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ggml : fix FA mask dim 2 and 3 (#14505)

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* ggml : fix FA mask dim 2 and 3

ggml-ci

* backends : unsupport batched FA in CUDA and Vulkan

ggml-ci

* vulkan : disable FA for mask->ne[2] != 1
This commit is contained in:
Georgi Gerganov
2025-07-03 10:46:57 +03:00
committed by GitHub
parent d4cdd9c1c3
commit 9067487c44
9 changed files with 26 additions and 15 deletions
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5
ggml/src/ggml.c
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@@ -3674,7 +3674,6 @@ static struct ggml_tensor * ggml_soft_max_impl(
if (mask) {
GGML_ASSERT(mask->type == GGML_TYPE_F16 || mask->type == GGML_TYPE_F32);
GGML_ASSERT(ggml_is_contiguous(mask));
GGML_ASSERT(ggml_is_3d(mask));
GGML_ASSERT(mask->ne[0] == a->ne[0]);
GGML_ASSERT(mask->ne[1] >= a->ne[1]);
GGML_ASSERT(a->ne[2]%mask->ne[2] == 0);
@@ -4704,12 +4703,12 @@ struct ggml_tensor * ggml_flash_attn_ext(
if (mask) {
GGML_ASSERT(ggml_is_contiguous(mask));
GGML_ASSERT(mask->ne[2] == q->ne[3]);
GGML_ASSERT(mask->ne[1] >= GGML_PAD(q->ne[1], GGML_KQ_MASK_PAD) &&
"the Flash-Attention kernel requires the mask to be padded to GGML_KQ_MASK_PAD and at least n_queries big");
//GGML_ASSERT(ggml_can_repeat_rows(mask, qk));
GGML_ASSERT(q->ne[3] % mask->ne[2] == 0);
GGML_ASSERT(q->ne[2] % mask->ne[2] == 0);
GGML_ASSERT(q->ne[3] % mask->ne[3] == 0);
}
if (max_bias > 0.0f) {