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llama : remove all_pos_0, all_pos_1, all_seq_id from llama_batch (#9745)
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* refactor llama_batch_get_one * adapt all examples * fix simple.cpp * fix llama_bench * fix * fix context shifting * free batch before return * use common_batch_add, reuse llama_batch in loop * null terminated seq_id list * fix save-load-state example * fix perplexity * correct token pos in llama_batch_allocr
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@ -955,7 +955,7 @@ struct common_init_result common_init_from_params(common_params & params) {
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}
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if (llama_model_has_encoder(model)) {
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llama_encode(lctx, llama_batch_get_one(tmp.data(), tmp.size(), 0, 0));
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llama_encode(lctx, llama_batch_get_one(tmp.data(), tmp.size()));
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llama_token decoder_start_token_id = llama_model_decoder_start_token(model);
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if (decoder_start_token_id == -1) {
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decoder_start_token_id = bos;
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@ -964,7 +964,7 @@ struct common_init_result common_init_from_params(common_params & params) {
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tmp.push_back(decoder_start_token_id);
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}
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if (llama_model_has_decoder(model)) {
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llama_decode(lctx, llama_batch_get_one(tmp.data(), std::min(tmp.size(), (size_t) params.n_batch), 0, 0));
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llama_decode(lctx, llama_batch_get_one(tmp.data(), std::min(tmp.size(), (size_t) params.n_batch)));
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}
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llama_kv_cache_clear(lctx);
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llama_synchronize(lctx);
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@ -74,7 +74,6 @@ int main(int argc, char ** argv) {
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batch.n_seq_id + i,
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batch.seq_id + i,
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batch.logits + i,
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0, 0, 0, // unused
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};
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const int ret = llama_decode(ctx, batch_view);
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@ -339,7 +339,7 @@ static bool cb_eval(struct ggml_tensor * t, bool ask, void * user_data) {
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static bool get_hidden_layers(llama_context * ctx, std::vector<llama_token> & tokens) {
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llama_kv_cache_clear(ctx);
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if (llama_decode(ctx, llama_batch_get_one(tokens.data(), tokens.size(), 0, 0))) {
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if (llama_decode(ctx, llama_batch_get_one(tokens.data(), tokens.size()))) {
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fprintf(stderr, "%s : failed to eval\n", __func__);
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return false;
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}
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@ -131,7 +131,7 @@ static bool run(llama_context * ctx, const common_params & params) {
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std::vector<llama_token> tokens = common_tokenize(ctx, params.prompt, add_bos);
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if (llama_decode(ctx, llama_batch_get_one(tokens.data(), tokens.size(), 0, 0))) {
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if (llama_decode(ctx, llama_batch_get_one(tokens.data(), tokens.size()))) {
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LOG_ERR("%s : failed to eval\n", __func__);
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return false;
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}
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@ -496,6 +496,8 @@ static bool compute_imatrix(llama_context * ctx, const common_params & params) {
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// clear the KV cache
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llama_kv_cache_clear(ctx);
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llama_batch batch = llama_batch_init(n_batch, 0, 1);
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for (int j = 0; j < num_batches; ++j) {
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const int batch_start = start + j * n_batch;
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const int batch_size = std::min(end - batch_start, n_batch);
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@ -508,9 +510,14 @@ static bool compute_imatrix(llama_context * ctx, const common_params & params) {
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tokens[batch_start] = llama_token_bos(llama_get_model(ctx));
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}
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// TODO: use batch.logits to save computations instead of relying on logits_all == true
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if (llama_decode(ctx, llama_batch_get_one(tokens.data() + batch_start, batch_size, j * n_batch, 0))) {
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common_batch_clear(batch);
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for (int i = 0; i < batch_size; i++) {
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common_batch_add(batch, tokens[batch_start + i], j*n_batch + i, {0}, true);
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}
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if (llama_decode(ctx, batch)) {
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LOG_ERR("%s : failed to eval\n", __func__);
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llama_batch_free(batch);
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return false;
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}
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@ -523,6 +530,8 @@ static bool compute_imatrix(llama_context * ctx, const common_params & params) {
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}
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}
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llama_batch_free(batch);
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const auto t_end = std::chrono::high_resolution_clock::now();
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if (i == 0) {
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@ -396,7 +396,7 @@ int main(int argc, char ** argv) {
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LOG_DBG("eval: %s\n", string_from(ctx, embd).c_str());
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if (llama_decode(ctx, llama_batch_get_one(&embd[i], n_eval, n_past, 0))) {
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if (llama_decode(ctx, llama_batch_get_one(&embd[i], n_eval))) {
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LOG_ERR("%s : failed to eval\n", __func__);
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return 1;
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}
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@ -1428,7 +1428,7 @@ struct sql_printer : public printer {
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}
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};
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static void test_prompt(llama_context * ctx, int n_prompt, int n_past, int n_batch, int n_threads) {
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static void test_prompt(llama_context * ctx, int n_prompt, int n_batch, int n_threads) {
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llama_set_n_threads(ctx, n_threads, n_threads);
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const llama_model * model = llama_get_model(ctx);
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@ -1444,14 +1444,14 @@ static void test_prompt(llama_context * ctx, int n_prompt, int n_past, int n_bat
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for (int i = 1; i < n_tokens; i++) {
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tokens[i] = std::rand() % n_vocab;
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}
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llama_decode(ctx, llama_batch_get_one(tokens.data(), n_tokens, n_past + n_processed, 0));
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llama_decode(ctx, llama_batch_get_one(tokens.data(), n_tokens));
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n_processed += n_tokens;
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}
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llama_synchronize(ctx);
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}
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static void test_gen(llama_context * ctx, int n_gen, int n_past, int n_threads) {
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static void test_gen(llama_context * ctx, int n_gen, int n_threads) {
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llama_set_n_threads(ctx, n_threads, n_threads);
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const llama_model * model = llama_get_model(ctx);
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@ -1460,7 +1460,7 @@ static void test_gen(llama_context * ctx, int n_gen, int n_past, int n_threads)
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llama_token token = llama_add_bos_token(model) ? llama_token_bos(model) : std::rand() % n_vocab;
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for (int i = 0; i < n_gen; i++) {
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llama_decode(ctx, llama_batch_get_one(&token, 1, n_past + i, 0));
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llama_decode(ctx, llama_batch_get_one(&token, 1));
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llama_synchronize(ctx);
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token = std::rand() % n_vocab;
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}
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@ -1596,13 +1596,13 @@ int main(int argc, char ** argv) {
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fprintf(stderr, "llama-bench: benchmark %d/%ld: warmup prompt run\n", params_idx, params_count);
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}
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//test_prompt(ctx, std::min(t.n_batch, std::min(t.n_prompt, 32)), 0, t.n_batch, t.n_threads);
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test_prompt(ctx, t.n_prompt, 0, t.n_batch, t.n_threads);
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test_prompt(ctx, t.n_prompt, t.n_batch, t.n_threads);
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}
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if (t.n_gen > 0) {
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if (params.progress) {
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fprintf(stderr, "llama-bench: benchmark %d/%ld: warmup generation run\n", params_idx, params_count);
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}
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test_gen(ctx, 1, 0, t.n_threads);
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test_gen(ctx, 1, t.n_threads);
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}
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for (int i = 0; i < params.reps; i++) {
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@ -1614,13 +1614,13 @@ int main(int argc, char ** argv) {
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if (params.progress) {
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fprintf(stderr, "llama-bench: benchmark %d/%ld: prompt run %d/%d\n", params_idx, params_count, i + 1, params.reps);
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}
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test_prompt(ctx, t.n_prompt, 0, t.n_batch, t.n_threads);
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test_prompt(ctx, t.n_prompt, t.n_batch, t.n_threads);
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}
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if (t.n_gen > 0) {
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if (params.progress) {
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fprintf(stderr, "llama-bench: benchmark %d/%ld: generation run %d/%d\n", params_idx, params_count, i + 1, params.reps);
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}
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test_gen(ctx, t.n_gen, t.n_prompt, t.n_threads);
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test_gen(ctx, t.n_gen, t.n_threads);
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}
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uint64_t t_ns = get_time_ns() - t_start;
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@ -283,9 +283,6 @@ Java_android_llama_cpp_LLamaAndroid_new_1batch(JNIEnv *, jobject, jint n_tokens,
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nullptr,
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nullptr,
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nullptr,
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0,
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0,
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0,
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};
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if (embd) {
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@ -20,7 +20,7 @@ static bool eval_tokens(struct llama_context * ctx_llama, std::vector<llama_toke
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if (n_eval > n_batch) {
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n_eval = n_batch;
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}
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if (llama_decode(ctx_llama, llama_batch_get_one(&tokens[i], n_eval, *n_past, 0))) {
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if (llama_decode(ctx_llama, llama_batch_get_one(&tokens[i], n_eval))) {
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LOG_ERR("%s : failed to eval. token %d/%d (batch size %d, n_past %d)\n", __func__, i, N, n_batch, *n_past);
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return false;
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}
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@ -401,6 +401,39 @@ bool llava_image_embed_make_with_clip_img(clip_ctx * ctx_clip, int n_threads, co
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return true;
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}
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struct llava_embd_batch {
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std::vector<llama_pos> pos;
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std::vector<int32_t> n_seq_id;
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std::vector<llama_seq_id> seq_id_0;
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std::vector<llama_seq_id *> seq_ids;
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std::vector<int8_t> logits;
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llama_batch batch;
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llava_embd_batch(float * embd, int32_t n_tokens, llama_pos pos_0, llama_seq_id seq_id) {
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pos .resize(n_tokens);
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n_seq_id.resize(n_tokens);
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seq_ids .resize(n_tokens + 1);
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logits .resize(n_tokens);
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seq_id_0.resize(1);
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seq_id_0[0] = seq_id;
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seq_ids [n_tokens] = nullptr;
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batch = {
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/*n_tokens =*/ n_tokens,
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/*tokens =*/ nullptr,
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/*embd =*/ embd,
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/*pos =*/ pos.data(),
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/*n_seq_id =*/ n_seq_id.data(),
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/*seq_id =*/ seq_ids.data(),
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/*logits =*/ logits.data(),
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};
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for (int i = 0; i < n_tokens; i++) {
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batch.pos [i] = pos_0 + i;
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batch.n_seq_id[i] = 1;
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batch.seq_id [i] = seq_id_0.data();
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batch.logits [i] = false;
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}
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}
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};
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bool llava_eval_image_embed(llama_context * ctx_llama, const struct llava_image_embed * image_embed, int n_batch, int * n_past) {
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int n_embd = llama_n_embd(llama_get_model(ctx_llama));
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@ -409,8 +442,9 @@ bool llava_eval_image_embed(llama_context * ctx_llama, const struct llava_image_
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if (n_eval > n_batch) {
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n_eval = n_batch;
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}
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llama_batch batch = {int32_t(n_eval), nullptr, (image_embed->embed+i*n_embd), nullptr, nullptr, nullptr, nullptr, *n_past, 1, 0, };
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if (llama_decode(ctx_llama, batch)) {
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float * embd = image_embed->embed+i*n_embd;
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llava_embd_batch llava_batch = llava_embd_batch(embd, n_eval, *n_past, 0);
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if (llama_decode(ctx_llama, llava_batch.batch)) {
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LOG_ERR("%s : failed to eval\n", __func__);
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return false;
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}
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@ -97,7 +97,7 @@ static bool eval_tokens(struct llama_context * ctx_llama, std::vector<llama_toke
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if (n_eval > n_batch) {
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n_eval = n_batch;
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}
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if (llama_decode(ctx_llama, llama_batch_get_one(&tokens[i], n_eval, *n_past, 0))) {
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if (llama_decode(ctx_llama, llama_batch_get_one(&tokens[i], n_eval))) {
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LOG_ERR("%s : failed to eval. token %d/%d (batch size %d, n_past %d)\n", __func__, i, N, n_batch, *n_past);
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return false;
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}
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@ -89,8 +89,8 @@ int main(int argc, char ** argv) {
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const auto t_enc_start = ggml_time_us();
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// eval the prompt
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llama_decode(ctx, llama_batch_get_one( inp.data(), n_input - 1, 0, 0));
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llama_decode(ctx, llama_batch_get_one(&inp.back(), 1, n_input - 1, 0));
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llama_decode(ctx, llama_batch_get_one( inp.data(), n_input - 1));
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llama_decode(ctx, llama_batch_get_one(&inp.back(), 1));
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for (int s = 1; s < W + G + 1; ++s) {
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llama_kv_cache_seq_cp(ctx, 0, s, -1, -1);
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@ -89,8 +89,8 @@ int main(int argc, char ** argv){
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const auto t_enc_start = ggml_time_us();
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llama_decode(ctx, llama_batch_get_one( inp.data(), n_input - 1, 0, 0));
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llama_decode(ctx, llama_batch_get_one(&inp.back(), 1, n_input - 1, 0));
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llama_decode(ctx, llama_batch_get_one( inp.data(), n_input - 1));
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llama_decode(ctx, llama_batch_get_one(&inp.back(), 1));
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const auto t_enc_end = ggml_time_us();
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@ -528,7 +528,7 @@ int main(int argc, char ** argv) {
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int enc_input_size = embd_inp.size();
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llama_token * enc_input_buf = embd_inp.data();
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if (llama_encode(ctx, llama_batch_get_one(enc_input_buf, enc_input_size, 0, 0))) {
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if (llama_encode(ctx, llama_batch_get_one(enc_input_buf, enc_input_size))) {
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LOG_ERR("%s : failed to eval\n", __func__);
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return 1;
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}
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@ -648,7 +648,7 @@ int main(int argc, char ** argv) {
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LOG_DBG("eval: %s\n", string_from(ctx, embd).c_str());
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if (llama_decode(ctx, llama_batch_get_one(&embd[i], n_eval, n_past, 0))) {
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if (llama_decode(ctx, llama_batch_get_one(&embd[i], n_eval))) {
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LOG_ERR("%s : failed to eval\n", __func__);
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return 1;
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}
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@ -308,7 +308,6 @@ int main(int argc, char ** argv) {
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batch.n_seq_id + i,
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batch.seq_id + i,
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batch.logits + i,
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0, 0, 0, // unused
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};
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const int ret = llama_decode(ctx, batch_view);
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@ -408,14 +408,21 @@ static results_perplexity perplexity_v2(llama_context * ctx, const common_params
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// clear the KV cache
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llama_kv_cache_clear(ctx);
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llama_batch batch = llama_batch_init(n_batch, 0, 1);
|
||||
|
||||
for (int j = 0; j < num_batches; ++j) {
|
||||
const int batch_start = start + j * n_batch;
|
||||
const int batch_size = std::min(end - batch_start, n_batch);
|
||||
|
||||
common_batch_clear(batch);
|
||||
for (int i = 0; i < batch_size; i++) {
|
||||
common_batch_add(batch, tokens[batch_start + i], j*n_batch + i, {0}, true);
|
||||
}
|
||||
|
||||
//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))) {
|
||||
if (llama_decode(ctx, batch)) {
|
||||
//LOG_ERR("%s : failed to eval\n", __func__);
|
||||
llama_batch_free(batch);
|
||||
return {tokens, -1, logit_history, prob_history};
|
||||
}
|
||||
|
||||
@ -435,6 +442,8 @@ static results_perplexity perplexity_v2(llama_context * ctx, const common_params
|
||||
}
|
||||
}
|
||||
|
||||
llama_batch_free(batch);
|
||||
|
||||
const auto t_end = std::chrono::high_resolution_clock::now();
|
||||
|
||||
if (i == 0) {
|
||||
@ -704,7 +713,6 @@ static bool decode_helper(llama_context * ctx, llama_batch & batch, std::vector<
|
||||
batch.n_seq_id + i,
|
||||
batch.seq_id + i,
|
||||
batch.logits + i,
|
||||
0, 0, 0, // unused
|
||||
};
|
||||
|
||||
const int ret = llama_decode(ctx, batch_view);
|
||||
@ -1791,6 +1799,8 @@ static void kl_divergence(llama_context * ctx, const common_params & params) {
|
||||
// clear the KV cache
|
||||
llama_kv_cache_clear(ctx);
|
||||
|
||||
llama_batch batch = llama_batch_init(n_batch, 0, 1);
|
||||
|
||||
for (int j = 0; j < num_batches; ++j) {
|
||||
const int batch_start = start + j * n_batch;
|
||||
const int batch_size = std::min(end - batch_start, n_batch);
|
||||
@ -1803,9 +1813,14 @@ static void kl_divergence(llama_context * ctx, const common_params & params) {
|
||||
tokens[batch_start] = llama_token_bos(llama_get_model(ctx));
|
||||
}
|
||||
|
||||
// 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))) {
|
||||
common_batch_clear(batch);
|
||||
for (int i = 0; i < batch_size; i++) {
|
||||
common_batch_add(batch, tokens[batch_start + i], j*n_batch + i, {0}, true);
|
||||
}
|
||||
|
||||
if (llama_decode(ctx, batch)) {
|
||||
LOG_ERR("%s : failed to eval\n", __func__);
|
||||
llama_batch_free(batch);
|
||||
return;
|
||||
}
|
||||
|
||||
@ -1818,6 +1833,8 @@ static void kl_divergence(llama_context * ctx, const common_params & params) {
|
||||
}
|
||||
}
|
||||
|
||||
llama_batch_free(batch);
|
||||
|
||||
const auto t_end = std::chrono::high_resolution_clock::now();
|
||||
|
||||
if (i == 0) {
|
||||
|
@ -48,9 +48,16 @@ int main(int argc, char ** argv) {
|
||||
// tokenize prompt
|
||||
auto tokens = common_tokenize(ctx, params.prompt, true);
|
||||
|
||||
// prepare the batch
|
||||
llama_batch batch = llama_batch_init(tokens.size(), 0, 1);
|
||||
for (size_t i = 0; i < tokens.size(); i++) {
|
||||
common_batch_add(batch, tokens[i], i, {0}, false);
|
||||
}
|
||||
batch.logits[batch.n_tokens - 1] = true; // generate next token
|
||||
|
||||
// evaluate prompt
|
||||
llama_decode(ctx, llama_batch_get_one(tokens.data(), tokens.size(), n_past, 0));
|
||||
n_past += tokens.size();
|
||||
llama_decode(ctx, batch);
|
||||
n_past += batch.n_tokens;
|
||||
|
||||
// save state (rng, logits, embedding and kv_cache) to file
|
||||
{
|
||||
@ -77,8 +84,12 @@ int main(int argc, char ** argv) {
|
||||
printf("%s", next_token_str.c_str());
|
||||
result0 += next_token_str;
|
||||
|
||||
if (llama_decode(ctx, llama_batch_get_one(&next_token, 1, n_past, 0))) {
|
||||
common_batch_clear(batch);
|
||||
common_batch_add(batch, next_token, n_past, {0}, true);
|
||||
|
||||
if (llama_decode(ctx, batch)) {
|
||||
fprintf(stderr, "\n%s : failed to evaluate\n", __func__);
|
||||
llama_batch_free(batch);
|
||||
llama_free(ctx);
|
||||
llama_free_model(model);
|
||||
return 1;
|
||||
@ -133,8 +144,12 @@ int main(int argc, char ** argv) {
|
||||
printf("%s", next_token_str.c_str());
|
||||
result1 += next_token_str;
|
||||
|
||||
if (llama_decode(ctx2, llama_batch_get_one(&next_token, 1, n_past, 0))) {
|
||||
common_batch_clear(batch);
|
||||
common_batch_add(batch, next_token, n_past, {0}, true);
|
||||
|
||||
if (llama_decode(ctx2, batch)) {
|
||||
fprintf(stderr, "\n%s : failed to evaluate\n", __func__);
|
||||
llama_batch_free(batch);
|
||||
llama_free(ctx2);
|
||||
llama_free_model(model);
|
||||
return 1;
|
||||
@ -221,8 +236,12 @@ int main(int argc, char ** argv) {
|
||||
printf("%s", next_token_str.c_str());
|
||||
result2 += next_token_str;
|
||||
|
||||
if (llama_decode(ctx3, llama_batch_get_one(&next_token, 1, n_past, 1))) {
|
||||
common_batch_clear(batch);
|
||||
common_batch_add(batch, next_token, n_past, {1}, true);
|
||||
|
||||
if (llama_decode(ctx3, batch)) {
|
||||
fprintf(stderr, "\n%s : failed to evaluate\n", __func__);
|
||||
llama_batch_free(batch);
|
||||
llama_free(ctx3);
|
||||
llama_free_model(model);
|
||||
return 1;
|
||||
@ -236,6 +255,7 @@ int main(int argc, char ** argv) {
|
||||
llama_sampler_free(smpl2);
|
||||
llama_sampler_free(smpl3);
|
||||
|
||||
llama_batch_free(batch);
|
||||
llama_free(ctx3);
|
||||
llama_free_model(model);
|
||||
|
||||
|
@ -2326,7 +2326,6 @@ struct server_context {
|
||||
batch.n_seq_id + i,
|
||||
batch.seq_id + i,
|
||||
batch.logits + i,
|
||||
0, 0, 0, // unused
|
||||
};
|
||||
|
||||
const int ret = llama_decode(ctx, batch_view);
|
||||
|
@ -138,7 +138,7 @@ int main(int argc, char ** argv) {
|
||||
|
||||
// prepare a batch for the prompt
|
||||
|
||||
llama_batch batch = llama_batch_get_one(prompt_tokens.data(), prompt_tokens.size(), 0, 0);
|
||||
llama_batch batch = llama_batch_get_one(prompt_tokens.data(), prompt_tokens.size());
|
||||
|
||||
// main loop
|
||||
|
||||
@ -175,7 +175,7 @@ int main(int argc, char ** argv) {
|
||||
fflush(stdout);
|
||||
|
||||
// prepare the next batch with the sampled token
|
||||
batch = llama_batch_get_one(&new_token_id, 1, n_pos, 0);
|
||||
batch = llama_batch_get_one(&new_token_id, 1);
|
||||
|
||||
n_decode += 1;
|
||||
}
|
||||
|
@ -155,9 +155,9 @@ int main(int argc, char ** argv) {
|
||||
const auto t_enc_start = ggml_time_us();
|
||||
|
||||
// eval the prompt with both models
|
||||
llama_decode(ctx_tgt, llama_batch_get_one( inp.data(), n_input - 1, 0, 0));
|
||||
llama_decode(ctx_tgt, llama_batch_get_one(&inp.back(), 1, n_input - 1, 0));
|
||||
llama_decode(ctx_dft, llama_batch_get_one( inp.data(), n_input, 0, 0));
|
||||
llama_decode(ctx_tgt, llama_batch_get_one( inp.data(), n_input - 1));
|
||||
llama_decode(ctx_tgt, llama_batch_get_one(&inp.back(), 1));
|
||||
llama_decode(ctx_dft, llama_batch_get_one( inp.data(), n_input));
|
||||
|
||||
const auto t_enc_end = ggml_time_us();
|
||||
|
||||
|
@ -232,8 +232,11 @@ extern "C" {
|
||||
// - token : the token ids of the input (used when embd is NULL)
|
||||
// - embd : token embeddings (i.e. float vector of size n_embd) (used when token is NULL)
|
||||
// - pos : the positions of the respective token in the sequence
|
||||
// (if set to NULL, the token position will be tracked automatically by llama_decode)
|
||||
// - seq_id : the sequence to which the respective token belongs
|
||||
// (if set to NULL, the sequence ID will be assumed to be 0)
|
||||
// - logits : if zero, the logits (and/or the embeddings) for the respective token will not be output
|
||||
// (if set to NULL, only the logits for last token will be returned)
|
||||
//
|
||||
typedef struct llama_batch {
|
||||
int32_t n_tokens;
|
||||
@ -244,15 +247,6 @@ extern "C" {
|
||||
int32_t * n_seq_id;
|
||||
llama_seq_id ** seq_id;
|
||||
int8_t * logits; // TODO: rename this to "output"
|
||||
|
||||
// NOTE: helpers for smooth API transition - can be deprecated in the future
|
||||
// for future-proof code, use the above fields instead and ignore everything below
|
||||
//
|
||||
// pos[i] = all_pos_0 + i*all_pos_1
|
||||
//
|
||||
llama_pos all_pos_0; // used if pos == NULL
|
||||
llama_pos all_pos_1; // used if pos == NULL
|
||||
llama_seq_id all_seq_id; // used if seq_id == NULL
|
||||
} llama_batch;
|
||||
|
||||
enum llama_model_kv_override_type {
|
||||
@ -776,15 +770,15 @@ extern "C" {
|
||||
// Decoding
|
||||
//
|
||||
|
||||
// Return batch for single sequence of tokens starting at pos_0
|
||||
// Return batch for single sequence of tokens
|
||||
// The sequence ID will be fixed to 0
|
||||
// The position of the tokens will be tracked automatically by llama_decode
|
||||
//
|
||||
// NOTE: this is a helper function to facilitate transition to the new batch API - avoid using it
|
||||
//
|
||||
LLAMA_API struct llama_batch llama_batch_get_one(
|
||||
llama_token * tokens,
|
||||
int32_t n_tokens,
|
||||
llama_pos pos_0,
|
||||
llama_seq_id seq_id);
|
||||
int32_t n_tokens);
|
||||
|
||||
// Allocates a batch of tokens on the heap that can hold a maximum of n_tokens
|
||||
// Each token can be assigned up to n_seq_max sequence ids
|
||||
|
137
src/llama.cpp
137
src/llama.cpp
@ -2949,9 +2949,6 @@ struct llama_sbatch_seq {
|
||||
llama_seq_id * seq_id;
|
||||
size_t offset;
|
||||
size_t length;
|
||||
|
||||
// helper for smoother batch API transition -- can be deprecated in the future
|
||||
llama_seq_id all_seq_id; // used if seq_id == NULL
|
||||
};
|
||||
|
||||
// sequence-length-aware batch splitting
|
||||
@ -3046,30 +3043,18 @@ struct llama_sbatch {
|
||||
} else {
|
||||
ubatch.embd = nullptr;
|
||||
}
|
||||
// from here on, the else branches are deprecated;
|
||||
// they are helpers for smoother batch API transition
|
||||
if (batch->pos) {
|
||||
if (ubatch.equal_seqs) {
|
||||
for (size_t i = 0; i < length; ++i) {
|
||||
ubatch.pos[ubatch.n_tokens + i] = batch->pos[ids[seq.offset + i]];
|
||||
}
|
||||
} else {
|
||||
// simple split
|
||||
ubatch.pos = batch->pos + seq.offset;
|
||||
if (ubatch.equal_seqs) {
|
||||
for (size_t i = 0; i < length; ++i) {
|
||||
ubatch.pos[ubatch.n_tokens + i] = batch->pos[ids[seq.offset + i]];
|
||||
}
|
||||
} else {
|
||||
for (size_t i = 0; i < length; ++i) {
|
||||
llama_pos bi = ids[seq.offset + i];
|
||||
ubatch.pos[ubatch.n_tokens + i] = batch->all_pos_0 + (bi * batch->all_pos_1);
|
||||
}
|
||||
// simple split
|
||||
ubatch.pos = batch->pos + seq.offset;
|
||||
}
|
||||
if (ubatch.equal_seqs) {
|
||||
ubatch.n_seq_id[ubatch.n_seqs] = seq.n_seq_id;
|
||||
if (seq.seq_id) {
|
||||
ubatch.seq_id[ubatch.n_seqs] = seq.seq_id;
|
||||
} else {
|
||||
GGML_ASSERT(seq.n_seq_id == 1);
|
||||
ubatch.seq_id[ubatch.n_seqs] = &seq.all_seq_id;
|
||||
}
|
||||
} else {
|
||||
// simple split
|
||||
@ -3082,10 +3067,6 @@ struct llama_sbatch {
|
||||
}
|
||||
if (batch->seq_id) {
|
||||
ubatch.seq_id = batch->seq_id + seq.offset;
|
||||
} else {
|
||||
for (size_t i = 0; i < length; ++i) {
|
||||
ubatch.seq_id[ubatch.n_seqs + i] = &seq.all_seq_id;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (logits_all) {
|
||||
@ -3204,7 +3185,6 @@ struct llama_sbatch {
|
||||
s.seq_id = nullptr;
|
||||
s.offset = 0;
|
||||
s.length = n_tokens;
|
||||
s.all_seq_id = batch.all_seq_id;
|
||||
return;
|
||||
}
|
||||
std::sort(ids.begin(), ids.end(),
|
||||
@ -3227,7 +3207,7 @@ struct llama_sbatch {
|
||||
if (batch.pos) {
|
||||
return batch.pos[a] < batch.pos[b];
|
||||
}
|
||||
// no pos, sort by id (assuming batch.all_pos_1 is positive)
|
||||
// no pos, sort by id
|
||||
return a < b;
|
||||
}
|
||||
// shared prompts go first
|
||||
@ -3237,30 +3217,25 @@ struct llama_sbatch {
|
||||
// init seq
|
||||
llama_sbatch_seq * last_seq = nullptr;
|
||||
|
||||
if (batch.n_seq_id != nullptr && batch.seq_id != nullptr) {
|
||||
for (size_t i = 0; i < n_tokens; ++i) {
|
||||
const size_t bi = ids[i];
|
||||
const int32_t n_seqs = batch.n_seq_id[bi];
|
||||
llama_seq_id * seq_ids = batch.seq_id[bi];
|
||||
if (last_seq != nullptr) {
|
||||
bool same = n_seqs == last_seq->n_seq_id;
|
||||
for (int32_t j = 0; same && j < n_seqs; ++j) {
|
||||
if (seq_ids[j] != last_seq->seq_id[j]) {
|
||||
same = false;
|
||||
}
|
||||
}
|
||||
if (same) {
|
||||
last_seq->length += 1;
|
||||
continue;
|
||||
for (size_t i = 0; i < n_tokens; ++i) {
|
||||
const size_t bi = ids[i];
|
||||
const int32_t n_seqs = batch.n_seq_id[bi];
|
||||
llama_seq_id * seq_ids = batch.seq_id[bi];
|
||||
if (last_seq != nullptr) {
|
||||
bool same = n_seqs == last_seq->n_seq_id;
|
||||
for (int32_t j = 0; same && j < n_seqs; ++j) {
|
||||
if (seq_ids[j] != last_seq->seq_id[j]) {
|
||||
same = false;
|
||||
}
|
||||
}
|
||||
llama_sbatch_seq new_seq = {n_seqs, seq_ids, i, 1, batch.all_seq_id};
|
||||
seq.push_back(new_seq);
|
||||
last_seq = &seq.back();
|
||||
if (same) {
|
||||
last_seq->length += 1;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
llama_sbatch_seq new_seq = {1, nullptr, 0, n_tokens, batch.all_seq_id};
|
||||
llama_sbatch_seq new_seq = {n_seqs, seq_ids, i, 1};
|
||||
seq.push_back(new_seq);
|
||||
last_seq = &seq.back();
|
||||
}
|
||||
// keep shared prompts first at the end, then sort by length descending.
|
||||
std::sort(seq.begin(), seq.end(),
|
||||
@ -21096,9 +21071,7 @@ void llama_set_causal_attn(struct llama_context * ctx, bool causal_attn) {
|
||||
|
||||
struct llama_batch llama_batch_get_one(
|
||||
llama_token * tokens,
|
||||
int32_t n_tokens,
|
||||
llama_pos pos_0,
|
||||
llama_seq_id seq_id) {
|
||||
int32_t n_tokens) {
|
||||
return {
|
||||
/*n_tokens =*/ n_tokens,
|
||||
/*tokens =*/ tokens,
|
||||
@ -21107,9 +21080,6 @@ struct llama_batch llama_batch_get_one(
|
||||
/*n_seq_id =*/ nullptr,
|
||||
/*seq_id =*/ nullptr,
|
||||
/*logits =*/ nullptr,
|
||||
/*all_pos_0 =*/ pos_0,
|
||||
/*all_pos_1 =*/ 1,
|
||||
/*all_seq_id =*/ seq_id,
|
||||
};
|
||||
}
|
||||
|
||||
@ -21122,9 +21092,6 @@ struct llama_batch llama_batch_init(int32_t n_tokens_alloc, int32_t embd, int32_
|
||||
/*n_seq_id =*/ nullptr,
|
||||
/*seq_id =*/ nullptr,
|
||||
/*logits =*/ nullptr,
|
||||
/*all_pos_0 =*/ 0,
|
||||
/*all_pos_1 =*/ 0,
|
||||
/*all_seq_id =*/ 0,
|
||||
};
|
||||
|
||||
if (embd) {
|
||||
@ -21160,11 +21127,62 @@ void llama_batch_free(struct llama_batch batch) {
|
||||
if (batch.logits) free(batch.logits);
|
||||
}
|
||||
|
||||
// temporary allocate memory for the input batch if needed
|
||||
static const llama_seq_id batch_default_seq_id = 0;
|
||||
struct llama_batch_allocr {
|
||||
std::array<llama_seq_id, 1> seq_id_0 = {batch_default_seq_id};
|
||||
std::vector<llama_pos> pos;
|
||||
std::vector<int32_t> n_seq_id;
|
||||
std::vector<llama_seq_id *> seq_id;
|
||||
std::vector<int8_t> logits;
|
||||
struct llama_batch batch;
|
||||
// optionally fulfill the batch returned by llama_batch_get_one
|
||||
llama_batch_allocr(struct llama_context * ctx, struct llama_batch in_batch) {
|
||||
batch = in_batch;
|
||||
if (!batch.pos) {
|
||||
// determine the last position in KV cache
|
||||
llama_pos last_pos = -1;
|
||||
for (const auto & cell : ctx->kv_self.cells) {
|
||||
if (cell.has_seq_id(batch_default_seq_id)) {
|
||||
last_pos = std::max(last_pos, cell.pos);
|
||||
}
|
||||
}
|
||||
last_pos++; // next position
|
||||
pos.resize(batch.n_tokens);
|
||||
for (int32_t i = 0; i < batch.n_tokens; i++) {
|
||||
pos[i] = i+last_pos;
|
||||
}
|
||||
batch.pos = pos.data();
|
||||
}
|
||||
if (!batch.n_seq_id) {
|
||||
n_seq_id.resize(batch.n_tokens);
|
||||
for (int32_t i = 0; i < batch.n_tokens; i++) {
|
||||
n_seq_id[i] = seq_id_0.size();
|
||||
}
|
||||
batch.n_seq_id = n_seq_id.data();
|
||||
}
|
||||
if (!batch.seq_id) {
|
||||
seq_id.resize(batch.n_tokens + 1);
|
||||
seq_id[batch.n_tokens] = NULL;
|
||||
for (int32_t i = 0; i < batch.n_tokens; i++) {
|
||||
seq_id[i] = seq_id_0.data();
|
||||
}
|
||||
batch.seq_id = seq_id.data();
|
||||
}
|
||||
if (!batch.logits) {
|
||||
logits.resize(batch.n_tokens);
|
||||
logits[logits.size() - 1] = true;
|
||||
batch.logits = logits.data();
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
int32_t llama_encode(
|
||||
struct llama_context * ctx,
|
||||
struct llama_batch batch) {
|
||||
const int ret = llama_encode_internal(*ctx, batch);
|
||||
if (ret < 0) {
|
||||
llama_batch_allocr batch_allocr(ctx, batch);
|
||||
const int ret = llama_encode_internal(*ctx, batch_allocr.batch);
|
||||
if (ret != 0) {
|
||||
LLAMA_LOG_ERROR("%s: failed to encode, ret = %d\n", __func__, ret);
|
||||
}
|
||||
|
||||
@ -21174,8 +21192,9 @@ int32_t llama_encode(
|
||||
int32_t llama_decode(
|
||||
struct llama_context * ctx,
|
||||
struct llama_batch batch) {
|
||||
const int ret = llama_decode_internal(*ctx, batch);
|
||||
if (ret < 0) {
|
||||
llama_batch_allocr batch_allocr(ctx, batch);
|
||||
const int ret = llama_decode_internal(*ctx, batch_allocr.batch);
|
||||
if (ret != 0) {
|
||||
LLAMA_LOG_ERROR("%s: failed to decode, ret = %d\n", __func__, ret);
|
||||
}
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user