mirror of
https://github.com/ROCm/composable_kernel.git
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840 lines
35 KiB
C++
840 lines
35 KiB
C++
#pragma once
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#include "threadwise_gemm.hip.hpp"
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template <index_t BlockSize,
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class BlockMatrixA,
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class BlockMatrixB,
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class ThreadMatrixC,
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bool TransA,
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bool TransB,
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bool TransC,
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index_t KPerThreadLoop,
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index_t MThreadPerCluster,
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index_t NThreadPerCluster,
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bool DistributeThreadAlongColumnFirst>
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struct BlockwiseGemmBlockABlockBThreadC
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{
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index_t mMyThreadOffsetA = 0;
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index_t mMyThreadOffsetB = 0;
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struct MatrixIndex
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{
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index_t row;
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index_t col;
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};
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__device__ BlockwiseGemmBlockABlockBThreadC()
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{
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constexpr auto a_block_mtx = BlockMatrixA{};
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constexpr auto b_block_mtx = BlockMatrixB{};
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const auto c_thread_mtx_index = GetBeginOfThreadMatrixC(get_thread_local_1d_id());
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mMyThreadOffsetA = (!TransA) ? a_block_mtx.Get1dIndex(c_thread_mtx_index.row, 0)
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: a_block_mtx.Get1dIndex(0, c_thread_mtx_index.row);
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mMyThreadOffsetB = (!TransB) ? b_block_mtx.Get1dIndex(0, c_thread_mtx_index.col)
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: b_block_mtx.Get1dIndex(c_thread_mtx_index.col, 0);
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#if 0
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if(get_thread_local_1d_id() == 0 && get_block_1d_id() == 0)
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{
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print_ConstantMatrixDescriptor(BlockMatrixA{}, "a_block_mtx: ");
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print_ConstantMatrixDescriptor(BlockMatrixB{}, "b_block_mtx: ");
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print_ConstantMatrixDescriptor(ThreadMatrixC{}, "c_thread_mtx: ");
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printf("%u %u, %u %u %u, %u %u\n",
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get_block_1d_id(),
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get_thread_local_1d_id(),
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c_thread_mtx_index.batch,
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c_thread_mtx_index.row,
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c_thread_mtx_index.col,
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mMyThreadOffsetA,
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mMyThreadOffsetB);
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}
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#endif
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}
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__device__ MatrixIndex GetBeginOfThreadMatrixC(index_t thread_id) const
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{
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if(TransA && (!TransB) && (!TransC))
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{
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constexpr auto a_block_mtx = BlockMatrixA{};
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constexpr auto b_block_mtx = BlockMatrixB{};
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static_assert(a_block_mtx.NRow() == b_block_mtx.NRow(),
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"wrong! k dimension not consistent!");
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constexpr index_t MPerBlock = a_block_mtx.NCol();
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constexpr index_t NPerBlock = b_block_mtx.NCol();
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constexpr auto c_thread_mtx = ThreadMatrixC{};
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// divide thread work
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constexpr index_t MPerThread = c_thread_mtx.NRow();
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constexpr index_t NPerThread = c_thread_mtx.NCol();
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static_assert(MPerBlock % (MPerThread * MThreadPerCluster) == 0,
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"MPerBlock % (MPerThread * MThreadPerCluster) != 0");
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static_assert(NPerBlock % (NPerThread * NThreadPerCluster) == 0,
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"NPerBlock % (NPerThread * NThreadPerCluster) != 0");
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constexpr index_t MClusterWork =
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(MPerBlock + MPerThread * MThreadPerCluster - 1) / (MPerThread * MThreadPerCluster);
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constexpr index_t NClusterWork =
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(NPerBlock + NPerThread * NThreadPerCluster - 1) / (NPerThread * NThreadPerCluster);
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static_assert(BlockSize ==
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(MClusterWork * MThreadPerCluster) *
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(NClusterWork * NThreadPerCluster),
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"wrong! wrong BlockSize");
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if(DistributeThreadAlongColumnFirst)
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{
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const index_t cluster_work_block_id =
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thread_id / (MThreadPerCluster * NThreadPerCluster);
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const index_t thread_work_cluster_id =
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thread_id - cluster_work_block_id * (MThreadPerCluster * NThreadPerCluster);
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const index_t m_cluster_work_block_id = cluster_work_block_id / NClusterWork;
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const index_t n_cluster_work_block_id =
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cluster_work_block_id - m_cluster_work_block_id * NClusterWork;
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const index_t m_thread_work_cluster_id = thread_work_cluster_id / NThreadPerCluster;
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const index_t n_thread_work_cluster_id =
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thread_work_cluster_id - m_thread_work_cluster_id * NThreadPerCluster;
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#if 0
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if(get_block_1d_id() == 0)
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{
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printf("%u %u, \t"
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"MClusterWork %u MThreadPerCluster %u NClusterWork %u NThreadPerCluster %u \t"
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"m_cluster_work_block_id %u n_cluster_work_block_id %u \t"
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"m_thread_work_cluster_id %u n_thread_work_cluster_id %u \t"
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"\n",
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get_block_1d_id(), get_thread_local_1d_id(),
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MClusterWork, MThreadPerCluster, NClusterWork, NThreadPerCluster,
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m_cluster_work_block_id, n_cluster_work_block_id,
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m_thread_work_cluster_id, n_thread_work_cluster_id);
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}
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#endif
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return MatrixIndex{m_cluster_work_block_id * (MThreadPerCluster * MPerThread) +
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m_thread_work_cluster_id * MPerThread,
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n_cluster_work_block_id * (NThreadPerCluster * NPerThread) +
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n_thread_work_cluster_id * NPerThread};
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}
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else
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{
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// not implemented
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assert(false);
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}
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}
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else
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{
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// not implemented
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assert(false);
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}
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}
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// this should be optimized away if input is known
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__device__ static MatrixIndex GetDistanceFromBeginOfThreadMatrixC(index_t m_in_c,
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index_t n_in_c)
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{
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return MatrixIndex{m_in_c, n_in_c};
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}
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template <class FloatA, class FloatB, class FloatC, class Accumulator>
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__device__ void Run(const FloatA* __restrict__ p_a_block,
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const FloatB* __restrict__ p_b_block,
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FloatC* __restrict__ p_c_thread,
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Accumulator f_accum) const
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{
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if(TransA && (!TransB) && (!TransC))
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{
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constexpr auto True = integral_constant<bool, true>{};
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constexpr auto False = integral_constant<bool, false>{};
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constexpr auto a_block_mtx = BlockMatrixA{};
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constexpr auto b_block_mtx = BlockMatrixB{};
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constexpr auto c_thread_mtx = ThreadMatrixC{};
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constexpr index_t KPerBlock = a_block_mtx.NRow(); // A is transposed
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constexpr index_t MPerThread = c_thread_mtx.NRow();
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constexpr index_t NPerThread = c_thread_mtx.NCol();
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// a is transposed, b is not
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constexpr auto a_thread_mtx =
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make_ConstantMatrixDescriptor(Number<KPerThreadLoop>{}, Number<MPerThread>{});
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constexpr auto b_thread_mtx =
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make_ConstantMatrixDescriptor(Number<KPerThreadLoop>{}, Number<NPerThread>{});
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FloatA p_a_thread[a_thread_mtx.GetElementSpace()];
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FloatB p_b_thread[b_thread_mtx.GetElementSpace()];
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// loop over k
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for(index_t k_begin = 0; k_begin < KPerBlock; k_begin += KPerThreadLoop)
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{
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threadwise_matrix_copy(a_block_mtx,
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p_a_block + mMyThreadOffsetA +
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k_begin * a_block_mtx.RowStride(),
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a_thread_mtx,
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p_a_thread,
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a_thread_mtx.GetLengths());
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threadwise_matrix_copy(b_block_mtx,
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p_b_block + mMyThreadOffsetB +
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k_begin * b_block_mtx.RowStride(),
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b_thread_mtx,
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p_b_thread,
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b_thread_mtx.GetLengths());
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threadwise_gemm(a_thread_mtx,
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True,
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p_a_thread,
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b_thread_mtx,
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False,
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p_b_thread,
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c_thread_mtx,
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False,
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p_c_thread,
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f_accum);
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}
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}
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}
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};
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// if following number are power of 2, index calculation shall be greatly reduced:
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// MPerThreadSubC, NPerThreadSubC, MLevel0Cluster, NLevel0Cluster, MLevel1Cluster, NLevel1Cluster
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template <index_t BlockSize,
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class BlockMatrixA,
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class BlockMatrixB,
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class ThreadMatrixC,
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index_t MPerThreadSubC,
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index_t NPerThreadSubC,
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index_t MLevel0Cluster,
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index_t NLevel0Cluster,
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index_t MLevel1Cluster,
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index_t NLevel1Cluster,
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index_t KPerThreadLoop>
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struct BlockwiseGemmBlockABlockBThreadCTransANormalBNormalC_v2
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{
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struct MatrixIndex
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{
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index_t row;
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index_t col;
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};
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index_t mMyThreadOffsetA;
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index_t mMyThreadOffsetB;
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__device__ BlockwiseGemmBlockABlockBThreadCTransANormalBNormalC_v2()
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{
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constexpr index_t ThreadPerLevel1Cluster =
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MLevel0Cluster * NLevel0Cluster * MLevel1Cluster * NLevel1Cluster;
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static_assert(BlockSize == ThreadPerLevel1Cluster, "wrong! wrong blocksize\n");
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constexpr auto a_block_mtx = BlockMatrixA{};
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constexpr auto b_block_mtx = BlockMatrixB{};
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constexpr auto c_thread_mtx = ThreadMatrixC{};
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static_assert(a_block_mtx.NRow() == b_block_mtx.NRow(),
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"wrong! K dimension not consistent\n");
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constexpr index_t M = a_block_mtx.NCol(); // A is transposed
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constexpr index_t N = b_block_mtx.NCol();
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constexpr index_t K = a_block_mtx.NRow();
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constexpr index_t MPerThread = c_thread_mtx.NRow();
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constexpr index_t NPerThread = c_thread_mtx.NCol();
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static_assert((MPerThread % MPerThreadSubC == 0) && (NPerThread % NPerThreadSubC == 0),
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"wrong! Cannot evenly divide thread work among repeat \n");
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constexpr index_t MRepeat = MPerThread / MPerThreadSubC;
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constexpr index_t NRepeat = NPerThread / NPerThreadSubC;
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static_assert((M % MRepeat == 0) && (N % NRepeat == 0),
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"wrong! Cannot evenly divide work among repeat\n");
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constexpr index_t MPerLevel1Cluster = M / MRepeat;
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constexpr index_t NPerLevel1Cluster = N / NRepeat;
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static_assert((MPerLevel1Cluster % MLevel1Cluster == 0) &&
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(NPerLevel1Cluster % NLevel1Cluster == 0),
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"wrong! Cannot evenly divide work among Level1Cluster\n");
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constexpr index_t MPerLevel0Cluster = MPerLevel1Cluster / MLevel1Cluster;
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constexpr index_t NPerLevel0Cluster = NPerLevel1Cluster / NLevel1Cluster;
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static_assert((MPerLevel0Cluster % MLevel0Cluster == 0) &&
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(NPerLevel0Cluster % NLevel0Cluster == 0),
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"wrong! Cannot evenly divide work among Level0Cluster\n");
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static_assert((MPerThreadSubC == MPerLevel0Cluster / MLevel0Cluster) &&
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(NPerThreadSubC == NPerLevel0Cluster / NLevel0Cluster),
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"wrong! thread work size is wrong\n");
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auto c_thread_mtx_index = GetBeginOfThreadMatrixC(get_thread_local_1d_id());
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mMyThreadOffsetA = a_block_mtx.Get1dIndex(0, c_thread_mtx_index.row);
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mMyThreadOffsetB = b_block_mtx.Get1dIndex(0, c_thread_mtx_index.col);
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}
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__device__ static MatrixIndex GetBeginOfThreadMatrixC(index_t thread_id)
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{
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constexpr index_t ThreadPerLevel0Cluster = MLevel0Cluster * NLevel0Cluster;
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index_t level1_id = thread_id / ThreadPerLevel0Cluster;
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index_t level1_m_id = level1_id / NLevel1Cluster;
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index_t level1_n_id = level1_id % NLevel1Cluster;
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index_t level0_id = thread_id % ThreadPerLevel0Cluster;
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index_t level0_m_id = level0_id / NLevel0Cluster;
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index_t level0_n_id = level0_id % NLevel0Cluster;
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constexpr index_t MPerLevel0Cluster = MPerThreadSubC * MLevel0Cluster;
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constexpr index_t NPerLevel0Cluster = NPerThreadSubC * NLevel0Cluster;
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return MatrixIndex{level1_m_id * MPerLevel0Cluster + level0_m_id * MPerThreadSubC,
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level1_n_id * NPerLevel0Cluster + level0_n_id * NPerThreadSubC};
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}
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// this should be optimized away if input is known
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__device__ static MatrixIndex GetDistanceFromBeginOfThreadMatrixC(index_t m_in_c,
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index_t n_in_c)
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{
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constexpr auto c_thread_mtx = ThreadMatrixC{};
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constexpr index_t MPerThread = c_thread_mtx.NRow();
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constexpr index_t NPerThread = c_thread_mtx.NCol();
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constexpr index_t MRepeat = MPerThread / MPerThreadSubC;
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constexpr index_t NRepeat = NPerThread / NPerThreadSubC;
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constexpr index_t MPerLevel1Cluster = MPerThreadSubC * MLevel0Cluster * MLevel1Cluster;
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constexpr index_t NPerLevel1Cluster = NPerThreadSubC * NLevel0Cluster * NLevel1Cluster;
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index_t m_repeat = m_in_c / MPerThreadSubC;
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index_t n_repeat = n_in_c / NPerThreadSubC;
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index_t m_in_sub_c = m_in_c % MPerThreadSubC;
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index_t n_in_sub_c = n_in_c % NPerThreadSubC;
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return MatrixIndex{m_repeat * MPerLevel1Cluster + m_in_sub_c,
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n_repeat * NPerLevel1Cluster + n_in_sub_c};
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}
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template <class FloatA, class FloatB, class FloatC, class Accumulator>
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__device__ void Run(const FloatA* __restrict__ p_a_block,
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const FloatB* __restrict__ p_b_block,
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FloatC* __restrict__ p_c_thread,
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Accumulator f_accum) const
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{
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constexpr auto True = integral_constant<bool, true>{};
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constexpr auto False = integral_constant<bool, false>{};
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constexpr auto a_block_mtx = BlockMatrixA{};
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constexpr auto b_block_mtx = BlockMatrixB{};
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constexpr auto c_thread_mtx = ThreadMatrixC{};
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constexpr index_t M = a_block_mtx.NCol();
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constexpr index_t N = b_block_mtx.NCol();
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constexpr index_t K = a_block_mtx.NRow();
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constexpr index_t MPerThread = c_thread_mtx.NRow();
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constexpr index_t NPerThread = c_thread_mtx.NCol();
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// thread A, B for GEMM
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constexpr auto a_thread_mtx =
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make_ConstantMatrixDescriptor(Number<KPerThreadLoop>{}, Number<MPerThread>{});
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constexpr auto b_thread_mtx =
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make_ConstantMatrixDescriptor(Number<KPerThreadLoop>{}, Number<NPerThread>{});
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// thread A-sub, B-sub for copy
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constexpr auto a_thread_sub_mtx = make_ConstantMatrixDescriptor(
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Number<KPerThreadLoop>{}, Number<MPerThreadSubC>{}, Number<MPerThread>{});
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constexpr auto b_thread_sub_mtx = make_ConstantMatrixDescriptor(
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Number<KPerThreadLoop>{}, Number<NPerThreadSubC>{}, Number<NPerThread>{});
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FloatA p_a_thread[a_thread_mtx.GetElementSpace()];
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FloatB p_b_thread[b_thread_mtx.GetElementSpace()];
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constexpr index_t MPerLevel1Cluster = MPerThreadSubC * MLevel0Cluster * MLevel1Cluster;
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constexpr index_t NPerLevel1Cluster = NPerThreadSubC * NLevel0Cluster * NLevel1Cluster;
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constexpr index_t MRepeat = MPerThread / MPerThreadSubC;
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constexpr index_t NRepeat = NPerThread / NPerThreadSubC;
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#pragma unroll
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// loop over k
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for(index_t k_begin = 0; k_begin < K; k_begin += KPerThreadLoop)
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{
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#pragma unroll
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// copy A-sub to form A
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for(index_t m_repeat = 0; m_repeat < MRepeat; ++m_repeat)
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{
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threadwise_matrix_copy(
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a_block_mtx,
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p_a_block + a_block_mtx.Get1dIndex(k_begin, m_repeat * MPerLevel1Cluster) +
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mMyThreadOffsetA,
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a_thread_mtx,
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p_a_thread + a_thread_mtx.Get1dIndex(0, m_repeat * MPerThreadSubC),
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a_thread_sub_mtx.GetLengths());
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}
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#pragma unroll
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// copy B-sub to form B
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for(index_t n_repeat = 0; n_repeat < NRepeat; ++n_repeat)
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{
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threadwise_matrix_copy(
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b_block_mtx,
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p_b_block + b_block_mtx.Get1dIndex(k_begin, n_repeat * NPerLevel1Cluster) +
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mMyThreadOffsetB,
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b_thread_mtx,
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p_b_thread + b_thread_mtx.Get1dIndex(0, n_repeat * NPerThreadSubC),
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b_thread_sub_mtx.GetLengths());
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}
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// C = A * B
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threadwise_gemm(a_thread_mtx,
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True,
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p_a_thread,
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b_thread_mtx,
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False,
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p_b_thread,
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c_thread_mtx,
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False,
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p_c_thread,
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f_accum);
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}
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}
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template <class FloatA, class FloatB, class FloatC, class Accumulator>
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__device__ void Run_asm(const FloatA* __restrict__ p_a_block,
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const FloatB* __restrict__ p_b_block,
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FloatC* __restrict__ p_c_thread,
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Accumulator f_accum) const
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{
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constexpr auto True = integral_constant<bool, true>{};
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constexpr auto False = integral_constant<bool, false>{};
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constexpr auto a_block_mtx = BlockMatrixA{};
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constexpr auto b_block_mtx = BlockMatrixB{};
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constexpr auto c_thread_mtx = ThreadMatrixC{};
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constexpr index_t M = a_block_mtx.NCol();
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constexpr index_t N = b_block_mtx.NCol();
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constexpr index_t K = a_block_mtx.NRow();
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constexpr index_t MPerThread = c_thread_mtx.NRow();
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constexpr index_t NPerThread = c_thread_mtx.NCol();
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// thread A, B for GEMM
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constexpr auto a_thread_mtx =
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make_ConstantMatrixDescriptor(Number<KPerThreadLoop>{}, Number<MPerThread>{});
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constexpr auto b_thread_mtx =
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make_ConstantMatrixDescriptor(Number<KPerThreadLoop>{}, Number<NPerThread>{});
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// thread A-sub, B-sub for copy
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constexpr auto a_thread_sub_mtx = make_ConstantMatrixDescriptor(
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Number<KPerThreadLoop>{}, Number<MPerThreadSubC>{}, Number<MPerThread>{});
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|
|
constexpr auto b_thread_sub_mtx = make_ConstantMatrixDescriptor(
|
|
Number<KPerThreadLoop>{}, Number<NPerThreadSubC>{}, Number<NPerThread>{});
|
|
|
|
FloatA p_a_thread[a_thread_mtx.GetElementSpace()];
|
|
FloatB p_b_thread[b_thread_mtx.GetElementSpace()];
|
|
|
|
constexpr index_t MPerLevel1Cluster = MPerThreadSubC * MLevel0Cluster * MLevel1Cluster;
|
|
constexpr index_t NPerLevel1Cluster = NPerThreadSubC * NLevel0Cluster * NLevel1Cluster;
|
|
|
|
constexpr index_t MRepeat = MPerThread / MPerThreadSubC;
|
|
constexpr index_t NRepeat = NPerThread / NPerThreadSubC;
|
|
|
|
#pragma unroll
|
|
// loop over k
|
|
for(index_t k_begin = 0; k_begin < K; k_begin += KPerThreadLoop)
|
|
{
|
|
//#pragma unroll
|
|
// copy A-sub to form A
|
|
for(index_t m_repeat = 0; m_repeat < MRepeat; ++m_repeat)
|
|
{
|
|
threadwise_matrix_copy(
|
|
a_block_mtx,
|
|
p_a_block + a_block_mtx.Get1dIndex(k_begin, m_repeat * MPerLevel1Cluster) +
|
|
mMyThreadOffsetA,
|
|
a_thread_mtx,
|
|
p_a_thread + a_thread_mtx.Get1dIndex(0, m_repeat * MPerThreadSubC),
|
|
a_thread_sub_mtx.GetLengths());
|
|
}
|
|
|
|
//#pragma unroll
|
|
// copy B-sub to form B
|
|
for(index_t n_repeat = 0; n_repeat < NRepeat; ++n_repeat)
|
|
{
|
|
threadwise_matrix_copy(
|
|
b_block_mtx,
|
|
p_b_block + b_block_mtx.Get1dIndex(k_begin, n_repeat * NPerLevel1Cluster) +
|
|
mMyThreadOffsetB,
|
|
b_thread_mtx,
|
|
p_b_thread + b_thread_mtx.Get1dIndex(0, n_repeat * NPerThreadSubC),
|
|
b_thread_sub_mtx.GetLengths());
|
|
}
|
|
|
|
// C = A * B
|
|
#if 1
|
|
threadwise_gemm(a_thread_mtx,
|
|
True,
|
|
p_a_thread,
|
|
b_thread_mtx,
|
|
False,
|
|
p_b_thread,
|
|
c_thread_mtx,
|
|
False,
|
|
p_c_thread,
|
|
f_accum);
|
|
#elif 0
|
|
// inline asm
|
|
static_assert(c_thread_mtx.NRow() == 8 && c_thread_mtx.NCol() == 8,
|
|
"asm is only for 8x8");
|
|
|
|
for(index_t k = 0; k < a_thread_mtx.NRow(); ++k) // A is transposed
|
|
{
|
|
const index_t bindex = b_thread_mtx.Get1dIndex(k, 0);
|
|
|
|
for(index_t i = 0; i < c_thread_mtx.NRow(); ++i)
|
|
{
|
|
const index_t aindex = a_thread_mtx.Get1dIndex(k, i); // A is transposed
|
|
const index_t cindex = c_thread_mtx.Get1dIndex(i, 0);
|
|
|
|
asm volatile("\n \
|
|
v_mac_f32 %0, %8, %9 \n \
|
|
v_mac_f32 %1, %8, %10 \n \
|
|
v_mac_f32 %2, %8, %11 \n \
|
|
v_mac_f32 %3, %8, %12 \n \
|
|
v_mac_f32 %4, %8, %13 \n \
|
|
v_mac_f32 %5, %8, %14 \n \
|
|
v_mac_f32 %6, %8, %15 \n \
|
|
v_mac_f32 %7, %8, %16 \n \
|
|
"
|
|
: "=v"(p_c_thread[cindex + 0]),
|
|
"=v"(p_c_thread[cindex + 1]),
|
|
"=v"(p_c_thread[cindex + 2]),
|
|
"=v"(p_c_thread[cindex + 3]),
|
|
"=v"(p_c_thread[cindex + 4]),
|
|
"=v"(p_c_thread[cindex + 5]),
|
|
"=v"(p_c_thread[cindex + 6]),
|
|
"=v"(p_c_thread[cindex + 7])
|
|
: "v"(p_a_thread[aindex]),
|
|
"v"(p_b_thread[bindex + 0]),
|
|
"v"(p_b_thread[bindex + 1]),
|
|
"v"(p_b_thread[bindex + 2]),
|
|
"v"(p_b_thread[bindex + 3]),
|
|
"v"(p_b_thread[bindex + 4]),
|
|
"v"(p_b_thread[bindex + 5]),
|
|
"v"(p_b_thread[bindex + 6]),
|
|
"v"(p_b_thread[bindex + 7]),
|
|
"0"(p_c_thread[cindex + 0]),
|
|
"1"(p_c_thread[cindex + 1]),
|
|
"2"(p_c_thread[cindex + 2]),
|
|
"3"(p_c_thread[cindex + 3]),
|
|
"4"(p_c_thread[cindex + 4]),
|
|
"5"(p_c_thread[cindex + 5]),
|
|
"6"(p_c_thread[cindex + 6]),
|
|
"7"(p_c_thread[cindex + 7]));
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
template <class FloatA, class FloatB, class FloatC, class Accumulator>
|
|
__device__ void Run_RegisterDoubleBuffer(FloatA* const p_a_block,
|
|
FloatB* const p_b_block,
|
|
FloatC* p_c_thread,
|
|
Accumulator f_accum) const
|
|
{
|
|
constexpr auto True = integral_constant<bool, true>{};
|
|
constexpr auto False = integral_constant<bool, false>{};
|
|
|
|
constexpr auto a_block_mtx = BlockMatrixA{};
|
|
constexpr auto b_block_mtx = BlockMatrixB{};
|
|
constexpr auto c_thread_mtx = ThreadMatrixC{};
|
|
|
|
constexpr index_t M = a_block_mtx.NCol();
|
|
constexpr index_t N = b_block_mtx.NCol();
|
|
constexpr index_t K = a_block_mtx.NRow();
|
|
|
|
constexpr index_t MPerThread = c_thread_mtx.NRow();
|
|
constexpr index_t NPerThread = c_thread_mtx.NCol();
|
|
|
|
// thread A, B for GEMM
|
|
constexpr auto a_thread_mtx =
|
|
make_ConstantMatrixDescriptor(Number<KPerThreadLoop>{}, Number<MPerThread>{});
|
|
|
|
constexpr auto b_thread_mtx =
|
|
make_ConstantMatrixDescriptor(Number<KPerThreadLoop>{}, Number<NPerThread>{});
|
|
|
|
// thread A-sub, B-sub for copy
|
|
constexpr auto a_thread_sub_mtx = make_ConstantMatrixDescriptor(
|
|
Number<KPerThreadLoop>{}, Number<MPerThreadSubC>{}, Number<MPerThread>{});
|
|
|
|
constexpr auto b_thread_sub_mtx = make_ConstantMatrixDescriptor(
|
|
Number<KPerThreadLoop>{}, Number<NPerThreadSubC>{}, Number<NPerThread>{});
|
|
|
|
// register
|
|
FloatA p_a_thread_0[a_thread_mtx.GetElementSpace()];
|
|
FloatB p_b_thread_0[b_thread_mtx.GetElementSpace()];
|
|
|
|
FloatA p_a_thread_1[a_thread_mtx.GetElementSpace()];
|
|
FloatB p_b_thread_1[b_thread_mtx.GetElementSpace()];
|
|
|
|
constexpr index_t MPerLevel1Cluster = MPerThreadSubC * MLevel0Cluster * MLevel1Cluster;
|
|
constexpr index_t NPerLevel1Cluster = NPerThreadSubC * NLevel0Cluster * NLevel1Cluster;
|
|
|
|
constexpr index_t MRepeat = MPerThread / MPerThreadSubC;
|
|
constexpr index_t NRepeat = NPerThread / NPerThreadSubC;
|
|
|
|
// preload A, B
|
|
#pragma unroll
|
|
for(index_t m_repeat = 0; m_repeat < MRepeat; ++m_repeat)
|
|
{ // copy A-sub to form A
|
|
threadwise_matrix_copy(a_block_mtx,
|
|
p_a_block + mMyThreadOffsetA + m_repeat * MPerLevel1Cluster,
|
|
a_thread_sub_mtx,
|
|
p_a_thread_0 + m_repeat * MPerThreadSubC,
|
|
a_thread_sub_mtx.GetLengths());
|
|
}
|
|
|
|
#pragma unroll
|
|
for(index_t n_repeat = 0; n_repeat < NRepeat; ++n_repeat)
|
|
{ // copy B-sub to form B
|
|
threadwise_matrix_copy(b_block_mtx,
|
|
p_b_block + mMyThreadOffsetB + n_repeat * NPerLevel1Cluster,
|
|
b_thread_sub_mtx,
|
|
p_b_thread_0 + n_repeat * NPerThreadSubC,
|
|
b_thread_sub_mtx.GetLengths());
|
|
}
|
|
|
|
bool even_loop = true;
|
|
|
|
#pragma unroll
|
|
for(index_t k_begin = 0; k_begin + KPerThreadLoop < K;
|
|
k_begin += KPerThreadLoop, even_loop = !even_loop)
|
|
{ // loop over k
|
|
FloatA* p_a_thread_now = even_loop ? p_a_thread_0 : p_a_thread_1;
|
|
FloatB* p_b_thread_now = even_loop ? p_b_thread_0 : p_b_thread_1;
|
|
|
|
FloatA* p_a_thread_next = even_loop ? p_a_thread_1 : p_a_thread_0;
|
|
FloatB* p_b_thread_next = even_loop ? p_b_thread_1 : p_b_thread_0;
|
|
|
|
// preload next A, B
|
|
#pragma unroll
|
|
for(index_t m_repeat = 0; m_repeat < MRepeat; ++m_repeat)
|
|
{ // copy A-sub to form A
|
|
threadwise_matrix_copy(a_block_mtx,
|
|
p_a_block + mMyThreadOffsetA +
|
|
(k_begin + 1) * a_block_mtx.RowStride() +
|
|
m_repeat * MPerLevel1Cluster,
|
|
a_thread_sub_mtx,
|
|
p_a_thread_next + m_repeat * MPerThreadSubC,
|
|
a_thread_sub_mtx.GetLengths());
|
|
}
|
|
|
|
#pragma unroll
|
|
for(index_t n_repeat = 0; n_repeat < NRepeat; ++n_repeat)
|
|
{ // copy B-sub to form B
|
|
threadwise_matrix_copy(b_block_mtx,
|
|
p_b_block + mMyThreadOffsetB +
|
|
(k_begin + 1) * b_block_mtx.RowStride() +
|
|
n_repeat * NPerLevel1Cluster,
|
|
b_thread_sub_mtx,
|
|
p_b_thread_next + n_repeat * NPerThreadSubC,
|
|
b_thread_sub_mtx.GetLengths());
|
|
}
|
|
|
|
// C = A * B
|
|
threadwise_gemm(a_thread_mtx,
|
|
True,
|
|
p_a_thread_now,
|
|
b_thread_mtx,
|
|
False,
|
|
p_b_thread_now,
|
|
c_thread_mtx,
|
|
False,
|
|
p_c_thread,
|
|
f_accum);
|
|
}
|
|
|
|
// last loop
|
|
{
|
|
FloatA* p_a_thread_now = even_loop ? p_a_thread_0 : p_a_thread_1;
|
|
FloatB* p_b_thread_now = even_loop ? p_b_thread_0 : p_b_thread_1;
|
|
|
|
// C = A * B
|
|
threadwise_gemm(a_thread_mtx,
|
|
True,
|
|
p_a_thread_now,
|
|
b_thread_mtx,
|
|
False,
|
|
p_b_thread_now,
|
|
c_thread_mtx,
|
|
False,
|
|
p_c_thread,
|
|
f_accum);
|
|
}
|
|
}
|
|
|
|
template <class FloatA, class FloatB, class FloatC, class Accumulator>
|
|
__device__ void Run_v2(const FloatA* __restrict__ p_a_block,
|
|
const FloatB* __restrict__ p_b_block,
|
|
FloatC* __restrict__ p_c_thread,
|
|
Accumulator f_accum) const
|
|
{
|
|
constexpr auto True = integral_constant<bool, true>{};
|
|
constexpr auto False = integral_constant<bool, false>{};
|
|
|
|
constexpr auto a_block_mtx = BlockMatrixA{};
|
|
constexpr auto b_block_mtx = BlockMatrixB{};
|
|
constexpr auto c_thread_mtx = ThreadMatrixC{};
|
|
|
|
constexpr index_t M = a_block_mtx.NCol();
|
|
constexpr index_t N = b_block_mtx.NCol();
|
|
constexpr index_t K = a_block_mtx.NRow();
|
|
|
|
constexpr index_t MPerThread = c_thread_mtx.NRow();
|
|
constexpr index_t NPerThread = c_thread_mtx.NCol();
|
|
|
|
// thread A-sub, B-sub, C-sub
|
|
constexpr auto a_thread_sub_mtx = make_ConstantMatrixDescriptor(
|
|
Number<KPerThreadLoop>{}, Number<MPerThreadSubC>{}, Number<MPerThread>{});
|
|
|
|
constexpr auto b_thread_sub_mtx = make_ConstantMatrixDescriptor(
|
|
Number<KPerThreadLoop>{}, Number<NPerThreadSubC>{}, Number<NPerThread>{});
|
|
|
|
constexpr auto c_thread_sub_mtx = make_ConstantMatrixDescriptor(
|
|
Number<MPerThreadSubC>{}, Number<NPerThreadSubC>{}, Number<NPerThread>{});
|
|
|
|
// thread A, B
|
|
constexpr auto a_thread_mtx =
|
|
make_ConstantMatrixDescriptor(Number<KPerThreadLoop>{}, Number<MPerThread>{});
|
|
|
|
constexpr auto b_thread_mtx =
|
|
make_ConstantMatrixDescriptor(Number<KPerThreadLoop>{}, Number<NPerThread>{});
|
|
|
|
FloatA p_a_thread[a_thread_mtx.GetElementSpace()];
|
|
FloatB p_b_thread[b_thread_mtx.GetElementSpace()];
|
|
|
|
constexpr index_t MPerLevel1Cluster = MPerThreadSubC * MLevel0Cluster * MLevel1Cluster;
|
|
constexpr index_t NPerLevel1Cluster = NPerThreadSubC * NLevel0Cluster * NLevel1Cluster;
|
|
|
|
constexpr index_t MRepeat = MPerThread / MPerThreadSubC;
|
|
constexpr index_t NRepeat = NPerThread / NPerThreadSubC;
|
|
|
|
#pragma unroll
|
|
// loop over k
|
|
for(index_t k_begin = 0; k_begin < K; k_begin += KPerThreadLoop)
|
|
{
|
|
// C-sub(s) in first row-wise subblock of C
|
|
{
|
|
// copy first A-sub
|
|
threadwise_matrix_copy(a_block_mtx,
|
|
p_a_block + a_block_mtx.Get1dIndex(k_begin, 0) +
|
|
mMyThreadOffsetA,
|
|
a_thread_mtx,
|
|
p_a_thread,
|
|
a_thread_sub_mtx.GetLengths());
|
|
|
|
// copy first B-sub
|
|
threadwise_matrix_copy(b_block_mtx,
|
|
p_b_block + b_block_mtx.Get1dIndex(k_begin, 0) +
|
|
mMyThreadOffsetB,
|
|
b_thread_mtx,
|
|
p_b_thread,
|
|
b_thread_sub_mtx.GetLengths());
|
|
|
|
// do first sub GEMM
|
|
threadwise_gemm(a_thread_sub_mtx,
|
|
True,
|
|
p_a_thread,
|
|
b_thread_sub_mtx,
|
|
False,
|
|
p_b_thread,
|
|
c_thread_sub_mtx,
|
|
False,
|
|
p_c_thread,
|
|
f_accum);
|
|
|
|
#pragma unroll
|
|
// copy next B-sub, and do GEMM
|
|
for(index_t n_repeat = 1; n_repeat < NRepeat; ++n_repeat)
|
|
{
|
|
threadwise_matrix_copy(
|
|
b_block_mtx,
|
|
p_b_block + b_block_mtx.Get1dIndex(k_begin, n_repeat * NPerLevel1Cluster) +
|
|
mMyThreadOffsetB,
|
|
b_thread_mtx,
|
|
p_b_thread + b_thread_mtx.Get1dIndex(0, n_repeat * NPerThreadSubC),
|
|
b_thread_sub_mtx.GetLengths());
|
|
|
|
threadwise_gemm(
|
|
a_thread_sub_mtx,
|
|
True,
|
|
p_a_thread,
|
|
b_thread_sub_mtx,
|
|
False,
|
|
p_b_thread + b_thread_mtx.Get1dIndex(0, n_repeat * NPerThreadSubC),
|
|
c_thread_sub_mtx,
|
|
False,
|
|
p_c_thread + c_thread_mtx.Get1dIndex(0, n_repeat * NPerThreadSubC),
|
|
f_accum);
|
|
}
|
|
|
|
#pragma unroll
|
|
// loop over rest of row-wise subblock
|
|
// all B-sub(s) has been copied, so only A-sub(s) need to be copied
|
|
for(index_t m_repeat = 1; m_repeat < MRepeat; ++m_repeat)
|
|
{
|
|
// copy a A-sub
|
|
threadwise_matrix_copy(
|
|
a_block_mtx,
|
|
p_a_block + a_block_mtx.Get1dIndex(k_begin, m_repeat * MPerLevel1Cluster) +
|
|
mMyThreadOffsetA,
|
|
a_thread_mtx,
|
|
p_a_thread + a_thread_mtx.Get1dIndex(0, m_repeat * MPerThreadSubC),
|
|
a_thread_sub_mtx.GetLengths());
|
|
|
|
// do some GEMMs
|
|
for(index_t n_repeat = 0; n_repeat < NRepeat; ++n_repeat)
|
|
{
|
|
threadwise_gemm(
|
|
a_thread_sub_mtx,
|
|
True,
|
|
p_a_thread + a_thread_mtx.Get1dIndex(0, m_repeat * MPerThreadSubC),
|
|
b_thread_sub_mtx,
|
|
False,
|
|
p_b_thread + b_thread_mtx.Get1dIndex(0, n_repeat * NPerThreadSubC),
|
|
c_thread_sub_mtx,
|
|
False,
|
|
p_c_thread +
|
|
c_thread_mtx.Get1dIndex(m_repeat * MPerThreadSubC,
|
|
n_repeat * NPerThreadSubC),
|
|
f_accum);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|