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CUDA: use mma PTX instructions for FlashAttention (#11583) * CUDA: use mma PTX instructions for FlashAttention * __shfl_sync workaround for movmatrix * add __shfl_sync to HIP Co-authored-by: Diego Devesa <[email protected]>
CUDA: use mma PTX instructions for FlashAttention (#11583) * CUDA: use mma PTX instructions for FlashAttention * __shfl_sync workaround for movmatrix * add __shfl_sync to HIP Co-authored-by: Diego Devesa <[email protected]>