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Ck tile gemm example (#1488)

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* Checkpoint: Finished with the tile example & kernel verification, working on the different matrix layout

* Finished the Matrix Layout feature set up. Note: Need to modify the inner block to solve the shuffle problem in the future.

* Fix: Clang Format, API fixed from fmha

* fix with better naming convention

* revert back the pipeline code of fmha

* Fixed: Addressed the comments and merge the GEMM shape of GEMM Operator and FMHA Operator to one.

* clang format with the reference_gemm file

* convert the clang format with the remod.py

* Changed the format and variable name of the kernel gemm_shape and partitioner

---------

Co-authored-by: thomasning <thomasning@banff-cyxtera-s70-4.ctr.dcgpu>
This commit is contained in:
Thomas Ning
2024-09-07 01:23:32 -07:00
committed by GitHub
parent 8378855361
commit caacd38830
18 changed files with 758 additions and 92 deletions
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176
include/ck_tile/ops/gemm/kernel/gemm_kernel.hpp Normal file
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// SPDX-License-Identifier: MIT
// Copyright (c) 2018-2024, Advanced Micro Devices, Inc. All rights reserved.
#pragma once
#include "ck_tile/core.hpp"
#include "ck_tile/ops/common.hpp"
#include <iostream>
#include <string>
namespace ck_tile {
template <typename TilePartitioner_,
typename GemmPipeline_,
typename EpiloguePipeline_,
typename LayoutA_,
typename LayoutB_,
typename LayoutC_>
struct GemmKernel
{
using TilePartitioner = remove_cvref_t<TilePartitioner_>;
using GemmPipeline = remove_cvref_t<GemmPipeline_>;
using EpiloguePipeline = remove_cvref_t<EpiloguePipeline_>;
using LayoutA = remove_cvref_t<LayoutA_>;
using LayoutB = remove_cvref_t<LayoutB_>;
using LayoutC = remove_cvref_t<LayoutC_>;
static constexpr index_t KernelBlockSize = GemmPipeline::KernelBlockSize;
using ADataType = remove_cvref_t<typename GemmPipeline::ADataType>;
using BDataType = remove_cvref_t<typename GemmPipeline::BDataType>;
using CAccDataType = remove_cvref_t<typename GemmPipeline::CDataType>;
using CODataType = remove_cvref_t<typename EpiloguePipeline::ODataType>;
__host__ static constexpr auto GridSize(index_t M_size, index_t N_size, index_t Batch_size)
{
return TilePartitioner::GridSize(M_size, N_size, Batch_size);
}
__host__ static constexpr auto BlockSize() { return dim3(KernelBlockSize); }
struct GemmCommonKargs
{
const void* a_ptr;
const void* b_ptr;
void* c_ptr;
float epsilon;
ck_tile::index_t M;
ck_tile::index_t N;
ck_tile::index_t K;
ck_tile::index_t stride_A;
ck_tile::index_t stride_B;
ck_tile::index_t stride_C;
};
CK_TILE_HOST static constexpr GemmCommonKargs MakeKargs(const void* a_ptr,
const void* b_ptr,
void* c_ptr,
float epsilon,
ck_tile::index_t M,
ck_tile::index_t N,
ck_tile::index_t K,
ck_tile::index_t stride_A,
ck_tile::index_t stride_B,
ck_tile::index_t stride_C)
{
return GemmCommonKargs{a_ptr, b_ptr, c_ptr, epsilon, M, N, K, stride_A, stride_B, stride_C};
}
CK_TILE_HOST_DEVICE static constexpr ck_tile::index_t GetSmemSize()
{
return ck_tile::max(GemmPipeline::GetSmemSize(), EpiloguePipeline::GetSmemSize());
}
CK_TILE_DEVICE void operator()(GemmCommonKargs kargs) const
{
const index_t i_m = TilePartitioner::iM;
const index_t i_n = TilePartitioner::iN;
// options
const ADataType* a_start = static_cast<const ADataType*>(kargs.a_ptr);
const BDataType* b_start = static_cast<const BDataType*>(kargs.b_ptr);
// Convert pointers to tensor views
auto a_tensor_view = [&]() {
if constexpr(std::is_same_v<LayoutA, tensor_layout::gemm::ColumnMajor>)
{
return make_naive_tensor_view<address_space_enum::global>(
a_start,
make_tuple(kargs.M, kargs.K),
make_tuple(1, kargs.stride_A),
number<GemmPipeline::AlignmentA>{},
number<1>{});
}
else
{
return make_naive_tensor_view<address_space_enum::global>(
a_start,
make_tuple(kargs.M, kargs.K),
make_tuple(kargs.stride_A, 1),
number<GemmPipeline::AlignmentA>{},
number<1>{});
}
}();
auto b_tensor_view = [&]() {
if constexpr(std::is_same_v<LayoutB, tensor_layout::gemm::ColumnMajor>)
{
return make_naive_tensor_view<address_space_enum::global>(
b_start,
make_tuple(kargs.N, kargs.K),
make_tuple(1, kargs.stride_B),
number<GemmPipeline::AlignmentB>{},
number<1>{});
}
else
{ // Default NK layout
return make_naive_tensor_view<address_space_enum::global>(
b_start,
make_tuple(kargs.N, kargs.K),
make_tuple(kargs.stride_B, 1),
number<GemmPipeline::AlignmentB>{},
number<1>{});
}
}();
auto ABlockWindow = make_tile_window(
a_tensor_view,
make_tuple(number<TilePartitioner::kM>{}, number<TilePartitioner::kK>{}),
{i_m, 0});
auto BBlockWindow = make_tile_window(
b_tensor_view,
make_tuple(number<TilePartitioner::kN>{}, number<TilePartitioner::kK>{}),
{i_n, 0});
// allocate LDS
__shared__ char smem_ptr[GetSmemSize()];
const index_t num_loop = (kargs.K + TilePartitioner::kK - 1) / TilePartitioner::kK;
auto acc = GemmPipeline{}(ABlockWindow, BBlockWindow, num_loop, smem_ptr);
CODataType* c_start = static_cast<CODataType*>(kargs.c_ptr);
auto c_tensor_view = [&]() {
if constexpr(std::is_same_v<LayoutC, tensor_layout::gemm::ColumnMajor>)
{
return make_naive_tensor_view<address_space_enum::global>(
c_start,
make_tuple(kargs.M, kargs.N),
make_tuple(1, kargs.stride_C),
number<GemmPipeline::AlignmentC>{},
number<1>{});
}
else
{
return make_naive_tensor_view<address_space_enum::global>(
c_start,
make_tuple(kargs.M, kargs.N),
make_tuple(kargs.stride_C, 1),
number<GemmPipeline::AlignmentC>{},
number<1>{});
}
}();
auto CBlockWindow = make_tile_window(
c_tensor_view,
make_tuple(number<TilePartitioner::kM>{}, number<TilePartitioner::kN>{}),
{i_m, i_n});
// epilogue.
EpiloguePipeline{}(CBlockWindow, acc);
}
};
} // namespace ck_tile