diff options
Diffstat (limited to 'llama.cpp/src/models/rwkv7-base.cpp')
| -rw-r--r-- | llama.cpp/src/models/rwkv7-base.cpp | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/llama.cpp/src/models/rwkv7-base.cpp b/llama.cpp/src/models/rwkv7-base.cpp new file mode 100644 index 0000000..cda4465 --- /dev/null +++ b/llama.cpp/src/models/rwkv7-base.cpp @@ -0,0 +1,135 @@ +#include "models.h" + +llm_build_rwkv7_base::llm_build_rwkv7_base(const llama_model & model, const llm_graph_params & params) : + llm_graph_context(params), + model(model) {} + +ggml_tensor * llm_build_rwkv7_base::build_rwkv7_channel_mix(const llama_layer * layer, + ggml_tensor * cur, + ggml_tensor * x_prev, + llm_arch arch) const { + ggml_tensor * sx = ggml_sub(ctx0, x_prev, cur); + switch (arch) { + case LLM_ARCH_RWKV7: + { + ggml_tensor * xk = ggml_add(ctx0, ggml_mul(ctx0, sx, layer->channel_mix_lerp_k), cur); + + ggml_tensor * k = ggml_sqr(ctx0, ggml_relu(ctx0, build_lora_mm(layer->channel_mix_key, xk))); + + cur = build_lora_mm(layer->channel_mix_value, k); + } + break; + default: + GGML_ABORT("fatal error"); + } + return cur; +} + +ggml_tensor * llm_build_rwkv7_base::build_rwkv7_time_mix(llm_graph_input_rs * inp, + ggml_tensor * cur, + ggml_tensor * x_prev, + ggml_tensor *& first_layer_value, + const llama_ubatch & ubatch, + int il) const { + const auto * mctx_cur = static_cast<const llama_memory_recurrent_context *>(mctx); + + const auto n_tokens = ubatch.n_tokens; + const auto n_seqs = ubatch.n_seqs; + const auto n_embd = hparams.n_embd; + const auto head_size = hparams.wkv_head_size; + const auto head_count = n_embd / head_size; + const auto n_seq_tokens = ubatch.n_seq_tokens; + + const auto kv_head = mctx_cur->get_head(); + + const auto & layer = model.layers[il]; + + bool has_gating = layer.time_mix_g1 && layer.time_mix_g2; + + ggml_tensor * sx = ggml_sub(ctx0, x_prev, cur); + ggml_tensor * dummy = ggml_new_tensor_4d(ctx0, GGML_TYPE_F32, n_embd, n_seq_tokens, n_seqs, has_gating ? 6 : 5); + sx = ggml_repeat(ctx0, sx, dummy); + + ggml_tensor * xxx = ggml_add(ctx0, ggml_mul(ctx0, sx, layer.time_mix_lerp_fused), cur); + + ggml_tensor * xr = ggml_view_2d(ctx0, xxx, n_embd, n_tokens, xxx->nb[1], 0); + ggml_tensor * xw = ggml_view_2d(ctx0, xxx, n_embd, n_tokens, xxx->nb[1], n_embd * n_tokens * sizeof(float)); + ggml_tensor * xk = ggml_view_2d(ctx0, xxx, n_embd, n_tokens, xxx->nb[1], n_embd * n_tokens * 2 * sizeof(float)); + ggml_tensor * xv = ggml_view_2d(ctx0, xxx, n_embd, n_tokens, xxx->nb[1], n_embd * n_tokens * 3 * sizeof(float)); + ggml_tensor * xa = ggml_view_2d(ctx0, xxx, n_embd, n_tokens, xxx->nb[1], n_embd * n_tokens * 4 * sizeof(float)); + ggml_tensor * xg = + has_gating ? ggml_view_2d(ctx0, xxx, n_embd, n_tokens, xxx->nb[1], n_embd * n_tokens * 5 * sizeof(float)) : + nullptr; + + ggml_tensor * r = build_lora_mm(layer.time_mix_receptance, xr); + ggml_tensor * w = ggml_add( + ctx0, ggml_mul_mat(ctx0, layer.time_mix_w2, ggml_tanh(ctx0, ggml_mul_mat(ctx0, layer.time_mix_w1, xw))), + layer.time_mix_w0); + w = ggml_exp(ctx0, ggml_scale(ctx0, ggml_sigmoid(ctx0, w), -0.606531)); + + ggml_tensor * k = build_lora_mm(layer.time_mix_key, xk); + ggml_tensor * v = build_lora_mm(layer.time_mix_value, xv); + if (first_layer_value == nullptr) { + first_layer_value = v; + } else { + // Add the first layer value as a residual connection. + v = ggml_add(ctx0, v, + ggml_mul(ctx0, ggml_sub(ctx0, first_layer_value, v), + ggml_sigmoid(ctx0, ggml_add(ctx0, + ggml_mul_mat(ctx0, layer.time_mix_v2, + ggml_mul_mat(ctx0, layer.time_mix_v1, xv)), + layer.time_mix_v0)))); + } + ggml_tensor * g = nullptr; + if (layer.time_mix_g1 && layer.time_mix_g2) { + g = ggml_mul_mat(ctx0, layer.time_mix_g2, ggml_sigmoid(ctx0, ggml_mul_mat(ctx0, layer.time_mix_g1, xg))); + } + ggml_tensor * a = ggml_sigmoid( + ctx0, ggml_add(ctx0, ggml_mul_mat(ctx0, layer.time_mix_a2, ggml_mul_mat(ctx0, layer.time_mix_a1, xa)), + layer.time_mix_a0)); + + ggml_tensor * kk = ggml_reshape_3d(ctx0, ggml_mul(ctx0, k, layer.time_mix_k_k), head_size, head_count, n_tokens); + kk = ggml_l2_norm(ctx0, kk, 1e-12); + + ggml_tensor * ka = ggml_mul(ctx0, k, layer.time_mix_k_a); + k = ggml_add(ctx0, k, ggml_sub(ctx0, ggml_mul(ctx0, a, ka), ka)); + + r = ggml_reshape_3d(ctx0, r, head_size, head_count, n_tokens); + w = ggml_reshape_3d(ctx0, w, head_size, head_count, n_tokens); + k = ggml_reshape_3d(ctx0, k, head_size, head_count, n_tokens); + v = ggml_reshape_3d(ctx0, v, head_size, head_count, n_tokens); + a = ggml_reshape_3d(ctx0, a, head_size, head_count, n_tokens); + + ggml_tensor * wkv_state = build_rs(inp, mctx_cur->get_s_l(il), hparams.n_embd_s(), n_seqs); + + ggml_tensor * wkv_output = ggml_rwkv_wkv7(ctx0, r, w, k, v, ggml_neg(ctx0, kk), ggml_mul(ctx0, kk, a), wkv_state); + cur = ggml_view_1d(ctx0, wkv_output, n_embd * n_tokens, 0); + wkv_state = ggml_view_1d(ctx0, wkv_output, n_embd * head_size * n_seqs, n_embd * n_tokens * sizeof(float)); + + ggml_build_forward_expand( + gf, ggml_cpy(ctx0, wkv_state, + ggml_view_1d(ctx0, mctx_cur->get_s_l(il), hparams.n_embd_s() * n_seqs, + hparams.n_embd_s() * kv_head * ggml_element_size(mctx_cur->get_s_l(il))))); + + if (layer.time_mix_ln && layer.time_mix_ln_b) { + // group norm with head_count groups + cur = ggml_reshape_3d(ctx0, cur, n_embd / head_count, head_count, n_tokens); + cur = ggml_norm(ctx0, cur, 64e-5f); + + // Convert back to regular vectors. + cur = ggml_reshape_2d(ctx0, cur, n_embd, n_tokens); + cur = ggml_add(ctx0, ggml_mul(ctx0, cur, layer.time_mix_ln), layer.time_mix_ln_b); + } else { + cur = ggml_reshape_2d(ctx0, cur, n_embd, n_tokens); + } + ggml_tensor * rk = ggml_sum_rows( + ctx0, ggml_mul(ctx0, ggml_mul(ctx0, k, r), ggml_reshape_2d(ctx0, layer.time_mix_r_k, head_size, head_count))); + cur = ggml_add(ctx0, cur, ggml_reshape_2d(ctx0, ggml_mul(ctx0, v, rk), n_embd, n_tokens)); + + if (has_gating) { + cur = ggml_mul(ctx0, cur, g); + } + cur = build_lora_mm(layer.time_mix_output, cur); + + return ggml_reshape_3d(ctx0, cur, n_embd, n_seq_tokens, n_seqs); +} |