INF("%s: number of tokens in prompt = %zu\n", __func__, chunks[i].tokens.size());
             for (int j = 0; j < (int) chunks[i].tokens.size(); j++) {
-                fprintf(stderr, "%6d -> '%s'\n", chunks[i].tokens[j], llama_token_to_piece(ctx, chunks[i].tokens[j]).c_str());
+                LOG_INF("%6d -> '%s'\n", chunks[i].tokens[j], llama_token_to_piece(ctx, chunks[i].tokens[j]).c_str());
             }
-            fprintf(stderr, "\n\n");
+            LOG_INF("\n\n");
         }
     }
 
@@ -256,7 +258,7 @@ int main(int argc, char ** argv) {
     // start loop, receive query and return top k similar chunks based on cosine similarity
     std::string query;
     while (true) {
-        printf("Enter query: ");
+        LOG("Enter query: ");
         std::getline(std::cin, query);
         std::vector<int32_t> query_tokens = llama_tokenize(ctx, query, true);
 
@@ -280,18 +282,18 @@ int main(int argc, char ** argv) {
                 return a.second > b.second;
             });
 
-            printf("Top %d similar chunks:\n", params.sparams.top_k);
+            LOG("Top %d similar chunks:\n", params.sparams.top_k);
             for (int i = 0; i < std::min(params.sparams.top_k, (int) chunks.size()); i++) {
-                printf("filename: %s\n", chunks[similarities[i].first].filename.c_str());
+                LOG("filename: %s\n", chunks[similarities[i].first].filename.c_str());
-                printf("filepos: %lld\n", (long long int) chunks[similarities[i].first].filepos);
+                LOG("filepos: %lld\n", (long long int) chunks[similarities[i].first].filepos);
-                printf("similarity: %f\n", similarities[i].second);
+                LOG("similarity: %f\n", similarities[i].second);
-                printf("textdata:\n%s\n", chunks[similarities[i].first].textdata.c_str());
+                LOG("textdata:\n%s\n", chunks[similarities[i].first].textdata.c_str());
-                printf("--------------------\n");
+                LOG("--------------------\n");
             }
         }
     }
 
-    LOG_TEE("\n");
+    LOG("\n");
     llama_perf_context_print(ctx);
 
     // clean up

examples/server/README.md

@@ -121,7 +121,6 @@ The project is under active development, and we are [looking for feedback and co
 | `-to, --timeout N` | server read/write timeout in seconds (default: 600) |
 | `--threads-http N` | number of threads used to process HTTP requests (default: -1)<br/>(env: LLAMA_ARG_THREADS_HTTP) |
 | `-spf, --system-prompt-file FNAME` | set a file to load a system prompt (initial prompt of all slots), this is useful for chat applications |
-| `--log-format {text, json}` | log output format: json or text (default: json) |
 | `--metrics` | enable prometheus compatible metrics endpoint (default: disabled)<br/>(env: LLAMA_ARG_ENDPOINT_METRICS) |
 | `--no-slots` | disables slots monitoring endpoint (default: enabled)<br/>(env: LLAMA_ARG_NO_ENDPOINT_SLOTS) |
 | `--slot-save-path PATH` | path to save slot kv cache (default: disabled) |

examples/server/bench/README.md

@@ -40,7 +40,6 @@ server --host localhost --port 8080 \
   --parallel 8 \
   --batch-size 512 \
   --ctx-size 4096 \
-  --log-format text \
   -ngl 33
 ```
 

examples/server/bench/bench.py

@@ -272,7 +272,6 @@ def start_server_background(args):
     server_args.append('--cont-batching')
     server_args.append('--metrics')
     server_args.append('--flash-attn')
-    server_args.extend(['--log-format', "text"])
     args = [str(arg) for arg in [server_path, *server_args]]
     print(f"bench: starting server with: {' '.join(args)}")
     pkwargs = {

examples/server/tests/.gitignore

@@ -0,0 +1 @@
+.venv

examples/server/tests/README.md

@@ -40,7 +40,6 @@ It's possible to override some scenario steps values with environment variables:
 | `PORT`                   | `context.server_port` to set the listening port of the server during scenario, default: `8080` |
 | `LLAMA_SERVER_BIN_PATH`  | to change the server binary path, default: `../../../build/bin/llama-server`                         |
 | `DEBUG`                  | "ON" to enable steps and server verbose mode `--verbose`                                       |
-| `SERVER_LOG_FORMAT_JSON` | if set switch server logs to json format                                                       |
 | `N_GPU_LAYERS`           | number of model layers to offload to VRAM `-ngl --n-gpu-layers`                                |
 
 ### Run @bug, @wip or @wrong_usage annotated scenario

examples/server/tests/features/steps/steps.py

@@ -1370,8 +1370,6 @@ def start_server_background(context):
         server_args.append('--verbose')
     if context.lora_file:
         server_args.extend(['--lora', context.lora_file])
-    if 'SERVER_LOG_FORMAT_JSON' not in os.environ:
-        server_args.extend(['--log-format', "text"])
 
     args = [str(arg) for arg in [context.server_path, *server_args]]
     print(f"bench: starting server with: {' '.join(args)}")

examples/server/utils.hpp

@@ -1,7 +1,8 @@
 #pragma once
 
-#include "llama.h"
 #include "common.h"
+#include "log.h"
+#include "llama.h"
 
 #ifndef NDEBUG
 // crash the server in debug mode, otherwise send an http 500 error
@@ -15,10 +16,10 @@
 #define JSON_ASSERT GGML_ASSERT
 #include "json.hpp"
 
+#include <random>
+#include <sstream>
 #include <string>
 #include <vector>
-#include <sstream>
-#include <random>
 
 #define DEFAULT_OAICOMPAT_MODEL "gpt-3.5-turbo-0613"
 
@@ -35,32 +36,6 @@ enum error_type {
     ERROR_TYPE_NOT_SUPPORTED, // custom error
 };
 
-extern bool server_verbose;
-extern bool server_log_json;
-
-#ifndef SERVER_VERBOSE
-#define SERVER_VERBOSE 1
-#endif
-
-#if SERVER_VERBOSE != 1
-#define LOG_VERBOSE(MSG, ...)
-#else
-#define LOG_VERBOSE(MSG, ...)                                            \
-    do                                                                   \
-    {                                                                    \
-        if (server_verbose)                                              \
-        {                                                                \
-            server_log("VERB", __func__, __LINE__, MSG, __VA_ARGS__); \
-        }                                                                \
-    } while (0)
-#endif
-
-#define LOG_ERROR(  MSG, ...) server_log("ERR",  __func__, __LINE__, MSG, __VA_ARGS__)
-#define LOG_WARNING(MSG, ...) server_log("WARN", __func__, __LINE__, MSG, __VA_ARGS__)
-#define LOG_INFO(   MSG, ...) server_log("INFO", __func__, __LINE__, MSG, __VA_ARGS__)
-
-static inline void server_log(const char * level, const char * function, int line, const char * message, const json & extra);
-
 template <typename T>
 static T json_value(const json & body, const std::string & key, const T & default_value) {
     // Fallback null to default value
@@ -68,9 +43,7 @@ static T json_value(const json & body, const std::string & key, const T & defaul
         try {
             return body.at(key);
         } catch (NLOHMANN_JSON_NAMESPACE::detail::type_error const &) {
-            std::stringstream ss;
+            LOG_WRN("Wrong type supplied for parameter '%s'. Expected '%s', using default value\n", key.c_str(), json(default_value).type_name());
-            ss << "Wrong type supplied for parameter '" << key << "'. Expected '" << json(default_value).type_name() << "', using default value.";
-            LOG_WARNING(ss.str().c_str(), body);
             return default_value;
         }
     } else {
@@ -78,48 +51,6 @@ static T json_value(const json & body, const std::string & key, const T & defaul
     }
 }
 
-static inline void server_log(const char * level, const char * function, int line, const char * message, const json & extra) {
-    std::stringstream ss_tid;
-    ss_tid << std::this_thread::get_id();
-    json log = json{
-        {"tid",       ss_tid.str()},
-        {"timestamp", time(nullptr)},
-    };
-
-    if (server_log_json) {
-        log.merge_patch({
-            {"level",    level},
-            {"function", function},
-            {"line",     line},
-            {"msg",      message},
-        });
-
-        if (!extra.empty()) {
-            log.merge_patch(extra);
-        }
-
-        printf("%s\n", log.dump(-1, ' ', false, json::error_handler_t::replace).c_str());
-    } else {
-        char buf[1024];
-        snprintf(buf, 1024, "%4s [%24s] %s", level, function, message);
-
-        if (!extra.empty()) {
-            log.merge_patch(extra);
-        }
-        std::stringstream ss;
-        ss << buf << " |";
-        for (const auto & el : log.items())
-        {
-            const std::string value = el.value().dump(-1, ' ', false, json::error_handler_t::replace);
-            ss << " " << el.key() << "=" << value;
-        }
-
-        const std::string str = ss.str();
-        printf("%.*s\n", (int)str.size(), str.data());
-    }
-    fflush(stdout);
-}
-
 //
 // chat template utils
 //
@@ -153,8 +84,9 @@ inline std::string format_chat(const struct llama_model * model, const std::stri
         chat.push_back({role, content});
     }
 
-    auto formatted_chat = llama_chat_apply_template(model, tmpl, chat, true);
+    const auto formatted_chat = llama_chat_apply_template(model, tmpl, chat, true);
-    LOG_VERBOSE("formatted_chat", {{"text", formatted_chat.c_str()}});
+    LOG_DBG("formatted_chat: '%s'\n", formatted_chat.c_str());
+
     return formatted_chat;
 }
 
@@ -243,10 +175,7 @@ static std::string random_string() {
 }
 
 static std::string gen_chatcmplid() {
-    std::stringstream chatcmplid;
+    return "chatcmpl-" + random_string();
-    chatcmplid << "chatcmpl-" << random_string();
-
-    return chatcmplid.str();
 }
 
 //
@@ -287,7 +216,7 @@ static size_t find_partial_stop_string(const std::string &stop, const std::strin
     return std::string::npos;
 }
 
-static bool json_is_array_of_numbers(json data) {
+static bool json_is_array_of_numbers(const json & data) {
     if (data.is_array()) {
         for (const auto & e : data) {
             if (!e.is_number()) {
@@ -363,15 +292,13 @@ static json probs_vector_to_json(const llama_context * ctx, const std::vector<co
     return out;
 }
 
-static bool server_sent_event(httplib::DataSink & sink, const char * event, json & data) {
+static bool server_sent_event(httplib::DataSink & sink, const char * event, const json & data) {
     const std::string str =
         std::string(event) + ": " +
         data.dump(-1, ' ', false, json::error_handler_t::replace) +
-        "\n\n";
+        "\n\n"; // note: these newlines are important (not sure why though, if you know, add a comment to explain)
 
-    LOG_VERBOSE("data stream", {
+    LOG_DBG("data stream, to_send: %s", str.c_str());
-        { "to_send", str }
-    });
 
     return sink.write(str.c_str(), str.size());
 }
@@ -425,7 +352,7 @@ static json oaicompat_completion_params_parse(
 
     // Params supported by OAI but unsupported by llama.cpp
     static const std::vector<std::string> unsupported_params { "tools", "tool_choice" };
-    for (auto & param : unsupported_params) {
+    for (const auto & param : unsupported_params) {
         if (body.contains(param)) {
             throw std::runtime_error("Unsupported param: " + param);
         }
@@ -444,7 +371,7 @@ static json oaicompat_completion_params_parse(
     return llama_params;
 }
 
-static json format_final_response_oaicompat(const json & request, json result, const std::string & completion_id, bool streaming = false) {
+static json format_final_response_oaicompat(const json & request, const json & result, const std::string & completion_id, bool streaming = false, bool verbose = false) {
     bool stopped_word        = result.count("stopped_word") != 0;
     bool stopped_eos         = json_value(result, "stopped_eos", false);
     int num_tokens_predicted = json_value(result, "tokens_predicted", 0);
@@ -481,7 +408,7 @@ static json format_final_response_oaicompat(const json & request, json result, c
         {"id", completion_id}
     };
 
-    if (server_verbose) {
+    if (verbose) {
         res["__verbose"] = result;
     }
 
@@ -493,7 +420,7 @@ static json format_final_response_oaicompat(const json & request, json result, c
 }
 
 // return value is vector as there is one case where we might need to generate two responses
-static std::vector<json> format_partial_response_oaicompat(json result, const std::string & completion_id) {
+static std::vector<json> format_partial_response_oaicompat(const json & result, const std::string & completion_id) {
     if (!result.contains("model") || !result.contains("oaicompat_token_ctr")) {
         return std::vector<json>({result});
     }
@@ -595,7 +522,7 @@ static std::vector<json> format_partial_response_oaicompat(json result, const st
 static json format_embeddings_response_oaicompat(const json & request, const json & embeddings) {
     json data = json::array();
     int i = 0;
-    for (auto & elem : embeddings) {
+    for (const auto & elem : embeddings) {
         data.push_back(json{
             {"embedding", json_value(elem, "embedding", json::array())},
             {"index",     i++},

examples/simple/simple.cpp

@@ -1,19 +1,19 @@
 #include "arg.h"
 #include "common.h"
+#include "log.h"
 #include "llama.h"
 
-#include <cmath>
-#include <cstdio>
-#include <string>
 #include <vector>
 
 static void print_usage(int, char ** argv) {
-    LOG_TEE("\nexample usage:\n");
+    LOG("\nexample usage:\n");
-    LOG_TEE("\n    %s -m model.gguf -p \"Hello my name is\" -n 32\n", argv[0]);
+    LOG("\n    %s -m model.gguf -p \"Hello my name is\" -n 32\n", argv[0]);
-    LOG_TEE("\n");
+    LOG("\n");
 }
 
 int main(int argc, char ** argv) {
+    gpt_init();
+
     gpt_params params;
 
     params.prompt = "Hello my name is";
@@ -69,25 +69,24 @@ int main(int argc, char ** argv) {
     const int n_ctx    = llama_n_ctx(ctx);
     const int n_kv_req = tokens_list.size() + (n_predict - tokens_list.size());
 
-    LOG_TEE("\n%s: n_predict = %d, n_ctx = %d, n_kv_req = %d\n", __func__, n_predict, n_ctx, n_kv_req);
+    LOG("\n");
+    LOG_INF("%s: n_predict = %d, n_ctx = %d, n_kv_req = %d\n", __func__, n_predict, n_ctx, n_kv_req);
 
     // make sure the KV cache is big enough to hold all the prompt and generated tokens
     if (n_kv_req > n_ctx) {
-        LOG_TEE("%s: error: n_kv_req > n_ctx, the required KV cache size is not big enough\n", __func__);
+        LOG_ERR("%s: error: n_kv_req > n_ctx, the required KV cache size is not big enough\n", __func__);
-        LOG_TEE("%s:        either reduce n_predict or increase n_ctx\n", __func__);
+        LOG_ERR("%s:        either reduce n_predict or increase n_ctx\n", __func__);
         return 1;
     }
 
     // print the prompt token-by-token
 
-    fprintf(stderr, "\n");
+    LOG("\n");
 
     for (auto id : tokens_list) {
-        fprintf(stderr, "%s", llama_token_to_piece(ctx, id).c_str());
+        LOG("%s", llama_token_to_piece(ctx, id).c_str());
     }
 
-    fflush(stderr);
-
     // create a llama_batch with size 512
     // we use this object to submit token data for decoding
 
@@ -102,7 +101,7 @@ int main(int argc, char ** argv) {
     batch.logits[batch.n_tokens - 1] = true;
 
     if (llama_decode(ctx, batch) != 0) {
-        LOG_TEE("%s: llama_decode() failed\n", __func__);
+        LOG("%s: llama_decode() failed\n", __func__);
         return 1;
     }
 
@@ -116,16 +115,16 @@ int main(int argc, char ** argv) {
     while (n_cur <= n_predict) {
         // sample the next token
         {
-            const llama_token new_token_id = llama_sampler_sample(smpl, ctx, batch.n_tokens - 1);
+            const llama_token new_token_id = llama_sampler_sample(smpl, ctx, -1);
 
             // is it an end of generation?
             if (llama_token_is_eog(model, new_token_id) || n_cur == n_predict) {
-                LOG_TEE("\n");
+                LOG("\n");
 
                 break;
             }
 
-            LOG_TEE("%s", llama_token_to_piece(ctx, new_token_id).c_str());
+            LOG("%s", llama_token_to_piece(ctx, new_token_id).c_str());
             fflush(stdout);
 
             // prepare the next batch
@@ -141,23 +140,23 @@ int main(int argc, char ** argv) {
 
         // evaluate the current batch with the transformer model
         if (llama_decode(ctx, batch)) {
-            fprintf(stderr, "%s : failed to eval, return code %d\n", __func__, 1);
+            LOG_ERR("%s : failed to eval, return code %d\n", __func__, 1);
             return 1;
         }
     }
 
-    LOG_TEE("\n");
+    LOG("\n");
 
     const auto t_main_end = ggml_time_us();
 
-    LOG_TEE("%s: decoded %d tokens in %.2f s, speed: %.2f t/s\n",
+    LOG_INF("%s: decoded %d tokens in %.2f s, speed: %.2f t/s\n",
             __func__, n_decode, (t_main_end - t_main_start) / 1000000.0f, n_decode / ((t_main_end - t_main_start) / 1000000.0f));
 
-    LOG_TEE("\n");
+    LOG("\n");
     llama_perf_sampler_print(smpl);
     llama_perf_context_print(ctx);
 
-    fprintf(stderr, "\n");
+    LOG("\n");
 
     llama_batch_free(batch);
     llama_sampler_free(smpl);

examples/speculative/speculative.cpp

@@ -1,13 +1,16 @@
 #include "arg.h"
 #include "common.h"
 #include "sampling.h"
+#include "log.h"
 #include "llama.h"
 
+#include <algorithm>
 #include <cstdio>
+#include <cstring>
+#include <random>
+#include <set>
 #include <string>
 #include <vector>
-#include <set>
-#include <random>
 
 #define SPEC_VOCAB_MAX_SIZE_DIFFERENCE  100
 #define SPEC_VOCAB_CHECK_START_TOKEN_ID 5
@@ -27,6 +30,8 @@ struct seq_draft {
 };
 
 int main(int argc, char ** argv) {
+    gpt_init();
+
     gpt_params params;
 
     if (!gpt_params_parse(argc, argv, params, LLAMA_EXAMPLE_SPECULATIVE)) {
@@ -34,7 +39,7 @@ int main(int argc, char ** argv) {
     }
 
     if (params.model_draft.empty()) {
-        fprintf(stderr, "%s: error: --model-draft is required\n", __func__);
+        LOG_ERR("%s: --model-draft is required\n", __func__);
         return 1;
     }
 
@@ -47,12 +52,6 @@ int main(int argc, char ** argv) {
     std::default_random_engine rng(params.sparams.seed);
     std::uniform_real_distribution<> u_dist;
 
-#ifndef LOG_DISABLE_LOGS
-    log_set_target(log_filename_generator("speculative", "log"));
-    LOG_TEE("Log start\n");
-    log_dump_cmdline(argc, argv);
-#endif // LOG_DISABLE_LOGS
-
     // init llama.cpp
     llama_backend_init();
     llama_numa_init(params.numa);
@@ -81,14 +80,14 @@ int main(int argc, char ** argv) {
     ctx_dft = llama_init_dft.context;
 
     const bool vocab_type_tgt = llama_vocab_type(model_tgt);
-    LOG("vocab_type tgt: %d\n", vocab_type_tgt);
+    LOG_DBG("vocab_type tgt: %d\n", vocab_type_tgt);
 
     const bool vocab_type_dft = llama_vocab_type(model_dft);
-    LOG("vocab_type dft: %d\n", vocab_type_dft);
+    LOG_DBG("vocab_type dft: %d\n", vocab_type_dft);
 
     if (vocab_type_tgt != vocab_type_dft) {
-        fprintf(stderr, "%s: error: draft model vocab type must match target model to use speculation but ", __func__);
+        LOG_ERR("%s: draft model vocab type must match target model to use speculation but ", __func__);
-        fprintf(stderr, "vocab_type_dft = %d while vocab_type_tgt = %d\n", vocab_type_dft, vocab_type_tgt);
+        LOG_ERR("vocab_type_dft = %d while vocab_type_tgt = %d\n", vocab_type_dft, vocab_type_tgt);
         return 1;
     }
 
@@ -98,7 +97,7 @@ int main(int argc, char ** argv) {
         llama_token_bos(model_tgt) != llama_token_bos(model_dft) ||
         llama_token_eos(model_tgt) != llama_token_eos(model_dft)
     ) {
-        fprintf(stderr, "%s: error: draft model special tokens must match target model to use speculation\n", __func__);
+        LOG_ERR("%s: draft model special tokens must match target model to use speculation\n", __func__);
         return 1;
     }
 
@@ -110,8 +109,8 @@ int main(int argc, char ** argv) {
             : n_vocab_dft - n_vocab_tgt;
 
         if (vocab_diff > SPEC_VOCAB_MAX_SIZE_DIFFERENCE) {
-            fprintf(stderr, "%s: error: draft model vocab must closely match target model to use speculation but ", __func__);
+            LOG_ERR("%s: draft model vocab must closely match target model to use speculation but ", __func__);
-            fprintf(stderr, "target vocab size %d does not match draft vocab size %d - difference %d, max allowed %d\n",
+            LOG_ERR("target vocab size %d does not match draft vocab size %d - difference %d, max allowed %d\n",
                     n_vocab_tgt, llama_n_vocab(model_dft), vocab_diff, SPEC_VOCAB_MAX_SIZE_DIFFERENCE);
             return 1;
         }
@@ -120,8 +119,8 @@ int main(int argc, char ** argv) {
             const char * token_text_tgt = llama_token_get_text(model_tgt, i);
             const char * token_text_dft = llama_token_get_text(model_dft, i);
             if (std::strcmp(token_text_tgt, token_text_dft) != 0) {
-                fprintf(stderr, "%s: error: draft model vocab must match target model to use speculation but ", __func__);
+                LOG_ERR("%s: draft model vocab must match target model to use speculation but ", __func__);
-                fprintf(stderr, "token %d content differs - target '%s', draft '%s'\n", i,
+                LOG_ERR("token %d content differs - target '%s', draft '%s'\n", i,
                         llama_token_to_piece(ctx_tgt, i).c_str(),
                         llama_token_to_piece(ctx_dft, i).c_str());
                 return 1;
@@ -138,18 +137,16 @@ int main(int argc, char ** argv) {
     const int max_tokens_list_size = max_context_size - 4;
 
     if ((int) inp.size() > max_tokens_list_size) {
-        fprintf(stderr, "%s: error: prompt too long (%d tokens, max %d)\n", __func__, (int) inp.size(), max_tokens_list_size);
+        LOG_ERR("%s: prompt too long (%d tokens, max %d)\n", __func__, (int) inp.size(), max_tokens_list_size);
         return 1;
     }
 
-    fprintf(stderr, "\n\n");
+    LOG("\n\n");
 
     for (auto id : inp) {
-        fprintf(stderr, "%s", llama_token_to_piece(ctx_tgt, id).c_str());
+        LOG("%s", llama_token_to_piece(ctx_tgt, id).c_str());
     }
 
-    fflush(stderr);
-
     const int n_input = inp.size();
 
     const auto t_enc_start = ggml_time_us();
@@ -211,7 +208,7 @@ int main(int argc, char ** argv) {
             active_seqs.insert(s);
             const auto & tokens = drafts[s].tokens;
 
-            LOG("draft %d: %s\n", s, LOG_TOKENS_TOSTR_PRETTY(ctx_dft, tokens).c_str());
+            LOG_DBG("draft %d: %s\n", s, string_from(ctx_dft, tokens).c_str());
         }
 
         int i_dft  = 0;
@@ -254,7 +251,7 @@ int main(int argc, char ** argv) {
                             continue;
                         }
 
-                        LOG("verifying sequence #%d at pos #%d from %d active sequence(s)\n", s, i_dft, (int) active_seqs.size());
+                        LOG_DBG("verifying sequence #%d at pos #%d from %d active sequence(s)\n", s, i_dft, (int) active_seqs.size());
                         float r = u_dist(rng);
                         llama_token_data_array dist_dft = { drafts[s].dists[i_dft].data() , drafts[s].dists[i_dft].size(), LLAMA_TOKEN_NULL, true };
 
@@ -272,7 +269,7 @@ int main(int argc, char ** argv) {
                                 break;
                             }
                         }
-                        LOG("r = %f, p_dft = %f, p_tgt = %f\n", r, p_dft, p_tgt);
+                        LOG_DBG("r = %f, p_dft = %f, p_tgt = %f\n", r, p_dft, p_tgt);
                         if (r <= p_tgt / p_dft) {
                             s_keep = s;
                             accept = true;
@@ -280,10 +277,10 @@ int main(int argc, char ** argv) {
                             token_str = llama_token_to_piece(ctx_tgt, token_id);
                             gpt_sampler_accept(smpl, token_id, true);
 
-                            LOG("draft token %d of sequence %d (%d, '%s') accepted\n", i_dft, s, token_id, token_str.c_str());
+                            LOG_DBG("draft token %d of sequence %d (%d, '%s') accepted\n", i_dft, s, token_id, token_str.c_str());
                             break;
                         } else {
-                            LOG("draft token %d of sequence %d (%d, '%s') rejected\n", i_dft, s, drafts[s].tokens[i_dft], llama_token_to_piece(ctx_tgt, drafts[s].tokens[i_dft]).c_str());
+                            LOG_DBG("draft token %d of sequence %d (%d, '%s') rejected\n", i_dft, s, drafts[s].tokens[i_dft], llama_token_to_piece(ctx_tgt, drafts[s].tokens[i_dft]).c_str());
                             drafts[s].active = false;
 
                             // calculate residual probability
@@ -338,7 +335,7 @@ int main(int argc, char ** argv) {
                     if (!accept) {
                         // all drafted tokens were rejected
                         // sample from the target model
-                        LOG("all drafted tokens were rejected, sampling from residual distribution\n");
+                        LOG_DBG("all drafted tokens were rejected, sampling from residual distribution\n");
                         std::vector<float> probs(dist_tgt.size);
                         for (size_t i = 0; i < dist_tgt.size; ++i) {
                             probs[i] = dist_tgt.data[i].p;
@@ -356,13 +353,11 @@ int main(int argc, char ** argv) {
                     // greedy verification
 
                     // sample from the target model
-                    LOG("sampling target: s_keep = %3d, i_dft = %3d, i_batch_tgt = %3d\n", s_keep, i_dft, drafts[s_keep].i_batch_tgt[i_dft]);
+                    LOG_DBG("sampling target: s_keep = %3d, i_dft = %3d, i_batch_tgt = %3d\n", s_keep, i_dft, drafts[s_keep].i_batch_tgt[i_dft]);
                     token_id = gpt_sampler_sample(smpl, ctx_tgt, drafts[s_keep].i_batch_tgt[i_dft]);
 
                     gpt_sampler_accept(smpl, token_id, true);
 
-                    //LOG("last: %s\n", LOG_TOKENS_TOSTR_PRETTY(ctx_tgt, smpl->prev).c_str());
-
                     token_str = llama_token_to_piece(ctx_tgt, token_id);
 
                     for (int s = 0; s < n_seq_dft; ++s) {
@@ -371,7 +366,7 @@ int main(int argc, char ** argv) {
                         }
 
                         if (i_dft < (int) drafts[s].tokens.size() && token_id == drafts[s].tokens[i_dft]) {
-                            LOG("the sampled target token matches the %dth drafted token of sequence %d (%d, '%s') - accepted\n", i_dft, s, token_id, token_str.c_str());
+                            LOG_DBG("the sampled target token matches the %dth drafted token of sequence %d (%d, '%s') - accepted\n", i_dft, s, token_id, token_str.c_str());
 
                             s_keep = s;
                             accept = true;
@@ -393,26 +388,24 @@ int main(int argc, char ** argv) {
                     ++i_dft;
                     if (params.use_color) {
                         // Color token according to its origin sequence
-                        printf("\u001b[%dm%s\u001b[37m", (36 - s_keep % 6), token_str.c_str());
+                        LOG("\u001b[%dm%s\u001b[37m", (36 - s_keep % 6), token_str.c_str());
                     } else {
-                        printf("%s", token_str.c_str());
+                        LOG("%s", token_str.c_str());
                     }
-                    fflush(stdout);
                     continue;
                 } else {
-                    printf("%s", token_str.c_str());
+                    LOG("%s", token_str.c_str());
-                    fflush(stdout);
                     break;
                 }
             }
         }
 
         {
-            LOG("the sampled target token (%d, '%s') did not match, or we ran out of drafted tokens\n", token_id, token_str.c_str());
+            LOG_DBG("the sampled target token (%d, '%s') did not match, or we ran out of drafted tokens\n", token_id, token_str.c_str());
 
             // TODO: simplify
             {
-                LOG("keeping sequence %d, n_past_tgt = %d, n_past_dft = %d\n", s_keep, n_past_tgt, n_past_dft);
+                LOG_DBG("keeping sequence %d, n_past_tgt = %d, n_past_dft = %d\n", s_keep, n_past_tgt, n_past_dft);
 
                 llama_kv_cache_seq_keep(ctx_dft, s_keep);
                 llama_kv_cache_seq_cp  (ctx_dft, s_keep, 0, -1, -1);
@@ -439,7 +432,7 @@ int main(int argc, char ** argv) {
             llama_batch_add  (batch_dft, token_id, n_past_dft, { 0 }, true);
 
             llama_kv_cache_seq_rm(ctx_dft, 0, n_past_dft, -1);
-            // LOG("dft batch: %s\n", LOG_BATCH_TOSTR_PRETTY(ctx_dft, batch_dft).c_str());
+            // LOG_DBG("dft batch: %s\n", LOG_BATCH_TOSTR_PRETTY(ctx_dft, batch_dft).c_str());
             llama_decode(ctx_dft, batch_dft);
 
             ++n_past_dft;
@@ -486,7 +479,7 @@ int main(int argc, char ** argv) {
                 const auto * cur_p = gpt_sampler_get_candidates(drafts[s].smpl);
 
                 for (int k = 0; k < std::min(n_seq_dft + 3, (int) cur_p->size); ++k) {
-                    LOG(" - draft candidate %3d for seq %3d, pos %3d: %6d (%8.3f) '%s'\n",
+                    LOG_DBG(" - draft candidate %3d for seq %3d, pos %3d: %6d (%8.3f) '%s'\n",
                             k, s, i, cur_p->data[k].id, cur_p->data[k].p, llama_token_to_piece(ctx_dft, cur_p->data[k].id).c_str());
                 }
 
@@ -495,7 +488,7 @@ int main(int argc, char ** argv) {
                 // attempt to split the branch if the probability is high enough
                 for (int f = 1; f < 8; ++f) {
                     if (n_seq_cur < n_seq_dft && cur_p->data[f].p > p_split) {
-                        LOG("splitting seq %3d into %3d\n", s, n_seq_cur);
+                        LOG_DBG("splitting seq %3d into %3d\n", s, n_seq_cur);
 
                         llama_kv_cache_seq_rm(ctx_dft,    n_seq_cur, -1, -1);
                         llama_kv_cache_seq_cp(ctx_dft, s, n_seq_cur, -1, -1);
@@ -584,7 +577,7 @@ int main(int argc, char ** argv) {
                 llama_kv_cache_seq_cp(ctx_tgt, 0, s, -1, -1);
             }
 
-            // LOG("target batch: %s\n", LOG_BATCH_TOSTR_PRETTY(ctx_tgt, batch_tgt).c_str());
+            // LOG_DBG("target batch: %s\n", LOG_BATCH_TOSTR_PRETTY(ctx_tgt, batch_tgt).c_str());
             llama_decode(ctx_tgt, batch_tgt);
             ++n_past_tgt;
         }
@@ -602,23 +595,25 @@ int main(int argc, char ** argv) {
 
     auto t_dec_end = ggml_time_us();
 
-    LOG_TEE("\n\n");
+    LOG("\n\n");
 
-    LOG_TEE("encoded %4d tokens in %8.3f seconds, speed: %8.3f t/s\n", n_input,   (t_enc_end - t_enc_start) / 1e6f, inp.size() / ((t_enc_end - t_enc_start) / 1e6f));
+    LOG_INF("encoded %4d tokens in %8.3f seconds, speed: %8.3f t/s\n", n_input,   (t_enc_end - t_enc_start) / 1e6f, inp.size() / ((t_enc_end - t_enc_start) / 1e6f));
-    LOG_TEE("decoded %4d tokens in %8.3f seconds, speed: %8.3f t/s\n", n_predict, (t_dec_end - t_dec_start) / 1e6f, n_predict  / ((t_dec_end - t_dec_start) / 1e6f));
+    LOG_INF("decoded %4d tokens in %8.3f seconds, speed: %8.3f t/s\n", n_predict, (t_dec_end - t_dec_start) / 1e6f, n_predict  / ((t_dec_end - t_dec_start) / 1e6f));
 
-    LOG_TEE("\n");
+    LOG_INF("\n");
-    LOG_TEE("n_draft   = %d\n", n_draft);
+    LOG_INF("n_draft   = %d\n", n_draft);
-    LOG_TEE("n_predict = %d\n", n_predict);
+    LOG_INF("n_predict = %d\n", n_predict);
-    LOG_TEE("n_drafted = %d\n", n_drafted);
+    LOG_INF("n_drafted = %d\n", n_drafted);
-    LOG_TEE("n_accept  = %d\n", n_accept);
+    LOG_INF("n_accept  = %d\n", n_accept);
-    LOG_TEE("accept    = %.3f%%\n", 100.0f * n_accept / n_drafted);
+    LOG_INF("accept    = %.3f%%\n", 100.0f * n_accept / n_drafted);
 
-    LOG_TEE("\ndraft:\n\n");
+    LOG_INF("\n");
+    LOG_INF("draft:\n\n");
     // TODO: print sampling/grammar timings for all drafts
     llama_perf_context_print(ctx_dft);
 
-    LOG_TEE("\ntarget:\n\n");
+    LOG_INF("\n");
+    LOG_INF("target:\n\n");
     gpt_perf_print(ctx_tgt, smpl);
 
     gpt_sampler_free(smpl);
@@ -637,7 +632,7 @@ int main(int argc, char ** argv) {
 
     llama_backend_free();
 
-    fprintf(stderr, "\n\n");
+    LOG("\n\n");
 
     return 0;
 }

examples/tokenize/tokenize.cpp

@@ -1,11 +1,13 @@
 #include "common.h"
+//#include "log.h" // TODO: start using log.h
 #include "llama.h"
 
-#include <cmath>
 #include <cstdio>
+#include <cstring>
 #include <fstream>
 #include <string>
 #include <vector>
+#include <iostream> // TODO: remove me
 
 #if defined(_WIN32)
 #define WIN32_LEAN_AND_MEAN
@@ -13,25 +15,25 @@
 #include <shellapi.h>   // For CommandLineToArgvW
 #endif
 
-static void print_usage_information(const char * argv0, FILE * stream) {
+static void print_usage_information(const char * argv0) {
-    fprintf(stream, "usage: %s [options]\n\n", argv0);
+    printf("usage: %s [options]\n\n", argv0);
-    fprintf(stream, "The tokenize program tokenizes a prompt using a given model,\n");
+    printf("The tokenize program tokenizes a prompt using a given model,\n");
-    fprintf(stream, "and prints the resulting tokens to standard output.\n\n");
+    printf("and prints the resulting tokens to standard output.\n\n");
-    fprintf(stream, "It needs a model file, a prompt, and optionally other flags\n");
+    printf("It needs a model file, a prompt, and optionally other flags\n");
-    fprintf(stream, "to control the behavior of the tokenizer.\n\n");
+    printf("to control the behavior of the tokenizer.\n\n");
-    fprintf(stream, "    The possible options are:\n");
+    printf("    The possible options are:\n");
-    fprintf(stream, "\n");
+    printf("\n");
-    fprintf(stream, "    -h, --help                           print this help and exit\n");
+    printf("    -h, --help                           print this help and exit\n");
-    fprintf(stream, "    -m MODEL_PATH, --model MODEL_PATH    path to model.\n");
+    printf("    -m MODEL_PATH, --model MODEL_PATH    path to model.\n");
-    fprintf(stream, "    --ids                                if given, only print numerical token IDs, and not token strings.\n");
+    printf("    --ids                                if given, only print numerical token IDs, and not token strings.\n");
-    fprintf(stream, "                                         The output format looks like [1, 2, 3], i.e. parseable by Python.\n");
+    printf("                                         The output format looks like [1, 2, 3], i.e. parseable by Python.\n");
-    fprintf(stream, "    -f PROMPT_FNAME, --file PROMPT_FNAME read prompt from a file.\n");
+    printf("    -f PROMPT_FNAME, --file PROMPT_FNAME read prompt from a file.\n");
-    fprintf(stream, "    -p PROMPT, --prompt PROMPT           read prompt from the argument.\n");
+    printf("    -p PROMPT, --prompt PROMPT           read prompt from the argument.\n");
-    fprintf(stream, "    --stdin                              read prompt from standard input.\n");
+    printf("    --stdin                              read prompt from standard input.\n");
-    fprintf(stream, "    --no-bos                             do not ever add a BOS token to the prompt, even if normally the model uses a BOS token.\n");
+    printf("    --no-bos                             do not ever add a BOS token to the prompt, even if normally the model uses a BOS token.\n");
-    fprintf(stream, "    --no-parse-special                   do not parse control tokens.\n");
+    printf("    --no-parse-special                   do not parse control tokens.\n");
-    fprintf(stream, "    --log-disable                        disable logs. Makes stderr quiet when loading the model.\n");
+    printf("    --log-disable                        disable logs. Makes stderr quiet when loading the model.\n");
-    fprintf(stream, "    --show-count                         print the total number of tokens.\n");
+    printf("    --show-count                         print the total number of tokens.\n");
 }
 
 static void llama_log_callback_null(ggml_log_level level, const char * text, void * user_data) {
@@ -185,7 +187,7 @@ int main(int raw_argc, char ** raw_argv) {
     const int argc = argv.size();
 
     if (argc <= 1) {
-        print_usage_information(argv[0].c_str(), stderr);
+        print_usage_information(argv[0].c_str());
         return 1;
     }
 
@@ -214,7 +216,7 @@ int main(int raw_argc, char ** raw_argv) {
     for (; iarg < argc; ++iarg) {
         std::string arg{argv[iarg]};
         if (arg == "-h" || arg == "--help") {
-            print_usage_information(argv[0].c_str(), stdout);
+            print_usage_information(argv[0].c_str());
             return 0;
         }
         else if (arg == "--ids") {
@@ -323,10 +325,6 @@ int main(int raw_argc, char ** raw_argv) {
     // Start actually doing the tokenizing stuff.
     //////
 
-#ifdef LOG_DISABLE_LOGS
-    disable_logging = true;
-#endif
-
     if (disable_logging) {
         llama_log_set(llama_log_callback_null, NULL);
     }

ggml/include/ggml.h

@@ -564,10 +564,11 @@ extern "C" {
     };
 
     enum ggml_log_level {
-        GGML_LOG_LEVEL_ERROR = 2,
+        GGML_LOG_LEVEL_NONE  = 0,
-        GGML_LOG_LEVEL_WARN  = 3,
+        GGML_LOG_LEVEL_INFO  = 1,
-        GGML_LOG_LEVEL_INFO  = 4,
+        GGML_LOG_LEVEL_WARN  = 2,
-        GGML_LOG_LEVEL_DEBUG = 5
+        GGML_LOG_LEVEL_ERROR = 3,
+        GGML_LOG_LEVEL_DEBUG = 4,
     };
 
     enum ggml_tensor_flag {

ggml/src/ggml-metal.m

@@ -13,13 +13,16 @@
 #define MAX(a, b) ((a) > (b) ? (a) : (b))
 
 #ifdef GGML_METAL_NDEBUG
+#define GGML_METAL_LOG(...)
 #define GGML_METAL_LOG_INFO(...)
 #define GGML_METAL_LOG_WARN(...)
 #define GGML_METAL_LOG_ERROR(...)
 #else
+#define GGML_METAL_LOG(...)       ggml_metal_log(GGML_LOG_LEVEL_NONE,  __VA_ARGS__)
 #define GGML_METAL_LOG_INFO(...)  ggml_metal_log(GGML_LOG_LEVEL_INFO,  __VA_ARGS__)
 #define GGML_METAL_LOG_WARN(...)  ggml_metal_log(GGML_LOG_LEVEL_WARN,  __VA_ARGS__)
 #define GGML_METAL_LOG_ERROR(...) ggml_metal_log(GGML_LOG_LEVEL_ERROR, __VA_ARGS__)
+#define GGML_METAL_LOG_DEBUG(...) ggml_metal_log(GGML_LOG_LEVEL_DEBUG, __VA_ARGS__)
 #endif
 
 #define UNUSED(x) (void)(x)
@@ -3183,7 +3186,7 @@ static void ggml_backend_metal_log_allocated_size(id<MTLDevice> device, size_t s
 #ifndef GGML_METAL_NDEBUG
 #if TARGET_OS_OSX || (TARGET_OS_IOS && __clang_major__ >= 15)
     if (@available(macOS 10.12, iOS 16.0, *)) {
-        GGML_METAL_LOG_INFO("%s: allocated buffer, size = %8.2f MiB, (%8.2f / %8.2f)",
+        GGML_METAL_LOG_DEBUG("%s: allocated buffer, size = %8.2f MiB, (%8.2f / %8.2f)\n",
                 __func__,
                 size_aligned / 1024.0 / 1024.0,
                 device.currentAllocatedSize / 1024.0 / 1024.0,
@@ -3191,8 +3194,6 @@ static void ggml_backend_metal_log_allocated_size(id<MTLDevice> device, size_t s
 
         if (device.currentAllocatedSize > device.recommendedMaxWorkingSetSize) {
             GGML_METAL_LOG_WARN("%s: warning: current allocated size is greater than the recommended max working set size\n", __func__);
-        } else {
-            GGML_METAL_LOG_INFO("\n");
         }
     } else {
         GGML_METAL_LOG_INFO("%s: allocated buffer, size = %8.2f MiB, (%8.2f)\n",

src/llama-impl.h

@@ -24,6 +24,7 @@ LLAMA_ATTRIBUTE_FORMAT(2, 3)
 void llama_log_internal        (ggml_log_level level, const char * format, ...);
 void llama_log_callback_default(ggml_log_level level, const char * text, void * user_data);
 
+#define LLAMA_LOG(...)       llama_log_internal(GGML_LOG_LEVEL_NONE , __VA_ARGS__)
 #define LLAMA_LOG_INFO(...)  llama_log_internal(GGML_LOG_LEVEL_INFO , __VA_ARGS__)
 #define LLAMA_LOG_WARN(...)  llama_log_internal(GGML_LOG_LEVEL_WARN , __VA_ARGS__)
 #define LLAMA_LOG_ERROR(...) llama_log_internal(GGML_LOG_LEVEL_ERROR, __VA_ARGS__)

src/llama.cpp

@@ -18074,9 +18074,9 @@ struct llama_model * llama_load_model_from_file(
             unsigned percentage = (unsigned) (100 * progress);
             while (percentage > *cur_percentage_p) {
                 *cur_percentage_p = percentage;
-                LLAMA_LOG_INFO(".");
+                LLAMA_LOG(".");
                 if (percentage >= 100) {
-                    LLAMA_LOG_INFO("\n");
+                    LLAMA_LOG("\n");
                 }
             }
             return true;
@@ -20781,8 +20781,8 @@ static void llama_log_internal_v(ggml_log_level level, const char * format, va_l
     if (len < 128) {
         g_state.log_callback(level, buffer, g_state.log_callback_user_data);
     } else {
-        char* buffer2 = new char[len+1];
+        char * buffer2 = new char[len + 1];
-        vsnprintf(buffer2, len+1, format, args_copy);
+        vsnprintf(buffer2, len + 1, format, args_copy);
         buffer2[len] = 0;
         g_state.log_callback(level, buffer2, g_state.log_callback_user_data);
         delete[] buffer2;

tests/CMakeLists.txt

@@ -108,6 +108,7 @@ llama_test(test-tokenizer-1-spm  NAME test-tokenizer-1-llama-spm ARGS ${CMAKE_CU
 #llama_test(test-tokenizer-1-spm  NAME test-tokenizer-1-baichuan  ARGS ${CMAKE_CURRENT_SOURCE_DIR}/../models/ggml-vocab-baichuan.gguf)
 
 # llama_target_and_test(test-double-float.cpp) # SLOW
+llama_target_and_test(test-log.cpp)
 llama_target_and_test(test-arg-parser.cpp)
 llama_target_and_test(test-quantize-fns.cpp)
 llama_target_and_test(test-quantize-perf.cpp)

tests/test-log.cpp

@@ -0,0 +1,37 @@
+#include "log.h"
+
+#include <cstdlib>
+#include <thread>
+
+int main() {
+    const int n_thread = 8;
+    const int n_msg = 1000;
+
+    std::thread threads[n_thread];
+    for (int i = 0; i < n_thread; i++) {
+        threads[i] = std::thread([i, n_msg]() {
+            for (int j = 0; j < n_msg; j++) {
+                const int log_type = std::rand() % 4;
+
+                switch (log_type) {
+                    case 0: LOG_INF("Thread %d: %d\n", i, j); break;
+                    case 1: LOG_WRN("Thread %d: %d\n", i, j); break;
+                    case 2: LOG_ERR("Thread %d: %d\n", i, j); break;
+                    case 3: LOG_DBG("Thread %d: %d\n", i, j); break;
+                    default:
+                        break;
+                }
+
+                if (rand () % 10 < 5) {
+                    gpt_log_set_timestamps(gpt_log_main(), rand() % 2);
+                }
+            }
+        });
+    }
+
+    for (int i = 0; i < n_thread; i++) {
+        threads[i].join();
+    }
+
+    return 0;
+}