Introduce Pipelined PA in 1.19 release #54
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Introduce Pipelined PA, that applies the concepts of FlashAttention into PagedAttention, so that we can calculate softmax in parallel to matmul_av. Cleanup code, and leave old attn implementation as a fallback option when index_reduce operator is not available (releases older than 1.19). --------- Co-authored-by: Michal Adamczyk <[email protected]>
…y possible layout (#46) * Fix adjustment tensor shape in PipelinedPA so that it matches with original shape Previous solution caused a bug in models that have specific layout of [num_blocks, 1, num_heads , ...]
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