DeepseekV4 MTP + DSpark (#25784)

This commit is contained in:
Aman Gupta
2026-08-02 20:55:34 +08:00
committed by GitHub
parent f5919bf458
commit 596a5795bd
14 changed files with 1534 additions and 225 deletions

View File

@@ -619,6 +619,63 @@ bool llm_graph_input_attn_kv_iswa::can_reuse(const llm_graph_params & params) {
return res;
}
void llm_graph_input_attn_k_iswa::set_input(const llama_ubatch * ubatch) {
// base tensors may not be allocated if there are no non-SWA attention layers
if (self_k_idxs && self_k_idxs->buffer) {
mctx->get_base()->set_input_k_idxs(self_k_idxs, ubatch);
}
// the kq mask guards on its own buffer: shared cells leave idxs unbacked while the mask stays live
if (self_kq_mask && self_kq_mask->buffer) {
mctx->get_base()->set_input_kq_mask(self_kq_mask, ubatch, cparams.causal_attn);
}
// swa tensors may not be allocated if there are no SWA attention layers
if (self_k_idxs_swa && self_k_idxs_swa->buffer) {
mctx->get_swa()->set_input_k_idxs(self_k_idxs_swa, ubatch);
}
if (self_kq_mask_swa && self_kq_mask_swa->buffer) {
mctx->get_swa()->set_input_kq_mask(self_kq_mask_swa, ubatch, cparams.causal_attn);
}
if (self_k_rot && self_k_rot->buffer) {
mctx->get_base()->set_input_k_rot(self_k_rot);
}
if (self_k_rot_swa && self_k_rot_swa->buffer) {
mctx->get_swa()->set_input_k_rot(self_k_rot_swa);
}
}
bool llm_graph_input_attn_k_iswa::can_reuse(const llm_graph_params & params) {
const auto * mctx = static_cast<const llama_kv_cache_iswa_context *>(params.mctx);
this->mctx = mctx;
bool res = true;
// base tensors may not be allocated if there are no non-SWA attention layers
if (self_k_idxs && self_k_idxs->buffer) {
res &= self_k_idxs->ne[0] == params.ubatch.n_tokens;
}
if (self_kq_mask && self_kq_mask->buffer) {
res &= can_reuse_kq_mask(self_kq_mask, mctx->get_base(), params.ubatch, params.cparams);
}
// swa tensors may not be allocated if there are no SWA attention layers
if (self_k_idxs_swa && self_k_idxs_swa->buffer) {
res &= self_k_idxs_swa->ne[0] == params.ubatch.n_tokens;
}
if (self_kq_mask_swa && self_kq_mask_swa->buffer) {
res &= can_reuse_kq_mask(self_kq_mask_swa, mctx->get_swa(), params.ubatch, params.cparams);
}
return res;
}
static void dsv4_set_i64(ggml_tensor * dst, const std::vector<int64_t> & src) {
if (!dst || !dst->buffer) {
return;
@@ -754,6 +811,10 @@ static void dsv4_set_comp_inputs(
dsv4_set_i32(inp.state_pos, plan.state_pos);
dsv4_set_i32(inp.state_persist_src_idxs, plan.state_persist_src_idxs);
dsv4_set_i32(inp.state_persist_dst_idxs, plan.state_persist_dst_idxs);
dsv4_set_i32(inp.state_restore_src_idxs, plan.state_restore_src_idxs);
dsv4_set_i32(inp.state_restore_dst_idxs, plan.state_restore_dst_idxs);
dsv4_set_i32(inp.state_snapshot_src_idxs, plan.state_snapshot_src_idxs);
dsv4_set_i32(inp.state_snapshot_dst_idxs, plan.state_snapshot_dst_idxs);
dsv4_set_i32(inp.state_read_idxs, plan.state_read_idxs);
dsv4_set_i64(inp.state_write_idxs, plan.state_write_idxs);
dsv4_set_i32(inp.state_write_pos, plan.state_write_pos);
@@ -798,6 +859,10 @@ static bool dsv4_can_reuse_comp_input(
res &= dsv4_can_reuse_tensor_1d(inp.state_pos, plan.state_pos.size());
res &= dsv4_can_reuse_tensor_1d(inp.state_persist_src_idxs, plan.state_persist_src_idxs.size());
res &= dsv4_can_reuse_tensor_1d(inp.state_persist_dst_idxs, plan.state_persist_dst_idxs.size());
res &= dsv4_can_reuse_tensor_1d(inp.state_restore_src_idxs, plan.state_restore_src_idxs.size());
res &= dsv4_can_reuse_tensor_1d(inp.state_restore_dst_idxs, plan.state_restore_dst_idxs.size());
res &= dsv4_can_reuse_tensor_1d(inp.state_snapshot_src_idxs, plan.state_snapshot_src_idxs.size());
res &= dsv4_can_reuse_tensor_1d(inp.state_snapshot_dst_idxs, plan.state_snapshot_dst_idxs.size());
res &= dsv4_can_reuse_tensor_1d(inp.state_read_idxs, plan.state_read_idxs.size());
res &= dsv4_can_reuse_tensor_1d(inp.state_write_idxs, plan.state_write_idxs.size());
res &= dsv4_can_reuse_tensor_1d(inp.state_write_pos, plan.state_write_pos.size());
@@ -832,6 +897,10 @@ static void dsv4_build_comp_inputs(
inp.state_pos = dsv4_build_input_1d(ctx, GGML_TYPE_I32, plan.state_pos.size(), std::string("dsv4_") + name + "_state_pos");
inp.state_persist_src_idxs = dsv4_build_input_1d(ctx, GGML_TYPE_I32, plan.state_persist_src_idxs.size(), std::string("dsv4_") + name + "_state_persist_src_idxs");
inp.state_persist_dst_idxs = dsv4_build_input_1d(ctx, GGML_TYPE_I32, plan.state_persist_dst_idxs.size(), std::string("dsv4_") + name + "_state_persist_dst_idxs");
inp.state_restore_src_idxs = dsv4_build_input_1d(ctx, GGML_TYPE_I32, plan.state_restore_src_idxs.size(), std::string("dsv4_") + name + "_state_restore_src_idxs");
inp.state_restore_dst_idxs = dsv4_build_input_1d(ctx, GGML_TYPE_I32, plan.state_restore_dst_idxs.size(), std::string("dsv4_") + name + "_state_restore_dst_idxs");
inp.state_snapshot_src_idxs = dsv4_build_input_1d(ctx, GGML_TYPE_I32, plan.state_snapshot_src_idxs.size(), std::string("dsv4_") + name + "_state_snapshot_src_idxs");
inp.state_snapshot_dst_idxs = dsv4_build_input_1d(ctx, GGML_TYPE_I32, plan.state_snapshot_dst_idxs.size(), std::string("dsv4_") + name + "_state_snapshot_dst_idxs");
inp.state_read_idxs = dsv4_build_input_1d(ctx, GGML_TYPE_I32, plan.state_read_idxs.size(), std::string("dsv4_") + name + "_state_read_idxs");
inp.state_write_idxs = dsv4_build_input_1d(ctx, GGML_TYPE_I64, plan.state_write_idxs.size(), std::string("dsv4_") + name + "_state_write_idxs");
inp.state_write_pos = dsv4_build_input_1d(ctx, GGML_TYPE_I32, plan.state_write_pos.size(), std::string("dsv4_") + name + "_state_write_pos");
@@ -1195,7 +1264,7 @@ void llm_graph_result::reset() {
t_embd_pooled = nullptr;
t_h_nextn = nullptr;
t_layer_inp.resize(LLAMA_MAX_LAYERS);
t_layer_inp.resize(LLAMA_MAX_LAYERS + 1);
std::fill(t_layer_inp.begin(), t_layer_inp.end(), nullptr);
t_sampled.clear();
@@ -1650,7 +1719,7 @@ ggml_tensor * llm_graph_context::build_ffn(
tmp = ggml_clamp(ctx0, tmp, -limit, limit);
cb(tmp, "ffn_up_clamped", il);
if (arch == LLM_ARCH_DEEPSEEK4) {
if (arch == LLM_ARCH_DEEPSEEK4 || (arch == LLM_ARCH_DFLASH && hparams.dsv4_hc_mult > 0)) {
cur = ggml_clamp(ctx0, cur, -INFINITY, limit);
cb(cur, "ffn_gate_clamped", il);
cur = ggml_swiglu_split(ctx0, cur, tmp);
@@ -2045,7 +2114,7 @@ ggml_tensor * llm_graph_context::build_moe_ffn(
up = ggml_clamp(ctx0, up, -limit, limit);
cb(up, "ffn_moe_up_clamped", il);
if (arch == LLM_ARCH_DEEPSEEK4) {
if (arch == LLM_ARCH_DEEPSEEK4 || (arch == LLM_ARCH_DFLASH && hparams.dsv4_hc_mult > 0)) {
cur = ggml_clamp(ctx0, cur, -INFINITY, limit);
cb(cur, "ffn_moe_gate_clamped", il);
cur = ggml_swiglu_split(ctx0, cur, up);
@@ -2962,6 +3031,75 @@ ggml_tensor * llm_graph_context::build_attn(
return cur;
}
ggml_tensor * llm_graph_context::build_attn(
llm_graph_input_attn_k_iswa * inp,
ggml_tensor * wo,
ggml_tensor * wo_b,
ggml_tensor * wo_s,
ggml_tensor * q_cur,
ggml_tensor * k_cur,
ggml_tensor * v_cur,
ggml_tensor * kq_b,
ggml_tensor * sinks,
ggml_tensor * v_mla,
float kq_scale,
int il) const {
const bool is_swa = hparams.is_swa(il);
GGML_UNUSED(v_cur);
auto * k_rot = is_swa ? inp->self_k_rot_swa : inp->self_k_rot;
if (k_rot) {
q_cur = llama_mul_mat_hadamard(ctx0, q_cur, k_rot);
if (k_cur) {
k_cur = llama_mul_mat_hadamard(ctx0, k_cur, k_rot);
}
}
// these nodes are added to the graph together so that they are not reordered
// by doing so, the number of splits in the graph is reduced
ggml_build_forward_expand(gf, q_cur);
if (k_cur) {
ggml_build_forward_expand(gf, k_cur);
}
const auto * mctx_iswa = inp->mctx;
const auto * mctx_cur = is_swa ? mctx_iswa->get_swa() : mctx_iswa->get_base();
// optionally store to KV cache
if (k_cur) {
const auto & k_idxs = is_swa ? inp->get_k_idxs_swa() : inp->get_k_idxs();
ggml_build_forward_expand(gf, mctx_cur->cpy_k(ctx0, k_cur, k_idxs, il));
}
const auto & kq_mask = is_swa ? inp->get_kq_mask_swa() : inp->get_kq_mask();
// MLA-style attention: the cached K is used as V
ggml_tensor * q = q_cur;
ggml_tensor * k = mctx_cur->get_k(ctx0, il);
ggml_tensor * v = k;
ggml_tensor * cur = build_attn_mha(q, k, v, kq_b, kq_mask, sinks, v_mla, kq_scale, il);
cb(cur, "kqv_out", il);
if (k_rot) {
cur = llama_mul_mat_hadamard(ctx0, cur, k_rot);
}
if (wo) {
cur = build_lora_mm(wo, cur, wo_s);
}
if (wo_b) {
cur = ggml_add(ctx0, cur, wo_b);
}
return cur;
}
llm_graph_input_attn_cross * llm_graph_context::build_attn_inp_cross() const {
auto inp = std::make_unique<llm_graph_input_attn_cross>(cross);
@@ -3084,6 +3222,34 @@ llm_graph_input_attn_kv_iswa * llm_graph_context::build_attn_inp_kv_iswa() const
return (llm_graph_input_attn_kv_iswa *) res->add_input(std::move(inp));
}
llm_graph_input_attn_k_iswa * llm_graph_context::build_attn_inp_k_iswa() const {
const auto * mctx_cur = static_cast<const llama_kv_cache_iswa_context *>(mctx);
auto inp = std::make_unique<llm_graph_input_attn_k_iswa>(hparams, cparams, mctx_cur);
{
inp->self_k_idxs = mctx_cur->get_base()->build_input_k_idxs(ctx0, ubatch);
inp->self_kq_mask = build_attn_inp_kq_mask(ctx0, mctx_cur->get_base(), ubatch, cparams);
inp->self_kq_mask_cnv = inp->self_kq_mask;
}
{
GGML_ASSERT(hparams.swa_type != LLAMA_SWA_TYPE_NONE && "Use llama_kv_cache for non-SWA");
inp->self_k_idxs_swa = mctx_cur->get_swa()->build_input_k_idxs(ctx0, ubatch);
inp->self_kq_mask_swa = build_attn_inp_kq_mask(ctx0, mctx_cur->get_swa(), ubatch, cparams);
inp->self_kq_mask_swa_cnv = inp->self_kq_mask_swa;
}
inp->self_k_rot = mctx_cur->get_base()->build_input_k_rot(ctx0);
inp->self_k_rot_swa = mctx_cur->get_swa()->build_input_k_rot(ctx0);
return (llm_graph_input_attn_k_iswa *) res->add_input(std::move(inp));
}
llm_graph_input_dsv4 * llm_graph_context::build_inp_dsv4() const {
const auto * mctx_cur = static_cast<const llama_kv_cache_dsv4_context *>(mctx);
const auto * raw_ctx = mctx_cur->get_raw();