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Felipe97/llama-cpp-compiled

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1#include "models.h"2 3#include "llama-kv-cache.h"4#include "llama-kv-cache-dsa.h"5 6#include <cmath>7 8// iHC (independent Hyper-Connections) helpers. Same layout as the DeepSeek-V4 HC, but without9// the comb/sinkhorn term: hc_fn makes only 2*hc coefficients (pre + post). The streams mix10// through the pre-reduce / post-distribute round trip instead.11 12static size_t hy_v4_elem_offset(const ggml_tensor * t, int64_t i) {13    return ggml_row_size(t->type, i);14}15 16static ggml_tensor * hy_v4_view_1d(ggml_context * ctx, ggml_tensor * t, int64_t ne0, int64_t i0) {17    return ggml_view_1d(ctx, t, ne0, hy_v4_elem_offset(t, i0));18}19 20static ggml_tensor * hy_v4_view_2d(ggml_context * ctx, ggml_tensor * t, int64_t ne0, int64_t ne1, int64_t i0) {21    return ggml_view_2d(ctx, t, ne0, ne1, t->nb[1], hy_v4_elem_offset(t, i0));22}23 24void llama_model_hy_v4::load_arch_hparams(llama_model_loader & ml) {25    ml.get_key(LLM_KV_ATTENTION_LAYERNORM_RMS_EPS, hparams.f_norm_rms_eps);26    ml.get_key(LLM_KV_LEADING_DENSE_BLOCK_COUNT,   hparams.n_layer_dense_lead, false);27    ml.get_key(LLM_KV_ATTENTION_Q_LORA_RANK,       hparams.n_lora_q);28    ml.get_key(LLM_KV_ATTENTION_KV_LORA_RANK,      hparams.n_lora_kv);29    ml.get_key(LLM_KV_ATTENTION_KEY_LENGTH_MLA,    hparams.n_embd_head_k_mla_impl);30    ml.get_key(LLM_KV_ATTENTION_VALUE_LENGTH_MLA,  hparams.n_embd_head_v_mla_impl);31    ml.get_key_or_arr(LLM_KV_EXPERT_FEED_FORWARD_LENGTH, hparams.n_ff_exp_arr, hparams.n_layer_all);32    ml.get_key(LLM_KV_EXPERT_SHARED_COUNT,         hparams.n_expert_shared);33    ml.get_key(LLM_KV_EXPERT_WEIGHTS_SCALE,        hparams.expert_weights_scale, false);34    ml.get_key(LLM_KV_EXPERT_WEIGHTS_NORM,         hparams.expert_weights_norm,  false);35    ml.get_key(LLM_KV_EXPERT_GATING_FUNC,          hparams.expert_gating_func,   false);36 37    // routed-expert SwiGLU logits clamp (shared/dense experts are NOT clamped, so38    // swiglu_clamp_shexp is intentionally left at its 0 default)39    ml.get_key_or_arr(LLM_KV_SWIGLU_CLAMP_EXP, hparams.swiglu_clamp_exp, hparams.n_layer_all, false);40 41    ml.get_key(LLM_KV_HYPER_CONNECTION_COUNT,     hparams.dsv4_hc_mult);42    ml.get_key(LLM_KV_HYPER_CONNECTION_EPSILON,   hparams.dsv4_hc_eps);43    ml.get_key(LLM_KV_HYPER_CONNECTION_MAGNITUDE, hparams.hc_magnitude);44 45    // DSA is absent on the all-full_attention checkpoints, so indexer_top_k stays 0 there46    ml.get_key(LLM_KV_ATTENTION_INDEXER_HEAD_COUNT, hparams.indexer_n_head,    false);47    ml.get_key(LLM_KV_ATTENTION_INDEXER_KEY_LENGTH, hparams.indexer_head_size, false);48    ml.get_key(LLM_KV_ATTENTION_INDEXER_TOP_K,      hparams.indexer_top_k,     false);49 50    if (hparams.indexer_top_k > 0) {51        // the reference plumbs rms_norm_eps into the indexer k_norm LayerNorm, and build_norm52        // reads f_norm_eps for LLM_NORM53        hparams.f_norm_eps = hparams.f_norm_rms_eps;54 55        if (hparams.indexer_n_head == 0 || hparams.indexer_head_size <= hparams.n_rot()) {56            throw std::runtime_error("hy_v4: bad indexer head count / key length");57        }58 59        ml.get_key_or_arr(LLM_KV_ATTENTION_INDEXER_TYPES, hparams.is_indexer_full_impl, hparams.n_layer(), false);60        if (!hparams.is_indexer_full(0)) {61            throw std::runtime_error("hy_v4: layer 0 must own an indexer, nothing precedes it to share");62        }63    }64 65    GGML_ASSERT(hparams.is_mla());66 67    type = LLM_TYPE_UNKNOWN;68}69 70void llama_model_hy_v4::load_arch_tensors(llama_model_loader &) {71    LLAMA_LOAD_LOCALS;72 73    const int64_t n_embd_head_k_mla   = hparams.n_embd_head_k_mla();74    const int64_t n_embd_head_v_mla   = hparams.n_embd_head_v_mla();75    const int64_t n_embd_head_qk_rope = hparams.n_rot();76    const int64_t n_embd_head_qk_nope = n_embd_head_k_mla - n_embd_head_qk_rope;77    GGML_ASSERT(n_embd_head_qk_nope >= 1);78 79    const int64_t q_lora_rank     = hparams.n_lora_q;80    const int64_t kv_lora_rank    = hparams.n_lora_kv;81    const int64_t n_ff_exp        = hparams.n_ff_exp();82    const int64_t n_expert_shared = hparams.n_expert_shared;83    const int64_t hc              = hparams.dsv4_hc_mult;84 85    tok_embd    = create_tensor(tn(LLM_TENSOR_TOKEN_EMBD, "weight"), {n_embd, n_vocab}, 0);86    output_norm = create_tensor(tn(LLM_TENSOR_OUTPUT_NORM, "weight"), {n_embd}, 0);87    output      = create_tensor(tn(LLM_TENSOR_OUTPUT,      "weight"), {n_embd, n_vocab}, 0);88 89    // global iHC head (collapses hc streams before the final norm)90    hc_head_fn    = create_tensor(tn(LLM_TENSOR_HC_HEAD_FN,    "weight"), {hc * n_embd, hc}, 0);91    hc_head_base  = create_tensor(tn(LLM_TENSOR_HC_HEAD_BASE,  "weight"), {hc}, 0);92    hc_head_scale = create_tensor(tn(LLM_TENSOR_HC_HEAD_SCALE, "weight"), {1}, 0);93 94    for (int i = 0; i < n_layer; ++i) {95        auto & layer = layers[i];96 97        layer.attn_norm     = create_tensor(tn(LLM_TENSOR_ATTN_NORM,     "weight", i), {n_embd}, 0);98        layer.attn_sinks    = create_tensor(tn(LLM_TENSOR_ATTN_SINKS,    "weight", i), {n_head}, 0);99 100        layer.wq_a          = create_tensor(tn(LLM_TENSOR_ATTN_Q_A,      "weight", i), {n_embd, q_lora_rank}, 0);101        layer.attn_q_a_norm = create_tensor(tn(LLM_TENSOR_ATTN_Q_A_NORM, "weight", i), {q_lora_rank}, 0);102        layer.wq_b          = create_tensor(tn(LLM_TENSOR_ATTN_Q_B,      "weight", i), {q_lora_rank, n_head * n_embd_head_k_mla}, 0);103        layer.wkv_a_mqa     = create_tensor(tn(LLM_TENSOR_ATTN_KV_A_MQA, "weight", i), {n_embd, kv_lora_rank + n_embd_head_qk_rope}, 0);104        layer.attn_kv_a_norm= create_tensor(tn(LLM_TENSOR_ATTN_KV_A_NORM,"weight", i), {kv_lora_rank}, 0);105        layer.wk_b          = create_tensor(tn(LLM_TENSOR_ATTN_K_B,      "weight", i), {n_embd_head_qk_nope, kv_lora_rank, n_head}, 0);106        layer.wv_b          = create_tensor(tn(LLM_TENSOR_ATTN_V_B,      "weight", i), {kv_lora_rank, n_embd_head_v_mla, n_head}, 0);107        layer.wo            = create_tensor(tn(LLM_TENSOR_ATTN_OUT,      "weight", i), {n_head * n_embd_head_v_mla, n_embd}, 0);108        layer.wqkv_gate     = create_tensor(tn(LLM_TENSOR_ATTN_GATE,     "weight", i), {n_embd, n_head * n_embd_head_v_mla}, 0);109 110        // only "full" indexer layers ship weights; "shared" layers reuse their top-k111        if (hparams.indexer_top_k > 0 && hparams.is_indexer_full(i)) {112            const int64_t n_indexer_head = hparams.indexer_n_head;113            const int64_t n_embd_indexer = hparams.indexer_head_size;114 115            layer.indexer_attn_q_b = create_tensor(tn(LLM_TENSOR_INDEXER_ATTN_Q_B, "weight", i), {q_lora_rank, n_indexer_head * n_embd_indexer}, 0);116            layer.indexer_attn_k   = create_tensor(tn(LLM_TENSOR_INDEXER_ATTN_K,   "weight", i), {n_embd, n_embd_indexer}, 0);117            layer.indexer_k_norm   = create_tensor(tn(LLM_TENSOR_INDEXER_K_NORM,   "weight", i), {n_embd_indexer}, 0);118            layer.indexer_k_norm_b = create_tensor(tn(LLM_TENSOR_INDEXER_K_NORM,   "bias",   i), {n_embd_indexer}, 0);119            layer.indexer_proj     = create_tensor(tn(LLM_TENSOR_INDEXER_PROJ,     "weight", i), {n_embd, n_indexer_head}, 0);120        }121 122        layer.hc_attn_fn    = create_tensor(tn(LLM_TENSOR_HC_ATTN_FN,    "weight", i), {hc * n_embd, 2 * hc}, 0);123        layer.hc_attn_base  = create_tensor(tn(LLM_TENSOR_HC_ATTN_BASE,  "weight", i), {2 * hc}, 0);124        layer.hc_attn_scale = create_tensor(tn(LLM_TENSOR_HC_ATTN_SCALE, "weight", i), {2}, 0);125        layer.hc_ffn_fn     = create_tensor(tn(LLM_TENSOR_HC_FFN_FN,     "weight", i), {hc * n_embd, 2 * hc}, 0);126        layer.hc_ffn_base   = create_tensor(tn(LLM_TENSOR_HC_FFN_BASE,   "weight", i), {2 * hc}, 0);127        layer.hc_ffn_scale  = create_tensor(tn(LLM_TENSOR_HC_FFN_SCALE,  "weight", i), {2}, 0);128 129        layer.ffn_norm = create_tensor(tn(LLM_TENSOR_FFN_NORM, "weight", i), {n_embd}, 0);130 131        if (i < (int) hparams.n_layer_dense_lead) {132            layer.ffn_gate = create_tensor(tn(LLM_TENSOR_FFN_GATE, "weight", i), {n_embd,   n_ff}, 0);133            layer.ffn_down = create_tensor(tn(LLM_TENSOR_FFN_DOWN, "weight", i), {  n_ff, n_embd}, 0);134            layer.ffn_up   = create_tensor(tn(LLM_TENSOR_FFN_UP,   "weight", i), {n_embd,   n_ff}, 0);135        } else {136            layer.ffn_gate_inp    = create_tensor(tn(LLM_TENSOR_FFN_GATE_INP,    "weight", i), {n_embd, n_expert}, 0);137            layer.ffn_exp_probs_b = create_tensor(tn(LLM_TENSOR_FFN_EXP_PROBS_B, "bias",   i), {n_expert}, TENSOR_NOT_REQUIRED);138 139            if (n_expert == 0) {140                throw std::runtime_error("n_expert must be > 0");141            }142            if (n_expert_used == 0) {143                throw std::runtime_error("n_expert_used must be > 0");144            }145 146            layer.ffn_gate_exps = create_tensor(tn(LLM_TENSOR_FFN_GATE_EXPS, "weight", i), {n_embd,   n_ff_exp, n_expert}, 0);147            layer.ffn_up_exps   = create_tensor(tn(LLM_TENSOR_FFN_UP_EXPS,   "weight", i), {n_embd,   n_ff_exp, n_expert}, 0);148            layer.ffn_down_exps = create_tensor(tn(LLM_TENSOR_FFN_DOWN_EXPS, "weight", i), {n_ff_exp, n_embd,   n_expert}, 0);149 150            layer.ffn_gate_shexp = create_tensor(tn(LLM_TENSOR_FFN_GATE_SHEXP, "weight", i), {n_embd, n_ff_exp * n_expert_shared}, 0);151            layer.ffn_down_shexp = create_tensor(tn(LLM_TENSOR_FFN_DOWN_SHEXP, "weight", i), {n_ff_exp * n_expert_shared, n_embd}, 0);152            layer.ffn_up_shexp   = create_tensor(tn(LLM_TENSOR_FFN_UP_SHEXP,   "weight", i), {n_embd, n_ff_exp * n_expert_shared}, 0);153        }154    }155}156 157std::unique_ptr<llm_graph_context> llama_model_hy_v4::build_arch_graph(const llm_graph_params & params) const {158    return std::make_unique<graph>(*this, params);159}160 161// reduce hc streams x[:,i,:] weighted by w[i,:] -> [n_embd, n_tokens]162// reference runs this in fp32 (inside the float() / autocast(fp32) context)163static ggml_tensor * hy_v4_hc_reduce(ggml_context * ctx0, ggml_tensor * x, ggml_tensor * w, int64_t hc, int64_t n_embd, int64_t nt, ggml_type out_type) {164    ggml_tensor * x_f32 = ggml_cast(ctx0, x, GGML_TYPE_F32);165    ggml_tensor * result = nullptr;166    for (int64_t ih = 0; ih < hc; ++ih) {167        ggml_tensor * xh = ggml_view_2d(ctx0, x_f32, n_embd, nt, x_f32->nb[2], ih * x_f32->nb[1]);168        ggml_tensor * wh = ggml_view_2d(ctx0, w, 1, nt, w->nb[1], ih * w->nb[0]);169        ggml_tensor * cur = ggml_mul(ctx0, xh, wh);170        result = result ? ggml_add(ctx0, result, cur) : cur;171    }172    return ggml_cast(ctx0, result, out_type);173}174 175ggml_tensor * llama_model_hy_v4::graph::build_hc_pre(176        ggml_tensor * x,177        ggml_tensor * hc_fn,178        ggml_tensor * hc_scale,179        ggml_tensor * hc_base,180        ggml_tensor ** post,181        int il) const {182    const int64_t hc  = hparams.dsv4_hc_mult;183    const int64_t nt  = x->ne[2];184    GGML_ASSERT(x->ne[0] == n_embd && x->ne[1] == hc);185 186    ggml_tensor * flat = ggml_reshape_2d(ctx0, x, hc * n_embd, nt);187    ggml_tensor * flat_norm = ggml_rms_norm(ctx0, flat, hparams.f_norm_rms_eps);188    ggml_tensor * mixes = ggml_mul_mat(ctx0, hc_fn, flat_norm); // [2*hc, nt]189    cb(mixes, "hc_mixes", il);190 191    ggml_tensor * scale_pre  = hy_v4_view_1d(ctx0, hc_scale, 1, 0);192    ggml_tensor * scale_post = hy_v4_view_1d(ctx0, hc_scale, 1, 1);193    ggml_tensor * base_pre   = hy_v4_view_1d(ctx0, hc_base, hc, 0);194    ggml_tensor * base_post  = hy_v4_view_1d(ctx0, hc_base, hc, hc);195 196    // pre = sigmoid(mixes[:hc]*scale_pre + base_pre) + eps197    ggml_tensor * pre = hy_v4_view_2d(ctx0, mixes, hc, nt, 0);198    pre = ggml_mul(ctx0, pre, scale_pre);199    pre = ggml_add(ctx0, pre, base_pre);200    pre = ggml_sigmoid(ctx0, pre);201    pre = ggml_scale_bias(ctx0, pre, 1.0f, hparams.dsv4_hc_eps);202    cb(pre, "hc_pre", il);203 204    // post = magnitude*sigmoid(mixes[hc:2hc]*scale_post + base_post) + eps205    ggml_tensor * po = hy_v4_view_2d(ctx0, mixes, hc, nt, hc);206    po = ggml_mul(ctx0, po, scale_post);207    po = ggml_add(ctx0, po, base_post);208    po = ggml_sigmoid(ctx0, po);209    po = ggml_scale(ctx0, po, hparams.hc_magnitude);210    po = ggml_scale_bias(ctx0, po, 1.0f, hparams.dsv4_hc_eps);211    *post = po;212    cb(po, "hc_post_gate", il);213 214    return hy_v4_hc_reduce(ctx0, x, pre, hc, n_embd, nt, x->type);215}216 217ggml_tensor * llama_model_hy_v4::graph::build_hc_post(218        ggml_tensor * x,219        ggml_tensor * residual,220        ggml_tensor * post,221        int il) const {222    GGML_UNUSED(il);223    const int64_t hc = hparams.dsv4_hc_mult;224    const int64_t nt = x->ne[1];225    GGML_ASSERT(x->ne[0] == n_embd);226    GGML_ASSERT(residual->ne[1] == hc);227 228    // reference HC post runs entirely in fp32 to avoid bf16 rounding accumulation229    // across 78 layers: post.float() * x.float() + residual.float() -> .to(dtype)230    ggml_tensor * x_f32    = ggml_cast(ctx0, x, GGML_TYPE_F32);231    ggml_tensor * post_f32 = ggml_cast(ctx0, post, GGML_TYPE_F32);232    ggml_tensor * res_f32  = ggml_cast(ctx0, residual, GGML_TYPE_F32);233 234    ggml_tensor * out = nullptr;235    for (int64_t i = 0; i < hc; ++i) {236        ggml_tensor * res_i  = ggml_view_2d(ctx0, res_f32, n_embd, nt, res_f32->nb[2], i * res_f32->nb[1]);237        ggml_tensor * post_i = ggml_view_2d(ctx0, post_f32, 1, nt, post_f32->nb[1], i * post_f32->nb[0]);238        ggml_tensor * cur = ggml_add(ctx0, res_i, ggml_mul(ctx0, x_f32, post_i));239        cur = ggml_reshape_3d(ctx0, cur, n_embd, 1, nt);240        out = out ? ggml_concat(ctx0, out, cur, 1) : cur;241    }242 243    // cast back to the original type (bf16)244    out = ggml_cast(ctx0, out, residual->type);245    return out; // [n_embd, hc, nt]246}247 248ggml_tensor * llama_model_hy_v4::graph::build_hc_head(249        ggml_tensor * x,250        ggml_tensor * hc_fn,251        ggml_tensor * hc_scale,252        ggml_tensor * hc_base) const {253    const int64_t hc = hparams.dsv4_hc_mult;254    const int64_t nt = x->ne[2];255 256    ggml_tensor * flat = ggml_reshape_2d(ctx0, x, hc * n_embd, nt);257    ggml_tensor * flat_norm = ggml_rms_norm(ctx0, flat, hparams.f_norm_rms_eps);258    ggml_tensor * mixes = ggml_mul_mat(ctx0, hc_fn, flat_norm); // [hc, nt]259    cb(mixes, "hc_head_mixes", -1);260 261    ggml_tensor * pre = ggml_mul(ctx0, mixes, hc_scale);262    pre = ggml_add(ctx0, pre, hc_base);263    pre = ggml_sigmoid(ctx0, pre);264    pre = ggml_scale_bias(ctx0, pre, 1.0f, hparams.dsv4_hc_eps);265    cb(pre, "hc_head_pre", -1);266 267    return hy_v4_hc_reduce(ctx0, x, pre, hc, n_embd, nt, x->type);268}269 270ggml_tensor * llama_model_hy_v4::graph::build_attention(271        const llama_model & model,272        llm_graph_input_attn_k * inp_attn,273        ggml_tensor * cur,274        ggml_tensor * inp_pos,275        float kq_scale,276        int il) const {277    const auto & layer = model.layers[il];278 279    const int64_t n_embd_head_k       = hparams.n_embd_head_k_mla();280    const int64_t n_embd_head_qk_rope = hparams.n_rot();281    const int64_t n_embd_head_qk_nope = n_embd_head_k - n_embd_head_qk_rope;282    const uint32_t kv_lora_rank       = hparams.n_lora_kv;283 284    ggml_tensor * q = ggml_mul_mat(ctx0, layer.wq_a, cur);285    q = build_norm(q, layer.attn_q_a_norm, nullptr, LLM_NORM_RMS, il);286    q = ggml_mul_mat(ctx0, layer.wq_b, q);287 288    ggml_tensor * q_nope = ggml_view_3d(ctx0, q, n_embd_head_qk_nope, n_head, n_tokens,289            ggml_row_size(q->type, n_embd_head_k), ggml_row_size(q->type, n_embd_head_k) * n_head, 0);290    ggml_tensor * q_pe = ggml_view_3d(ctx0, q, n_embd_head_qk_rope, n_head, n_tokens,291            ggml_row_size(q->type, n_embd_head_k), ggml_row_size(q->type, n_embd_head_k) * n_head,292            ggml_row_size(q->type, n_embd_head_qk_nope));293 294    ggml_tensor * kv_cmpr_pe = ggml_mul_mat(ctx0, layer.wkv_a_mqa, cur);295    ggml_tensor * kv_cmpr = ggml_view_2d(ctx0, kv_cmpr_pe, kv_lora_rank, n_tokens,296            ggml_row_size(kv_cmpr_pe->type, kv_lora_rank + n_embd_head_qk_rope), 0);297    ggml_tensor * k_pe = ggml_view_3d(ctx0, kv_cmpr_pe, n_embd_head_qk_rope, 1, n_tokens,298            ggml_row_size(kv_cmpr_pe->type, kv_lora_rank + n_embd_head_qk_rope),299            ggml_row_size(kv_cmpr_pe->type, kv_lora_rank + n_embd_head_qk_rope),300            ggml_row_size(kv_cmpr_pe->type, kv_lora_rank));301 302    q_pe = ggml_rope_ext(ctx0, q_pe, inp_pos, nullptr, n_rot, rope_type, n_ctx_orig, freq_base, freq_scale,303            ext_factor, attn_factor, beta_fast, beta_slow);304    cb(q_pe, "q_pe", il);305    k_pe = ggml_rope_ext(ctx0, k_pe, inp_pos, nullptr, n_rot, rope_type, n_ctx_orig, freq_base, freq_scale,306            ext_factor, attn_factor, beta_fast, beta_slow);307    cb(k_pe, "k_pe", il);308 309    kv_cmpr = build_norm(kv_cmpr, layer.attn_kv_a_norm, nullptr, LLM_NORM_RMS, il);310    cb(kv_cmpr, "kv_cmpr", il);311 312    // MLA absorption: q_nope @ wk_b -> compressed space313    q_nope = ggml_permute(ctx0, q_nope, 0, 2, 1, 3);314    ggml_tensor * q_nope_absorbed = ggml_mul_mat(ctx0, layer.wk_b, q_nope);315    q_nope_absorbed = ggml_permute(ctx0, q_nope_absorbed, 0, 2, 1, 3);316 317    // note: rope must go first for in-place context shifting in build_rope_shift()318    ggml_tensor * Qcur = ggml_concat(ctx0, q_nope_absorbed, q_pe, 0);319 320    kv_cmpr = ggml_reshape_3d(ctx0, kv_cmpr, kv_lora_rank, 1, n_tokens);321    ggml_tensor * Kcur = ggml_concat(ctx0, kv_cmpr, k_pe, 0);322    ggml_tensor * Vcur = kv_cmpr;323 324    // MLA-as-MQA; wo applied manually below so the gated-MLA gate can sit before o_proj325    ggml_tensor * attn = build_attn(inp_attn,326            nullptr, nullptr, nullptr,327            Qcur, Kcur, Vcur, nullptr, layer.attn_sinks, layer.wv_b, kq_scale, il);328    cb(attn, "attn_kqv", il); // [n_head * n_embd_head_v, n_tokens]329 330    // gated MLA: elementwise sigmoid gate on the decompressed attention output331    ggml_tensor * gate = ggml_mul_mat(ctx0, layer.wqkv_gate, cur);332    gate = ggml_sigmoid(ctx0, gate);333    attn = ggml_mul(ctx0, attn, gate);334    cb(attn, "attn_gated", il);335 336    ggml_tensor * out = build_lora_mm(layer.wo, attn);337    cb(out, "attn_out", il);338 339    return out;340}341 342ggml_tensor * llama_model_hy_v4::graph::build_indexer_top_k(343        const llama_model & model,344        llm_graph_input_attn_k_dsa * inp_attn_dsa,345        ggml_tensor * cur,346        ggml_tensor * qr,347        ggml_tensor * inp_pos,348        int il) const {349    const auto & layer = model.layers[il];350 351    const int64_t n_indexer_head       = hparams.indexer_n_head;352    const int64_t n_embd_indexer       = hparams.indexer_head_size;353    const int64_t n_embd_indexer_rope  = hparams.n_rot();354    const int64_t n_embd_indexer_nope  = n_embd_indexer - n_embd_indexer_rope;355 356    // nope rows come first, so rope only the last n_embd_indexer_rope rows, same as the MLA path357    ggml_tensor * iq = ggml_mul_mat(ctx0, layer.indexer_attn_q_b, qr);358 359    iq = ggml_reshape_3d(ctx0, iq, n_embd_indexer, n_indexer_head, n_tokens);360 361    iq = ggml_rope_ext(ctx0, iq, inp_pos, nullptr, n_rot, rope_type, n_ctx_orig, freq_base,362         freq_scale, ext_factor, attn_factor, beta_fast, beta_slow);363    iq = ggml_rope_set_offset(iq, n_embd_indexer_nope);364    cb(iq, "indexer_q", il);365 366    ggml_tensor * ik = ggml_mul_mat(ctx0, layer.indexer_attn_k, cur);367 368    ik = build_norm(ik, layer.indexer_k_norm, layer.indexer_k_norm_b, LLM_NORM, il);369 370    ik = ggml_reshape_3d(ctx0, ik, n_embd_indexer, 1, n_tokens);371 372    ik = ggml_rope_ext(ctx0, ik, inp_pos, nullptr, n_rot, rope_type, n_ctx_orig, freq_base,373         freq_scale, ext_factor, attn_factor, beta_fast, beta_slow);374    ik = ggml_rope_set_offset(ik, n_embd_indexer_nope);375    cb(ik, "indexer_k", il);376 377    // the reference applies a Hadamard rotation here, but it only helps its FP8 kernels.378    // it is orthogonal, so it does not change q.k and we can skip it.379 380    const auto * mctx_lid   = inp_attn_dsa->mctx->get_lid();381    const auto & k_idxs_lid = inp_attn_dsa->get_k_idxs_lid();382    ggml_build_forward_expand(gf, mctx_lid->cpy_k(ctx0, ik, k_idxs_lid, il));383 384    ggml_tensor * iw = ggml_mul_mat(ctx0, layer.indexer_proj, cur);385 386    ik = mctx_lid->get_k(ctx0, il);387 388    const auto n_stream = ik->ne[3];389    iq = ggml_view_4d(ctx0, iq, iq->ne[0], iq->ne[1], iq->ne[2]/n_stream, n_stream,390            iq->nb[1], iq->nb[2], iq->nb[3]/n_stream, 0);391    iw = ggml_view_4d(ctx0, iw, iw->ne[0], iw->ne[1]/n_stream, iw->ne[2], n_stream,392            iw->nb[1], iw->nb[2]/n_stream, iw->nb[3]/n_stream, 0);393 394    // fold both reference scale factors into the weights before the big score tensor395    iw = ggml_scale(ctx0, iw, 1.0f / sqrtf(float(n_embd_indexer * n_indexer_head)));396 397    ggml_tensor * score = nullptr;398    if (cparams.fused_lid) {399        score = ggml_lightning_indexer(ctx0, iq, ik, iw, inp_attn_dsa->get_kq_mask_lid());400        cb(score, "indexer_score", il);401        res->add_fused_node({LLM_FUSED_OP_LIGHTNING_INDEXER, score, il});402    } else {403        iq = ggml_permute(ctx0, iq, 0, 2, 1, 3);404        ik = ggml_permute(ctx0, ik, 0, 2, 1, 3);405 406        score = ggml_mul_mat(ctx0, ik, iq);407        score = ggml_cont(ctx0, ggml_permute(ctx0, score, 2, 1, 0, 3));408        score = ggml_relu(ctx0, score);409        score = ggml_mul(ctx0, score, iw);410        score = ggml_sum_rows(ctx0, score);411        score = ggml_cont(ctx0, ggml_permute(ctx0, score, 2, 1, 0, 3));412        score = ggml_add(ctx0, score, inp_attn_dsa->get_kq_mask_lid());413        cb(score, "indexer_score", il);414    }415 416    const uint32_t n_top_k = score->ne[0] < (int64_t) hparams.indexer_top_k ? score->ne[0] : hparams.indexer_top_k;417 418    return ggml_cont(ctx0, ggml_top_k(ctx0, score, n_top_k));419}420 421ggml_tensor * llama_model_hy_v4::graph::build_attention_dsa(422        const llama_model & model,423        llm_graph_input_attn_k_dsa * inp_attn_dsa,424        ggml_tensor * cur,425        ggml_tensor * inp_pos,426        ggml_tensor ** last_top_k,427        float kq_scale,428        int il) const {429    const auto & layer = model.layers[il];430 431    const int64_t n_embd_head_k       = hparams.n_embd_head_k_mla();432    const int64_t n_embd_head_qk_rope = hparams.n_rot();433    const int64_t n_embd_head_qk_nope = n_embd_head_k - n_embd_head_qk_rope;434    const uint32_t kv_lora_rank       = hparams.n_lora_kv;435 436    ggml_tensor * qr = ggml_mul_mat(ctx0, layer.wq_a, cur);437    qr = build_norm(qr, layer.attn_q_a_norm, nullptr, LLM_NORM_RMS, il);438 439    if (hparams.is_indexer_full(il)) {440        *last_top_k = build_indexer_top_k(model, inp_attn_dsa, cur, qr, inp_pos, il);441        cb(*last_top_k, "top_k", il);442    }443    GGML_ASSERT(*last_top_k != nullptr);444 445    ggml_tensor * q = ggml_mul_mat(ctx0, layer.wq_b, qr);446 447    ggml_tensor * q_nope = ggml_view_3d(ctx0, q, n_embd_head_qk_nope, n_head, n_tokens,448            ggml_row_size(q->type, n_embd_head_k), ggml_row_size(q->type, n_embd_head_k) * n_head, 0);449    ggml_tensor * q_pe = ggml_view_3d(ctx0, q, n_embd_head_qk_rope, n_head, n_tokens,450            ggml_row_size(q->type, n_embd_head_k), ggml_row_size(q->type, n_embd_head_k) * n_head,451            ggml_row_size(q->type, n_embd_head_qk_nope));452 453    ggml_tensor * kv_cmpr_pe = ggml_mul_mat(ctx0, layer.wkv_a_mqa, cur);454    ggml_tensor * kv_cmpr = ggml_view_2d(ctx0, kv_cmpr_pe, kv_lora_rank, n_tokens,455            ggml_row_size(kv_cmpr_pe->type, kv_lora_rank + n_embd_head_qk_rope), 0);456    ggml_tensor * k_pe = ggml_view_3d(ctx0, kv_cmpr_pe, n_embd_head_qk_rope, 1, n_tokens,457            ggml_row_size(kv_cmpr_pe->type, kv_lora_rank + n_embd_head_qk_rope),458            ggml_row_size(kv_cmpr_pe->type, kv_lora_rank + n_embd_head_qk_rope),459            ggml_row_size(kv_cmpr_pe->type, kv_lora_rank));460 461    q_pe = ggml_rope_ext(ctx0, q_pe, inp_pos, nullptr, n_rot, rope_type, n_ctx_orig, freq_base, freq_scale,462            ext_factor, attn_factor, beta_fast, beta_slow);463    cb(q_pe, "q_pe", il);464    k_pe = ggml_rope_ext(ctx0, k_pe, inp_pos, nullptr, n_rot, rope_type, n_ctx_orig, freq_base, freq_scale,465            ext_factor, attn_factor, beta_fast, beta_slow);466    cb(k_pe, "k_pe", il);467 468    kv_cmpr = build_norm(kv_cmpr, layer.attn_kv_a_norm, nullptr, LLM_NORM_RMS, il);469    cb(kv_cmpr, "kv_cmpr", il);470 471    q_nope = ggml_permute(ctx0, q_nope, 0, 2, 1, 3);472    ggml_tensor * q_nope_absorbed = ggml_mul_mat(ctx0, layer.wk_b, q_nope);473    q_nope_absorbed = ggml_permute(ctx0, q_nope_absorbed, 0, 2, 1, 3);474 475    ggml_tensor * Qcur = ggml_concat(ctx0, q_nope_absorbed, q_pe, 0);476 477    kv_cmpr = ggml_reshape_3d(ctx0, kv_cmpr, kv_lora_rank, 1, n_tokens);478    ggml_tensor * Kcur = ggml_concat(ctx0, kv_cmpr, k_pe, 0);479    ggml_tensor * Vcur = kv_cmpr;480 481    ggml_tensor * attn = build_attn(inp_attn_dsa,482            nullptr, nullptr, nullptr,483            Qcur, Kcur, Vcur, nullptr, layer.attn_sinks, layer.wv_b, *last_top_k, kq_scale, il);484    cb(attn, "attn_kqv", il);485 486    ggml_tensor * gate = ggml_mul_mat(ctx0, layer.wqkv_gate, cur);487    gate = ggml_sigmoid(ctx0, gate);488    attn = ggml_mul(ctx0, attn, gate);489    cb(attn, "attn_gated", il);490 491    ggml_tensor * out = build_lora_mm(layer.wo, attn);492    cb(out, "attn_out", il);493 494    return out;495}496 497llama_model_hy_v4::graph::graph(const llama_model & model, const llm_graph_params & params) :498    llm_graph_context(params) {499    const int64_t hc = hparams.dsv4_hc_mult;500    const int64_t n_embd_head_k = hparams.n_embd_head_k_mla();501    const float kq_scale = 1.0f / sqrtf(float(n_embd_head_k));502 503    ggml_tensor * cur;504 505    const bool is_dsa = hparams.indexer_top_k > 0;506 507    ggml_tensor * inp = build_inp_embd(model.tok_embd);508    ggml_tensor * inp_pos = build_inp_pos();509    llm_graph_input_attn_k     * inp_attn     = is_dsa ? nullptr : build_attn_inp_k();510    llm_graph_input_attn_k_dsa * inp_attn_dsa = is_dsa ? build_attn_inp_k_dsa() : nullptr;511    ggml_tensor * inp_out_ids = build_inp_out_ids();512 513    // top-k of the last "full" indexer layer, reused by the following "shared" layers514    ggml_tensor * last_top_k = nullptr;515 516    // expand the single embedding into hc parallel residual streams517    ggml_tensor * inpL = ggml_reshape_3d(ctx0, inp, n_embd, 1, n_tokens);518    inpL = ggml_repeat_4d(ctx0, inpL, n_embd, hc, n_tokens, 1);519    cb(inpL, "hc_init", -1);520 521    for (int il = 0; il < n_layer; ++il) {522        ggml_tensor * residual = inpL;523        ggml_tensor * post = nullptr;524 525        cur = build_hc_pre(inpL, model.layers[il].hc_attn_fn, model.layers[il].hc_attn_scale,526                model.layers[il].hc_attn_base, &post, il);527        cur = build_norm(cur, model.layers[il].attn_norm, nullptr, LLM_NORM_RMS, il);528        cb(cur, "attn_norm", il);529 530        cur = is_dsa531            ? build_attention_dsa(model, inp_attn_dsa, cur, inp_pos, &last_top_k, kq_scale, il)532            : build_attention(model, inp_attn, cur, inp_pos, kq_scale, il);533 534        inpL = build_hc_post(cur, residual, post, il);535        cb(inpL, "hc_attn_out", il);536 537        residual = inpL;538        cur = build_hc_pre(inpL, model.layers[il].hc_ffn_fn, model.layers[il].hc_ffn_scale,539                model.layers[il].hc_ffn_base, &post, il);540        cur = build_norm(cur, model.layers[il].ffn_norm, nullptr, LLM_NORM_RMS, il);541        cb(cur, "ffn_norm", il);542 543        const auto & layer = model.layers[il];544        if ((uint32_t) il < hparams.n_layer_dense_lead) {545            cur = build_ffn(cur,546                    layer.ffn_up,   NULL, NULL,547                    layer.ffn_gate, NULL, NULL,548                    layer.ffn_down, NULL, NULL,549                    NULL, LLM_FFN_SILU, LLM_FFN_PAR, il);550            cb(cur, "ffn_out", il);551        } else {552            ggml_tensor * moe_out = build_moe_ffn(cur,553                    layer.ffn_gate_inp,554                    layer.ffn_up_exps,555                    layer.ffn_gate_exps,556                    layer.ffn_down_exps,557                    layer.ffn_exp_probs_b,558                    n_expert, n_expert_used,559                    LLM_FFN_SILU, hparams.expert_weights_norm,560                    hparams.expert_weights_scale,561                    (llama_expert_gating_func_type) hparams.expert_gating_func,562                    il,563                    nullptr,564                    nullptr);565            cb(moe_out, "ffn_moe_out", il);566 567            ggml_tensor * ffn_shexp = build_ffn(cur,568                    layer.ffn_up_shexp,   NULL, NULL,569                    layer.ffn_gate_shexp, NULL, NULL,570                    layer.ffn_down_shexp, NULL, NULL,571                    NULL, LLM_FFN_SILU, LLM_FFN_PAR, il);572            cb(ffn_shexp, "ffn_shexp", il);573 574            cur = ggml_add(ctx0, moe_out, ffn_shexp);575            cb(cur, "ffn_out", il);576        }577 578        inpL = build_hc_post(cur, residual, post, il);579        cb(inpL, "l_out", il);580    }581 582    // prune to the requested output rows once, after all HC streams are done583    if (inp_out_ids) {584        ggml_tensor * flat = ggml_reshape_2d(ctx0, inpL, n_embd * hc, n_tokens);585        flat = ggml_get_rows(ctx0, flat, inp_out_ids);586        inpL = ggml_reshape_3d(ctx0, flat, n_embd, hc, n_outputs);587    }588 589    cur = build_hc_head(inpL, model.hc_head_fn, model.hc_head_scale, model.hc_head_base);590    cb(cur, "hc_head", -1);591 592    cur = build_norm(cur, model.output_norm, nullptr, LLM_NORM_RMS, -1);593    cb(cur, "result_norm", -1);594    res->t_embd = cur;595 596    cur = ggml_mul_mat(ctx0, model.output, cur);597    cb(cur, "result_output", -1);598    res->t_logits = cur;599 600    ggml_build_forward_expand(gf, cur);601}602