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llama : add high-throughput mode (#14363)

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* kv-cache : prepare K/V buffers for separation

ggml-ci

* batched-bench : fix oob write

ggml-ci

* llama : add "virtual sequences"

ggml-ci

* llama : use "stream" vs "virtual sequence"

ggml-ci

* graph : fix stream splitting when KV cache is not used

ggml-ci

* kv-cache : add multi-stream save/load support

ggml-ci

* llama : add "--attn-streams" flag

ggml-ci

* kv-cache : fix handling when find_slot fails

ggml-ci

* kv-cache : restore find_slot impl

ggml-ci

* kv-cache : add comments

* kv-cache : add bounds checks for sequence id

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* cont : add n_seq_max to batch allocr

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* kv-cache : perform stream copies lazily after llama_synchronize

ggml-ci

* kv-cache : avoid throwing exceptions across the C boundary

ggml-ci

* CUDA: 4D FlashAttention support (#14628)

* CUDA: 4D FlashAttention support

* CUDA: fix WMMA FA kernel

* llama : rename attn_streams -> kv_unified

ggml-ci

* common : rename kv_split -> kv_unified

ggml-ci

---------

Co-authored-by: Johannes Gäßler <johannesg@5d6.de>
This commit is contained in:
Georgi Gerganov
2025-07-16 16:35:42 +03:00
committed by GitHub
parent ab14019821
commit 225e7a1438
30 changed files with 1080 additions and 460 deletions
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40
src/llama-hparams.cpp
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@@ -65,6 +65,46 @@ uint32_t llama_hparams::n_embd_v_gqa(uint32_t il) const {
return n_embd_head_v * n_head_kv;
}
bool llama_hparams::is_n_embd_k_gqa_variable() const {
const uint32_t val = n_embd_k_gqa();
for (uint32_t il = 0; il < n_layer; ++il) {
if (val != n_embd_k_gqa(il)) {
return true;
}
}
return false;
}
bool llama_hparams::is_n_embd_v_gqa_variable() const {
const uint32_t val = n_embd_v_gqa();
for (uint32_t il = 0; il < n_layer; ++il) {
if (val != n_embd_v_gqa(il)) {
return true;
}
}
return false;
}
uint32_t llama_hparams::n_embd_k_gqa_max() const {
uint32_t val = n_embd_k_gqa();
for (uint32_t il = 0; il < n_layer; ++il) {
val = std::max(val, n_embd_k_gqa(il));
}
return val;
}
uint32_t llama_hparams::n_embd_v_gqa_max() const {
uint32_t val = n_embd_v_gqa();
for (uint32_t il = 0; il < n_layer; ++il) {
val = std::max(val, n_embd_v_gqa(il));
}
return val;
}
uint32_t llama_hparams::n_embd_r() const {
if (wkv_head_size != 0) {
// for RWKV models