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[Bugfix] Machete garbage results for some models (large K dim) (#9212)

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Lucas Wilkinson 2024-10-10 02:16:17 -04:00 committed by GitHub
parent ce00231a8b
commit a64e7b9407
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GPG Key ID: B5690EEEBB952194
2 changed files with 16 additions and 12 deletions
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23
csrc/quantization/machete/machete_mainloop.cuh
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@ -591,24 +591,27 @@ struct MacheteCollectiveMma {
tma_load_b = make_tma_copy_B(
make_logical_tensor(ptr_B, make_shape(N, K, L), args.dB));
int32_t scale_k =
(ModeHasScales) ? (K + args.group_size - 1) / args.group_size : 0;
int32_t group_size = (ModeHasScales) ? args.group_size : 0;
if constexpr (ModeHasScales) {
tma_load_scale = make_tma_copy_scale(make_logical_tensor(
args.ptr_S, make_shape(M, args.group_size, L), args.dS));
tma_load_scale = make_tma_copy_scale(
make_logical_tensor(args.ptr_S, make_shape(M, scale_k, L), args.dS));
}
if constexpr (KernelConversionMode ==
ConversionMode::ConvertAndScaleWithZero) {
tma_load_zero = make_tma_copy_zero(make_logical_tensor(
args.ptr_Z, make_shape(M, args.group_size, L), args.dS));
tma_load_zero = make_tma_copy_zero(
make_logical_tensor(args.ptr_Z, make_shape(M, scale_k, L), args.dS));
}
if constexpr (KernelConversionMode == ConversionMode::DirectConvert) {
return {tma_load_a, tma_load_b, tma_load_scale, tma_load_zero, 0, 0};
} else if constexpr (ModeHasScales) {
auto scale_k = (K + args.group_size - 1) / args.group_size;
if constexpr (KernelConversionMode == ConversionMode::DirectConvert ||
KernelConversionMode == ConversionMode::ConvertAndScale ||
KernelConversionMode ==
ConversionMode::ConvertAndScaleWithZero) {
return {tma_load_a, tma_load_b, tma_load_scale,
tma_load_zero, scale_k, args.group_size};
tma_load_zero, scale_k, group_size};
} else {
static_assert(cutlass::detail::dependent_false<KernelSchedule>,
"Conversion mode not handled in to_underlying_arguments.");

5
tests/kernels/test_machete_gemm.py
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@ -24,13 +24,14 @@ MNK_SHAPES = [
(1, 128, 128),
(1, 512, 1024),
(1, 4096, 4096),
(1, 8192, 28672),
(13, 8192, 4096),
(26, 4096, 8192),
(1, 4096, 4096),
(64, 4096, 4096),
(64, 8192, 28672),
(257, 128, 4096),
(257, 4224, 4160),
(257, 4096, 4096),
(64, 4096, 4096),
(1024, 4096, 8192),
(1024, 8192, 4096),
]