diff options
Diffstat (limited to 'llama.cpp')
| -rw-r--r-- | llama.cpp | 425 |
1 files changed, 422 insertions, 3 deletions
@@ -424,6 +424,14 @@ static std::map<llm_arch, std::map<llm_tensor, std::string>> LLM_TENSOR_NAMES = LLM_ARCH_MPT, { { LLM_TENSOR_TOKEN_EMBD, "token_embd" }, + { LLM_TENSOR_OUTPUT_NORM, "output_norm" }, + { LLM_TENSOR_OUTPUT, "output" }, + { LLM_TENSOR_ATTN_NORM, "blk.%d.attn_norm" }, + { LLM_TENSOR_FFN_NORM, "blk.%d.ffn_norm" }, + { LLM_TENSOR_ATTN_QKV, "blk.%d.attn_qkv" }, + { LLM_TENSOR_ATTN_OUT, "blk.%d.attn_output" }, + { LLM_TENSOR_FFN_DOWN, "blk.%d.ffn_down" }, + { LLM_TENSOR_FFN_UP, "blk.%d.ffn_up" }, }, }, { @@ -1011,6 +1019,9 @@ struct llama_hparams { float rope_freq_base_train; float rope_freq_scale_train; + float f_clamp_kqv; + float f_max_alibi_bias; + bool operator!=(const llama_hparams & other) const { if (this->vocab_only != other.vocab_only) return true; if (this->n_vocab != other.n_vocab) return true; @@ -2060,6 +2071,20 @@ static void llm_load_hparams( default: model.type = e_model::MODEL_UNKNOWN; } } break; + case LLM_ARCH_MPT: + { + hparams.f_clamp_kqv = 0.0f; + + GGUF_GET_KEY(ctx, hparams.f_norm_eps, gguf_get_val_f32, GGUF_TYPE_FLOAT32, true, kv(LLM_KV_ATTENTION_LAYERNORM_EPS)); + GGUF_GET_KEY(ctx, hparams.f_clamp_kqv, gguf_get_val_f32, GGUF_TYPE_FLOAT32, false, kv(LLM_KV_ATTENTION_CLAMP_KQV)); + GGUF_GET_KEY(ctx, hparams.f_max_alibi_bias, gguf_get_val_f32, GGUF_TYPE_FLOAT32, true, kv(LLM_KV_ATTENTION_MAX_ALIBI_BIAS)); + + switch (hparams.n_layer) { + case 32: model.type = e_model::MODEL_7B; break; + case 48: model.type = e_model::MODEL_30B; break; + default: model.type = e_model::MODEL_UNKNOWN; + } + } break; default: (void)0; } @@ -2204,6 +2229,8 @@ static void llm_load_print_meta(llama_model_loader & ml, llama_model & model) { LLAMA_LOG_INFO("%s: n_gqa = %u\n", __func__, hparams.n_gqa()); LLAMA_LOG_INFO("%s: f_norm_eps = %.1e\n", __func__, hparams.f_norm_eps); LLAMA_LOG_INFO("%s: f_norm_rms_eps = %.1e\n", __func__, hparams.f_norm_rms_eps); + LLAMA_LOG_INFO("%s: f_clamp_kqv = %.1e\n", __func__, hparams.f_clamp_kqv); + LLAMA_LOG_INFO("%s: f_max_alibi_bias = %.1e\n", __func__, hparams.f_max_alibi_bias); LLAMA_LOG_INFO("%s: n_ff = %u\n", __func__, hparams.n_ff); LLAMA_LOG_INFO("%s: freq_base_train = %.1f\n", __func__, hparams.rope_freq_base_train); LLAMA_LOG_INFO("%s: freq_scale_train = %g\n", __func__, hparams.rope_freq_scale_train); @@ -2649,6 +2676,73 @@ static void llm_load_tensors( layer.attn_k_norm_b = ml.create_tensor(ctx, tn(LLM_TENSOR_ATTN_K_NORM, "bias", i), {64}, backend); } } break; + case LLM_ARCH_MPT: + { + model.tok_embeddings = ml.create_tensor(ctx, tn(LLM_TENSOR_TOKEN_EMBD, "weight"), {n_embd, n_vocab}, GGML_BACKEND_CPU); + + // output + { + ggml_backend_type backend_norm; + ggml_backend_type backend_output; + + if (n_gpu_layers > int(n_layer)) { + // norm is not performance relevant on its own but keeping it in VRAM reduces data copying + // on Windows however this is detrimental unless everything is on the GPU +#ifndef _WIN32 + backend_norm = LLAMA_BACKEND_OFFLOAD; +#else + backend_norm = n_gpu_layers <= (int) n_layer + 2 ? GGML_BACKEND_CPU : LLAMA_BACKEND_OFFLOAD; +#endif // _WIN32 + + backend_output = LLAMA_BACKEND_OFFLOAD_SPLIT; + } else { + backend_norm = GGML_BACKEND_CPU; + backend_output = GGML_BACKEND_CPU; + } + + model.output_norm = ml.create_tensor(ctx, tn(LLM_TENSOR_OUTPUT_NORM, "weight"), {n_embd}, backend_norm); + model.output = ml.create_tensor(ctx, tn(LLM_TENSOR_OUTPUT, "weight"), {n_embd, n_vocab}, backend_output); + + if (backend_norm == GGML_BACKEND_GPU) { + vram_weights += ggml_nbytes(model.output_norm); + } + if (backend_output == GGML_BACKEND_GPU_SPLIT) { + vram_weights += ggml_nbytes(model.output); + } + } + + const uint32_t n_ff = hparams.n_ff; + + const int i_gpu_start = n_layer - n_gpu_layers; + + model.layers.resize(n_layer); + + for (uint32_t i = 0; i < n_layer; ++i) { + const ggml_backend_type backend = int(i) < i_gpu_start ? GGML_BACKEND_CPU : LLAMA_BACKEND_OFFLOAD; // NOLINT + const ggml_backend_type backend_split = int(i) < i_gpu_start ? GGML_BACKEND_CPU : LLAMA_BACKEND_OFFLOAD_SPLIT; // NOLINT + + auto & layer = model.layers[i]; + + layer.attn_norm = ml.create_tensor(ctx, tn(LLM_TENSOR_ATTN_NORM, "weight", i), {n_embd}, backend); + layer.wqkv = ml.create_tensor(ctx, tn(LLM_TENSOR_ATTN_QKV, "weight", i), {n_embd, 3*n_embd}, backend_split); + layer.wo = ml.create_tensor(ctx, tn(LLM_TENSOR_ATTN_OUT, "weight", i), {n_embd, n_embd}, backend_split); + + layer.ffn_norm = ml.create_tensor(ctx, tn(LLM_TENSOR_FFN_NORM, "weight", i), {n_embd}, backend); + + layer.w2 = ml.create_tensor(ctx, tn(LLM_TENSOR_FFN_DOWN, "weight", i), { n_ff, n_embd}, backend_split); + layer.w3 = ml.create_tensor(ctx, tn(LLM_TENSOR_FFN_UP, "weight", i), {n_embd, n_ff}, backend_split); + + if (backend == GGML_BACKEND_GPU) { + vram_weights += + ggml_nbytes(layer.attn_norm) + + ggml_nbytes(layer.wqkv) + + ggml_nbytes(layer.wo) + + ggml_nbytes(layer.ffn_norm) + + ggml_nbytes(layer.w2) + + ggml_nbytes(layer.w3); + } + } + } break; default: throw std::runtime_error("unknown architecture"); } @@ -4505,7 +4599,6 @@ static struct ggml_cgraph * llm_build_starcoder( return gf; } - static struct ggml_cgraph * llm_build_persimmon( llama_context & lctx, const llama_batch & batch) { @@ -4903,6 +4996,326 @@ static struct ggml_cgraph * llm_build_persimmon( return gf; } +static struct ggml_cgraph * llm_build_mpt( + llama_context & lctx, + const llama_batch & batch) { + const auto & model = lctx.model; + const auto & hparams = model.hparams; + const auto & cparams = lctx.cparams; + + const auto & kv_self = lctx.kv_self; + + GGML_ASSERT(!!kv_self.ctx); + + const int64_t n_embd = hparams.n_embd; + const int64_t n_layer = hparams.n_layer; + const int64_t n_ctx = cparams.n_ctx; + const int64_t n_head = hparams.n_head; + const int64_t n_head_kv = hparams.n_head_kv; // == n_head for MPT, as there's no MQA/GQA + const int64_t n_embd_head = hparams.n_embd_head(); + const int64_t n_embd_gqa = hparams.n_embd_gqa(); + + const float norm_eps = hparams.f_norm_eps; + const float clamp_kqv = hparams.f_clamp_kqv; + const float max_alibi_bias = hparams.f_max_alibi_bias; + + const int n_gpu_layers = model.n_gpu_layers; + + const int32_t n_tokens = batch.n_tokens; + const int32_t n_kv = ggml_allocr_is_measure(lctx.alloc) ? n_ctx : kv_self.n; + const int32_t kv_head = ggml_allocr_is_measure(lctx.alloc) ? n_ctx - n_tokens : kv_self.head; + + //printf("kv_head = %d, n_kv = %d, n_tokens = %d, n_ctx = %d, is_measure = %d, has_shift = %d\n", + // kv_head, n_kv, n_tokens, n_ctx, ggml_allocr_is_measure(lctx.alloc), kv_self.has_shift); + + auto & buf_compute = lctx.buf_compute; + + struct ggml_init_params params = { + /*.mem_size =*/ buf_compute.size, + /*.mem_buffer =*/ buf_compute.data, + /*.no_alloc =*/ false, + }; + + params.no_alloc = true; + + struct ggml_context * ctx0 = ggml_init(params); + + ggml_cgraph * gf = ggml_new_graph(ctx0); + + struct ggml_tensor * cur; + struct ggml_tensor * inpL; + + //int warmup = 0; + if (batch.token) { + struct ggml_tensor * inp_tokens = ggml_new_tensor_1d(ctx0, GGML_TYPE_I32, n_tokens); + + ggml_allocr_alloc(lctx.alloc, inp_tokens); + if (!ggml_allocr_is_measure(lctx.alloc)) { + memcpy(inp_tokens->data, batch.token, n_tokens*ggml_element_size(inp_tokens)); + //warmup = ((uint32_t*) inp_tokens->data)[0] == 0; + } + + ggml_set_name(inp_tokens, "inp_tokens"); + + inpL = ggml_get_rows(ctx0, model.tok_embeddings, inp_tokens); + } else { +#ifdef GGML_USE_MPI + GGML_ASSERT(false && "not implemented"); +#endif + + inpL = ggml_new_tensor_2d(ctx0, GGML_TYPE_F32, n_embd, n_tokens); + + ggml_allocr_alloc(lctx.alloc, inpL); + if (!ggml_allocr_is_measure(lctx.alloc)) { + memcpy(inpL->data, batch.embd, n_tokens * n_embd * ggml_element_size(inpL)); + } + } + + const int i_gpu_start = n_layer - n_gpu_layers; + (void) i_gpu_start; + + // offload functions set the tensor output backend to GPU + // tensors are GPU-accelerated if any input or the output has been offloaded + offload_func_t offload_func_nr = llama_nop; // nr = non-repeating + offload_func_t offload_func_kq = llama_nop; + offload_func_t offload_func_v = llama_nop; + +#ifdef GGML_USE_CUBLAS + if (n_gpu_layers > n_layer) { + offload_func_nr = ggml_cuda_assign_buffers_no_alloc; + } + if (n_gpu_layers > n_layer + 1) { + offload_func_v = ggml_cuda_assign_buffers_no_alloc; + } + if (n_gpu_layers > n_layer + 2) { + offload_func_kq = ggml_cuda_assign_buffers_no_alloc; + } +#endif // GGML_USE_CUBLAS + + // KQ_scale + struct ggml_tensor * KQ_scale = ggml_new_tensor_1d(ctx0, GGML_TYPE_F32, 1); + ggml_set_name(KQ_scale, "1/sqrt(n_embd_head)"); + ggml_allocr_alloc(lctx.alloc, KQ_scale); + if (!ggml_allocr_is_measure(lctx.alloc)) { + ggml_set_f32(KQ_scale, 1.0f/sqrtf(float(n_embd)/n_head)); + } + + // KQ_mask (mask for 1 head, it will be broadcasted to all heads) + struct ggml_tensor * KQ_mask = ggml_new_tensor_3d(ctx0, GGML_TYPE_F32, n_kv, n_tokens, 1); + offload_func_kq(KQ_mask); + ggml_set_name(KQ_mask, "KQ_mask"); + ggml_allocr_alloc(lctx.alloc, KQ_mask); + if (!ggml_allocr_is_measure(lctx.alloc)) { + float * data = (float *) KQ_mask->data; + memset(data, 0, ggml_nbytes(KQ_mask)); + + for (int h = 0; h < 1; ++h) { + for (int j = 0; j < n_tokens; ++j) { + const llama_pos pos = batch.pos[j]; + const llama_seq_id seq_id = batch.seq_id[j]; + + for (int i = 0; i < n_kv; ++i) { + if (!kv_self.cells[i].has_seq_id(seq_id) || kv_self.cells[i].pos > pos) { + data[h*(n_kv*n_tokens) + j*n_kv + i] = -INFINITY; + } + } + } + } + } + + for (int il = 0; il < n_layer; ++il) { + struct ggml_tensor * attn_norm; + + offload_func_t offload_func = llama_nop; + +#ifdef GGML_USE_CUBLAS + if (il >= i_gpu_start) { + offload_func = ggml_cuda_assign_buffers_no_alloc; + } +#endif // GGML_USE_CUBLAS + + // self-attention + // TODO: refactor into common function (shared with LLaMA) + { + attn_norm = ggml_norm(ctx0, inpL, norm_eps); + offload_func(attn_norm); + + attn_norm = ggml_mul(ctx0, attn_norm, model.layers[il].attn_norm); + offload_func(attn_norm); + + if (1) { + cur = attn_norm; + } + + // compute QKV + + cur = ggml_mul_mat(ctx0, model.layers[il].wqkv, cur); + offload_func_kq(cur); + + if (clamp_kqv > 0.0f) { + cur = ggml_clamp(ctx0, cur, -clamp_kqv, clamp_kqv); + offload_func_kq(cur); + } + + const size_t wsize = ggml_type_size(cur->type); + + struct ggml_tensor * Qcur = ggml_view_3d( + ctx0, cur, n_embd_head, n_head, n_tokens, + wsize * n_embd_head, + wsize * n_embd_head * (n_head + 2 * n_head_kv), + 0); + offload_func_kq(Qcur); + + struct ggml_tensor * Kcur = ggml_view_3d( + ctx0, cur, n_embd_head, n_head_kv, n_tokens, + wsize * n_embd_head, + wsize * n_embd_head * (n_head + 2 * n_head_kv), + wsize * n_embd_head * n_head); + offload_func_kq(Kcur); + + struct ggml_tensor * tmpv = ggml_view_3d( + ctx0, cur, n_embd_head, n_head_kv, n_tokens, + wsize * n_embd_head, + wsize * n_embd_head * (n_head + 2 * n_head_kv), + wsize * n_embd_head * (n_head + n_head_kv)); + offload_func_kq(Kcur); + + ggml_set_name(Qcur, "Qcur"); + ggml_set_name(Kcur, "Kcur"); + + { + struct ggml_tensor * Vcur = ggml_transpose(ctx0, ggml_reshape_2d(ctx0, ggml_cont(ctx0, tmpv), n_embd_gqa, n_tokens)); + offload_func_v(Vcur); + offload_func_v(Vcur->src[0]->src[0]); + ggml_set_name(Vcur, "Vcur"); + + struct ggml_tensor * k = ggml_view_1d(ctx0, kv_self.k, n_tokens*n_embd_gqa, (ggml_element_size(kv_self.k)*n_embd_gqa)*(il*n_ctx + kv_head)); + offload_func_kq(k); + ggml_set_name(k, "k"); + + struct ggml_tensor * v = ggml_view_2d(ctx0, kv_self.v, n_tokens, n_embd_gqa, + ( n_ctx)*ggml_element_size(kv_self.v), + (il*n_ctx)*ggml_element_size(kv_self.v)*n_embd_gqa + kv_head*ggml_element_size(kv_self.v)); + offload_func_v(v); + + ggml_build_forward_expand(gf, ggml_cpy(ctx0, Kcur, k)); + ggml_build_forward_expand(gf, ggml_cpy(ctx0, Vcur, v)); + } + + struct ggml_tensor * Q = ggml_permute(ctx0, Qcur, 0, 2, 1, 3); + offload_func_kq(Q); + ggml_set_name(Q, "Q"); + + struct ggml_tensor * K = + ggml_view_3d(ctx0, kv_self.k, + n_embd_head, n_kv, n_head_kv, + ggml_element_size(kv_self.k)*n_embd_gqa, + ggml_element_size(kv_self.k)*n_embd_head, + ggml_element_size(kv_self.k)*n_embd_gqa*n_ctx*il); + offload_func_kq(K); + ggml_set_name(K, "K"); + + struct ggml_tensor * KQ = ggml_mul_mat(ctx0, K, Q); + offload_func_kq(KQ); + ggml_set_name(KQ, "KQ"); + + struct ggml_tensor * KQ_scaled = ggml_scale(ctx0, KQ, KQ_scale); + offload_func_kq(KQ_scaled); + ggml_set_name(KQ_scaled, "KQ_scaled"); + + // TODO: replace with ggml_add() + struct ggml_tensor * KQ_scaled_alibi = + ggml_alibi(ctx0, KQ_scaled, 0, n_head, max_alibi_bias); + offload_func_kq(KQ_scaled_alibi); + ggml_set_name(KQ_scaled_alibi, "KQ_scaled_alibi"); + + struct ggml_tensor * KQ_masked = ggml_add(ctx0, KQ_scaled_alibi, KQ_mask); + offload_func_kq(KQ_masked); + ggml_set_name(KQ_masked, "KQ_masked"); + + struct ggml_tensor * KQ_soft_max = ggml_soft_max(ctx0, KQ_masked); + offload_func_v(KQ_soft_max); + ggml_set_name(KQ_soft_max, "KQ_soft_max"); + + struct ggml_tensor * V = + ggml_view_3d(ctx0, kv_self.v, + n_kv, n_embd_head, n_head_kv, + ggml_element_size(kv_self.v)*n_ctx, + ggml_element_size(kv_self.v)*n_ctx*n_embd_head, + ggml_element_size(kv_self.v)*n_ctx*n_embd_gqa*il); + offload_func_v(V); + ggml_set_name(V, "V"); + + struct ggml_tensor * KQV = ggml_mul_mat(ctx0, V, KQ_soft_max); + offload_func_v(KQV); + ggml_set_name(KQV, "KQV"); + + struct ggml_tensor * KQV_merged = ggml_permute(ctx0, KQV, 0, 2, 1, 3); + offload_func_v(KQV_merged); + ggml_set_name(KQV_merged, "KQV_merged"); + + cur = ggml_cont_2d(ctx0, KQV_merged, n_embd, n_tokens); + offload_func_v(cur); + ggml_set_name(cur, "KQV_merged_contiguous"); + + cur = ggml_mul_mat(ctx0, model.layers[il].wo, cur); + offload_func(cur); + ggml_set_name(cur, "result_wo"); + } + + // Add the input + cur = ggml_add(ctx0, cur, inpL); + offload_func(cur); + + struct ggml_tensor * attn_out = cur; + + // feed forward + { + // Norm + { + cur = ggml_norm(ctx0, attn_out, norm_eps); + offload_func(cur); + + cur = ggml_mul(ctx0, cur, model.layers[il].ffn_norm); + offload_func(cur); + } + + cur = ggml_mul_mat(ctx0, model.layers[il].w3, cur); + offload_func(cur); + + cur = ggml_gelu(ctx0, cur); + offload_func(cur); + cur = ggml_mul_mat(ctx0, model.layers[il].w2, cur); + offload_func(cur); + } + + cur = ggml_add(ctx0, cur, attn_out); + offload_func(cur); + // input for next layer + inpL = cur; + } + + cur = inpL; + + // norm + { + cur = ggml_norm(ctx0, cur, norm_eps); + offload_func_nr(cur); + + cur = ggml_mul(ctx0, cur, model.output_norm); + ggml_set_name(cur, "result_norm"); + } + + cur = ggml_mul_mat(ctx0, model.output, cur); + ggml_set_name(cur, "result_output"); + + ggml_build_forward_expand(gf, cur); + + ggml_free(ctx0); + + return gf; +} + static struct ggml_cgraph * llama_build_graph( llama_context & lctx, const llama_batch & batch) { @@ -4935,6 +5348,10 @@ static struct ggml_cgraph * llama_build_graph( { result = llm_build_refact(lctx, batch); } break; + case LLM_ARCH_MPT: + { + result = llm_build_mpt(lctx, batch); + } break; default: GGML_ASSERT(false); } @@ -5065,7 +5482,8 @@ static int llama_decode_internal( const bool full_offload_supported = model.arch == LLM_ARCH_LLAMA || model.arch == LLM_ARCH_BAICHUAN || model.arch == LLM_ARCH_FALCON || - model.arch == LLM_ARCH_REFACT; + model.arch == LLM_ARCH_REFACT || + model.arch == LLM_ARCH_MPT; const bool fully_offloaded = model.n_gpu_layers >= (int) hparams.n_layer + 3; if (ggml_cpu_has_cublas() && full_offload_supported && fully_offloaded) { n_threads = 1; @@ -7161,7 +7579,8 @@ static void llama_model_quantize_internal(const std::string & fname_inp, const s const std::string name = ggml_get_name(meta); // TODO: avoid hardcoded tensor names - use the TN_* constants - if (name.find("attn_v.weight") != std::string::npos) { + if (name.find("attn_v.weight") != std::string::npos || + name.find("attn_qkv.weight") != std::string::npos) { ++n_attention_wv; } else if (name.find("ffn_down.weight") != std::string::npos) { |