From db58c044b0904cba1caff5006f530e1dbdeebfd2 Mon Sep 17 00:00:00 2001 From: Georgi Gerganov Date: Sat, 14 Feb 2026 14:20:42 +0200 Subject: [PATCH] cont : keep qwen35 and qwen35moe graphs intact --- src/models/models.h | 60 ++++++- src/models/qwen35.cpp | 377 +++++++++++++++++++++++++++++++++++++- src/models/qwen35moe.cpp | 378 ++++++++++++++++++++++++++++++++++++++- 3 files changed, 807 insertions(+), 8 deletions(-) diff --git a/src/models/models.h b/src/models/models.h index b98e43d8e8..8b7f8c3bb8 100644 --- a/src/models/models.h +++ b/src/models/models.h @@ -3,6 +3,9 @@ #include "llama-model.h" #include "llama-graph.h" +// note: almost all graphs require atleast sqrtf, so include cmath globally +#include + // // base classes // @@ -539,7 +542,7 @@ private: const llama_model & model; }; -struct llm_build_qwen35 : public llm_build_delta_net_base { +struct llm_build_qwen35 : public llm_graph_context { llm_build_qwen35(const llama_model & model, const llm_graph_params & params); private: ggml_tensor * build_layer_attn( @@ -552,12 +555,39 @@ private: ggml_tensor * build_layer_attn_linear( llm_graph_input_rs * inp, ggml_tensor * cur, + ggml_tensor * causal_mask, + ggml_tensor * identity, + ggml_tensor * diag_mask, int il); + ggml_tensor * build_layer_ffn( ggml_tensor * cur, int il); + // returns pair of output and new state + std::pair build_delta_net_chunking( + ggml_tensor * q, + ggml_tensor * k, + ggml_tensor * v, + ggml_tensor * g, + ggml_tensor * beta, + ggml_tensor * state, + ggml_tensor * causal_mask, + ggml_tensor * identity, + ggml_tensor * diag_mask, + int il); + + // returns pair of output and new state + std::pair build_delta_net_autoregressive( + ggml_tensor * q, + ggml_tensor * k, + ggml_tensor * v, + ggml_tensor * g, + ggml_tensor * beta, + ggml_tensor * state, + int il); + ggml_tensor * build_norm_gated( ggml_tensor * input, ggml_tensor * weights, @@ -572,7 +602,7 @@ private: const llama_model & model; }; -struct llm_build_qwen35moe : public llm_build_delta_net_base { +struct llm_build_qwen35moe : public llm_graph_context { llm_build_qwen35moe(const llama_model & model, const llm_graph_params & params); private: ggml_tensor * build_layer_attn( @@ -585,12 +615,38 @@ private: ggml_tensor * build_layer_attn_linear( llm_graph_input_rs * inp, ggml_tensor * cur, + ggml_tensor * causal_mask, + ggml_tensor * identity, + ggml_tensor * diag_mask, int il); ggml_tensor * build_layer_ffn( ggml_tensor * cur, int il); + // returns pair of output and new state + std::pair build_delta_net_chunking( + ggml_tensor * q, + ggml_tensor * k, + ggml_tensor * v, + ggml_tensor * g, + ggml_tensor * beta, + ggml_tensor * state, + ggml_tensor * causal_mask, + ggml_tensor * identity, + ggml_tensor * diag_mask, + int il); + + // returns pair of output and new state + std::pair build_delta_net_autoregressive( + ggml_tensor * q, + ggml_tensor * k, + ggml_tensor * v, + ggml_tensor * g, + ggml_tensor * beta, + ggml_tensor * state, + int il); + ggml_tensor * build_norm_gated( ggml_tensor * input, ggml_tensor * weights, diff --git a/src/models/qwen35.cpp b/src/models/qwen35.cpp index cb652a2cce..94c68dbb26 100644 --- a/src/models/qwen35.cpp +++ b/src/models/qwen35.cpp @@ -2,8 +2,10 @@ #include "llama-memory-recurrent.h" +#define CHUNK_SIZE 64 + llm_build_qwen35::llm_build_qwen35(const llama_model & model, const llm_graph_params & params) : - llm_build_delta_net_base(params), model(model) { + llm_graph_context(params), model(model) { const int64_t n_embd_head = hparams.n_embd_head_v; GGML_ASSERT(n_embd_head == hparams.n_embd_head_k); @@ -23,6 +25,17 @@ llm_build_qwen35::llm_build_qwen35(const llama_model & model, const llm_graph_pa ggml_tensor * inp_pos = build_inp_pos(); ggml_tensor * inp_out_ids = build_inp_out_ids(); + ggml_tensor * causal_mask = + ggml_tri(ctx0, ggml_fill(ctx0, ggml_new_tensor_2d(ctx0, GGML_TYPE_F32, CHUNK_SIZE, CHUNK_SIZE), 1.0f), + GGML_TRI_TYPE_LOWER); + + ggml_tensor * identity = ggml_diag(ctx0, ggml_fill(ctx0, ggml_new_tensor_1d(ctx0, GGML_TYPE_F32, CHUNK_SIZE), 1.0f)); + ggml_tensor * diag_mask = ggml_add(ctx0, causal_mask, identity); + + ggml_build_forward_expand(gf, causal_mask); + ggml_build_forward_expand(gf, identity); + ggml_build_forward_expand(gf, diag_mask); + for (int il = 0; il < n_layer; ++il) { ggml_tensor * inpSA = inpL; @@ -32,7 +45,7 @@ llm_build_qwen35::llm_build_qwen35(const llama_model & model, const llm_graph_pa // Determine layer type and build appropriate attention mechanism if (hparams.is_recurrent(il)) { // Linear attention layer (gated delta net) - cur = build_layer_attn_linear(inp->get_recr(), cur, il); + cur = build_layer_attn_linear(inp->get_recr(), cur, causal_mask, identity, diag_mask, il); } else { // Full attention layer cur = build_layer_attn(inp->get_attn(), cur, inp_pos, sections, il); @@ -82,6 +95,361 @@ llm_build_qwen35::llm_build_qwen35(const llama_model & model, const llm_graph_pa ggml_build_forward_expand(gf, cur); } +// utility to get one slice from the third dimension +// input dim: [x, y, c, b] +// output dim: [x, y, 1, b] +static ggml_tensor * get_slice_2d(ggml_context * ctx0, ggml_tensor * t, int64_t c) { + return ggml_view_4d(ctx0, t, t->ne[0], t->ne[1], 1, t->ne[3], + t->nb[1], t->nb[2], t->nb[3], t->nb[2] * c); +} + +std::pair llm_build_qwen35::build_delta_net_chunking( + ggml_tensor * q, + ggml_tensor * k, + ggml_tensor * v, + ggml_tensor * g, + ggml_tensor * beta, + ggml_tensor * state, + ggml_tensor * causal_mask, + ggml_tensor * identity, + ggml_tensor * diag_mask, + int il) { + const int64_t S_k = q->ne[0]; + const int64_t H_k = q->ne[1]; + const int64_t n_tokens = q->ne[2]; + const int64_t n_seqs = q->ne[3]; + + const int64_t S_v = v->ne[0]; + const int64_t H_v = v->ne[1]; + + GGML_ASSERT(v->ne[2] == n_tokens); + GGML_ASSERT(k->ne[2] == n_tokens); + GGML_ASSERT(g->ne[0] == H_v && g->ne[1] == n_tokens && g->ne[2] == n_seqs); + GGML_ASSERT(beta->ne[0] == H_v && beta->ne[2] == n_tokens && beta->ne[3] == n_seqs); + GGML_ASSERT(state->ne[0] == S_v && state->ne[1] == S_v * H_v && state->ne[2] == 1 && state->ne[3] == n_seqs); + + GGML_ASSERT(q->ne[0] == S_k && q->ne[1] == H_k && q->ne[2] == n_tokens && q->ne[3] == n_seqs); + GGML_ASSERT(k->ne[0] == S_k && k->ne[1] == H_k && k->ne[2] == n_tokens && k->ne[3] == n_seqs); + + GGML_ASSERT(H_k == H_v); // we did a repeat to make sure this is the case + + const float eps_norm = hparams.f_norm_rms_eps; + + q = ggml_l2_norm(ctx0, q, eps_norm); + k = ggml_l2_norm(ctx0, k, eps_norm); + + const float scale = 1.0f / sqrtf(S_v); + + q = ggml_scale(ctx0, q, scale); + + beta = ggml_sigmoid(ctx0, beta); + + cb(q, "q_in", il); + cb(k, "k_in", il); + cb(v, "v_in", il); + cb(beta, "beta_in", il); + cb(g, "g_in", il); + + q = ggml_cont_4d(ctx0, ggml_permute(ctx0, q, 0, 2, 1, 3), S_v, n_tokens, H_v, n_seqs); + k = ggml_cont_4d(ctx0, ggml_permute(ctx0, k, 0, 2, 1, 3), S_v, n_tokens, H_v, n_seqs); + v = ggml_cont_4d(ctx0, ggml_permute(ctx0, v, 0, 2, 1, 3), S_v, n_tokens, H_v, n_seqs); + g = ggml_cont_4d(ctx0, ggml_permute(ctx0, g, 2, 0, 3, 1), n_tokens, 1, H_k, n_seqs); + + beta = ggml_cont(ctx0, ggml_permute(ctx0, beta, 2, 0, 1, 3)); + state = ggml_reshape_4d(ctx0, state, S_v, S_v, H_v, n_seqs); + + cb(q, "q_perm", il); + cb(k, "k_perm", il); + cb(v, "v_perm", il); + cb(beta, "beta_perm", il); + cb(g, "g_perm", il); + cb(state, "state_in", il); + + GGML_ASSERT(q->ne[1] == n_tokens && q->ne[0] == S_k && q->ne[2] == H_k && q->ne[3] == n_seqs); + GGML_ASSERT(k->ne[1] == n_tokens && k->ne[0] == S_k && k->ne[2] == H_k && k->ne[3] == n_seqs); + GGML_ASSERT(v->ne[1] == n_tokens && v->ne[0] == S_v && v->ne[2] == H_k && v->ne[3] == n_seqs); + GGML_ASSERT(beta->ne[1] == n_tokens && beta->ne[2] == H_k && beta->ne[0] == 1 && beta->ne[3] == n_seqs); + + // Do padding + const int64_t chunk_size = CHUNK_SIZE; + + const int64_t pad = (chunk_size - n_tokens % chunk_size) % chunk_size; + const int64_t n_chunks = (n_tokens + pad) / chunk_size; + + q = ggml_pad(ctx0, q, 0, pad, 0, 0); + k = ggml_pad(ctx0, k, 0, pad, 0, 0); + v = ggml_pad(ctx0, v, 0, pad, 0, 0); + g = ggml_pad(ctx0, g, pad, 0, 0, 0); + beta = ggml_pad(ctx0, beta, 0, pad, 0, 0); + + cb(q, "q_pad", il); + cb(k, "k_pad", il); + cb(v, "v_pad", il); + cb(beta, "beta_pad", il); + cb(g, "g_pad", il); + + ggml_tensor * v_beta = ggml_mul(ctx0, v, beta); + ggml_tensor * k_beta = ggml_mul(ctx0, k, beta); + + cb(v_beta, "v_beta", il); + cb(k_beta, "k_beta", il); + + q = ggml_reshape_4d(ctx0, q, S_k, chunk_size, n_chunks, H_k * n_seqs); + k = ggml_reshape_4d(ctx0, k, S_k, chunk_size, n_chunks, H_k * n_seqs); + k_beta = ggml_reshape_4d(ctx0, k_beta, S_k, chunk_size, n_chunks, H_k * n_seqs); + v = ggml_reshape_4d(ctx0, v, S_v, chunk_size, n_chunks, H_v * n_seqs); + v_beta = ggml_reshape_4d(ctx0, v_beta, S_v, chunk_size, n_chunks, H_v * n_seqs); + + g = ggml_reshape_4d(ctx0, g, chunk_size, 1, n_chunks, H_k * n_seqs); + beta = ggml_reshape_4d(ctx0, beta, 1, chunk_size, n_chunks, H_k * n_seqs); + + ggml_tensor * g_cumsum = ggml_cumsum(ctx0, g); + cb(g_cumsum, "g_cumsum", il); // shape: (chunk_size, 1, n_chunks, H_v * n_seqs) + + ggml_tensor * gcs_i = g_cumsum; // ggml_reshape_4d(ctx0, g_cumsum, chunk_size, 1, n_chunks, H_v * n_seqs); + ggml_tensor * gcs_j = ggml_reshape_4d(ctx0, g_cumsum, 1, chunk_size, n_chunks, H_v * n_seqs); + + ggml_tensor * gcs_j_broadcast = + ggml_repeat_4d(ctx0, gcs_j, chunk_size, chunk_size, n_chunks, H_v * n_seqs); + + ggml_tensor * decay_mask = ggml_sub(ctx0, gcs_j_broadcast, gcs_i); + cb(decay_mask, "decay_mask", il); // shape: (chunk_size, chunk_size, n_chunks, H_v * n_seqs) + + decay_mask = ggml_mul(ctx0, decay_mask, diag_mask); + decay_mask = ggml_exp(ctx0, decay_mask); + decay_mask = ggml_mul(ctx0, decay_mask, diag_mask); + + ggml_tensor * kmulkbeta = ggml_mul_mat(ctx0, k, k_beta); + + ggml_tensor * k_decay = ggml_mul(ctx0, kmulkbeta, decay_mask); + ggml_tensor * attn = ggml_neg(ctx0, ggml_mul(ctx0, k_decay, causal_mask)); + cb(attn, "attn_pre_solve", il); // shape: (chunk_size, chunk_size, n_chunks, H_v * n_seqs) + + ggml_tensor * attn_lower = ggml_mul(ctx0, attn, causal_mask); + ggml_tensor * lhs = ggml_sub(ctx0, ggml_repeat(ctx0, identity, attn_lower), attn_lower); + + ggml_tensor * lin_solve = ggml_solve_tri(ctx0, lhs, attn, true, true, false); + attn = ggml_mul(ctx0, lin_solve, causal_mask); + attn = ggml_add(ctx0, attn, identity); + cb(attn, "attn_solved", il); // shape: (chunk_size, chunk_size, n_chunks, H_v * n_seqs) + + v = ggml_mul_mat(ctx0, ggml_cont(ctx0, ggml_transpose(ctx0, v_beta)), attn); + + ggml_tensor * g_cumsum_t = ggml_cont(ctx0, ggml_transpose(ctx0, g_cumsum)); + ggml_tensor * gexp = ggml_exp(ctx0, g_cumsum_t); + + ggml_tensor * kbeta_gexp = ggml_mul(ctx0, k_beta, gexp); + cb(kbeta_gexp, "kbeta_gexp", il); // shape: (S_k, chunk_size, n_chunks, H_v * n_seqs) + + ggml_tensor * k_cumdecay = + ggml_cont(ctx0, ggml_transpose(ctx0, ggml_mul_mat(ctx0, attn, ggml_cont(ctx0, ggml_transpose(ctx0, kbeta_gexp))))); + cb(k_cumdecay, "k_cumdecay", il); // shape: (chunk_size, chunk_size, n_chunks, H_v * n_seqs) + + ggml_tensor * attn_kq = ggml_mul_mat(ctx0, k, q); + attn_kq = ggml_mul(ctx0, attn_kq, decay_mask); + attn_kq = ggml_mul(ctx0, attn_kq, diag_mask); + cb(attn_kq, "attn_kq", il); // shape: (chunk_size, chunk_size, n_chunks, H_v * n_seqs) + + + // vectorized calculation of key_gdiff + // improved from the chunked version: + // g_last = torch.clamp(g_cum[:, :, -1], max=50.0).exp().unsqueeze(-1).unsqueeze(-1) + // g_diff = torch.clamp(g_cum[:, :, -1:] - g_cum, max=50.0).exp() + // key_gdiff = key * g_diff.unsqueeze(-1) + // kgdmulvnew = (key_gdiff).transpose(-1, -2) @ v_new + // last_recurrent_state = last_recurrent_state * g_last + kgdmulvnew + + // get last element in g_cumsum along chunk_size dimension (ne0) + // example: [[x, y, z, ..., last], ...] -> [[last], ...] + ggml_tensor * g_last = ggml_view_4d(ctx0, g_cumsum, 1, 1, g_cumsum->ne[2], g_cumsum->ne[3], + g_cumsum->nb[1], g_cumsum->nb[2], g_cumsum->nb[3], + (g_cumsum->ne[0] - 1) * ggml_element_size(g_cumsum)); + g_last = ggml_cont(ctx0, g_last); + cb(g_last, "g_last", il); // shape: (1, 1, n_chunks, H_v * n_seqs) + + ggml_tensor * g_last_exp = ggml_exp(ctx0, g_last); + cb(g_last_exp, "g_last_exp", il); // shape: (1, 1, n_chunks, H_v * n_seqs) + + ggml_tensor * g_diff = ggml_neg(ctx0, ggml_sub(ctx0, g_cumsum, g_last)); + cb(g_diff, "g_diff", il); // shape: (chunk_size, 1, n_chunks, H_v * n_seqs) + + ggml_tensor * g_diff_exp = ggml_exp(ctx0, g_diff); + ggml_tensor * g_diff_exp_t = ggml_reshape_4d(ctx0, g_diff_exp, + 1, chunk_size, n_chunks, g_diff_exp->ne[3]); + + ggml_tensor * key_gdiff = ggml_mul(ctx0, k, g_diff_exp_t); + cb(key_gdiff, "key_gdiff", il); // shape: (S_k, chunk_size, n_chunks, H_v * n_seqs) + + ggml_tensor * key_gdiff_t = ggml_cont(ctx0, ggml_transpose(ctx0, key_gdiff)); + cb(key_gdiff_t, "key_gdiff_t", il); // shape: (chunk_size, S_k, n_chunks, H_v * n_seqs) + + // state to be updated per chunk + ggml_tensor * new_state = state; // ggml_dup(ctx0, state); + cb(new_state, "new_state", il); // shape: (S_v, S_v, H_v, n_seqs) + + // shape after loop of chunks: (S_v, chunk_size, n_chunks, H_v * n_seqs) + ggml_tensor * core_attn_out = nullptr; + + for (int64_t chunk = 0; chunk < n_chunks; chunk++) { + // shape: (S_k, chunk_size, 1, H_k * n_seqs) + ggml_tensor * q_chunk = get_slice_2d(ctx0, q, chunk); // (no cont), next op: ggml_mul + + // shape: (S_v, chunk_size, 1, H_v * n_seqs) + ggml_tensor * v_chunk = get_slice_2d(ctx0, v, chunk); // (no cont), next op: ggml_repeat + + // shape: (chunk_size, 1, n_chunks, H_v * n_seqs) + ggml_tensor * gexp_chunk = get_slice_2d(ctx0, gexp, chunk); // (no cont), next op: ggml_mul + + // shape: (chunk_size, 1, H_v * n_seqs) + ggml_tensor * k_cumdecay_chunk = get_slice_2d(ctx0, k_cumdecay, chunk); // (no cont), next op: ggml_mul_mat + + // attn = (q_i @ k_i.transpose(-1, -2) * decay_mask[:, :, i]).masked_fill_(mask, 0) + // replaced by precomputed attn_kq + ggml_tensor * attn_chunk = get_slice_2d(ctx0, attn_kq, chunk); + cb(attn_chunk, "attn_chunk", il); + + ggml_tensor * state_t = ggml_cont_4d(ctx0, ggml_permute(ctx0, new_state, 1, 0, 2, 3), S_v, S_v, 1, H_v * n_seqs); + + // v_prime = (k_cumdecay[:, :, i]) @ last_recurrent_state + ggml_tensor * v_prime = ggml_mul_mat(ctx0, state_t, k_cumdecay_chunk); + cb(v_prime, "v_prime_chunk", il); // shape: (S_v, 1, H_v * n_seqs) + + // v_new = v_i - v_prime + ggml_tensor * v_new = ggml_sub(ctx0, ggml_repeat(ctx0, v_chunk, v_prime), v_prime); + ggml_tensor * v_new_t = ggml_cont(ctx0, ggml_transpose(ctx0, v_new)); + cb(v_new, "v_new_chunk", il); + + // attn_inter = (q_i * g[:, :, i, :, None].exp()) @ last_recurrent_state + ggml_tensor * q_g_exp = ggml_mul(ctx0, q_chunk, gexp_chunk); + ggml_tensor * attn_inter = ggml_mul_mat(ctx0, state_t, q_g_exp); + cb(attn_inter, "attn_inter_chunk", il); + + // core_attn_out[:, :, i] = attn_inter + attn @ v_new + ggml_tensor * v_attn = ggml_mul_mat(ctx0, v_new_t, attn_chunk); + cb(v_attn, "v_attn_chunk", il); + + ggml_tensor * core_attn_out_chunk = ggml_add(ctx0, attn_inter, v_attn); + cb(core_attn_out_chunk, "core_attn_out_chunk", il); // shape: (S_v, chunk_size, 1, H_v * n_seqs) + + core_attn_out = core_attn_out == nullptr + ? core_attn_out_chunk + : ggml_concat(ctx0, core_attn_out, core_attn_out_chunk, 2); + + // kgdmulvnew = (key_gdiff).transpose(-1, -2) @ v_new + ggml_tensor * k_gdiff_t = get_slice_2d(ctx0, key_gdiff_t, chunk); + //ggml_tensor * kgdmulvnew = ggml_mul_mat(ctx0, k_gdiff, v_new); // this is slower on metal, why? + ggml_tensor * kgdmulvnew = ggml_mul_mat(ctx0, v_new_t, k_gdiff_t); + + // last_recurrent_state = last_recurrent_state * g_last + kgdmulvnew + ggml_tensor * gexp_last_chunk = ggml_cont(ctx0, get_slice_2d(ctx0, g_last_exp, chunk)); + new_state = ggml_add(ctx0, + ggml_mul(ctx0, new_state, ggml_reshape_4d(ctx0, gexp_last_chunk, gexp_last_chunk->ne[0], gexp_last_chunk->ne[1], H_v, n_seqs)), + ggml_reshape_4d(ctx0, kgdmulvnew, kgdmulvnew->ne[0], kgdmulvnew->ne[1], H_v, n_seqs)); + } + + // truncate padded tokens + ggml_tensor * output_tokens = ggml_view_4d(ctx0, core_attn_out, + S_v, n_tokens, H_v, n_seqs, + ggml_row_size(core_attn_out->type, S_v), + ggml_row_size(core_attn_out->type, S_v * chunk_size * n_chunks), + ggml_row_size(core_attn_out->type, S_v * chunk_size * n_chunks * H_v), 0); + output_tokens = ggml_cont(ctx0, output_tokens); + cb(output_tokens, "output_tokens", il); + + // permute back to (S_v, H_v, n_tokens, n_seqs) + output_tokens = ggml_permute(ctx0, output_tokens, 0, 2, 1, 3); + output_tokens = ggml_cont(ctx0, output_tokens); + + return {output_tokens, new_state}; +} + +std::pair llm_build_qwen35::build_delta_net_autoregressive( + ggml_tensor * q, + ggml_tensor * k, + ggml_tensor * v, + ggml_tensor * g, + ggml_tensor * beta, + ggml_tensor * state, + int il) { + const int64_t S_k = q->ne[0]; + const int64_t H_k = q->ne[1]; + const int64_t n_tokens = q->ne[2]; + const int64_t n_seqs = q->ne[3]; + + const int64_t S_v = v->ne[0]; + const int64_t H_v = v->ne[1]; + + GGML_ASSERT(n_tokens == 1); // This function is optimized for single token processing + GGML_ASSERT(v->ne[2] == n_tokens); + GGML_ASSERT(k->ne[2] == n_tokens); + GGML_ASSERT(g->ne[0] == H_v && g->ne[1] == n_tokens && g->ne[2] == n_seqs); + GGML_ASSERT(beta->ne[0] == H_v && beta->ne[2] == n_tokens && beta->ne[3] == n_seqs); + GGML_ASSERT(state->ne[0] == S_v && state->ne[1] == S_v * H_v && state->ne[2] == 1 && state->ne[3] == n_seqs); + + GGML_ASSERT(q->ne[0] == S_k && q->ne[1] == H_k && q->ne[2] == n_tokens && q->ne[3] == n_seqs); + GGML_ASSERT(k->ne[0] == S_k && k->ne[1] == H_k && k->ne[2] == n_tokens && k->ne[3] == n_seqs); + + GGML_ASSERT(H_k == H_v); // we did a repeat to make sure this is the case + + const float eps_norm = hparams.f_norm_rms_eps; + + q = ggml_l2_norm(ctx0, q, eps_norm); + k = ggml_l2_norm(ctx0, k, eps_norm); + + const float scale = 1.0f / sqrtf(S_v); + + q = ggml_scale(ctx0, q, scale); + beta = ggml_sigmoid(ctx0, beta); + + cb(q, "q_in", il); + cb(k, "k_in", il); + cb(v, "v_in", il); + cb(beta, "beta_in", il); + cb(g, "g_in", il); + + state = ggml_reshape_4d(ctx0, state, S_v, S_v, H_v, n_seqs); + + ggml_tensor * g_t = ggml_reshape_4d(ctx0, ggml_transpose(ctx0, g), 1, 1, H_k, n_seqs); + ggml_tensor * beta_t = ggml_reshape_4d(ctx0, ggml_transpose(ctx0, beta), 1, 1, H_k, n_seqs); + + // Apply exponential to g_t + g_t = ggml_exp(ctx0, g_t); + + // Apply the gated delta rule for the single timestep + // last_recurrent_state = last_recurrent_state * g_t + state = ggml_mul(ctx0, state, g_t); + + // kv_mem = (last_recurrent_state * k_t.unsqueeze(-1)).sum(dim=-2) + ggml_tensor * k_t_unsqueezed = ggml_reshape_4d(ctx0, k, 1, S_v, H_v, n_seqs); + ggml_tensor * kv_mem = ggml_mul(ctx0, state, k_t_unsqueezed); + // we need to sum over dim=-2, so we transpose, sum, then transpose again + kv_mem = ggml_transpose(ctx0, ggml_sum_rows(ctx0, ggml_cont(ctx0, ggml_transpose(ctx0, kv_mem)))); + + // v_t = v.unsqueeze(2) (we insert the singleton dimension after n_seqs and H_v) + ggml_tensor * v_t = ggml_reshape_4d(ctx0, v, S_v, 1, H_v, n_seqs); + // delta = (v_t - kv_mem) * beta_t + ggml_tensor * v_diff = ggml_sub(ctx0, v_t, kv_mem); // both should be [S_v, 1, H_v, n_seqs] + ggml_tensor * delta = ggml_mul(ctx0, v_diff, beta_t); + + // last_recurrent_state = last_recurrent_state + k_t.unsqueeze(-1) * delta + ggml_tensor * k_t_delta = ggml_mul(ctx0, ggml_repeat_4d(ctx0, k_t_unsqueezed, S_v, S_v, H_v, n_seqs), delta); + state = ggml_add(ctx0, state, k_t_delta); + + // Compute the attention output + // core_attn_out = (last_recurrent_state * q_t.unsqueeze(-1)).sum(dim=-2) + ggml_tensor * q_t_unsqueezed = ggml_reshape_4d(ctx0, q, 1, S_v, H_v, n_seqs); // unsqueeze q_t + ggml_tensor * state_q = ggml_mul(ctx0, state, q_t_unsqueezed); + // again, since it's over dim = -2, transpose, sum, transpose back + ggml_tensor * core_attn_out = + ggml_transpose(ctx0, ggml_sum_rows(ctx0, ggml_cont(ctx0, ggml_transpose(ctx0, state_q)))); + + // core_attn_out should be [S_v, 1, H_v, n_seqs] after this + cb(core_attn_out, "output_tokens", il); + cb(state, "new_state", il); + + return {core_attn_out, state}; +} + std::pair llm_build_qwen35::build_qkvz( ggml_tensor * input, int il) { @@ -193,6 +561,9 @@ ggml_tensor * llm_build_qwen35::build_layer_attn( ggml_tensor * llm_build_qwen35::build_layer_attn_linear( llm_graph_input_rs * inp, ggml_tensor * cur, + ggml_tensor * causal_mask, + ggml_tensor * identity, + ggml_tensor * diag_mask, int il) { const auto * mctx_cur = inp->mctx; @@ -318,7 +689,7 @@ ggml_tensor * llm_build_qwen35::build_layer_attn_linear( if (n_seq_tokens == 1) { attn_out = build_delta_net_autoregressive(q_conv, k_conv, v_conv, gate, beta, state, il); } else { - attn_out = build_delta_net_chunking(q_conv, k_conv, v_conv, gate, beta, state, il); + attn_out = build_delta_net_chunking(q_conv, k_conv, v_conv, gate, beta, state, causal_mask, identity, diag_mask, il); } ggml_tensor * output = attn_out.first; ggml_tensor * new_state = attn_out.second; diff --git a/src/models/qwen35moe.cpp b/src/models/qwen35moe.cpp index 7e601d018e..93da7ea628 100644 --- a/src/models/qwen35moe.cpp +++ b/src/models/qwen35moe.cpp @@ -2,8 +2,10 @@ #include "llama-memory-recurrent.h" +#define CHUNK_SIZE 64 + llm_build_qwen35moe::llm_build_qwen35moe(const llama_model & model, const llm_graph_params & params) : - llm_build_delta_net_base(params), model(model) { + llm_graph_context(params), model(model) { const int64_t n_embd_head = hparams.n_embd_head_v; GGML_ASSERT(n_embd_head == hparams.n_embd_head_k); @@ -23,6 +25,17 @@ llm_build_qwen35moe::llm_build_qwen35moe(const llama_model & model, const llm_gr ggml_tensor * inp_pos = build_inp_pos(); ggml_tensor * inp_out_ids = build_inp_out_ids(); + ggml_tensor * causal_mask = + ggml_tri(ctx0, ggml_fill(ctx0, ggml_new_tensor_2d(ctx0, GGML_TYPE_F32, CHUNK_SIZE, CHUNK_SIZE), 1.0f), + GGML_TRI_TYPE_LOWER); + + ggml_tensor * identity = ggml_diag(ctx0, ggml_fill(ctx0, ggml_new_tensor_1d(ctx0, GGML_TYPE_F32, CHUNK_SIZE), 1.0f)); + ggml_tensor * diag_mask = ggml_add(ctx0, causal_mask, identity); + + ggml_build_forward_expand(gf, causal_mask); + ggml_build_forward_expand(gf, identity); + ggml_build_forward_expand(gf, diag_mask); + for (int il = 0; il < n_layer; ++il) { ggml_tensor * inpSA = inpL; @@ -32,7 +45,7 @@ llm_build_qwen35moe::llm_build_qwen35moe(const llama_model & model, const llm_gr // Determine layer type and build appropriate attention mechanism if (hparams.is_recurrent(il)) { // Linear attention layer (gated delta net) - cur = build_layer_attn_linear(inp->get_recr(), cur, il); + cur = build_layer_attn_linear(inp->get_recr(), cur, causal_mask, identity, diag_mask, il); } else { // Full attention layer cur = build_layer_attn(inp->get_attn(), cur, inp_pos, sections, il); @@ -82,6 +95,362 @@ llm_build_qwen35moe::llm_build_qwen35moe(const llama_model & model, const llm_gr ggml_build_forward_expand(gf, cur); } +// utility to get one slice from the third dimension +// input dim: [x, y, c, b] +// output dim: [x, y, 1, b] +static ggml_tensor * get_slice_2d(ggml_context * ctx0, ggml_tensor * t, int64_t c) { + return ggml_view_4d(ctx0, t, t->ne[0], t->ne[1], 1, t->ne[3], + t->nb[1], t->nb[2], t->nb[3], t->nb[2] * c); +} + +std::pair llm_build_qwen35moe::build_delta_net_chunking( + ggml_tensor * q, + ggml_tensor * k, + ggml_tensor * v, + ggml_tensor * g, + ggml_tensor * beta, + ggml_tensor * state, + ggml_tensor * causal_mask, + ggml_tensor * identity, + ggml_tensor * diag_mask, + int il) { + const int64_t S_k = q->ne[0]; + const int64_t H_k = q->ne[1]; + const int64_t n_tokens = q->ne[2]; + const int64_t n_seqs = q->ne[3]; + + const int64_t S_v = v->ne[0]; + const int64_t H_v = v->ne[1]; + + GGML_ASSERT(v->ne[2] == n_tokens); + GGML_ASSERT(k->ne[2] == n_tokens); + GGML_ASSERT(g->ne[0] == H_v && g->ne[1] == n_tokens && g->ne[2] == n_seqs); + GGML_ASSERT(beta->ne[0] == H_v && beta->ne[2] == n_tokens && beta->ne[3] == n_seqs); + GGML_ASSERT(state->ne[0] == S_v && state->ne[1] == S_v * H_v && state->ne[2] == 1 && state->ne[3] == n_seqs); + + GGML_ASSERT(q->ne[0] == S_k && q->ne[1] == H_k && q->ne[2] == n_tokens && q->ne[3] == n_seqs); + GGML_ASSERT(k->ne[0] == S_k && k->ne[1] == H_k && k->ne[2] == n_tokens && k->ne[3] == n_seqs); + + GGML_ASSERT(H_k == H_v); // we did a repeat to make sure this is the case + + const float eps_norm = hparams.f_norm_rms_eps; + + q = ggml_l2_norm(ctx0, q, eps_norm); + k = ggml_l2_norm(ctx0, k, eps_norm); + + const float scale = 1.0f / sqrtf(S_v); + + q = ggml_scale(ctx0, q, scale); + + beta = ggml_sigmoid(ctx0, beta); + + cb(q, "q_in", il); + cb(k, "k_in", il); + cb(v, "v_in", il); + cb(beta, "beta_in", il); + cb(g, "g_in", il); + + q = ggml_cont_4d(ctx0, ggml_permute(ctx0, q, 0, 2, 1, 3), S_v, n_tokens, H_v, n_seqs); + k = ggml_cont_4d(ctx0, ggml_permute(ctx0, k, 0, 2, 1, 3), S_v, n_tokens, H_v, n_seqs); + v = ggml_cont_4d(ctx0, ggml_permute(ctx0, v, 0, 2, 1, 3), S_v, n_tokens, H_v, n_seqs); + g = ggml_cont_4d(ctx0, ggml_permute(ctx0, g, 2, 0, 3, 1), n_tokens, 1, H_k, n_seqs); + + beta = ggml_cont(ctx0, ggml_permute(ctx0, beta, 2, 0, 1, 3)); + state = ggml_reshape_4d(ctx0, state, S_v, S_v, H_v, n_seqs); + + cb(q, "q_perm", il); + cb(k, "k_perm", il); + cb(v, "v_perm", il); + cb(beta, "beta_perm", il); + cb(g, "g_perm", il); + cb(state, "state_in", il); + + GGML_ASSERT(q->ne[1] == n_tokens && q->ne[0] == S_k && q->ne[2] == H_k && q->ne[3] == n_seqs); + GGML_ASSERT(k->ne[1] == n_tokens && k->ne[0] == S_k && k->ne[2] == H_k && k->ne[3] == n_seqs); + GGML_ASSERT(v->ne[1] == n_tokens && v->ne[0] == S_v && v->ne[2] == H_k && v->ne[3] == n_seqs); + GGML_ASSERT(beta->ne[1] == n_tokens && beta->ne[2] == H_k && beta->ne[0] == 1 && beta->ne[3] == n_seqs); + + // Do padding + const int64_t chunk_size = CHUNK_SIZE; + + const int64_t pad = (chunk_size - n_tokens % chunk_size) % chunk_size; + const int64_t n_chunks = (n_tokens + pad) / chunk_size; + + q = ggml_pad(ctx0, q, 0, pad, 0, 0); + k = ggml_pad(ctx0, k, 0, pad, 0, 0); + v = ggml_pad(ctx0, v, 0, pad, 0, 0); + g = ggml_pad(ctx0, g, pad, 0, 0, 0); + beta = ggml_pad(ctx0, beta, 0, pad, 0, 0); + + cb(q, "q_pad", il); + cb(k, "k_pad", il); + cb(v, "v_pad", il); + cb(beta, "beta_pad", il); + cb(g, "g_pad", il); + + ggml_tensor * v_beta = ggml_mul(ctx0, v, beta); + ggml_tensor * k_beta = ggml_mul(ctx0, k, beta); + + cb(v_beta, "v_beta", il); + cb(k_beta, "k_beta", il); + + q = ggml_reshape_4d(ctx0, q, S_k, chunk_size, n_chunks, H_k * n_seqs); + k = ggml_reshape_4d(ctx0, k, S_k, chunk_size, n_chunks, H_k * n_seqs); + k_beta = ggml_reshape_4d(ctx0, k_beta, S_k, chunk_size, n_chunks, H_k * n_seqs); + v = ggml_reshape_4d(ctx0, v, S_v, chunk_size, n_chunks, H_v * n_seqs); + v_beta = ggml_reshape_4d(ctx0, v_beta, S_v, chunk_size, n_chunks, H_v * n_seqs); + + g = ggml_reshape_4d(ctx0, g, chunk_size, 1, n_chunks, H_k * n_seqs); + beta = ggml_reshape_4d(ctx0, beta, 1, chunk_size, n_chunks, H_k * n_seqs); + + ggml_tensor * g_cumsum = ggml_cumsum(ctx0, g); + cb(g_cumsum, "g_cumsum", il); // shape: (chunk_size, 1, n_chunks, H_v * n_seqs) + + ggml_tensor * gcs_i = g_cumsum; // ggml_reshape_4d(ctx0, g_cumsum, chunk_size, 1, n_chunks, H_v * n_seqs); + ggml_tensor * gcs_j = ggml_reshape_4d(ctx0, g_cumsum, 1, chunk_size, n_chunks, H_v * n_seqs); + + ggml_tensor * gcs_j_broadcast = + ggml_repeat_4d(ctx0, gcs_j, chunk_size, chunk_size, n_chunks, H_v * n_seqs); + + ggml_tensor * decay_mask = ggml_sub(ctx0, gcs_j_broadcast, gcs_i); + cb(decay_mask, "decay_mask", il); // shape: (chunk_size, chunk_size, n_chunks, H_v * n_seqs) + + decay_mask = ggml_mul(ctx0, decay_mask, diag_mask); + decay_mask = ggml_exp(ctx0, decay_mask); + decay_mask = ggml_mul(ctx0, decay_mask, diag_mask); + + ggml_tensor * kmulkbeta = ggml_mul_mat(ctx0, k, k_beta); + + ggml_tensor * k_decay = ggml_mul(ctx0, kmulkbeta, decay_mask); + ggml_tensor * attn = ggml_neg(ctx0, ggml_mul(ctx0, k_decay, causal_mask)); + cb(attn, "attn_pre_solve", il); // shape: (chunk_size, chunk_size, n_chunks, H_v * n_seqs) + + ggml_tensor * attn_lower = ggml_mul(ctx0, attn, causal_mask); + ggml_tensor * lhs = ggml_sub(ctx0, ggml_repeat(ctx0, identity, attn_lower), attn_lower); + + ggml_tensor * lin_solve = ggml_solve_tri(ctx0, lhs, attn, true, true, false); + attn = ggml_mul(ctx0, lin_solve, causal_mask); + attn = ggml_add(ctx0, attn, identity); + cb(attn, "attn_solved", il); // shape: (chunk_size, chunk_size, n_chunks, H_v * n_seqs) + + v = ggml_mul_mat(ctx0, ggml_cont(ctx0, ggml_transpose(ctx0, v_beta)), attn); + + ggml_tensor * g_cumsum_t = ggml_cont(ctx0, ggml_transpose(ctx0, g_cumsum)); + ggml_tensor * gexp = ggml_exp(ctx0, g_cumsum_t); + + ggml_tensor * kbeta_gexp = ggml_mul(ctx0, k_beta, gexp); + cb(kbeta_gexp, "kbeta_gexp", il); // shape: (S_k, chunk_size, n_chunks, H_v * n_seqs) + + ggml_tensor * k_cumdecay = + ggml_cont(ctx0, ggml_transpose(ctx0, ggml_mul_mat(ctx0, attn, ggml_cont(ctx0, ggml_transpose(ctx0, kbeta_gexp))))); + cb(k_cumdecay, "k_cumdecay", il); // shape: (chunk_size, chunk_size, n_chunks, H_v * n_seqs) + + ggml_tensor * attn_kq = ggml_mul_mat(ctx0, k, q); + attn_kq = ggml_mul(ctx0, attn_kq, decay_mask); + attn_kq = ggml_mul(ctx0, attn_kq, diag_mask); + cb(attn_kq, "attn_kq", il); // shape: (chunk_size, chunk_size, n_chunks, H_v * n_seqs) + + + // vectorized calculation of key_gdiff + // improved from the chunked version: + // g_last = torch.clamp(g_cum[:, :, -1], max=50.0).exp().unsqueeze(-1).unsqueeze(-1) + // g_diff = torch.clamp(g_cum[:, :, -1:] - g_cum, max=50.0).exp() + // key_gdiff = key * g_diff.unsqueeze(-1) + // kgdmulvnew = (key_gdiff).transpose(-1, -2) @ v_new + // last_recurrent_state = last_recurrent_state * g_last + kgdmulvnew + + // get last element in g_cumsum along chunk_size dimension (ne0) + // example: [[x, y, z, ..., last], ...] -> [[last], ...] + ggml_tensor * g_last = ggml_view_4d(ctx0, g_cumsum, 1, 1, g_cumsum->ne[2], g_cumsum->ne[3], + g_cumsum->nb[1], g_cumsum->nb[2], g_cumsum->nb[3], + (g_cumsum->ne[0] - 1) * ggml_element_size(g_cumsum)); + g_last = ggml_cont(ctx0, g_last); + cb(g_last, "g_last", il); // shape: (1, 1, n_chunks, H_v * n_seqs) + + ggml_tensor * g_last_exp = ggml_exp(ctx0, g_last); + cb(g_last_exp, "g_last_exp", il); // shape: (1, 1, n_chunks, H_v * n_seqs) + + ggml_tensor * g_diff = ggml_neg(ctx0, ggml_sub(ctx0, g_cumsum, g_last)); + cb(g_diff, "g_diff", il); // shape: (chunk_size, 1, n_chunks, H_v * n_seqs) + + ggml_tensor * g_diff_exp = ggml_exp(ctx0, g_diff); + ggml_tensor * g_diff_exp_t = ggml_reshape_4d(ctx0, g_diff_exp, + 1, chunk_size, n_chunks, g_diff_exp->ne[3]); + + ggml_tensor * key_gdiff = ggml_mul(ctx0, k, g_diff_exp_t); + cb(key_gdiff, "key_gdiff", il); // shape: (S_k, chunk_size, n_chunks, H_v * n_seqs) + + ggml_tensor * key_gdiff_t = ggml_cont(ctx0, ggml_transpose(ctx0, key_gdiff)); + cb(key_gdiff_t, "key_gdiff_t", il); // shape: (chunk_size, S_k, n_chunks, H_v * n_seqs) + + + // state to be updated per chunk + ggml_tensor * new_state = state; // ggml_dup(ctx0, state); + cb(new_state, "new_state", il); // shape: (S_v, S_v, H_v, n_seqs) + + // shape after loop of chunks: (S_v, chunk_size, n_chunks, H_v * n_seqs) + ggml_tensor * core_attn_out = nullptr; + + for (int64_t chunk = 0; chunk < n_chunks; chunk++) { + // shape: (S_k, chunk_size, 1, H_k * n_seqs) + ggml_tensor * q_chunk = get_slice_2d(ctx0, q, chunk); // (no cont), next op: ggml_mul + + // shape: (S_v, chunk_size, 1, H_v * n_seqs) + ggml_tensor * v_chunk = get_slice_2d(ctx0, v, chunk); // (no cont), next op: ggml_repeat + + // shape: (chunk_size, 1, n_chunks, H_v * n_seqs) + ggml_tensor * gexp_chunk = get_slice_2d(ctx0, gexp, chunk); // (no cont), next op: ggml_mul + + // shape: (chunk_size, 1, H_v * n_seqs) + ggml_tensor * k_cumdecay_chunk = get_slice_2d(ctx0, k_cumdecay, chunk); // (no cont), next op: ggml_mul_mat + + // attn = (q_i @ k_i.transpose(-1, -2) * decay_mask[:, :, i]).masked_fill_(mask, 0) + // replaced by precomputed attn_kq + ggml_tensor * attn_chunk = get_slice_2d(ctx0, attn_kq, chunk); + cb(attn_chunk, "attn_chunk", il); + + ggml_tensor * state_t = ggml_cont_4d(ctx0, ggml_permute(ctx0, new_state, 1, 0, 2, 3), S_v, S_v, 1, H_v * n_seqs); + + // v_prime = (k_cumdecay[:, :, i]) @ last_recurrent_state + ggml_tensor * v_prime = ggml_mul_mat(ctx0, state_t, k_cumdecay_chunk); + cb(v_prime, "v_prime_chunk", il); // shape: (S_v, 1, H_v * n_seqs) + + // v_new = v_i - v_prime + ggml_tensor * v_new = ggml_sub(ctx0, ggml_repeat(ctx0, v_chunk, v_prime), v_prime); + ggml_tensor * v_new_t = ggml_cont(ctx0, ggml_transpose(ctx0, v_new)); + cb(v_new, "v_new_chunk", il); + + // attn_inter = (q_i * g[:, :, i, :, None].exp()) @ last_recurrent_state + ggml_tensor * q_g_exp = ggml_mul(ctx0, q_chunk, gexp_chunk); + ggml_tensor * attn_inter = ggml_mul_mat(ctx0, state_t, q_g_exp); + cb(attn_inter, "attn_inter_chunk", il); + + // core_attn_out[:, :, i] = attn_inter + attn @ v_new + ggml_tensor * v_attn = ggml_mul_mat(ctx0, v_new_t, attn_chunk); + cb(v_attn, "v_attn_chunk", il); + + ggml_tensor * core_attn_out_chunk = ggml_add(ctx0, attn_inter, v_attn); + cb(core_attn_out_chunk, "core_attn_out_chunk", il); // shape: (S_v, chunk_size, 1, H_v * n_seqs) + + core_attn_out = core_attn_out == nullptr + ? core_attn_out_chunk + : ggml_concat(ctx0, core_attn_out, core_attn_out_chunk, 2); + + // kgdmulvnew = (key_gdiff).transpose(-1, -2) @ v_new + ggml_tensor * k_gdiff_t = get_slice_2d(ctx0, key_gdiff_t, chunk); + //ggml_tensor * kgdmulvnew = ggml_mul_mat(ctx0, k_gdiff, v_new); // this is slower on metal, why? + ggml_tensor * kgdmulvnew = ggml_mul_mat(ctx0, v_new_t, k_gdiff_t); + + // last_recurrent_state = last_recurrent_state * g_last + kgdmulvnew + ggml_tensor * gexp_last_chunk = ggml_cont(ctx0, get_slice_2d(ctx0, g_last_exp, chunk)); + new_state = ggml_add(ctx0, + ggml_mul(ctx0, new_state, ggml_reshape_4d(ctx0, gexp_last_chunk, gexp_last_chunk->ne[0], gexp_last_chunk->ne[1], H_v, n_seqs)), + ggml_reshape_4d(ctx0, kgdmulvnew, kgdmulvnew->ne[0], kgdmulvnew->ne[1], H_v, n_seqs)); + } + + // truncate padded tokens + ggml_tensor * output_tokens = ggml_view_4d(ctx0, core_attn_out, + S_v, n_tokens, H_v, n_seqs, + ggml_row_size(core_attn_out->type, S_v), + ggml_row_size(core_attn_out->type, S_v * chunk_size * n_chunks), + ggml_row_size(core_attn_out->type, S_v * chunk_size * n_chunks * H_v), 0); + output_tokens = ggml_cont(ctx0, output_tokens); + cb(output_tokens, "output_tokens", il); + + // permute back to (S_v, H_v, n_tokens, n_seqs) + output_tokens = ggml_permute(ctx0, output_tokens, 0, 2, 1, 3); + output_tokens = ggml_cont(ctx0, output_tokens); + + return {output_tokens, new_state}; +} + +std::pair llm_build_qwen35moe::build_delta_net_autoregressive( + ggml_tensor * q, + ggml_tensor * k, + ggml_tensor * v, + ggml_tensor * g, + ggml_tensor * beta, + ggml_tensor * state, + int il) { + const int64_t S_k = q->ne[0]; + const int64_t H_k = q->ne[1]; + const int64_t n_tokens = q->ne[2]; + const int64_t n_seqs = q->ne[3]; + + const int64_t S_v = v->ne[0]; + const int64_t H_v = v->ne[1]; + + GGML_ASSERT(n_tokens == 1); // This function is optimized for single token processing + GGML_ASSERT(v->ne[2] == n_tokens); + GGML_ASSERT(k->ne[2] == n_tokens); + GGML_ASSERT(g->ne[0] == H_v && g->ne[1] == n_tokens && g->ne[2] == n_seqs); + GGML_ASSERT(beta->ne[0] == H_v && beta->ne[2] == n_tokens && beta->ne[3] == n_seqs); + GGML_ASSERT(state->ne[0] == S_v && state->ne[1] == S_v * H_v && state->ne[2] == 1 && state->ne[3] == n_seqs); + + GGML_ASSERT(q->ne[0] == S_k && q->ne[1] == H_k && q->ne[2] == n_tokens && q->ne[3] == n_seqs); + GGML_ASSERT(k->ne[0] == S_k && k->ne[1] == H_k && k->ne[2] == n_tokens && k->ne[3] == n_seqs); + + GGML_ASSERT(H_k == H_v); // we did a repeat to make sure this is the case + + const float eps_norm = hparams.f_norm_rms_eps; + + q = ggml_l2_norm(ctx0, q, eps_norm); + k = ggml_l2_norm(ctx0, k, eps_norm); + + const float scale = 1.0f / sqrtf(S_v); + + q = ggml_scale(ctx0, q, scale); + beta = ggml_sigmoid(ctx0, beta); + + cb(q, "q_in", il); + cb(k, "k_in", il); + cb(v, "v_in", il); + cb(beta, "beta_in", il); + cb(g, "g_in", il); + + state = ggml_reshape_4d(ctx0, state, S_v, S_v, H_v, n_seqs); + + ggml_tensor * g_t = ggml_reshape_4d(ctx0, ggml_transpose(ctx0, g), 1, 1, H_k, n_seqs); + ggml_tensor * beta_t = ggml_reshape_4d(ctx0, ggml_transpose(ctx0, beta), 1, 1, H_k, n_seqs); + + // Apply exponential to g_t + g_t = ggml_exp(ctx0, g_t); + + // Apply the gated delta rule for the single timestep + // last_recurrent_state = last_recurrent_state * g_t + state = ggml_mul(ctx0, state, g_t); + + // kv_mem = (last_recurrent_state * k_t.unsqueeze(-1)).sum(dim=-2) + ggml_tensor * k_t_unsqueezed = ggml_reshape_4d(ctx0, k, 1, S_v, H_v, n_seqs); + ggml_tensor * kv_mem = ggml_mul(ctx0, state, k_t_unsqueezed); + // we need to sum over dim=-2, so we transpose, sum, then transpose again + kv_mem = ggml_transpose(ctx0, ggml_sum_rows(ctx0, ggml_cont(ctx0, ggml_transpose(ctx0, kv_mem)))); + + // v_t = v.unsqueeze(2) (we insert the singleton dimension after n_seqs and H_v) + ggml_tensor * v_t = ggml_reshape_4d(ctx0, v, S_v, 1, H_v, n_seqs); + // delta = (v_t - kv_mem) * beta_t + ggml_tensor * v_diff = ggml_sub(ctx0, v_t, kv_mem); // both should be [S_v, 1, H_v, n_seqs] + ggml_tensor * delta = ggml_mul(ctx0, v_diff, beta_t); + + // last_recurrent_state = last_recurrent_state + k_t.unsqueeze(-1) * delta + ggml_tensor * k_t_delta = ggml_mul(ctx0, ggml_repeat_4d(ctx0, k_t_unsqueezed, S_v, S_v, H_v, n_seqs), delta); + state = ggml_add(ctx0, state, k_t_delta); + + // Compute the attention output + // core_attn_out = (last_recurrent_state * q_t.unsqueeze(-1)).sum(dim=-2) + ggml_tensor * q_t_unsqueezed = ggml_reshape_4d(ctx0, q, 1, S_v, H_v, n_seqs); // unsqueeze q_t + ggml_tensor * state_q = ggml_mul(ctx0, state, q_t_unsqueezed); + // again, since it's over dim = -2, transpose, sum, transpose back + ggml_tensor * core_attn_out = + ggml_transpose(ctx0, ggml_sum_rows(ctx0, ggml_cont(ctx0, ggml_transpose(ctx0, state_q)))); + + // core_attn_out should be [S_v, 1, H_v, n_seqs] after this + cb(core_attn_out, "output_tokens", il); + cb(state, "new_state", il); + + return {core_attn_out, state}; +} + std::pair llm_build_qwen35moe::build_qkvz( ggml_tensor * input, int il) { @@ -193,6 +562,9 @@ ggml_tensor * llm_build_qwen35moe ::build_layer_attn( ggml_tensor * llm_build_qwen35moe ::build_layer_attn_linear( llm_graph_input_rs * inp, ggml_tensor * cur, + ggml_tensor * causal_mask, + ggml_tensor * identity, + ggml_tensor * diag_mask, int il) { const auto * mctx_cur = inp->mctx; @@ -318,7 +690,7 @@ ggml_tensor * llm_build_qwen35moe ::build_layer_attn_linear( if (n_seq_tokens == 1) { attn_out = build_delta_net_autoregressive(q_conv, k_conv, v_conv, gate, beta, state, il); } else { - attn_out = build_delta_net_chunking(q_conv, k_conv, v_conv, gate, beta, state, il); + attn_out = build_delta_net_chunking(q_conv, k_conv, v_conv, gate, beta, state, causal_mask, identity, diag_mask, il); } ggml_tensor * output = attn_out.first; ggml_tensor * new_state = attn_out.second;