Merge a2d4b6fc81 into 30caac3a68

* llama : the WPM vocabs use the CLS token as BOS

ggml-ci

* llama : add comment

ggml/src/CMakeLists.txt

@@ -234,6 +234,7 @@ function(ggml_add_backend_library backend)
         # write the shared library to the output directory
         set_target_properties(${backend} PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY})
         target_compile_definitions(${backend} PRIVATE GGML_BACKEND_DL)
+        add_dependencies(ggml ${backend})
     else()
         add_library(${backend} ${ARGN})
         target_link_libraries(ggml PUBLIC ${backend})

ggml/src/ggml-backend-reg.cpp

@@ -66,6 +66,26 @@
 #include "ggml-kompute.h"
 #endif
 
+// disable C++17 deprecation warning for std::codecvt_utf8
+#if defined(__clang__)
+#    pragma clang diagnostic push
+#    pragma clang diagnostic ignored "-Wdeprecated-declarations"
+#endif
+
+static std::wstring utf8_to_utf16(const std::string & str) {
+    std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
+    return converter.from_bytes(str);
+}
+
+static std::string utf16_to_utf8(const std::wstring & str) {
+    std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
+    return converter.to_bytes(str);
+}
+
+#if defined(__clang__)
+#    pragma clang diagnostic pop
+#endif
+
 #ifdef _WIN32
 
 using dl_handle = std::remove_pointer_t<HMODULE>;
@@ -88,11 +108,6 @@ static dl_handle * dl_load_library(const std::wstring & path) {
     return handle;
 }
 
-static dl_handle * dl_load_library(const std::string & path) {
-    std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
-    return dl_load_library(converter.from_bytes(path));
-}
-
 static void * dl_get_sym(dl_handle * handle, const char * name) {
     DWORD old_mode = SetErrorMode(SEM_FAILCRITICALERRORS);
     SetErrorMode(old_mode | SEM_FAILCRITICALERRORS);
@@ -114,8 +129,8 @@ struct dl_handle_deleter {
     }
 };
 
-static void * dl_load_library(const std::string & path) {
-    dl_handle * handle = dlopen(path.c_str(), RTLD_NOW | RTLD_LOCAL);
+static void * dl_load_library(const std::wstring & path) {
+    dl_handle * handle = dlopen(utf16_to_utf8(path).c_str(), RTLD_NOW | RTLD_LOCAL);
 
     return handle;
 }
@@ -202,11 +217,11 @@ struct ggml_backend_registry {
         devices.push_back(device);
     }
 
-    ggml_backend_reg_t load_backend(const char * path, bool silent) {
+    ggml_backend_reg_t load_backend(const std::wstring & path, bool silent) {
         dl_handle_ptr handle { dl_load_library(path) };
         if (!handle) {
             if (!silent) {
-                GGML_LOG_ERROR("%s: failed to load %s\n", __func__, path);
+                GGML_LOG_ERROR("%s: failed to load %s\n", __func__, utf16_to_utf8(path).c_str());
             }
             return nullptr;
         }
@@ -214,7 +229,7 @@ struct ggml_backend_registry {
         auto score_fn = (ggml_backend_score_t) dl_get_sym(handle.get(), "ggml_backend_score");
         if (score_fn && score_fn() == 0) {
             if (!silent) {
-                GGML_LOG_INFO("%s: backend %s is not supported on this system\n", __func__, path);
+                GGML_LOG_INFO("%s: backend %s is not supported on this system\n", __func__, utf16_to_utf8(path).c_str());
             }
             return nullptr;
         }
@@ -222,7 +237,7 @@ struct ggml_backend_registry {
         auto backend_init_fn = (ggml_backend_init_t) dl_get_sym(handle.get(), "ggml_backend_init");
         if (!backend_init_fn) {
             if (!silent) {
-                GGML_LOG_ERROR("%s: failed to find ggml_backend_init in %s\n", __func__, path);
+                GGML_LOG_ERROR("%s: failed to find ggml_backend_init in %s\n", __func__, utf16_to_utf8(path).c_str());
             }
             return nullptr;
         }
@@ -231,16 +246,16 @@ struct ggml_backend_registry {
         if (!reg || reg->api_version != GGML_BACKEND_API_VERSION) {
             if (!silent) {
                 if (!reg) {
-                    GGML_LOG_ERROR("%s: failed to initialize backend from %s: ggml_backend_init returned NULL\n", __func__, path);
+                    GGML_LOG_ERROR("%s: failed to initialize backend from %s: ggml_backend_init returned NULL\n", __func__, utf16_to_utf8(path).c_str());
                 } else {
                     GGML_LOG_ERROR("%s: failed to initialize backend from %s: incompatible API version (backend: %d, current: %d)\n",
-                        __func__, path, reg->api_version, GGML_BACKEND_API_VERSION);
+                        __func__, utf16_to_utf8(path).c_str(), reg->api_version, GGML_BACKEND_API_VERSION);
                 }
             }
             return nullptr;
         }
 
-        GGML_LOG_INFO("%s: loaded %s backend from %s\n", __func__, ggml_backend_reg_name(reg), path);
+        GGML_LOG_INFO("%s: loaded %s backend from %s\n", __func__, ggml_backend_reg_name(reg), utf16_to_utf8(path).c_str());
 
         register_backend(reg, std::move(handle));
 
@@ -376,14 +391,14 @@ ggml_backend_t ggml_backend_init_best(void) {
 
 // Dynamic loading
 ggml_backend_reg_t ggml_backend_load(const char * path) {
-    return get_reg().load_backend(path, false);
+    return get_reg().load_backend(utf8_to_utf16(path), false);
 }
 
 void ggml_backend_unload(ggml_backend_reg_t reg) {
     get_reg().unload_backend(reg, true);
 }
 
-static std::string get_executable_path() {
+static std::wstring get_executable_path() {
 #if defined(__APPLE__)
     // get executable path
     std::vector<char> path;
@@ -401,7 +416,7 @@ static std::string get_executable_path() {
     if (last_slash != std::string::npos) {
         base_path = base_path.substr(0, last_slash);
     }
-    return base_path + "/";
+    return utf8_to_utf16(base_path + "/");
 #elif defined(__linux__) || defined(__FreeBSD__)
     std::string base_path = ".";
     std::vector<char> path(1024);
@@ -427,57 +442,63 @@ static std::string get_executable_path() {
         path.resize(path.size() * 2);
     }
 
-    return base_path + "/";
+    return utf8_to_utf16(base_path + "/");
 #elif defined(_WIN32)
-    std::vector<char> path(MAX_PATH);
-    DWORD len = GetModuleFileNameA(NULL, path.data(), path.size());
+    std::vector<wchar_t> path(MAX_PATH);
+    DWORD len = GetModuleFileNameW(NULL, path.data(), path.size());
     if (len == 0) {
-        return "";
+        return {};
     }
-    std::string base_path(path.data(), len);
+    std::wstring base_path(path.data(), len);
     // remove executable name
     auto last_slash = base_path.find_last_of('\\');
     if (last_slash != std::string::npos) {
         base_path = base_path.substr(0, last_slash);
     }
-    return base_path + "\\";
+    return base_path + L"\\";
+#else
+    return {};
 #endif
 }
 
-static std::string backend_filename_prefix() {
+static std::wstring backend_filename_prefix() {
 #ifdef _WIN32
-    return "ggml-";
+    return L"ggml-";
 #else
-    return "libggml-";
+    return L"libggml-";
 #endif
 }
 
-static std::string backend_filename_suffix() {
+static std::wstring backend_filename_suffix() {
 #ifdef _WIN32
-    return ".dll";
+    return L".dll";
 #else
-    return ".so";
+    return L".so";
+#endif
+}
+
+static std::wstring path_separator() {
+#ifdef _WIN32
+    return L"\\";
+#else
+    return L"/";
 #endif
 }
 
 static ggml_backend_reg_t ggml_backend_load_best(const char * name, bool silent, const char * user_search_path) {
     // enumerate all the files that match [lib]ggml-name-*.[so|dll] in the search paths
      // TODO: search system paths
-    std::string file_prefix = backend_filename_prefix() + name + "-";
-    std::vector<std::string> search_paths;
+    std::wstring file_prefix = backend_filename_prefix() + utf8_to_utf16(name) + L"-";
+    std::vector<std::wstring> search_paths;
     if (user_search_path == nullptr) {
-        search_paths.push_back("./");
+        search_paths.push_back(L"." + path_separator());
         search_paths.push_back(get_executable_path());
     } else {
-#if defined(_WIN32)
-        search_paths.push_back(std::string(user_search_path) + "\\");
-#else
-        search_paths.push_back(std::string(user_search_path) + "/");
-#endif
+        search_paths.push_back(utf8_to_utf16(user_search_path) + path_separator());
     }
 
     int best_score = 0;
-    std::string best_path;
+    std::wstring best_path;
 
     namespace fs = std::filesystem;
     for (const auto & search_path : search_paths) {
@@ -487,27 +508,27 @@ static ggml_backend_reg_t ggml_backend_load_best(const char * name, bool silent,
         fs::directory_iterator dir_it(search_path, fs::directory_options::skip_permission_denied);
         for (const auto & entry : dir_it) {
             if (entry.is_regular_file()) {
-                std::string filename = entry.path().filename().string();
-                std::string ext = entry.path().extension().string();
+                std::wstring filename = entry.path().filename().wstring();
+                std::wstring ext = entry.path().extension().wstring();
                 if (filename.find(file_prefix) == 0 && ext == backend_filename_suffix()) {
-                    dl_handle_ptr handle { dl_load_library(entry.path().c_str()) };
+                    dl_handle_ptr handle { dl_load_library(entry.path().wstring()) };
                     if (!handle && !silent) {
-                        GGML_LOG_ERROR("%s: failed to load %s\n", __func__, entry.path().string().c_str());
+                        GGML_LOG_ERROR("%s: failed to load %s\n", __func__, utf16_to_utf8(entry.path().wstring()).c_str());
                     }
                     if (handle) {
                         auto score_fn = (ggml_backend_score_t) dl_get_sym(handle.get(), "ggml_backend_score");
                         if (score_fn) {
                             int s = score_fn();
 #ifndef NDEBUG
-                            GGML_LOG_DEBUG("%s: %s score: %d\n", __func__, entry.path().string().c_str(), s);
+                            GGML_LOG_DEBUG("%s: %s score: %d\n", __func__, utf16_to_utf8(entry.path().wstring()).c_str(), s);
 #endif
                             if (s > best_score) {
                                 best_score = s;
-                                best_path = entry.path().string();
+                                best_path = entry.path().wstring();
                             }
                         } else {
                             if (!silent) {
-                                GGML_LOG_INFO("%s: failed to find ggml_backend_score in %s\n", __func__, entry.path().string().c_str());
+                                GGML_LOG_INFO("%s: failed to find ggml_backend_score in %s\n", __func__, utf16_to_utf8(entry.path().wstring()).c_str());
                             }
                         }
                     }
@@ -519,15 +540,15 @@ static ggml_backend_reg_t ggml_backend_load_best(const char * name, bool silent,
     if (best_score == 0) {
         // try to load the base backend
         for (const auto & search_path : search_paths) {
-            std::string path = search_path + backend_filename_prefix() + name + backend_filename_suffix();
+            std::wstring path = search_path + backend_filename_prefix() + utf8_to_utf16(name) + backend_filename_suffix();
             if (fs::exists(path)) {
-                return get_reg().load_backend(path.c_str(), silent);
+                return get_reg().load_backend(path, silent);
             }
         }
         return nullptr;
     }
 
-    return get_reg().load_backend(best_path.c_str(), silent);
+    return get_reg().load_backend(best_path, silent);
 }
 
 void ggml_backend_load_all() {

ggml/src/ggml-cpu/CMakeLists.txt

@@ -135,14 +135,20 @@ function(ggml_add_cpu_backend_variant_impl tag_name)
             endif()
 
             # show enabled features
+            if (CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
+                set(FEAT_INPUT_FILE "NUL")
+            else()
+                set(FEAT_INPUT_FILE "/dev/null")
+            endif()
+
             execute_process(
                 COMMAND ${CMAKE_C_COMPILER} ${ARCH_FLAGS} -dM -E -
-                INPUT_FILE "/dev/null"
+                INPUT_FILE ${FEAT_INPUT_FILE}
                 OUTPUT_VARIABLE ARM_FEATURE
                 RESULT_VARIABLE ARM_FEATURE_RESULT
             )
             if (ARM_FEATURE_RESULT)
-                message(FATAL_ERROR "Failed to get ARM features")
+                message(WARNING "Failed to get ARM features")
             else()
                 foreach(feature DOTPROD SVE MATMUL_INT8 FMA FP16_VECTOR_ARITHMETIC)
                     string(FIND "${ARM_FEATURE}" "__ARM_FEATURE_${feature} 1" feature_pos)
@@ -317,6 +323,11 @@ function(ggml_add_cpu_backend_variant_impl tag_name)
     target_compile_definitions(${GGML_CPU_NAME} PRIVATE ${ARCH_DEFINITIONS})
 
     if (GGML_BACKEND_DL)
+        if (GGML_NATIVE)
+            # the feature check relies on ARCH_DEFINITIONS, but it is not set with GGML_NATIVE
+            message(FATAL_ERROR "GGML_NATIVE is not compatible with GGML_BACKEND_DL, consider using GGML_CPU_ALL_VARIANTS")
+        endif()
+
         # The feature detection code is compiled as a separate target so that
         # it can be built without the architecture flags
         # Since multiple variants of the CPU backend may be included in the same

src/llama-vocab.cpp

@@ -1657,7 +1657,7 @@ bool llama_token_is_control_impl(const struct llama_vocab & vocab, llama_token t
 }
 
 llama_token llama_token_bos_impl(const struct llama_vocab & vocab) {
-    return vocab.special_bos_id;
+    return vocab.type != LLAMA_VOCAB_TYPE_WPM ? vocab.special_bos_id : vocab.special_cls_id;
 }
 
 llama_token llama_token_eos_impl(const struct llama_vocab & vocab) {

src/llama-vocab.h

@@ -45,7 +45,7 @@ struct llama_vocab {
     id special_unk_id  = 0;
     id special_sep_id  = LLAMA_TOKEN_NULL;
     id special_pad_id  = LLAMA_TOKEN_NULL;
-    id special_cls_id  = LLAMA_TOKEN_NULL;
+    id special_cls_id  = LLAMA_TOKEN_NULL; // TODO: revisit if this is really needed https://github.com/ggerganov/llama.cpp/pull/10930
     id special_mask_id = LLAMA_TOKEN_NULL;
 
     id linefeed_id = 13;

src/llama.cpp

@@ -3053,6 +3053,13 @@ struct llama_kv_cache {
     }
 };
 
+// block of KV slots to move when defragging
+struct llama_kv_defrag_move {
+    uint32_t src;
+    uint32_t dst;
+    uint32_t len;
+};
+
 struct llama_control_vector {
     std::vector<struct ggml_tensor *> tensors; // per layer
     std::vector<ggml_context_ptr> ctxs;
@@ -10990,35 +10997,23 @@ struct llm_build_context {
         return gf;
     }
 
-    struct ggml_cgraph * build_defrag(const std::vector<uint32_t> & ids) {
+    struct ggml_cgraph * build_defrag(const std::vector<struct llama_kv_defrag_move> & moves) {
         struct ggml_cgraph * gf = ggml_new_graph_custom(ctx0, llama_model_max_nodes(model), false);
 
-        for (uint32_t i = 0; i < ids.size(); ++i) {
-            const uint32_t id = ids[i];
-
-            if (i == id || id == ids.size()) {
-                continue;
-            }
-
-            uint32_t nm = 1;
-
-            while (i + nm < ids.size() && ids[i + nm] == id + nm) {
-                nm++;
-            }
-
+        for (const auto & move : moves) {
             for (int il = 0; il < n_layer; ++il) {
                 const int64_t n_embd_k_gqa = hparams.n_embd_k_gqa(il);
                 const int64_t n_embd_v_gqa = hparams.n_embd_v_gqa(il);
 
                 ggml_tensor * view_k_src = ggml_view_2d(ctx0, kv_self.k_l[il],
-                        n_embd_k_gqa, nm,
+                        n_embd_k_gqa, move.len,
                         ggml_row_size(kv_self.k_l[il]->type, n_embd_k_gqa),
-                        ggml_row_size(kv_self.k_l[il]->type, n_embd_k_gqa*i));
+                        ggml_row_size(kv_self.k_l[il]->type, n_embd_k_gqa*move.src));
 
                 ggml_tensor * view_k_dst = ggml_view_2d(ctx0, kv_self.k_l[il],
-                        n_embd_k_gqa, nm,
+                        n_embd_k_gqa, move.len,
                         ggml_row_size(kv_self.k_l[il]->type, n_embd_k_gqa),
-                        ggml_row_size(kv_self.k_l[il]->type, n_embd_k_gqa*id));
+                        ggml_row_size(kv_self.k_l[il]->type, n_embd_k_gqa*move.dst));
 
                 ggml_tensor * view_v_src;
                 ggml_tensor * view_v_dst;
@@ -11026,31 +11021,29 @@ struct llm_build_context {
                 if (flash_attn) {
                     // NOTE: the V cache is not transposed when using flash attention
                     view_v_src = ggml_view_2d(ctx0, kv_self.v_l[il],
-                            n_embd_v_gqa, nm,
+                            n_embd_v_gqa, move.len,
                             ggml_row_size(kv_self.v_l[il]->type, n_embd_v_gqa),
-                            ggml_row_size(kv_self.v_l[il]->type, n_embd_v_gqa*i));
+                            ggml_row_size(kv_self.v_l[il]->type, n_embd_v_gqa*move.src));
 
                     view_v_dst = ggml_view_2d(ctx0, kv_self.v_l[il],
-                            n_embd_v_gqa, nm,
+                            n_embd_v_gqa, move.len,
                             ggml_row_size(kv_self.v_l[il]->type, n_embd_v_gqa),
-                            ggml_row_size(kv_self.v_l[il]->type, n_embd_v_gqa*id));
+                            ggml_row_size(kv_self.v_l[il]->type, n_embd_v_gqa*move.dst));
                 } else {
                     view_v_src = ggml_view_2d(ctx0, kv_self.v_l[il],
-                            nm, n_embd_v_gqa,
+                            move.len, n_embd_v_gqa,
                             ggml_row_size(kv_self.v_l[il]->type, kv_self.size),
-                            ggml_row_size(kv_self.v_l[il]->type, i));
+                            ggml_row_size(kv_self.v_l[il]->type, move.src));
 
                     view_v_dst = ggml_view_2d(ctx0, kv_self.v_l[il],
-                            nm, n_embd_v_gqa,
+                            move.len, n_embd_v_gqa,
                             ggml_row_size(kv_self.v_l[il]->type, kv_self.size),
-                            ggml_row_size(kv_self.v_l[il]->type, id));
+                            ggml_row_size(kv_self.v_l[il]->type, move.dst));
                 }
 
                 ggml_build_forward_expand(gf, ggml_cpy(ctx0, view_k_src, view_k_dst));
                 ggml_build_forward_expand(gf, ggml_cpy(ctx0, view_v_src, view_v_dst));
             }
-
-            i += nm - 1;
         }
 
         //LLAMA_LOG_INFO("gf->n_nodes = %d\n", gf->n_nodes);
@@ -17601,7 +17594,7 @@ struct llm_build_context {
     }
 };
 
-static struct ggml_cgraph * llama_build_graph_defrag(llama_context & lctx, const std::vector<uint32_t> & ids) {
+static struct ggml_cgraph * llama_build_graph_defrag(llama_context & lctx, const std::vector<struct llama_kv_defrag_move> & moves) {
     llama_ubatch dummy = {};
     dummy.equal_seqs = true;
 
@@ -17611,7 +17604,7 @@ static struct ggml_cgraph * llama_build_graph_defrag(llama_context & lctx, const
 
     llm.init();
 
-    struct ggml_cgraph * result = llm.build_defrag(ids);
+    struct ggml_cgraph * result = llm.build_defrag(moves);
 
     llm.free();
 
@@ -18627,7 +18620,12 @@ static int llama_decode_internal(
                 kv_self.head = 0;
             }
 
-            const auto slot = llama_kv_cache_find_slot(kv_self, ubatch);
+            auto slot = llama_kv_cache_find_slot(kv_self, ubatch);
+            if (!slot) {
+                llama_kv_cache_defrag(kv_self);
+                llama_kv_cache_update(&lctx);
+                slot = llama_kv_cache_find_slot(kv_self, ubatch);
+            }
             if (!slot) {
                 return 1;
             }
@@ -19030,8 +19028,8 @@ static void llama_kv_cache_defrag_internal(struct llama_context & lctx) {
 
     //const int64_t t_start = ggml_time_us();
 
-    // number of cells moved
-    uint32_t n_moves = 0;
+    // groups of cells moved
+    std::vector<struct llama_kv_defrag_move> moves;
 
     // each move requires 6*n_layer tensors (see build_defrag)
     //   - source view, destination view, copy operation
@@ -19095,19 +19093,11 @@ static void llama_kv_cache_defrag_internal(struct llama_context & lctx) {
         // are we moving a continuous block of memory?
         bool cont = false;
 
-        // should we stop searching for the next move?
-        bool stop = false;
-
         // go back and move the nf cells to the hole
         for (; i1 < n_kv; ++i1) {
             auto & cell1 = kv_self.cells[i1];
 
             if (cell1.is_empty() || ids[i1] != n_kv) {
-                if (n_moves == max_moves) {
-                    stop = true;
-                    break;
-                }
-
                 cont = false;
                 continue;
             }
@@ -19123,8 +19113,10 @@ static void llama_kv_cache_defrag_internal(struct llama_context & lctx) {
             kv_self.head = n_used;
 
             if (!cont) {
-                n_moves++;
+                moves.push_back({i1, i0 + nf, 1});
                 cont = true;
+            } else {
+                moves.back().len++;
             }
 
             nf++;
@@ -19134,22 +19126,16 @@ static void llama_kv_cache_defrag_internal(struct llama_context & lctx) {
             }
         }
 
-        if (stop || n_moves == max_moves) {
-            break;
-        }
-
         //LLAMA_LOG_INFO("(tmp log) KV defrag: move [%u, %u) to [%u, %u)\n", is, i1 + 1, i0, i0 + nh);
 
         i0 += nh - 1;
     }
 
-    if (n_moves == 0) {
+    if (moves.size() == 0) {
         return;
     }
 
-    //LLAMA_LOG_INFO("(tmp log) KV defrag cell moves: %u\n", n_moves);
-
-    //LLAMA_LOG_INFO("expected gf nodes: %u\n", 6*n_moves*n_layer);
+    //LLAMA_LOG_INFO("(tmp log) KV defrag cell moves: %u\n",  moves.size());
 
 #if 0
     // CPU defrag
@@ -19224,11 +19210,18 @@ static void llama_kv_cache_defrag_internal(struct llama_context & lctx) {
 #else
     // ggml_graph defrag
 
+    for (std::size_t i = 0; i < moves.size(); i += max_moves) {
+        std::vector<struct llama_kv_defrag_move> chunk;
+        auto end = std::min(i + max_moves, moves.size());
+        chunk.assign(moves.begin() + i, moves.begin() + end);
+
         ggml_backend_sched_reset(lctx.sched.get());
 
-    ggml_cgraph * gf = llama_build_graph_defrag(lctx, ids);
+        //LLAMA_LOG_INFO("expected gf nodes: %u\n", 6*chunk.size()*n_layer);
+        ggml_cgraph * gf = llama_build_graph_defrag(lctx, chunk);
 
         llama_graph_compute(lctx, gf, lctx.cparams.n_threads, lctx.threadpool);
+    }
 #endif
 
     //const int64_t t_end = ggml_time_us();