Files
composable_kernel/include/ck_tile/ops/fmha
Jeff Huang e3556fed04 Optimize batch prefill kernel performance for VECTORIZED_LAYOUT KV cache (#3657)
- Add multi-dimensional page index support (YsGatherDims) in tile_scatter_gather
- Add is_gather_dim() and get_gather_index() for multi-dim page lookup
- Override MakeVDramTileDistribution() for VECTORIZED_LAYOUT to match
  GEMM's BWarpDstrEncoding (K decomposition: {K2, K0, K1})
- Add GetGemmKDecomposition() to retrieve kABKLane and kKPerThread
- Add static_assert for RowMajor VLayout requirement in batch prefill

Co-authored-by: Po Yen Chen <PoYen.Chen@amd.com>
2026-01-29 07:18:41 +08:00
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