[TIR] Add CUDA int4 tensor core intrinsics #14598
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Hzfengsy
approved these changes
Apr 12, 2023
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@Hzfengsy , int4 Tensor Cores is still supported in RTX 40 series, per Ada whitepaper. |
yzh119
reviewed
Apr 12, 2023
| @@ -817,6 +916,12 @@ def wmma_sync_impl(a: T.handle, b: T.handle, c: T.handle) -> None: | |||
| *get_wmma_sync_intrin(16, 16, 16, "int8", "int32", True), | |||
| ) | |||
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| WMMA_SYNC_8x8x32_s4s4s32_TRANS_INTRIN = "wmma_sync_8x8x32_s4s4s32_trans" | |||
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"wmma_sync_8x8x32_s4s4s32" is missing.
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sub-byte tensor core only allows A in row major and B in col major
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Oh that's interesting! Maybe we can leave a note somewhere.
yzh119
approved these changes
Apr 12, 2023
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This PR added int4 tensor intrinsic for CUDA tensor core.
cc @junrushao @tqchen @masahi