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[CK_TILE] Move GEMM pipeline tail handling logic to pipelines (#2222)

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* Add TailHandler for V3, V4 and Mem pipelines

* Adapt examples and tests to use TailHandler

* move tail-handling logic to pipeline in persistent grouped gemm

* Fix Mem pipeline dispatching, add CompV4 dispatching

* Use a macro for handling the many tails of Mem pipeline

* Fix formatting again

* Use const-ref RunFunction, remove unnecessary try_run
This commit is contained in:
Sami Remes
2025-06-04 11:50:21 +03:00
committed by GitHub
parent ffb52783d0
commit 7ea1508b59
10 changed files with 234 additions and 553 deletions
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103
example/ck_tile/03_gemm/universal_gemm.cpp
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@@ -13,19 +13,6 @@
#include "gemm_utils.hpp"
#include "run_gemm_example.inc"
template <typename Pipeline, ck_tile::TailNumber TN>
void try_run(ck_tile::TailNumber tn)
{
if constexpr(Pipeline::PrefetchStages > static_cast<int>(TN))
{
if(tn == TN)
{
RunSplitk(ck_tile::bool_constant<true>{},
ck_tile::integral_constant<ck_tile::TailNumber, TN>{});
}
}
}
template <typename ADataType,
typename BDataType,
typename AccDataType,
@@ -202,95 +189,7 @@ float gemm_calc(const ck_tile::GemmHostArgs& args, const ck_tile::stream_config&
}
};
if(has_hot_loop)
{
#if(CK_TILE_PIPELINE_DEFAULT == CK_TILE_PIPELINE_COMPUTE_V3)
if(tail_num == ck_tile::TailNumber::Full)
{
RunSplitk(ck_tile::bool_constant<true>{},
ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::Full>{});
}
else if(tail_num == ck_tile::TailNumber::Odd)
{
RunSplitk(ck_tile::bool_constant<true>{},
ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::Odd>{});
}
else if(tail_num == ck_tile::TailNumber::Even)
{
RunSplitk(ck_tile::bool_constant<true>{},
ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::Even>{});
}
else
{
std::ostringstream err;
err << "For compute pipeline tail number should always be Full, but have \"" << tail_num
<< "\" which is not supported! PrefetchStages: " << BaseGemmPipeline::PrefetchStages
<< "\n File: " << __FILE__ << ":" << __LINE__ << ", in function: " << __func__;
throw std::runtime_error(err.str());
}
#elif(CK_TILE_PIPELINE_DEFAULT == CK_TILE_PIPELINE_MEMORY)
if(tail_num == ck_tile::TailNumber::One)
{
RunSplitk(ck_tile::bool_constant<true>{},
ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::One>{});
}
else if(tail_num == ck_tile::TailNumber::Full)
{
RunSplitk(ck_tile::bool_constant<true>{},
ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::Full>{});
}
auto check_tail = [&](auto... TNs) {
(try_run<BaseGemmPipeline, decltype(TNs)::value>(tail_num), ...);
};
check_tail(ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::Two>{},
ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::Three>{},
ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::Four>{},
ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::Five>{},
ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::Six>{},
ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::Seven>{});
#elif(CK_TILE_PIPELINE_DEFAULT == CK_TILE_PIPELINE_COMPUTE_V4)
if(tail_num == ck_tile::TailNumber::Three)
{
RunSplitk(
ck_tile::bool_constant<true>{},
ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::Three>{});
}
else
{
RunSplitk(ck_tile::bool_constant<true>{},
ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::Two>{});
}
#endif
}
else
{
if(tail_num == ck_tile::TailNumber::Full)
{
RunSplitk(ck_tile::bool_constant<false>{},
ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::Full>{});
}
else if(tail_num == ck_tile::TailNumber::Odd)
{
RunSplitk(ck_tile::bool_constant<false>{},
ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::Odd>{});
}
else if(tail_num == ck_tile::TailNumber::Even)
{
RunSplitk(ck_tile::bool_constant<false>{},
ck_tile::integral_constant<ck_tile::TailNumber, ck_tile::TailNumber::Even>{});
}
else
{
std::ostringstream err;
err << "Num K loop must be larger than number of prefetech stages."
<< "\n PrefetchStages: " << BaseGemmPipeline::PrefetchStages
<< "\n File: " << __FILE__ << ":" << __LINE__ << ", in function: " << __func__;
throw std::runtime_error(err.str());
}
}
BaseGemmPipeline::TailHandler(RunSplitk, has_hot_loop, tail_num);
return ave_time;
}