vllm/csrc/quantization/cutlass_w8a8/c3x/scaled_mm_sm90_fp8.cu
lyrisz c6c9122d50
[Kernel] SM90 CUTLASS FP8 GEMM: add support for swap AB + kernel tuning (#20396)
Signed-off-by: Faqin Zhong <faqin.zhong@gmail.com>
Co-authored-by: Duncan Moss <djm.moss@gmail.com>
2025-07-28 23:13:58 +00:00

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#include "scaled_mm_kernels.hpp"
#include "scaled_mm_sm90_fp8_dispatch.cuh"
namespace vllm {
void cutlass_scaled_mm_sm90_fp8(torch::Tensor& out, torch::Tensor const& a,
torch::Tensor const& b,
torch::Tensor const& a_scales,
torch::Tensor const& b_scales,
std::optional<torch::Tensor> const& bias) {
TORCH_CHECK(a_scales.is_contiguous() && b_scales.is_contiguous());
if (bias) {
TORCH_CHECK(bias->dtype() == out.dtype(),
"currently bias dtype must match output dtype ", out.dtype());
return cutlass_scaled_mm_sm90_fp8_epilogue<true>(out, a, b, a_scales,
b_scales, *bias);
} else {
return cutlass_scaled_mm_sm90_fp8_epilogue<false>(out, a, b, a_scales,
b_scales);
}
}
} // namespace vllm