diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 67c7807e09..58d76fd7e9 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -90,6 +90,7 @@ add_library(llama models/mamba.cpp models/minicpm3.cpp models/minimax-m2.cpp + models/modern-bert.cpp models/mpt.cpp models/nemotron-h.cpp models/nemotron.cpp diff --git a/src/models/models.h b/src/models/models.h index 7ba225b478..ee1e155d5b 100644 --- a/src/models/models.h +++ b/src/models/models.h @@ -322,6 +322,11 @@ struct llm_build_minimax_m2 : public llm_graph_context { llm_build_minimax_m2(const llama_model & model, const llm_graph_params & params); }; +template +struct llm_build_modern_bert : public llm_graph_context { + llm_build_modern_bert(const llama_model & model, const llm_graph_params & params); +}; + struct llm_build_mpt : public llm_graph_context { llm_build_mpt(const llama_model & model, const llm_graph_params & params); }; diff --git a/src/models/modern-bert.cpp b/src/models/modern-bert.cpp new file mode 100644 index 0000000000..90031c748b --- /dev/null +++ b/src/models/modern-bert.cpp @@ -0,0 +1,126 @@ +#include "models.h" + +template +llm_build_modern_bert::llm_build_modern_bert(const llama_model & model, const llm_graph_params & params) : llm_graph_context(params) { + const int64_t n_embd_head = hparams.n_embd_head_v; + const int64_t n_embd_gqa = hparams.n_embd_v_gqa(); + const float rope_theta_global = hparams.rope_freq_base_train; + const float rope_theta_local = hparams.rope_freq_base_train_swa; + const uint32_t n_swa_pattern = hparams.n_swa_pattern; + + GGML_ASSERT(n_embd_head == hparams.n_embd_head_k); + + ggml_tensor * cur = nullptr; + ggml_tensor * inpL = nullptr; + ggml_tensor * inp_pos = build_inp_pos(); + + // construct input embeddings (token, type, position) + inpL = build_inp_embd(model.tok_embd); + cb(inpL, "inp_embd", -1); + + // embed layer norm + inpL = build_norm(inpL, model.tok_norm, nullptr, LLM_NORM, -1); + cb(inpL, "inp_norm", -1); + + ggml_tensor * inp_out_ids = build_inp_out_ids(); + + auto * inp_attn = build_attn_inp_no_cache(); + + for (int il = 0; il < n_layer; ++il) { + ggml_tensor * cur = inpL; + + ggml_tensor * Qcur = nullptr; + ggml_tensor * Kcur = nullptr; + ggml_tensor * Vcur = nullptr; + + const float rope_theta = (il % n_swa_pattern == 0) ? rope_theta_global : rope_theta_local; + + // attention layer norm + if (model.layers[il].attn_norm) { + cur = build_norm(inpL, + model.layers[il].attn_norm, NULL, + LLM_NORM, il); + cb(cur, "attn_norm", il); + } + + // self attention + cur = build_lora_mm(model.layers[il].wqkv, cur); + cb(cur, "wqkv", il); + + const size_t type_size = ggml_type_size(cur->type); + + Qcur = ggml_view_3d(ctx0, cur, n_embd_head, n_head, n_tokens, n_embd_head*type_size, cur->nb[1], 0*type_size*(n_embd)); + Kcur = ggml_view_3d(ctx0, cur, n_embd_head, n_head_kv, n_tokens, n_embd_head*type_size, cur->nb[1], 1*type_size*(n_embd)); + Vcur = ggml_view_3d(ctx0, cur, n_embd_head, n_head_kv, n_tokens, n_embd_head*type_size, cur->nb[1], 1*type_size*(n_embd + n_embd_gqa)); + + // RoPE + Qcur = ggml_rope_ext( + ctx0, Qcur, inp_pos, nullptr, + n_rot, rope_type, n_ctx_orig, rope_theta, freq_scale, + ext_factor, attn_factor, beta_fast, beta_slow + ); + + Kcur = ggml_rope_ext( + ctx0, Kcur, inp_pos, nullptr, + n_rot, rope_type, n_ctx_orig, rope_theta, freq_scale, + ext_factor, attn_factor, beta_fast, beta_slow + ); + + cb(Qcur, "Qcur", il); + cb(Kcur, "Kcur", il); + cb(Vcur, "Vcur", il); + + cur = build_attn(inp_attn, + model.layers[il].wo, nullptr, + Qcur, Kcur, Vcur, nullptr, nullptr, nullptr, 1.0f/sqrtf(float(n_embd_head)), il); + cb(cur, "kqv_out", il); + + if (il == n_layer - 1 && inp_out_ids) { + cur = ggml_get_rows(ctx0, cur, inp_out_ids); + inpL = ggml_get_rows(ctx0, inpL, inp_out_ids); + } + + // re-add the layer input + cur = ggml_add(ctx0, cur, inpL); + + ggml_tensor * ffn_inp = cur; + // attention layer norm + cur = build_norm(cur, model.layers[il].ffn_norm, nullptr, LLM_NORM, il); + + cb(ffn_inp, "ffn_inp", il); + + cur = build_ffn(cur, + model.layers[il].ffn_up, + NULL, NULL, NULL, NULL, NULL, + model.layers[il].ffn_down, + NULL, NULL, NULL, + LLM_FFN_GEGLU, LLM_FFN_SEQ, il); + + // attentions bypass the intermediate layer + cur = ggml_add(ctx0, cur, ffn_inp); + + // input for next layer + inpL = cur; + } + + cur = inpL; + + cur = build_norm(cur, + model.output_norm, NULL, + LLM_NORM, -1); + cb(cur, "final_norm_out", -1); + + if (hparams.pooling_type == LLAMA_POOLING_TYPE_CLS) { + // extracting cls token + cur = ggml_view_1d(ctx0, cur, hparams.n_embd, 0); + cb(cur, "cls_pooled_embd", -1); + } + + cb(cur, "res_embd", -1); + res->t_embd = cur; + ggml_build_forward_expand(gf, cur); +} + +// Explicit template instantiations +template struct llm_build_modern_bert; +template struct llm_build_modern_bert; \ No newline at end of file