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Adjust in GetNumPrefetchV()

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This commit is contained in:
Qianfeng Zhang
2025-12-15 15:02:15 +00:00
parent 370d386427
commit d281c519f3
1 changed files with 6 additions and 4 deletions
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10
include/ck_tile/ops/fmha/pipeline/block_fmha_pipeline_qr_ks_vs_whole_k_prefetch_default_policy.hpp
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@@ -26,12 +26,14 @@ struct BlockFmhaPipelineQRKSVSWholeKPrefetchDefaultPolicy
template <typename Problem>
CK_TILE_HOST_DEVICE static constexpr ck_tile::index_t GetNumPrefetchV()
{
constexpr index_t n0_loops = Problem::BlockFmhaShape::kN0 / Problem::BlockFmhaShape::kN0Sub;
constexpr index_t k1_loops = Problem::BlockFmhaShape::kN0 / Problem::BlockFmhaShape::kK1;
// usually kN0 is 128, kK1 is 32/16
static_assert(k1_loops >= 2, "Check failed!");
return 2;
if constexpr(n0_loops >= 4 && k1_loops >= 6)
return 3;
if constexpr(k1_loops >= 4)
return 2;
return 1;
};
template <typename Problem>