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FlashMLA-3 for DeepSeek models on CUDA #386

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Merged
merged 7 commits into from
May 7, 2025
Merged

FlashMLA-3 for DeepSeek models on CUDA #386

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ed59907
CUDA WIP: support for FlashMLA-3
Kawrakow May 6, 2025
0fee6c5
Much better
Kawrakow May 6, 2025
4edfc67
Sadly, the previous commit was wrong
Kawrakow May 6, 2025
c36fa20
Finalizing
Kawrakow May 6, 2025
59a3e36
Also add these
Kawrakow May 6, 2025
53e7e77
Minor
Kawrakow May 6, 2025
1982beb
Minor tweak
Kawrakow May 7, 2025
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5 changes: 5 additions & 0 deletions ggml/src/ggml-cuda.cu
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Original file line number Diff line number Diff line change
Expand Up @@ -3587,6 +3587,11 @@ GGML_CALL static bool ggml_backend_cuda_supports_op(ggml_backend_t backend, cons
return (op->src[1]->type == GGML_TYPE_F16 && op->src[2]->type == GGML_TYPE_F16) ||
(op->src[1]->type == GGML_TYPE_Q8_0 && op->src[2]->type == GGML_TYPE_Q8_0);
}
if (op->src[1]->ne[0] == 576 && op->src[2]->ne[0] == 512) {
const int cc = ggml_cuda_info().devices[cuda_ctx->device].cc;
int gqa = op->src[0]->ne[2]/op->src[1]->ne[2];
return (new_mma_available(cc) && cc >= CC_AMPERE && op->src[3] && gqa%16 == 0);
}
if (op->src[1]->ne[0] > 256) {
return false;
}
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