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metal : add support for non-padded FA KV (#16148)

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* metal : pad K, V and Mask when needed

* cont : simplify

* cuda : add TODO about KV padding requirement

* metal : add comments

* metal : remove mask padding requirement
This commit is contained in:
Georgi Gerganov
2025-10-07 08:23:30 +03:00
committed by GitHub
parent 1d6092fc72
commit 0a319bb75e
9 changed files with 460 additions and 72 deletions
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ggml/src/ggml-metal/ggml-metal-device.h
+8
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@@ -135,6 +135,12 @@ ggml_metal_pipeline_t ggml_metal_library_get_pipeline_pad_reflect_1d (ggml_me
ggml_metal_pipeline_t ggml_metal_library_get_pipeline_arange (ggml_metal_library_t lib, const struct ggml_tensor * op);
ggml_metal_pipeline_t ggml_metal_library_get_pipeline_timestep_embedding(ggml_metal_library_t lib, const struct ggml_tensor * op);
ggml_metal_pipeline_t ggml_metal_library_get_pipeline_flash_attn_ext_pad(
ggml_metal_library_t lib,
const struct ggml_tensor * op,
bool has_mask,
int32_t ncpsg);
ggml_metal_pipeline_t ggml_metal_library_get_pipeline_flash_attn_ext(
ggml_metal_library_t lib,
const struct ggml_tensor * op,
@@ -142,6 +148,7 @@ ggml_metal_pipeline_t ggml_metal_library_get_pipeline_flash_attn_ext(
bool has_sinks,
bool has_bias,
bool has_scap,
bool has_kvpad,
int32_t nsg);
ggml_metal_pipeline_t ggml_metal_library_get_pipeline_flash_attn_ext_vec(
@@ -151,6 +158,7 @@ ggml_metal_pipeline_t ggml_metal_library_get_pipeline_flash_attn_ext_vec(
bool has_sinks,
bool has_bias,
bool has_scap,
bool has_kvpad,
int32_t nsg,
int32_t nwg);