| // This file is part of Eigen, a lightweight C++ template library |
| // for linear algebra. |
| // |
| // Copyright (C) 2014 Benoit Steiner <benoit.steiner.goog@gmail.com> |
| // |
| // This Source Code Form is subject to the terms of the Mozilla |
| // Public License v. 2.0. If a copy of the MPL was not distributed |
| // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| |
| // TODO(mdevin): Free the cuda memory. |
| |
| #define EIGEN_TEST_NO_LONGDOUBLE |
| #define EIGEN_TEST_NO_COMPLEX |
| #define EIGEN_TEST_FUNC cxx11_tensor_cuda |
| #define EIGEN_DEFAULT_DENSE_INDEX_TYPE int |
| #define EIGEN_USE_GPU |
| |
| |
| #include "main.h" |
| #include <unsupported/Eigen/CXX11/Tensor> |
| |
| using Eigen::Tensor; |
| |
| void test_cuda_elementwise_small() { |
| Tensor<float, 1> in1(Eigen::array<int, 1>(2)); |
| Tensor<float, 1> in2(Eigen::array<int, 1>(2)); |
| Tensor<float, 1> out(Eigen::array<int, 1>(2)); |
| in1.setRandom(); |
| in2.setRandom(); |
| |
| std::size_t in1_bytes = in1.size() * sizeof(float); |
| std::size_t in2_bytes = in2.size() * sizeof(float); |
| std::size_t out_bytes = out.size() * sizeof(float); |
| |
| float* d_in1; |
| float* d_in2; |
| float* d_out; |
| cudaMalloc((void**)(&d_in1), in1_bytes); |
| cudaMalloc((void**)(&d_in2), in2_bytes); |
| cudaMalloc((void**)(&d_out), out_bytes); |
| |
| cudaMemcpy(d_in1, in1.data(), in1_bytes, cudaMemcpyHostToDevice); |
| cudaMemcpy(d_in2, in2.data(), in2_bytes, cudaMemcpyHostToDevice); |
| |
| cudaStream_t stream; |
| assert(cudaStreamCreate(&stream) == cudaSuccess); |
| Eigen::GpuDevice gpu_device(&stream); |
| |
| Eigen::TensorMap<Eigen::Tensor<float, 1>, Eigen::Aligned> gpu_in1( |
| d_in1, Eigen::array<int, 1>(2)); |
| Eigen::TensorMap<Eigen::Tensor<float, 1>, Eigen::Aligned> gpu_in2( |
| d_in2, Eigen::array<int, 1>(2)); |
| Eigen::TensorMap<Eigen::Tensor<float, 1>, Eigen::Aligned> gpu_out( |
| d_out, Eigen::array<int, 1>(2)); |
| |
| gpu_out.device(gpu_device) = gpu_in1 + gpu_in2; |
| |
| assert(cudaMemcpyAsync(out.data(), d_out, out_bytes, cudaMemcpyDeviceToHost, |
| gpu_device.stream()) == cudaSuccess); |
| assert(cudaStreamSynchronize(gpu_device.stream()) == cudaSuccess); |
| |
| for (int i = 0; i < 2; ++i) { |
| VERIFY_IS_APPROX( |
| out(Eigen::array<int, 1>(i)), |
| in1(Eigen::array<int, 1>(i)) + in2(Eigen::array<int, 1>(i))); |
| } |
| } |
| |
| void test_cuda_elementwise() |
| { |
| Tensor<float, 3> in1(Eigen::array<int, 3>(72,53,97)); |
| Tensor<float, 3> in2(Eigen::array<int, 3>(72,53,97)); |
| Tensor<float, 3> in3(Eigen::array<int, 3>(72,53,97)); |
| Tensor<float, 3> out(Eigen::array<int, 3>(72,53,97)); |
| in1.setRandom(); |
| in2.setRandom(); |
| in3.setRandom(); |
| |
| std::size_t in1_bytes = in1.size() * sizeof(float); |
| std::size_t in2_bytes = in2.size() * sizeof(float); |
| std::size_t in3_bytes = in3.size() * sizeof(float); |
| std::size_t out_bytes = out.size() * sizeof(float); |
| |
| float* d_in1; |
| float* d_in2; |
| float* d_in3; |
| float* d_out; |
| cudaMalloc((void**)(&d_in1), in1_bytes); |
| cudaMalloc((void**)(&d_in2), in2_bytes); |
| cudaMalloc((void**)(&d_in3), in3_bytes); |
| cudaMalloc((void**)(&d_out), out_bytes); |
| |
| cudaMemcpy(d_in1, in1.data(), in1_bytes, cudaMemcpyHostToDevice); |
| cudaMemcpy(d_in2, in2.data(), in2_bytes, cudaMemcpyHostToDevice); |
| cudaMemcpy(d_in3, in3.data(), in3_bytes, cudaMemcpyHostToDevice); |
| |
| cudaStream_t stream; |
| assert(cudaStreamCreate(&stream) == cudaSuccess); |
| Eigen::GpuDevice gpu_device(&stream); |
| |
| Eigen::TensorMap<Eigen::Tensor<float, 3> > gpu_in1(d_in1, Eigen::array<int, 3>(72,53,97)); |
| Eigen::TensorMap<Eigen::Tensor<float, 3> > gpu_in2(d_in2, Eigen::array<int, 3>(72,53,97)); |
| Eigen::TensorMap<Eigen::Tensor<float, 3> > gpu_in3(d_in3, Eigen::array<int, 3>(72,53,97)); |
| Eigen::TensorMap<Eigen::Tensor<float, 3> > gpu_out(d_out, Eigen::array<int, 3>(72,53,97)); |
| |
| gpu_out.device(gpu_device) = gpu_in1 + gpu_in2 * gpu_in3; |
| |
| assert(cudaMemcpyAsync(out.data(), d_out, out_bytes, cudaMemcpyDeviceToHost, gpu_device.stream()) == cudaSuccess); |
| assert(cudaStreamSynchronize(gpu_device.stream()) == cudaSuccess); |
| |
| for (int i = 0; i < 72; ++i) { |
| for (int j = 0; j < 53; ++j) { |
| for (int k = 0; k < 97; ++k) { |
| VERIFY_IS_APPROX(out(Eigen::array<int, 3>(i,j,k)), in1(Eigen::array<int, 3>(i,j,k)) + in2(Eigen::array<int, 3>(i,j,k)) * in3(Eigen::array<int, 3>(i,j,k))); |
| } |
| } |
| } |
| } |
| |
| |
| void test_cuda_reduction() |
| { |
| Tensor<float, 4> in1(Eigen::array<int, 4>(72,53,97,113)); |
| Tensor<float, 2> out(Eigen::array<int, 2>(72,97)); |
| in1.setRandom(); |
| |
| std::size_t in1_bytes = in1.size() * sizeof(float); |
| std::size_t out_bytes = out.size() * sizeof(float); |
| |
| float* d_in1; |
| float* d_out; |
| cudaMalloc((void**)(&d_in1), in1_bytes); |
| cudaMalloc((void**)(&d_out), out_bytes); |
| |
| cudaMemcpy(d_in1, in1.data(), in1_bytes, cudaMemcpyHostToDevice); |
| |
| cudaStream_t stream; |
| assert(cudaStreamCreate(&stream) == cudaSuccess); |
| Eigen::GpuDevice gpu_device(&stream); |
| |
| Eigen::TensorMap<Eigen::Tensor<float, 4> > gpu_in1(d_in1, Eigen::array<int, 4>(72,53,97,113)); |
| Eigen::TensorMap<Eigen::Tensor<float, 2> > gpu_out(d_out, Eigen::array<int, 2>(72,97)); |
| |
| array<int, 2> reduction_axis; |
| reduction_axis[0] = 1; |
| reduction_axis[1] = 3; |
| |
| gpu_out.device(gpu_device) = gpu_in1.maximum(reduction_axis); |
| |
| assert(cudaMemcpyAsync(out.data(), d_out, out_bytes, cudaMemcpyDeviceToHost, gpu_device.stream()) == cudaSuccess); |
| assert(cudaStreamSynchronize(gpu_device.stream()) == cudaSuccess); |
| |
| for (int i = 0; i < 72; ++i) { |
| for (int j = 0; j < 97; ++j) { |
| float expected = 0; |
| for (int k = 0; k < 53; ++k) { |
| for (int l = 0; l < 113; ++l) { |
| expected = |
| std::max<float>(expected, in1(Eigen::array<int, 4>(i, k, j, l))); |
| } |
| } |
| VERIFY_IS_APPROX(out(Eigen::array<int, 2>(i,j)), expected); |
| } |
| } |
| } |
| |
| template<int DataLayout> |
| static void test_cuda_contraction() |
| { |
| // with these dimensions, the output has 300 * 140 elements, which is |
| // more than 30 * 1024, which is the number of threads in blocks on |
| // a 15 SM GK110 GPU |
| Tensor<float, 4, DataLayout> t_left(Eigen::array<int, 4>(6, 50, 3, 31)); |
| Tensor<float, 5, DataLayout> t_right(Eigen::array<int, 5>(3, 31, 7, 20, 1)); |
| Tensor<float, 5, DataLayout> t_result(Eigen::array<int, 5>(6, 50, 7, 20, 1)); |
| |
| t_left.setRandom(); |
| t_right.setRandom(); |
| |
| std::size_t t_left_bytes = t_left.size() * sizeof(float); |
| std::size_t t_right_bytes = t_right.size() * sizeof(float); |
| std::size_t t_result_bytes = t_result.size() * sizeof(float); |
| |
| float* d_t_left; |
| float* d_t_right; |
| float* d_t_result; |
| |
| cudaMalloc((void**)(&d_t_left), t_left_bytes); |
| cudaMalloc((void**)(&d_t_right), t_right_bytes); |
| cudaMalloc((void**)(&d_t_result), t_result_bytes); |
| |
| cudaMemcpy(d_t_left, t_left.data(), t_left_bytes, cudaMemcpyHostToDevice); |
| cudaMemcpy(d_t_right, t_right.data(), t_right_bytes, cudaMemcpyHostToDevice); |
| |
| cudaStream_t stream; |
| assert(cudaStreamCreate(&stream) == cudaSuccess); |
| Eigen::GpuDevice gpu_device(&stream); |
| |
| Eigen::TensorMap<Eigen::Tensor<float, 4, DataLayout> > |
| gpu_t_left(d_t_left, Eigen::array<int, 4>(6, 50, 3, 31)); |
| Eigen::TensorMap<Eigen::Tensor<float, 5, DataLayout> > |
| gpu_t_right(d_t_right, Eigen::array<int, 5>(3, 31, 7, 20, 1)); |
| Eigen::TensorMap<Eigen::Tensor<float, 5, DataLayout> > |
| gpu_t_result(d_t_result, Eigen::array<int, 5>(6, 50, 7, 20, 1)); |
| |
| typedef Eigen::Map<Eigen::Matrix<float, Dynamic, Dynamic, DataLayout> > MapXf; |
| MapXf m_left(t_left.data(), 300, 93); |
| MapXf m_right(t_right.data(), 93, 140); |
| Eigen::Matrix<float, Dynamic, Dynamic, DataLayout> m_result(300, 140); |
| |
| typedef Tensor<float, 1>::DimensionPair DimPair; |
| Eigen::array<DimPair, 2> dims; |
| dims[0] = DimPair(2, 0); |
| dims[1] = DimPair(3, 1); |
| |
| m_result = m_left * m_right; |
| gpu_t_result.device(gpu_device) = gpu_t_left.contract(gpu_t_right, dims); |
| |
| cudaMemcpy(t_result.data(), d_t_result, t_result_bytes, cudaMemcpyDeviceToHost); |
| |
| for (size_t i = 0; i < t_result.dimensions().TotalSize(); i++) { |
| if (fabs(t_result.data()[i] - m_result.data()[i]) >= 1e-4) { |
| cout << "mismatch detected at index " << i << ": " << t_result.data()[i] << " vs " << m_result.data()[i] << endl; |
| assert(false); |
| } |
| } |
| } |
| |
| static void test_cuda_convolution_1d() |
| { |
| Tensor<float, 4> input(Eigen::array<int, 4>(74,37,11,137)); |
| Tensor<float, 1> kernel(Eigen::array<int, 1>(4)); |
| Tensor<float, 4> out(Eigen::array<int, 4>(74,34,11,137)); |
| input = input.constant(10.0f) + input.random(); |
| kernel = kernel.constant(7.0f) + kernel.random(); |
| |
| std::size_t input_bytes = input.size() * sizeof(float); |
| std::size_t kernel_bytes = kernel.size() * sizeof(float); |
| std::size_t out_bytes = out.size() * sizeof(float); |
| |
| float* d_input; |
| float* d_kernel; |
| float* d_out; |
| cudaMalloc((void**)(&d_input), input_bytes); |
| cudaMalloc((void**)(&d_kernel), kernel_bytes); |
| cudaMalloc((void**)(&d_out), out_bytes); |
| |
| cudaMemcpy(d_input, input.data(), input_bytes, cudaMemcpyHostToDevice); |
| cudaMemcpy(d_kernel, kernel.data(), kernel_bytes, cudaMemcpyHostToDevice); |
| |
| cudaStream_t stream; |
| assert(cudaStreamCreate(&stream) == cudaSuccess); |
| Eigen::GpuDevice gpu_device(&stream); |
| |
| Eigen::TensorMap<Eigen::Tensor<float, 4> > gpu_input(d_input, Eigen::array<int, 4>(74,37,11,137)); |
| Eigen::TensorMap<Eigen::Tensor<float, 1> > gpu_kernel(d_kernel, Eigen::array<int, 1>(4)); |
| Eigen::TensorMap<Eigen::Tensor<float, 4> > gpu_out(d_out, Eigen::array<int, 4>(74,34,11,137)); |
| |
| Eigen::array<int, 1> dims(1); |
| gpu_out.device(gpu_device) = gpu_input.convolve(gpu_kernel, dims); |
| |
| assert(cudaMemcpyAsync(out.data(), d_out, out_bytes, cudaMemcpyDeviceToHost, gpu_device.stream()) == cudaSuccess); |
| assert(cudaStreamSynchronize(gpu_device.stream()) == cudaSuccess); |
| |
| for (int i = 0; i < 74; ++i) { |
| for (int j = 0; j < 34; ++j) { |
| for (int k = 0; k < 11; ++k) { |
| for (int l = 0; l < 137; ++l) { |
| const float result = out(Eigen::array<int, 4>(i,j,k,l)); |
| const float expected = input(Eigen::array<int, 4>(i,j+0,k,l)) * kernel(Eigen::array<int, 1>(0)) + |
| input(Eigen::array<int, 4>(i,j+1,k,l)) * kernel(Eigen::array<int, 1>(1)) + |
| input(Eigen::array<int, 4>(i,j+2,k,l)) * kernel(Eigen::array<int, 1>(2)) + |
| input(Eigen::array<int, 4>(i,j+3,k,l)) * kernel(Eigen::array<int, 1>(3)); |
| VERIFY_IS_APPROX(result, expected); |
| } |
| } |
| } |
| } |
| } |
| |
| |
| static void test_cuda_convolution_2d() |
| { |
| Tensor<float, 4> input(Eigen::array<int, 4>(74,37,11,137)); |
| Tensor<float, 2> kernel(Eigen::array<int, 2>(3,4)); |
| Tensor<float, 4> out(Eigen::array<int, 4>(74,35,8,137)); |
| input = input.constant(10.0f) + input.random(); |
| kernel = kernel.constant(7.0f) + kernel.random(); |
| |
| std::size_t input_bytes = input.size() * sizeof(float); |
| std::size_t kernel_bytes = kernel.size() * sizeof(float); |
| std::size_t out_bytes = out.size() * sizeof(float); |
| |
| float* d_input; |
| float* d_kernel; |
| float* d_out; |
| cudaMalloc((void**)(&d_input), input_bytes); |
| cudaMalloc((void**)(&d_kernel), kernel_bytes); |
| cudaMalloc((void**)(&d_out), out_bytes); |
| |
| cudaMemcpy(d_input, input.data(), input_bytes, cudaMemcpyHostToDevice); |
| cudaMemcpy(d_kernel, kernel.data(), kernel_bytes, cudaMemcpyHostToDevice); |
| |
| cudaStream_t stream; |
| assert(cudaStreamCreate(&stream) == cudaSuccess); |
| Eigen::GpuDevice gpu_device(&stream); |
| |
| Eigen::TensorMap<Eigen::Tensor<float, 4> > gpu_input(d_input, Eigen::array<int, 4>(74,37,11,137)); |
| Eigen::TensorMap<Eigen::Tensor<float, 2> > gpu_kernel(d_kernel, Eigen::array<int, 2>(3,4)); |
| Eigen::TensorMap<Eigen::Tensor<float, 4> > gpu_out(d_out, Eigen::array<int, 4>(74,35,8,137)); |
| |
| Eigen::array<int, 2> dims(1,2); |
| gpu_out.device(gpu_device) = gpu_input.convolve(gpu_kernel, dims); |
| |
| assert(cudaMemcpyAsync(out.data(), d_out, out_bytes, cudaMemcpyDeviceToHost, gpu_device.stream()) == cudaSuccess); |
| assert(cudaStreamSynchronize(gpu_device.stream()) == cudaSuccess); |
| |
| for (int i = 0; i < 74; ++i) { |
| for (int j = 0; j < 35; ++j) { |
| for (int k = 0; k < 8; ++k) { |
| for (int l = 0; l < 137; ++l) { |
| const float result = out(Eigen::array<int, 4>(i,j,k,l)); |
| const float expected = input(Eigen::array<int, 4>(i,j+0,k+0,l)) * kernel(Eigen::array<int, 2>(0,0)) + |
| input(Eigen::array<int, 4>(i,j+1,k+0,l)) * kernel(Eigen::array<int, 2>(1,0)) + |
| input(Eigen::array<int, 4>(i,j+2,k+0,l)) * kernel(Eigen::array<int, 2>(2,0)) + |
| input(Eigen::array<int, 4>(i,j+0,k+1,l)) * kernel(Eigen::array<int, 2>(0,1)) + |
| input(Eigen::array<int, 4>(i,j+1,k+1,l)) * kernel(Eigen::array<int, 2>(1,1)) + |
| input(Eigen::array<int, 4>(i,j+2,k+1,l)) * kernel(Eigen::array<int, 2>(2,1)) + |
| input(Eigen::array<int, 4>(i,j+0,k+2,l)) * kernel(Eigen::array<int, 2>(0,2)) + |
| input(Eigen::array<int, 4>(i,j+1,k+2,l)) * kernel(Eigen::array<int, 2>(1,2)) + |
| input(Eigen::array<int, 4>(i,j+2,k+2,l)) * kernel(Eigen::array<int, 2>(2,2)) + |
| input(Eigen::array<int, 4>(i,j+0,k+3,l)) * kernel(Eigen::array<int, 2>(0,3)) + |
| input(Eigen::array<int, 4>(i,j+1,k+3,l)) * kernel(Eigen::array<int, 2>(1,3)) + |
| input(Eigen::array<int, 4>(i,j+2,k+3,l)) * kernel(Eigen::array<int, 2>(2,3)); |
| VERIFY_IS_APPROX(result, expected); |
| } |
| } |
| } |
| } |
| } |
| |
| |
| static void test_cuda_convolution_3d() |
| { |
| Tensor<float, 5> input(Eigen::array<int, 5>(74,37,11,137,17)); |
| Tensor<float, 3> kernel(Eigen::array<int, 3>(3,4,2)); |
| Tensor<float, 5> out(Eigen::array<int, 5>(74,35,8,136,17)); |
| input = input.constant(10.0f) + input.random(); |
| kernel = kernel.constant(7.0f) + kernel.random(); |
| |
| std::size_t input_bytes = input.size() * sizeof(float); |
| std::size_t kernel_bytes = kernel.size() * sizeof(float); |
| std::size_t out_bytes = out.size() * sizeof(float); |
| |
| float* d_input; |
| float* d_kernel; |
| float* d_out; |
| cudaMalloc((void**)(&d_input), input_bytes); |
| cudaMalloc((void**)(&d_kernel), kernel_bytes); |
| cudaMalloc((void**)(&d_out), out_bytes); |
| |
| cudaMemcpy(d_input, input.data(), input_bytes, cudaMemcpyHostToDevice); |
| cudaMemcpy(d_kernel, kernel.data(), kernel_bytes, cudaMemcpyHostToDevice); |
| |
| cudaStream_t stream; |
| assert(cudaStreamCreate(&stream) == cudaSuccess); |
| Eigen::GpuDevice gpu_device(&stream); |
| |
| Eigen::TensorMap<Eigen::Tensor<float, 5> > gpu_input(d_input, Eigen::array<int, 5>(74,37,11,137,17)); |
| Eigen::TensorMap<Eigen::Tensor<float, 3> > gpu_kernel(d_kernel, Eigen::array<int, 3>(3,4,2)); |
| Eigen::TensorMap<Eigen::Tensor<float, 5> > gpu_out(d_out, Eigen::array<int, 5>(74,35,8,136,17)); |
| |
| Eigen::array<int, 3> dims(1,2,3); |
| gpu_out.device(gpu_device) = gpu_input.convolve(gpu_kernel, dims); |
| |
| assert(cudaMemcpyAsync(out.data(), d_out, out_bytes, cudaMemcpyDeviceToHost, gpu_device.stream()) == cudaSuccess); |
| assert(cudaStreamSynchronize(gpu_device.stream()) == cudaSuccess); |
| |
| for (int i = 0; i < 74; ++i) { |
| for (int j = 0; j < 35; ++j) { |
| for (int k = 0; k < 8; ++k) { |
| for (int l = 0; l < 136; ++l) { |
| for (int m = 0; m < 17; ++m) { |
| const float result = out(Eigen::array<int, 5>(i,j,k,l,m)); |
| const float expected = input(Eigen::array<int, 5>(i,j+0,k+0,l+0,m)) * kernel(Eigen::array<int, 3>(0,0,0)) + |
| input(Eigen::array<int, 5>(i,j+1,k+0,l+0,m)) * kernel(Eigen::array<int, 3>(1,0,0)) + |
| input(Eigen::array<int, 5>(i,j+2,k+0,l+0,m)) * kernel(Eigen::array<int, 3>(2,0,0)) + |
| input(Eigen::array<int, 5>(i,j+0,k+1,l+0,m)) * kernel(Eigen::array<int, 3>(0,1,0)) + |
| input(Eigen::array<int, 5>(i,j+1,k+1,l+0,m)) * kernel(Eigen::array<int, 3>(1,1,0)) + |
| input(Eigen::array<int, 5>(i,j+2,k+1,l+0,m)) * kernel(Eigen::array<int, 3>(2,1,0)) + |
| input(Eigen::array<int, 5>(i,j+0,k+2,l+0,m)) * kernel(Eigen::array<int, 3>(0,2,0)) + |
| input(Eigen::array<int, 5>(i,j+1,k+2,l+0,m)) * kernel(Eigen::array<int, 3>(1,2,0)) + |
| input(Eigen::array<int, 5>(i,j+2,k+2,l+0,m)) * kernel(Eigen::array<int, 3>(2,2,0)) + |
| input(Eigen::array<int, 5>(i,j+0,k+3,l+0,m)) * kernel(Eigen::array<int, 3>(0,3,0)) + |
| input(Eigen::array<int, 5>(i,j+1,k+3,l+0,m)) * kernel(Eigen::array<int, 3>(1,3,0)) + |
| input(Eigen::array<int, 5>(i,j+2,k+3,l+0,m)) * kernel(Eigen::array<int, 3>(2,3,0)) + |
| input(Eigen::array<int, 5>(i,j+0,k+0,l+1,m)) * kernel(Eigen::array<int, 3>(0,0,1)) + |
| input(Eigen::array<int, 5>(i,j+1,k+0,l+1,m)) * kernel(Eigen::array<int, 3>(1,0,1)) + |
| input(Eigen::array<int, 5>(i,j+2,k+0,l+1,m)) * kernel(Eigen::array<int, 3>(2,0,1)) + |
| input(Eigen::array<int, 5>(i,j+0,k+1,l+1,m)) * kernel(Eigen::array<int, 3>(0,1,1)) + |
| input(Eigen::array<int, 5>(i,j+1,k+1,l+1,m)) * kernel(Eigen::array<int, 3>(1,1,1)) + |
| input(Eigen::array<int, 5>(i,j+2,k+1,l+1,m)) * kernel(Eigen::array<int, 3>(2,1,1)) + |
| input(Eigen::array<int, 5>(i,j+0,k+2,l+1,m)) * kernel(Eigen::array<int, 3>(0,2,1)) + |
| input(Eigen::array<int, 5>(i,j+1,k+2,l+1,m)) * kernel(Eigen::array<int, 3>(1,2,1)) + |
| input(Eigen::array<int, 5>(i,j+2,k+2,l+1,m)) * kernel(Eigen::array<int, 3>(2,2,1)) + |
| input(Eigen::array<int, 5>(i,j+0,k+3,l+1,m)) * kernel(Eigen::array<int, 3>(0,3,1)) + |
| input(Eigen::array<int, 5>(i,j+1,k+3,l+1,m)) * kernel(Eigen::array<int, 3>(1,3,1)) + |
| input(Eigen::array<int, 5>(i,j+2,k+3,l+1,m)) * kernel(Eigen::array<int, 3>(2,3,1)); |
| VERIFY_IS_APPROX(result, expected); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| static float* CudaCopyFloat(float* data, int size) { |
| const int nbytes = size * sizeof(float); |
| float* result = NULL; |
| if (cudaMalloc((void**)(&result), nbytes) != cudaSuccess) { |
| return NULL; |
| } else { |
| if (data != NULL) { |
| cudaMemcpy(result, data, nbytes, cudaMemcpyHostToDevice); |
| } |
| return result; |
| } |
| } |
| |
| static void test_cuda_constant_broadcast() |
| { |
| cudaStream_t stream; |
| assert(cudaStreamCreate(&stream) == cudaSuccess); |
| Eigen::GpuDevice gpu_device(&stream); |
| |
| Tensor<float, 1> t1(10); |
| for (int i = 0; i < 10; ++i) { |
| t1(i) = 10.0f * i; |
| } |
| float* t1_cuda = CudaCopyFloat(t1.data(), t1.size()); |
| Eigen::TensorMap<Eigen::Tensor<float, 1> > t1_gpu(t1_cuda, 10); |
| |
| Tensor<float, 1> t2(1); |
| t2 = t2.constant(20.0f); |
| float* t2_cuda = CudaCopyFloat(t2.data(), t2.size()); |
| Eigen::TensorMap<Eigen::TensorFixedSize<float, Sizes<1> > > t2_gpu(t2_cuda, 1); |
| |
| float* t3_cuda = CudaCopyFloat(NULL, 10); |
| Eigen::TensorMap<Eigen::Tensor<float, 1> > t3_gpu(t3_cuda, 10); |
| |
| t3_gpu.device(gpu_device) = |
| t1_gpu + t2_gpu.broadcast(Eigen::array<int, 1>(10)); |
| |
| Eigen::Tensor<float, 1> t3(10); |
| cudaMemcpy(t3.data(), t3_gpu.data(), 10 * sizeof(float), |
| cudaMemcpyDeviceToHost); |
| |
| for (int i = 0; i < 10; ++i) { |
| VERIFY_IS_APPROX(t3(i), t1(i) + t2(0)); |
| } |
| } |
| |
| |
| void test_cuda_cast() |
| { |
| Tensor<double, 3> in(Eigen::array<int, 3>(72,53,97)); |
| Tensor<float, 3> out(Eigen::array<int, 3>(72,53,97)); |
| in.setRandom(); |
| |
| std::size_t in_bytes = in.size() * sizeof(double); |
| std::size_t out_bytes = out.size() * sizeof(float); |
| |
| double* d_in; |
| float* d_out; |
| cudaMalloc((void**)(&d_in), in_bytes); |
| cudaMalloc((void**)(&d_out), out_bytes); |
| |
| cudaMemcpy(d_in, in.data(), in_bytes, cudaMemcpyHostToDevice); |
| |
| cudaStream_t stream; |
| assert(cudaStreamCreate(&stream) == cudaSuccess); |
| Eigen::GpuDevice gpu_device(&stream); |
| |
| Eigen::TensorMap<Eigen::Tensor<double, 3> > gpu_in(d_in, Eigen::array<int, 3>(72,53,97)); |
| Eigen::TensorMap<Eigen::Tensor<float, 3> > gpu_out(d_out, Eigen::array<int, 3>(72,53,97)); |
| |
| gpu_out.device(gpu_device) = gpu_in.template cast<float>(); |
| |
| assert(cudaMemcpyAsync(out.data(), d_out, out_bytes, cudaMemcpyDeviceToHost, gpu_device.stream()) == cudaSuccess); |
| assert(cudaStreamSynchronize(gpu_device.stream()) == cudaSuccess); |
| |
| for (int i = 0; i < 72; ++i) { |
| for (int j = 0; j < 53; ++j) { |
| for (int k = 0; k < 97; ++k) { |
| VERIFY_IS_APPROX(out(Eigen::array<int, 3>(i,j,k)), static_cast<float>(in(Eigen::array<int, 3>(i,j,k)))); |
| } |
| } |
| } |
| } |
| |
| |
| void test_cxx11_tensor_cuda() |
| { |
| CALL_SUBTEST(test_cuda_elementwise_small()); |
| CALL_SUBTEST(test_cuda_elementwise()); |
| CALL_SUBTEST(test_cuda_reduction()); |
| CALL_SUBTEST(test_cuda_contraction<ColMajor>()); |
| CALL_SUBTEST(test_cuda_contraction<RowMajor>()); |
| CALL_SUBTEST(test_cuda_convolution_1d()); |
| CALL_SUBTEST(test_cuda_convolution_2d()); |
| CALL_SUBTEST(test_cuda_convolution_3d()); |
| CALL_SUBTEST(test_cuda_constant_broadcast()); |
| CALL_SUBTEST(test_cuda_cast()); |
| } |
