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[BugFix/Build] Fix sparse kernels not getting built on hopper (#14572)

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Signed-off-by: Lucas Wilkinson <lwilkins@redhat.com>
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Lucas Wilkinson 2025-03-11 13:09:03 -04:00 committed by GitHub
parent 07964e2f30
commit 07b4b7a37f
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GPG Key ID: B5690EEEBB952194
2 changed files with 8 additions and 3 deletions
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3
CMakeLists.txt
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@ -422,7 +422,8 @@ if(VLLM_GPU_LANG STREQUAL "CUDA")
# 2:4 Sparse Kernels
# The 2:4 sparse kernels cutlass_scaled_sparse_mm and cutlass_compressor
# require CUDA 12.2 or later (and only work on Hopper and Blackwell).
# require CUDA 12.2 or later (and only work on Hopper).
cuda_archs_loose_intersection(SCALED_MM_ARCHS "9.0a;" "${CUDA_ARCHS}")
if(${CMAKE_CUDA_COMPILER_VERSION} VERSION_GREATER 12.2 AND SCALED_MM_ARCHS)
set(SRCS "csrc/sparse/cutlass/sparse_scaled_mm_c3x.cu")
set_gencode_flags_for_srcs(

8
csrc/sparse/cutlass/sparse_scaled_mm_entry.cu
View File

@ -58,7 +58,9 @@ void cutlass_scaled_sparse_mm(torch::Tensor& c, torch::Tensor const& a,
// Guard against compilation issues for sm90 kernels
#if defined ENABLE_SPARSE_SCALED_MM_C3X && ENABLE_SPARSE_SCALED_MM_C3X
if (version_num >= 90) {
// We build for 9.0a which is not forward compatible, so restrict this to
// Hopper only
if (version_num == 90) {
cutlass_scaled_sparse_mm_sm90(c, a, bt_nzs, bt_meta, a_scales, b_scales,
bias);
return;
@ -82,7 +84,9 @@ std::vector<torch::Tensor> cutlass_sparse_compress(torch::Tensor const& a) {
// Guard against compilation issues for sm90 kernels
#if defined ENABLE_SPARSE_SCALED_MM_C3X && ENABLE_SPARSE_SCALED_MM_C3X
if (version_num >= 90) {
// We build for 9.0a which is not forward compatible, so restrict this to
// Hopper only
if (version_num == 90) {
std::vector<torch::Tensor> result_tensors;
auto [a_meta, a_nzs] = cutlass_sparse_compress_sm90(a);