Support column major MMA Atoms for Xe2. #634
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amitchawla1
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Nov 24, 2025
| // 0t_mma_atom.md#TiledMMAs for more info. Sub-groups are arranged row-major (stride 4,1,0) for | ||
| // performance reasons. | ||
| using TiledMma = typename TiledMMAHelper<MMA_Atom<XE_DPAS_TT<8, float, cute::bfloat16_t>>, Layout<TileShape>, Layout<Shape<_8, _4, _1>, Stride<_4, _1, _0>>>::TiledMMA; | ||
| using TiledMma = typename TiledMMAHelper<MMA_Atom<XE_DPAS_NN<8, float, cute::bfloat16_t>>, Layout<TileShape>, Layout<Shape<_8, _4, _1>, Stride<_1, _4, _0>>>::TiledMMA; |
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Shouldn't stride be 8 instead of 4 ?
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Yes that's what I thought col major should be for subgroup layout... but Peter suggested this stride
anamikac-intel
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