Input/output permutation for fused attention (#460)

* reopen masking att instance due to CI is upgraded

* re-enable instances previously failed on 9110

* enable ksize-kpadding pair validity test

* add non-masked attention+permute test; expose masking boolean to attention kernel handles

* disable bench

* fix test

* move files

* bulk rename batched_gemm_masking_scale_softmax_gemm_permute to batched_gemm_softmax_gemm_permute

* format

* amend rename

* disable bench in test

* add mask/no-mask test for non-permute attention kernels

* disable broken kernel instance

* example working

add non-permuted problem statement

evaluating whether overhead comes from permutation or the extra kernel arg

* interface for bias addition without implementing it

* test and profiler running

* tidy

* mask type determined by enum class

* unify example code

* move masking specialization to its own header

* align formats

* extract helper functions

* experiment merging dims for attn w/ permute; shows perf parity with attn wo/ permute

* add tensor specialization to template args

since tensor spec packed shows perf parity when permutation isn't needed

remove redundant template args

comment on 'packed' tensor specialization

* grouped attention with input/output permute example

* format

* clean up

* refactor acc0 tile visitor

Co-authored-by: shaojiewang <wsjmessi@163.com>
Co-authored-by: Chao Liu <chao.liu2@amd.com>
This commit is contained in:
Anthony Chang
2022-10-28 04:58:20 +08:00
committed by GitHub
parent cd51732690
commit de37550f72
42 changed files with 2654 additions and 2196 deletions

View File

@@ -593,7 +593,8 @@ struct XdlopsGemm
static constexpr auto I4 = Number<4>{};
static constexpr auto I5 = Number<5>{};
using CIndex = MultiIndex<2>;
using CIndex = MultiIndex<2>;
using CIndex4D = MultiIndex<4>;
__device__ static constexpr index_t GetNumBlks() { return mfma_instr.num_output_blks; }
@@ -822,6 +823,16 @@ struct XdlopsGemm
return TransposeC ? CIndex{n_offset, m_offset} : CIndex{m_offset, n_offset};
}
__device__ static CIndex4D GetBeginOfThreadBlk4D(index_t /* xdlops_i */, index_t /* blk_i */)
{
const auto blk_idx = GetBlkIdx();
const auto blk_id = blk_idx[I0];
const auto blk_td = blk_idx[I1];
return TransposeC ? CIndex4D{blk_td, I0, blk_id, I0} : CIndex4D{I0, blk_id, I0, blk_td};
}
static constexpr auto mfma = MfmaSelector<base_type, MPerXdlops, NPerXdlops>{};
static constexpr auto mfma_instr = mfma.selected_mfma;