415 lines
19 KiB
Plaintext
415 lines
19 KiB
Plaintext
/*******************************************************************************
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* Copyright (c) 2015-2018 Skymind, Inc.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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//
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// @author raver119@gmail.com
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// @author Yurii Shyrma (iuriish@yahoo.com)
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//
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#include <exceptions/cuda_exception.h>
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#include <cublas_v2.h>
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#include "../MmulHelper.h"
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#include <specials_cuda.h>
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namespace nd4j {
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//////////////////////////////////////////////////////////////////////////////
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// MXK x KxN = MxN
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// C array must be in f order
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template <typename T1, typename T2, typename T3>
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static __global__ void usualCudaGemm(const bool transA, const bool transB, const int M, const int N, const int K, const double alpha, const void* vA, const int lda, const void* vB, const int ldb, const double beta, void* vC, const int ldc) {
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T1* A = reinterpret_cast<T1*>(const_cast<void*>(vA));
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T2* B = reinterpret_cast<T2*>(const_cast<void*>(vB));
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T3* C = reinterpret_cast<T3*>(vC);
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__shared__ T3 alphaZ, betaZ;
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__shared__ Nd4jLong strideArow, strideAcol, strideBrow, strideBcol;
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const int row = blockIdx.y * blockDim.y + threadIdx.y;
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const int col = blockIdx.x * blockDim.x + threadIdx.x;
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if(row == 0 && col == 0) {
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alphaZ = alpha;
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betaZ = beta;
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if(transA) { strideArow = lda; strideAcol = 1; } else { strideArow = 1; strideAcol = lda; }
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if(transB) { strideBrow = ldb; strideBcol = 1; } else { strideBrow = 1; strideBcol = ldb; }
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}
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__syncthreads();
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T3 val = 0;
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if (row < M && col < N)
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for (int i = 0; i < K; i++)
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val = val + A[row * strideArow + i * strideAcol] * B[i * strideBrow + col * strideBcol];
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C[row + col * ldc] = alphaZ * val + betaZ * C[row + col * ldc];
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}
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////////////////////////////////////////////////////////////////////////
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template <typename T1, typename T2, typename T3>
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__host__ static void usualGemm(const dim3 &blocksPerGrid, const dim3 &threadsPerBlock, cudaStream_t *stream, const bool transA, const bool transB, const int M, const int N, const int K, const double alpha, const void* vA, const int lda, const void* vB, const int ldb, const double beta, void* vC, const int ldc) {
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usualCudaGemm<T1,T2,T3><<<blocksPerGrid, threadsPerBlock, 1024, *stream>>>(transA, transB, M, N, K, alpha, vA, lda, vB, ldb, beta, vC, ldc);
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}
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//////////////////////////////////////////////////////////////////////////////
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// MXN x N = M
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template <typename T1, typename T2, typename T3>
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static __global__ void usualCudaGemv(const bool transA, const int M, const int N, const double alpha, const void* vA, const int lda, const void* vX, const int incx, const double beta, void* vY, const int incy) {
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T1* A = reinterpret_cast<T1*>(const_cast<void*>(vA));
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T2* X = reinterpret_cast<T2*>(const_cast<void*>(vX));
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T3* Y = reinterpret_cast<T3*>(vY);
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__shared__ T3 alphaZ, betaZ;
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__shared__ Nd4jLong strideArow, strideAcol;
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const int row = blockIdx.x * blockDim.x + threadIdx.x;
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if(row == 0) {
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alphaZ = alpha;
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betaZ = beta;
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if(transA) { strideArow = lda; strideAcol = 1; } else { strideArow = 1; strideAcol = lda; }
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}
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__syncthreads();
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T3 val = 0;
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if (row < M)
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for (int i = 0; i < N; i++) {
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val = val + A[row * strideArow + i * strideAcol] * X[i * incx];
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}
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Y[row * incy] = alphaZ * val + betaZ * Y[row * incy];
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}
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////////////////////////////////////////////////////////////////////////
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template <typename T1, typename T2, typename T3>
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__host__ static void usualGemv(const dim3 &blocksPerGrid, const dim3 &threadsPerBlock, cudaStream_t *stream, const bool transA, const int M, const int N, const double alpha, const void* vA, const int lda, const void* vX, const int incx, const double beta, void* vY, const int incy) {
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usualCudaGemv<T1,T2,T3><<<blocksPerGrid, threadsPerBlock, 1024, *stream>>>(transA, M, N, alpha, vA, lda, vX, incx, beta, vY, incy);
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}
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//////////////////////////////////////////////////////////////////////////////
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template <typename T1, typename T2, typename T3>
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static __global__ void usualCudaDot(const Nd4jLong length, const double alpha, const void* vX, const Nd4jLong incx, const void* vY, const Nd4jLong incy, const double beta, void* vZ) {
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T1* X = reinterpret_cast<T1*>(const_cast<void*>(vX));
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T2* Y = reinterpret_cast<T2*>(const_cast<void*>(vY));
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T3* Z = reinterpret_cast<T3*>(vZ);
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extern __shared__ char shmem[];
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auto pairwiseMul = reinterpret_cast<T3*>(shmem);
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const int tid = blockIdx.x * blockDim.x + threadIdx.x;
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if(tid < length)
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pairwiseMul[tid] = X[tid * incx] * Y[tid * incy];
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__syncthreads();
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if(tid == 0) {
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T3 sum = 0;
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for(Nd4jLong i = 0; i < length; ++i)
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sum = sum + pairwiseMul[i];
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*Z = (T3)alpha * sum + (T3)beta * *Z;
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}
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}
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////////////////////////////////////////////////////////////////////////
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template <typename T1, typename T2, typename T3>
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__host__ static void usualDot(const dim3 &blocksPerGrid, const dim3 &threadsPerBlock, cudaStream_t *stream, const Nd4jLong length, const double alpha, const void* vX, const Nd4jLong incx, const void* vY, const Nd4jLong incy, const double beta, void* vZ) {
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usualCudaDot<T1,T2,T3><<<blocksPerGrid, threadsPerBlock, length*sizeof(T3) + 128, *stream>>>(length, alpha, vX, incx, vY, incy, beta, vZ);
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}
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//////////////////////////////////////////////////////////////////////////////
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// MXK x KxN = MxN
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NDArray* MmulHelper::mmulMxM(const NDArray* A, const NDArray* B, NDArray* C, double alpha, double beta, const char outOrder) {
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if(A->rankOf() != 2)
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throw std::runtime_error("MmulHelper::mmulMxM cuda: rank of A array is not equal 2 !");
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if(B->rankOf() != 2)
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throw std::runtime_error("MmulHelper::mmulMxM cuda: rank of B array is not equal 2 !");
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auto M = A->sizeAt(0);
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auto K = A->sizeAt(1);
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auto N = B->sizeAt(1);
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if(C != nullptr && C->rankOf() != 2)
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throw std::runtime_error("MmulHelper::mmulMxM cuda: rank of C array is not equal 2 !");
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if(B->sizeAt(0) != K)
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throw std::runtime_error("MmulHelper::mmulMxM cuda: B array has wrong number of rows !");
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if(C != nullptr && C->sizeAt(0) != M)
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throw std::runtime_error("MmulHelper::mmulMxM cuda: C array has wrong number of rows !");
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if(C != nullptr && C->sizeAt(1) != N)
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throw std::runtime_error("MmulHelper::mmulMxM cuda: C array has wrong number of columns !");
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if(C == nullptr)
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C = new NDArray(outOrder, {M,N}, DataTypeUtils::pickPairwiseResultType(A->dataType(), B->dataType()), A->getContext());
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NDArray *pA(const_cast<NDArray*>(A)), *pB(const_cast<NDArray*>(B)), *pC(const_cast<NDArray*>(C));
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std::vector<NDArray*> toDelete;
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if(A->ews() != 1) {
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pA = pA->dup('f');
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toDelete.push_back(pA);
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}
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if(B->ews() != 1) {
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pB = pB->dup('f');
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toDelete.push_back(pB);
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}
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if(C->ews() != 1) {
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pC = pC->dup('f');
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toDelete.push_back(pC);
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}
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if(pC->ordering() != 'f') {
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auto temp = pA;
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pA = new NDArray(pB ->permute({1,0}));
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pB = new NDArray(temp->permute({1,0}));
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pC = new NDArray(pC ->permute({1,0}));
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toDelete.push_back(pA);
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toDelete.push_back(pB);
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toDelete.push_back(pC);
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M = pA->sizeAt(0);
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K = pA->sizeAt(1);
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N = pB->sizeAt(1);
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}
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const auto aOrder = pA->ordering();
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const auto bOrder = pB->ordering();
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const bool transA = aOrder != 'f';
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const bool transB = bOrder != 'f';
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const cublasOperation_t transAblas = transA ? CUBLAS_OP_T : CUBLAS_OP_N;
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const cublasOperation_t transBblas = transB ? CUBLAS_OP_T : CUBLAS_OP_N;
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const int lda = aOrder == 'f' ? M : K;
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const int ldb = bOrder == 'f' ? K : N;
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const int ldc = M; // cOrder == 'f' ? M : N;
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const auto aType = pA->dataType();
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const auto bType = pB->dataType();
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const auto cType = pC->dataType();
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auto handle = reinterpret_cast<cublasHandle_t *>(A->getContext()->getCublasHandle());
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auto stream = A->getContext()->getCudaStream();
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auto status = cublasSetStream_v2(*handle, *stream);
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if (status != CUBLAS_STATUS_SUCCESS) throw cuda_exception::build("MmulHelper::mmulMxM cuda failed !", status);
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const bool AB(aType == bType), AC(aType == cType), ABC(AB && AC);
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NDArray::prepareSpecialUse({pC}, {pA, pB});
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// choose appropriate cuda gemm api depending on data types
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if(ABC && aType == DataType::DOUBLE) {
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status = cublasDgemm(*handle, transAblas, transBblas, M, N, K, &alpha, (double*)pA->getSpecialBuffer(), lda, (double*)pB->getSpecialBuffer(), ldb, &beta, (double*)pC->getSpecialBuffer(), ldc);
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}
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else if(ABC && aType == DataType::FLOAT32) {
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float alphaF(alpha), betaF(beta);
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status = cublasSgemm(*handle, transAblas, transBblas, M, N, K, &alphaF, (float*)pA->getSpecialBuffer(), lda, (float*)pB->getSpecialBuffer(), ldb, &betaF, (float*)pC->getSpecialBuffer(), ldc);
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}
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else if(ABC && aType == DataType::HALF) {
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float16 alphaH(alpha), betaH(beta);
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status = cublasHgemm(*handle, transAblas, transBblas, M, N, K, &alphaH.data, (__half*)pA->getSpecialBuffer(), lda, (__half*)pB->getSpecialBuffer(), ldb, &betaH.data, (__half*)pC->getSpecialBuffer(), ldc);
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}
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else if(AB && aType == DataType::INT8 && cType == DataType::FLOAT32) {
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float alphaF(alpha), betaF(beta);
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status = cublasSgemmEx(*handle, transAblas, transBblas, M, N, K, &alphaF, pA->getSpecialBuffer(), CUDA_R_8I, lda, pB->getSpecialBuffer(), CUDA_R_8I, ldb, &betaF, pC->getSpecialBuffer(), CUDA_R_32F, ldc);
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}
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else if(AB && aType == DataType::HALF && cType == DataType::FLOAT32) {
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float alphaF(alpha), betaF(beta);
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status = cublasSgemmEx(*handle, transAblas, transBblas, M, N, K, &alphaF, pA->getSpecialBuffer(), CUDA_R_16F, lda, pB->getSpecialBuffer(), CUDA_R_16F, ldb, &betaF, pC->getSpecialBuffer(), CUDA_R_32F, ldc);
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}
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else {
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dim3 threadsPerBlock(N, M);
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dim3 blocksPerGrid(1, 1);
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if (M*N > 512){
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threadsPerBlock.x = threadsPerBlock.y = 512;
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blocksPerGrid.x = math::nd4j_ceil<double, int>(static_cast<double>(N) / threadsPerBlock.x); // cols
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blocksPerGrid.y = math::nd4j_ceil<double, int>(static_cast<double>(M) / threadsPerBlock.y); // rows
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}
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//BUILD_TRIPLE_SELECTOR(aType, bType, cType, usualGemm, (blocksPerGrid, threadsPerBlock, stream, transA, transB, M, N, K, alpha, pA->getSpecialBuffer(), lda, pB->getSpecialBuffer(), ldb, beta, pC->getSpecialBuffer(), ldc), LIBND4J_TYPES, FLOAT_TYPES, FLOAT_TYPES);
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BUILD_SINGLE_SELECTOR_THRICE(aType, usualGemm, (blocksPerGrid, threadsPerBlock, stream, transA, transB, M, N, K, alpha, pA->getSpecialBuffer(), lda, pB->getSpecialBuffer(), ldb, beta, pC->getSpecialBuffer(), ldc), LIBND4J_TYPES)
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}
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if (status != CUBLAS_STATUS_SUCCESS) throw cuda_exception::build("MmulHelper::mmulMxM cuda failed !", status);
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auto cudaResult = cudaStreamSynchronize(*stream);
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if (cudaResult != 0) throw cuda_exception::build("MmulHelper::mmulMxM cuda failed !", cudaResult);
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NDArray::registerSpecialUse({pC}, {pA, pB});
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if(C->ews() != 1)
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C->assign(pC);
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for(int i = toDelete.size() - 1; i >= 0; --i)
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delete toDelete[i];
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return C;
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}
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////////////////////////////////////////////////////////////////////////////
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// MXN x N = M
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NDArray* MmulHelper::mmulMxV(const NDArray* A, const NDArray* X, nd4j::NDArray* Y, const double alpha, const double beta, const char outOrder) {
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int xLenDim, yLenDim(0);
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if(A->rankOf() != 2)
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throw std::runtime_error("MmulHelper::mmulMxV cuda: rank of A array is not equal 2 !");
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if(!shape::isCommonVector(X->getShapeInfo(), xLenDim))
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throw std::runtime_error("MmulHelper::mmulMxV cuda: X array must be vector !");
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const auto M = A->sizeAt(0);
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const auto N = A->sizeAt(1);
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if(Y != nullptr && !shape::isCommonVector(Y->getShapeInfo(), yLenDim))
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throw std::runtime_error("MmulHelper::mmulMxV cuda: Y array must be vector !");
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if(X->lengthOf() != N)
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throw std::runtime_error("MmulHelper::mmulMxV cuda: X vector has wrong length !");
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if(Y != nullptr && Y->lengthOf() != M)
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throw std::runtime_error("MmulHelper::mmulMxV cuda: Y array has wrong length !");
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if(Y == nullptr)
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Y = new NDArray(outOrder, {M}, DataTypeUtils::pickPairwiseResultType(A->dataType(), X->dataType()), A->getContext());
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NDArray *pA(const_cast<NDArray*>(A));
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if(A->ews() != 1)
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pA = pA->dup('f');
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const bool transA = pA->ordering() == 'c';
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const cublasOperation_t transAblas = transA ? CUBLAS_OP_T : CUBLAS_OP_N;
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int lda, lta;
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if(transA) { lda = N; lta = M; }
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else { lda = M; lta = N; }
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const int incx = X->stridesOf()[xLenDim];
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const int incy = Y->stridesOf()[yLenDim];
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const auto aType = pA->dataType();
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const auto xType = X->dataType();
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const auto yType = Y->dataType();
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auto handle = reinterpret_cast<cublasHandle_t *>(A->getContext()->getCublasHandle());
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auto stream = A->getContext()->getCudaStream();
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auto status = cublasSetStream_v2(*handle, *stream);
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if (status != CUBLAS_STATUS_SUCCESS) throw cuda_exception::build("MmulHelper::mmulMxV cuda failed !", status);
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const bool AX(aType == xType), AY(aType == yType), AXY(AX && AY);
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NDArray::prepareSpecialUse({Y}, {pA, X});
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// choose appropriate cuda gemm api depending on data types
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if(AXY && aType == DataType::DOUBLE) {
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status = cublasDgemv(*handle, transAblas, lda, lta, &alpha, (double*)pA->getSpecialBuffer(), lda, (double*)X->getSpecialBuffer(), incx, &beta, (double*)Y->getSpecialBuffer(), incy);
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}
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else if(AXY && aType == DataType::FLOAT32) {
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float alphaF(alpha), betaF(beta);
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status = cublasSgemv(*handle, transAblas, lda, lta, &alphaF, (float*)pA->getSpecialBuffer(), lda, (float*)X->getSpecialBuffer(), incx, &betaF, (float*)Y->getSpecialBuffer(), incy);
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}
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else {
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dim3 threadsPerBlock(M);
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dim3 blocksPerGrid(1);
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if (M > 512){
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threadsPerBlock.x = 512;
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blocksPerGrid.x = math::nd4j_ceil<double, int>(static_cast<double>(M) / threadsPerBlock.x); // rows
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}
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//BUILD_TRIPLE_SELECTOR(aType, xType, yType, usualGemv, (blocksPerGrid, threadsPerBlock, stream, transA, M, N, alpha, pA->getSpecialBuffer(), lda, X->getSpecialBuffer(), incx, beta, Y->getSpecialBuffer(), incy), LIBND4J_TYPES, FLOAT_TYPES, FLOAT_TYPES);
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BUILD_SINGLE_SELECTOR_THRICE(xType, usualGemv, (blocksPerGrid, threadsPerBlock, stream, transA, M, N, alpha, pA->getSpecialBuffer(), lda, X->getSpecialBuffer(), incx, beta, Y->getSpecialBuffer(), incy), LIBND4J_TYPES)
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}
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if (status != CUBLAS_STATUS_SUCCESS) throw cuda_exception::build("MmulHelper::mmulMxV cuda failed !", status);
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auto cudaResult = cudaStreamSynchronize(*stream);
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if (cudaResult != 0) throw cuda_exception::build("MmulHelper::mmulMxV cuda failed !", cudaResult);
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NDArray::registerSpecialUse({Y}, {pA, X});
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if(pA != A)
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delete pA;
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return Y;
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}
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////////////////////////////////////////////////////////////////////////////
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// (X * Y) = Z[0]
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NDArray* MmulHelper::dot(const NDArray* X, const NDArray* Y, nd4j::NDArray* Z, const double alpha, const double beta) {
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int xLenDim(0), yLenDim(0);
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if(!shape::isCommonVector(X->getShapeInfo(), xLenDim))
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throw std::runtime_error("MmulHelper::dot cuda: X array must be vector !");
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if(!shape::isCommonVector(Y->getShapeInfo(), yLenDim))
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throw std::runtime_error("MmulHelper::dot cuda: Y array must be vector !");
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if(Z != nullptr && !Z->isScalar())
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throw std::runtime_error("MmulHelper::dot cuda: Z array must be scalar !");
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const auto length = X->lengthOf();
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if(Y->lengthOf() != length)
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throw std::runtime_error("MmulHelper::dot cuda: lengths of input vectors are different !");
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if(Z == nullptr)
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Z = new NDArray(DataTypeUtils::pickPairwiseResultType(X->dataType(), Y->dataType()), X->getContext());
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const Nd4jLong incx = X->stridesOf()[xLenDim];
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const Nd4jLong incy = Y->stridesOf()[yLenDim];
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const auto xType = X->dataType();
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const auto yType = Y->dataType();
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const auto zType = Z->dataType();
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if(!X->isActualOnDeviceSide()) X->syncToDevice();
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if(!Y->isActualOnDeviceSide()) Y->syncToDevice();
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if(!Z->isActualOnDeviceSide()) Z->syncToDevice();
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cudaStream_t* stream = X->getContext()->getCudaStream();
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dim3 threadsPerBlock(512);
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dim3 blocksPerGrid(1);
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if (length > 512)
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threadsPerBlock.x = math::nd4j_ceil<double, int>(static_cast<double>(length) / 512);
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NDArray::prepareSpecialUse({Z}, {X, Y});
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//BUILD_TRIPLE_SELECTOR(xType, yType, zType, usualDot, (blocksPerGrid, threadsPerBlock, stream, length, alpha, X->getSpecialBuffer(), incx, Y->getSpecialBuffer(), incy, beta, Z->getSpecialBuffer()), LIBND4J_TYPES, FLOAT_TYPES, FLOAT_TYPES);
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BUILD_SINGLE_SELECTOR_THRICE(xType, usualDot, (blocksPerGrid, threadsPerBlock, stream, length, alpha, X->getSpecialBuffer(), incx, Y->getSpecialBuffer(), incy, beta, Z->getSpecialBuffer()), LIBND4J_TYPES)
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auto cudaResult = cudaStreamSynchronize(*stream);
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if (cudaResult != 0) throw cuda_exception::build("MmulHelper::dot cuda failed !", cudaResult);
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NDArray::registerSpecialUse({Z}, {X, Y});
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return Z;
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}
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//BUILD_TRIPLE_TEMPLATE(template void usualGemm, (const dim3 &blocksPerGrid, const dim3 &threadsPerBlock, cudaStream_t *stream, const bool transA, const bool transB, const int M, const int N, const int K, const double alpha, const void* vA, const int lda, const void* vB, const int ldb, const double beta, void* vC, const int ldc), LIBND4J_TYPES, FLOAT_TYPES, FLOAT_TYPES);
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//BUILD_TRIPLE_TEMPLATE(template void usualGemv, (const dim3 &blocksPerGrid, const dim3 &threadsPerBlock, cudaStream_t *stream, const bool transA, const int M, const int N, const double alpha, const void* vA, const int lda, const void* vB, const int incx, const double beta, void* vC, const int incy), LIBND4J_TYPES, FLOAT_TYPES, FLOAT_TYPES);
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//BUILD_TRIPLE_TEMPLATE(template void usualDot, (const dim3 &blocksPerGrid, const dim3 &threadsPerBlock, cudaStream_t *stream, const Nd4jLong length, const double alpha, const void* vX, const Nd4jLong incx, const void* vY, const Nd4jLong incy, const double beta, void* vZ), LIBND4J_TYPES, FLOAT_TYPES, FLOAT_TYPES);
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} |