Add Grouped Conv Backward Weight on Navi21 for ResNet50. (#505)

* Add DeviceOp and examples

* Format DeviceOp template arguments

* Remove bf16 example

* Format

* Format

* Update MakeABCGridDescriptor_A_K0_M_K1_B_K0_N_K1_C_M_N

* Refactor argument preparation

* Update conv_bwd_weight_dl to grouped_conv_bwd_weight_dl

* Rename device op file

* Update include directive in the example file

* Update descriptor preparation for grouped op

* Update the argument

* Update batch handling

* Add gridwise gemm supporting batched input

* Update blockwise indexing, working version

* Update copyright year

* Update check if argument is supported

* Refactor and make consistent with xdl examples

* Update check if argument is supported

* Add changelog entry

* Added comments on Dl op split_k>1 support

---------

Co-authored-by: Rosty Geyyer <rosty.geyyer@amd.com>
Co-authored-by: zjing14 <zhangjing14@gmail.com>
This commit is contained in:
Rostyslav Geyyer
2023-02-22 11:59:53 -06:00
committed by GitHub
parent 830d37a7d5
commit 246ceee49e
9 changed files with 1923 additions and 45 deletions

View File

@@ -1,5 +1,5 @@
// SPDX-License-Identifier: MIT
// Copyright (c) 2018-2022, Advanced Micro Devices, Inc. All rights reserved.
// Copyright (c) 2018-2023, Advanced Micro Devices, Inc. All rights reserved.
#pragma once
@@ -574,4 +574,546 @@ struct GridwiseGemmDl_km_kn_mn_v1r3
}
};
template <index_t BlockSize,
typename FloatAB,
typename FloatAcc,
typename FloatC,
InMemoryDataOperationEnum CGlobalMemoryDataOperation,
typename AGridDesc_B_K0_M_K1,
typename BGridDesc_B_K0_N_K1,
typename CGridDesc_M_N,
index_t MPerBlock,
index_t NPerBlock,
index_t K0PerBlock,
index_t K1Value,
index_t M1PerThreadM111,
index_t N1PerThreadN111,
index_t KPerThread,
typename M11N11ThreadClusterM110Xs,
typename M11N11ThreadClusterN110Xs,
typename ABlockTransferThreadSliceLengths_K0_M0_M1_K1,
typename ABlockTransferThreadClusterLengths_K0_M0_M1_K1,
typename ABlockTransferThreadClusterArrangeOrder,
typename ABlockTransferSrcAccessOrder,
typename ABlockTransferSrcVectorTensorLengths_K0_M0_M1_K1,
typename ABlockTransferSrcVectorTensorContiguousDimOrder,
typename ABlockTransferDstVectorTensorLengths_K0_M0_M1_K1,
typename BBlockTransferThreadSliceLengths_K0_N0_N1_K1,
typename BBlockTransferThreadClusterLengths_K0_N0_N1_K1,
typename BBlockTransferThreadClusterArrangeOrder,
typename BBlockTransferSrcAccessOrder,
typename BBlockTransferSrcVectorTensorLengths_K0_N0_N1_K1,
typename BBlockTransferSrcVectorTensorContiguousDimOrder,
typename BBlockTransferDstVectorTensorLengths_K0_N0_N1_K1,
typename CThreadTransferSrcDstAccessOrder,
index_t CThreadTransferSrcDstVectorDim,
index_t CThreadTransferDstScalarPerVector>
struct GridwiseGemmDl_bkm_bkn_mn_v1r3
{
static constexpr auto I0 = Number<0>{};
static constexpr auto I1 = Number<1>{};
static constexpr auto I2 = Number<2>{};
static constexpr auto I3 = Number<3>{};
// K1 should be Number<...>
static constexpr auto K1 = Number<K1Value>{};
__host__ __device__ static constexpr index_t GetSharedMemoryNumberOfByte()
{
// TODO: change this. I think it needs multi-dimensional alignment
constexpr auto max_lds_align = K1;
// TODO: check alignment
// A matrix in LDS memory, dst of blockwise copy
constexpr auto a_block_desc_b_k0_m_k1 = make_naive_tensor_descriptor_aligned(
make_tuple(Number<1>{}, Number<K0PerBlock>{}, Number<MPerBlock>{}, K1), max_lds_align);
// TODO: check alignment
// B matrix in LDS memory, dst of blockwise copy
constexpr auto b_block_desc_b_k0_n_k1 = make_naive_tensor_descriptor_aligned(
make_tuple(Number<1>{}, Number<K0PerBlock>{}, Number<NPerBlock>{}, K1), max_lds_align);
// TODO: check alignment
// LDS allocation for A and B: be careful of alignment
constexpr auto a_block_aligned_space_size = math::integer_least_multiple(
a_block_desc_b_k0_m_k1.GetElementSpaceSize(), max_lds_align);
constexpr auto b_block_aligned_space_size = math::integer_least_multiple(
b_block_desc_b_k0_n_k1.GetElementSpaceSize(), max_lds_align);
return 2 * (a_block_aligned_space_size + b_block_aligned_space_size) * sizeof(FloatAB);
}
__host__ __device__ static constexpr bool
CheckValidity(const AGridDesc_B_K0_M_K1& a_grid_desc_b_k0_m_k1,
const BGridDesc_B_K0_N_K1& b_grid_desc_b_k0_n_k1,
const CGridDesc_M_N& c_grid_desc_m_n)
{
const auto M = a_grid_desc_b_k0_m_k1.GetLength(I2);
const auto N = b_grid_desc_b_k0_n_k1.GetLength(I2);
const auto K0 = a_grid_desc_b_k0_m_k1.GetLength(I1);
const auto KBatch = a_grid_desc_b_k0_m_k1.GetLength(I0);
// TODO: also check validity of all components (blockwise-copy, threadwise-copy, etc)
return (M == c_grid_desc_m_n.GetLength(I0) && N == c_grid_desc_m_n.GetLength(I1) &&
K0 == b_grid_desc_b_k0_n_k1.GetLength(I1) &&
K1 == a_grid_desc_b_k0_m_k1.GetLength(I3) &&
K1 == b_grid_desc_b_k0_n_k1.GetLength(I3)) &&
KBatch == b_grid_desc_b_k0_n_k1.GetLength(I0) &&
(M % MPerBlock == 0 && N % NPerBlock == 0 && K0 % K0PerBlock == 0);
}
__host__ __device__ static constexpr index_t CalculateGridSize(index_t M, index_t N)
{
const index_t grid_size = (M / MPerBlock) * (N / NPerBlock);
return grid_size;
}
__host__ __device__ static constexpr bool CalculateHasMainKBlockLoop(index_t K0)
{
const bool has_main_k_block_loop = (K0 + K0PerBlock) / (2 * K0PerBlock) > 1;
return has_main_k_block_loop;
}
__host__ __device__ static constexpr bool CalculateHasDoubleTailKBlockLoop(index_t K0)
{
const bool has_double_tail_k_block_loop = (K0 / K0PerBlock) % 2 == 0;
return has_double_tail_k_block_loop;
}
__host__ __device__ static constexpr auto
MakeAGridDescriptor_B_K0_M0_M1_K1(const AGridDesc_B_K0_M_K1& a_grid_desc_b_k0_m_k1)
{
const auto KBatch = a_grid_desc_b_k0_m_k1.GetLength(I0);
const auto K0 = a_grid_desc_b_k0_m_k1.GetLength(I1);
const auto M = a_grid_desc_b_k0_m_k1.GetLength(I2);
const auto M1 = Number<MPerBlock>{};
const auto M0 = M / M1;
const auto a_grid_desc_b_k0_m0_m1_k1 = transform_tensor_descriptor(
a_grid_desc_b_k0_m_k1,
make_tuple(make_pass_through_transform(KBatch),
make_pass_through_transform(K0),
make_unmerge_transform(make_tuple(M0, M1)),
make_pass_through_transform(K1)),
make_tuple(Sequence<0>{}, Sequence<1>{}, Sequence<2>{}, Sequence<3>{}),
make_tuple(Sequence<0>{}, Sequence<1>{}, Sequence<2, 3>{}, Sequence<4>{}));
return a_grid_desc_b_k0_m0_m1_k1;
}
__host__ __device__ static constexpr auto
MakeBGridDescriptor_B_K0_N0_N1_K1(const BGridDesc_B_K0_N_K1& b_grid_desc_b_k0_n_k1)
{
const auto KBatch = b_grid_desc_b_k0_n_k1.GetLength(I0);
const auto K0 = b_grid_desc_b_k0_n_k1.GetLength(I1);
const auto N = b_grid_desc_b_k0_n_k1.GetLength(I2);
const auto N1 = Number<NPerBlock>{};
const auto N0 = N / N1;
const auto b_grid_desc_b_k0_n0_n1_k1 = transform_tensor_descriptor(
b_grid_desc_b_k0_n_k1,
make_tuple(make_pass_through_transform(KBatch),
make_pass_through_transform(K0),
make_unmerge_transform(make_tuple(N0, N1)),
make_pass_through_transform(K1)),
make_tuple(Sequence<0>{}, Sequence<1>{}, Sequence<2>{}, Sequence<3>{}),
make_tuple(Sequence<0>{}, Sequence<1>{}, Sequence<2, 3>{}, Sequence<4>{}));
return b_grid_desc_b_k0_n0_n1_k1;
}
__host__ __device__ static constexpr auto
MakeCGridDescriptor_M0_M10_M11_N0_N10_N11(const CGridDesc_M_N& c_grid_desc_m_n)
{
const auto M = c_grid_desc_m_n.GetLength(I0);
const auto N = c_grid_desc_m_n.GetLength(I1);
constexpr auto M1 = Number<MPerBlock>{};
constexpr auto N1 = Number<NPerBlock>{};
const auto M0 = M / M1;
const auto N0 = N / N1;
constexpr auto M11 =
Number<container_reduce(M11N11ThreadClusterM110Xs{}, math::multiplies{}, I1) *
M1PerThreadM111>{};
constexpr auto N11 =
Number<container_reduce(M11N11ThreadClusterN110Xs{}, math::multiplies{}, I1) *
N1PerThreadN111>{};
constexpr auto M10 = M1 / M11;
constexpr auto N10 = N1 / N11;
const auto c_grid_desc_m0_m10_m11_n0_n10_n11 = transform_tensor_descriptor(
c_grid_desc_m_n,
make_tuple(make_unmerge_transform(make_tuple(M0, M10, M11)),
make_unmerge_transform(make_tuple(N0, N10, N11))),
make_tuple(Sequence<0>{}, Sequence<1>{}),
make_tuple(Sequence<0, 1, 2>{}, Sequence<3, 4, 5>{}));
return c_grid_desc_m0_m10_m11_n0_n10_n11;
}
// return block_id to C matrix tile idx (m0, n0) mapping
__host__ __device__ static constexpr auto MakeCBlockClusterAdaptor(
const CGridDesc_M_N& c_m_n_grid_desc, index_t M01, index_t N01, index_t KBatch)
{
return BlockToCTileMap_KSplit_M00_N00_M01_N01<MPerBlock, NPerBlock, CGridDesc_M_N>(
c_m_n_grid_desc, M01, N01, KBatch);
}
using AGridDesc_B_K0_M0_M1_K1 =
decltype(MakeAGridDescriptor_B_K0_M0_M1_K1(AGridDesc_B_K0_M_K1{}));
using BGridDesc_B_K0_N0_N1_K1 =
decltype(MakeBGridDescriptor_B_K0_N0_N1_K1(BGridDesc_B_K0_N_K1{}));
using CGridDesc_M0_M10_M11_N0_N10_N11 =
decltype(MakeCGridDescriptor_M0_M10_M11_N0_N10_N11(CGridDesc_M_N{}));
using CBlockClusterAdaptor = decltype(MakeCBlockClusterAdaptor(CGridDesc_M_N{}, 1, 1, 1));
template <bool HasMainKBlockLoop, bool HasDoubleTailKBlockLoop>
__device__ static void
Run(const FloatAB* __restrict__ p_a_grid,
const FloatAB* __restrict__ p_b_grid,
FloatC* __restrict__ p_c_grid,
FloatAB* __restrict__ p_shared_block,
const AGridDesc_B_K0_M0_M1_K1& a_grid_desc_b_k0_m0_m1_k1,
const BGridDesc_B_K0_N0_N1_K1& b_grid_desc_b_k0_n0_n1_k1,
const CGridDesc_M0_M10_M11_N0_N10_N11& c_grid_desc_m0_m10_m11_n0_n10_n11,
const CBlockClusterAdaptor& c_block_cluster_adaptor,
integral_constant<bool, HasMainKBlockLoop>,
integral_constant<bool, HasDoubleTailKBlockLoop>)
{
const auto a_global_buf = make_dynamic_buffer<AddressSpaceEnum::Global>(
p_a_grid, a_grid_desc_b_k0_m0_m1_k1.GetElementSpaceSize());
const auto b_global_buf = make_dynamic_buffer<AddressSpaceEnum::Global>(
p_b_grid, b_grid_desc_b_k0_n0_n1_k1.GetElementSpaceSize());
auto c_grid_buf = make_dynamic_buffer<AddressSpaceEnum::Global>(
p_c_grid, c_grid_desc_m0_m10_m11_n0_n10_n11.GetElementSpaceSize());
// divide block work by [M, N]
const auto block_work_idx =
c_block_cluster_adaptor.CalculateBottomIndex(make_multi_index(get_block_1d_id()));
const index_t k_batch_id = block_work_idx[I0];
if(!c_block_cluster_adaptor.ValidCTileIndex(
make_tuple(block_work_idx[I1], block_work_idx[I2]),
make_tuple(c_grid_desc_m0_m10_m11_n0_n10_n11.GetLength(I0),
c_grid_desc_m0_m10_m11_n0_n10_n11.GetLength(I3))))
{
return;
}
// HACK: this force m/n_block_data_idx_on_grid into SGPR
const index_t m_block_data_idx_on_grid = __builtin_amdgcn_readfirstlane(block_work_idx[I1]);
const index_t n_block_data_idx_on_grid = __builtin_amdgcn_readfirstlane(block_work_idx[I2]);
// TODO: change this. I think it needs multi-dimensional alignment
constexpr auto max_lds_align = K1;
// TODO: check alignment
// A matrix in LDS memory, dst of blockwise copy
// be careful of LDS alignment
constexpr auto a_block_desc_b_k0_m0_m1_k1 = make_naive_tensor_descriptor_aligned(
make_tuple(I1, Number<K0PerBlock>{}, I1, Number<MPerBlock>{}, K1), max_lds_align);
// TODO: check alignment
// B matrix in LDS memory, dst of blockwise copy
// be careful of LDS alignment
constexpr auto b_block_desc_b_k0_n0_n1_k1 = make_naive_tensor_descriptor_aligned(
make_tuple(I1, Number<K0PerBlock>{}, I1, Number<NPerBlock>{}, K1), max_lds_align);
// TODO: check alignment
// A matrix in LDS memory, dst of blockwise copy
// be careful of LDS alignment
constexpr auto a_block_desc_k0_m0_m1_k1 = make_naive_tensor_descriptor_aligned(
make_tuple(Number<K0PerBlock>{}, I1, Number<MPerBlock>{}, K1), max_lds_align);
// TODO: check alignment
// B matrix in LDS memory, dst of blockwise copy
// be careful of LDS alignment
constexpr auto b_block_desc_k0_n0_n1_k1 = make_naive_tensor_descriptor_aligned(
make_tuple(Number<K0PerBlock>{}, I1, Number<NPerBlock>{}, K1), max_lds_align);
// TODO: check alignment
// A matrix in LDS memory, for blockwise GEMM
constexpr auto a_k0_m_k1_block_desc = make_naive_tensor_descriptor_aligned(
make_tuple(Number<K0PerBlock>{}, Number<MPerBlock>{}, K1), max_lds_align);
// TODO: check alignment
// B matrix in LDS memory, for blockwise GEMM
constexpr auto b_k0_n_k1_block_desc = make_naive_tensor_descriptor_aligned(
make_tuple(Number<K0PerBlock>{}, Number<NPerBlock>{}, K1), max_lds_align);
static_assert(a_block_desc_k0_m0_m1_k1.GetElementSpaceSize() ==
a_k0_m_k1_block_desc.GetElementSpaceSize() &&
b_block_desc_k0_n0_n1_k1.GetElementSpaceSize() ==
b_k0_n_k1_block_desc.GetElementSpaceSize() &&
"wrong!");
// A matrix blockwise copy
auto a_blockwise_copy = BlockwiseTensorSliceTransfer_v5r1<
BlockSize,
InMemoryDataOperationEnum::Set,
Sequence<1, K0PerBlock, 1, MPerBlock, K1.value>,
ABlockTransferThreadSliceLengths_K0_M0_M1_K1,
ABlockTransferThreadClusterLengths_K0_M0_M1_K1,
ABlockTransferThreadClusterArrangeOrder,
FloatAB,
FloatAB,
remove_reference_t<decltype(a_grid_desc_b_k0_m0_m1_k1)>,
decltype(a_block_desc_b_k0_m0_m1_k1),
ABlockTransferSrcAccessOrder,
Sequence<0, 1, 2, 3, 4>,
ABlockTransferSrcVectorTensorLengths_K0_M0_M1_K1, // SrcVectorTensorLengths
ABlockTransferDstVectorTensorLengths_K0_M0_M1_K1, // DstVectorTensorLengths
ABlockTransferSrcVectorTensorContiguousDimOrder, // SrcVectorTensorContiguousDimOrder
Sequence<0, 1, 2, 3, 4>, // DstVectorTensorContiguousDimOrder
false,
true>(a_grid_desc_b_k0_m0_m1_k1,
make_multi_index(k_batch_id, 0, m_block_data_idx_on_grid, 0, 0),
a_block_desc_b_k0_m0_m1_k1,
make_multi_index(0, 0, 0, 0, 0));
// B matrix blockwise copy
auto b_blockwise_copy = BlockwiseTensorSliceTransfer_v5r1<
BlockSize,
InMemoryDataOperationEnum::Set,
Sequence<1, K0PerBlock, 1, NPerBlock, K1.value>,
BBlockTransferThreadSliceLengths_K0_N0_N1_K1,
BBlockTransferThreadClusterLengths_K0_N0_N1_K1,
BBlockTransferThreadClusterArrangeOrder,
FloatAB,
FloatAB,
remove_reference_t<decltype(b_grid_desc_b_k0_n0_n1_k1)>,
decltype(b_block_desc_b_k0_n0_n1_k1),
BBlockTransferSrcAccessOrder,
Sequence<0, 1, 2, 3, 4>,
BBlockTransferSrcVectorTensorLengths_K0_N0_N1_K1, // SrcVectorTensorLengths
BBlockTransferDstVectorTensorLengths_K0_N0_N1_K1, // DstVectorTensorLengths
BBlockTransferSrcVectorTensorContiguousDimOrder, // SrcVectorTensorContiguousDimOrder
Sequence<0, 1, 2, 3, 4>, // DstVectorTensorContiguousDimOrder
false,
true>(b_grid_desc_b_k0_n0_n1_k1,
make_multi_index(k_batch_id, 0, n_block_data_idx_on_grid, 0, 0),
b_block_desc_b_k0_n0_n1_k1,
make_multi_index(0, 0, 0, 0, 0));
// GEMM definition
// c_mtx += transpose(a_mtx) * b_mtx
// a_mtx[K0PerBlock, MPerBlock] is in LDS
// b_mtx[KPerBlocl, NPerBlock] is in LDS
// c_mtx[MPerBlock, NPerBlock] is distributed among threads, and saved in
// register
const auto blockwise_gemm =
BlockwiseGemmDl_A_BK0_BM_BK1_B_BK0_BN_BK1_C_BM0_BM1_BN0_BN1_pipeline_BM0_2_BN0_2<
BlockSize,
FloatAB,
FloatAB,
FloatAcc,
decltype(a_k0_m_k1_block_desc),
decltype(b_k0_n_k1_block_desc),
M1PerThreadM111,
N1PerThreadN111,
KPerThread,
M11N11ThreadClusterM110Xs,
M11N11ThreadClusterN110Xs,
M1PerThreadM111,
N1PerThreadN111>{};
constexpr auto c_m10_m11_n10_n11_thread_tensor_lengths =
decltype(blockwise_gemm)::GetCThreadTensorLengths_BM0_BM1_BN0_BN1();
constexpr auto c_thread_desc_m10_m11_n10_n11 = make_naive_tensor_descriptor_packed(
sequence_to_tuple_of_number(c_m10_m11_n10_n11_thread_tensor_lengths));
// LDS allocation for A and B: be careful of alignment
constexpr auto a_block_aligned_space_size = math::integer_least_multiple(
a_block_desc_k0_m0_m1_k1.GetElementSpaceSize(), max_lds_align);
constexpr auto b_block_aligned_space_size = math::integer_least_multiple(
b_block_desc_k0_n0_n1_k1.GetElementSpaceSize(), max_lds_align);
FloatAB* p_a_block_double = p_shared_block;
FloatAB* p_b_block_double = p_shared_block + 2 * a_block_aligned_space_size;
// register allocation for output
auto c_thread_buf = make_static_buffer<AddressSpaceEnum::Vgpr, FloatAcc>(
c_thread_desc_m10_m11_n10_n11.GetElementSpaceSize());
// Initialize C
c_thread_buf.Clear();
constexpr auto a_block_slice_copy_step = make_multi_index(0, K0PerBlock, 0, 0, 0);
constexpr auto b_block_slice_copy_step = make_multi_index(0, K0PerBlock, 0, 0, 0);
auto a_block_even_buf = make_dynamic_buffer<AddressSpaceEnum::Lds>(
p_a_block_double, a_block_desc_k0_m0_m1_k1.GetElementSpaceSize());
auto b_block_even_buf = make_dynamic_buffer<AddressSpaceEnum::Lds>(
p_b_block_double, b_block_desc_k0_n0_n1_k1.GetElementSpaceSize());
auto a_block_odd_buf = make_dynamic_buffer<AddressSpaceEnum::Lds>(
p_a_block_double + a_block_aligned_space_size,
a_block_desc_k0_m0_m1_k1.GetElementSpaceSize());
auto b_block_odd_buf = make_dynamic_buffer<AddressSpaceEnum::Lds>(
p_b_block_double + b_block_aligned_space_size,
b_block_desc_k0_n0_n1_k1.GetElementSpaceSize());
// LDS double buffer: preload data into LDS
{
a_blockwise_copy.RunRead(a_grid_desc_b_k0_m0_m1_k1, a_global_buf);
b_blockwise_copy.RunRead(b_grid_desc_b_k0_n0_n1_k1, b_global_buf);
a_blockwise_copy.RunWrite(a_block_desc_b_k0_m0_m1_k1, a_block_even_buf);
b_blockwise_copy.RunWrite(b_block_desc_b_k0_n0_n1_k1, b_block_even_buf);
}
if constexpr(HasMainKBlockLoop)
{
const auto K0 = a_grid_desc_b_k0_m0_m1_k1.GetLength(I1);
index_t k_block_data_begin = 0;
// LDS double buffer: main body
// use Do-While loop instead of For loop to simplify control flow
do
{
// even iteration
a_blockwise_copy.MoveSrcSliceWindow(a_grid_desc_b_k0_m0_m1_k1,
a_block_slice_copy_step);
b_blockwise_copy.MoveSrcSliceWindow(b_grid_desc_b_k0_n0_n1_k1,
b_block_slice_copy_step);
// LDS doubel buffer: load next data from device mem
a_blockwise_copy.RunRead(a_grid_desc_b_k0_m0_m1_k1, a_global_buf);
b_blockwise_copy.RunRead(b_grid_desc_b_k0_n0_n1_k1, b_global_buf);
block_sync_lds();
// LDS double buffer: GEMM on current data
blockwise_gemm.Run(c_thread_desc_m10_m11_n10_n11,
a_block_even_buf,
b_block_even_buf,
c_thread_buf);
// LDS double buffer: store next data to LDS
a_blockwise_copy.RunWrite(a_block_desc_b_k0_m0_m1_k1, a_block_odd_buf);
b_blockwise_copy.RunWrite(b_block_desc_b_k0_n0_n1_k1, b_block_odd_buf);
// odd iteration
a_blockwise_copy.MoveSrcSliceWindow(a_grid_desc_b_k0_m0_m1_k1,
a_block_slice_copy_step);
b_blockwise_copy.MoveSrcSliceWindow(b_grid_desc_b_k0_n0_n1_k1,
b_block_slice_copy_step);
// LDS doubel buffer: load next data from device mem
a_blockwise_copy.RunRead(a_grid_desc_b_k0_m0_m1_k1, a_global_buf);
b_blockwise_copy.RunRead(b_grid_desc_b_k0_n0_n1_k1, b_global_buf);
block_sync_lds();
// LDS double buffer: GEMM on current data
blockwise_gemm.Run(
c_thread_desc_m10_m11_n10_n11, a_block_odd_buf, b_block_odd_buf, c_thread_buf);
// LDS double buffer: store next data to LDS
a_blockwise_copy.RunWrite(a_block_desc_b_k0_m0_m1_k1, a_block_even_buf);
b_blockwise_copy.RunWrite(b_block_desc_b_k0_n0_n1_k1, b_block_even_buf);
k_block_data_begin += 2 * K0PerBlock;
} while(k_block_data_begin < K0 - 2 * K0PerBlock);
}
// LDS double buffer: tail
if constexpr(HasDoubleTailKBlockLoop) // if has 2 iteration left
{
a_blockwise_copy.MoveSrcSliceWindow(a_grid_desc_b_k0_m0_m1_k1, a_block_slice_copy_step);
b_blockwise_copy.MoveSrcSliceWindow(b_grid_desc_b_k0_n0_n1_k1, b_block_slice_copy_step);
block_sync_lds();
// LDS double buffer: load last data from device mem
a_blockwise_copy.RunRead(a_grid_desc_b_k0_m0_m1_k1, a_global_buf);
b_blockwise_copy.RunRead(b_grid_desc_b_k0_n0_n1_k1, b_global_buf);
// LDS double buffer: GEMM on 2nd-last data
blockwise_gemm.Run(
c_thread_desc_m10_m11_n10_n11, a_block_even_buf, b_block_even_buf, c_thread_buf);
// LDS double buffer: store last data to LDS
a_blockwise_copy.RunWrite(a_block_desc_b_k0_m0_m1_k1, a_block_odd_buf);
b_blockwise_copy.RunWrite(b_block_desc_b_k0_n0_n1_k1, b_block_odd_buf);
block_sync_lds();
// LDS double buffer: GEMM on last data
blockwise_gemm.Run(
c_thread_desc_m10_m11_n10_n11, a_block_odd_buf, b_block_odd_buf, c_thread_buf);
}
else // if has 1 iteration left
{
__syncthreads();
// LDS double buffer: GEMM on last data
blockwise_gemm.Run(
c_thread_desc_m10_m11_n10_n11, a_block_even_buf, b_block_even_buf, c_thread_buf);
}
// output: register to global memory
{
constexpr auto c_thread_desc_m0_m10_m11_n0_n10_n11 =
make_naive_tensor_descriptor_packed(
make_tuple(I1,
Number<c_m10_m11_n10_n11_thread_tensor_lengths[I0]>{},
Number<c_m10_m11_n10_n11_thread_tensor_lengths[I1]>{},
I1,
Number<c_m10_m11_n10_n11_thread_tensor_lengths[I2]>{},
Number<c_m10_m11_n10_n11_thread_tensor_lengths[I3]>{}));
const auto c_m10_m11_n10_n11_thread_origin_idx_on_block =
blockwise_gemm.CalculateCThreadOriginOnBlock_BM0_BM1_BN0_BN1(
get_thread_local_1d_id());
ThreadwiseTensorSliceTransfer_v1r3<
FloatAcc,
FloatC,
decltype(c_thread_desc_m0_m10_m11_n0_n10_n11),
decltype(c_grid_desc_m0_m10_m11_n0_n10_n11),
ck::tensor_operation::element_wise::PassThrough,
Sequence<1,
c_m10_m11_n10_n11_thread_tensor_lengths[I0],
c_m10_m11_n10_n11_thread_tensor_lengths[I1],
1,
c_m10_m11_n10_n11_thread_tensor_lengths[I2],
c_m10_m11_n10_n11_thread_tensor_lengths[I3]>,
CThreadTransferSrcDstAccessOrder,
CThreadTransferSrcDstVectorDim,
CThreadTransferDstScalarPerVector,
CGlobalMemoryDataOperation,
1,
true>{c_grid_desc_m0_m10_m11_n0_n10_n11,
make_multi_index(m_block_data_idx_on_grid,
c_m10_m11_n10_n11_thread_origin_idx_on_block[I0],
c_m10_m11_n10_n11_thread_origin_idx_on_block[I1],
n_block_data_idx_on_grid,
c_m10_m11_n10_n11_thread_origin_idx_on_block[I2],
c_m10_m11_n10_n11_thread_origin_idx_on_block[I3]),
ck::tensor_operation::element_wise::PassThrough{}}
.Run(c_thread_desc_m0_m10_m11_n0_n10_n11,
make_tuple(I0, I0, I0, I0, I0, I0),
c_thread_buf,
c_grid_desc_m0_m10_m11_n0_n10_n11,
c_grid_buf);
}
}
};
} // namespace ck