diff options
Diffstat (limited to 'unsupported/test/cxx11_tensor_contraction.cpp')
| -rw-r--r-- | unsupported/test/cxx11_tensor_contraction.cpp | 120 |
1 files changed, 88 insertions, 32 deletions
diff --git a/unsupported/test/cxx11_tensor_contraction.cpp b/unsupported/test/cxx11_tensor_contraction.cpp index ace97057f..3b5c6a13c 100644 --- a/unsupported/test/cxx11_tensor_contraction.cpp +++ b/unsupported/test/cxx11_tensor_contraction.cpp @@ -471,7 +471,8 @@ static void test_tensor_product() mat1.setRandom(); mat2.setRandom(); - Tensor<float, 4, DataLayout> result = mat1.contract(mat2, Eigen::array<DimPair, 0>{{}}); + Eigen::array<DimPair, 0> dims; + Tensor<float, 4, DataLayout> result = mat1.contract(mat2, dims); VERIFY_IS_EQUAL(result.dimension(0), 2); VERIFY_IS_EQUAL(result.dimension(1), 3); @@ -510,36 +511,91 @@ static void test_const_inputs() VERIFY_IS_APPROX(mat3(1,1), mat1(1,0)*mat2(0,1) + mat1(1,1)*mat2(1,1) + mat1(1,2)*mat2(2,1)); } -void test_cxx11_tensor_contraction() +// Apply Sqrt to all output elements. +struct SqrtOutputKernel { + template <typename Index, typename Scalar> + EIGEN_ALWAYS_INLINE void operator()( + const internal::blas_data_mapper<Scalar, Index, ColMajor>& output_mapper, + const TensorContractionParams&, Index, Index, Index num_rows, + Index num_cols) const { + for (int i = 0; i < num_rows; ++i) { + for (int j = 0; j < num_cols; ++j) { + output_mapper(i, j) = std::sqrt(output_mapper(i, j)); + } + } + } +}; + +template <int DataLayout> +static void test_large_contraction_with_output_kernel() { + Tensor<float, 4, DataLayout> t_left(30, 50, 8, 31); + Tensor<float, 5, DataLayout> t_right(8, 31, 7, 20, 10); + Tensor<float, 5, DataLayout> t_result(30, 50, 7, 20, 10); + + t_left.setRandom(); + t_right.setRandom(); + // Put trash in mat4 to verify contraction clears output memory. + t_result.setRandom(); + + // Add a little offset so that the results won't be close to zero. + t_left += t_left.constant(1.0f); + t_right += t_right.constant(1.0f); + + typedef Map<Eigen::Matrix<float, Dynamic, Dynamic, DataLayout>> MapXf; + MapXf m_left(t_left.data(), 1500, 248); + MapXf m_right(t_right.data(), 248, 1400); + Eigen::Matrix<float, Dynamic, Dynamic, DataLayout> m_result(1500, 1400); + + // this contraction should be equivalent to a single matrix multiplication + Eigen::array<DimPair, 2> dims({{DimPair(2, 0), DimPair(3, 1)}}); + + // compute results by separate methods + t_result = t_left.contract(t_right, dims, SqrtOutputKernel()); + + m_result = m_left * m_right; + + for (std::ptrdiff_t i = 0; i < t_result.dimensions().TotalSize(); i++) { + VERIFY(&t_result.data()[i] != &m_result.data()[i]); + VERIFY_IS_APPROX(t_result.data()[i], std::sqrt(m_result.data()[i])); + } +} + +EIGEN_DECLARE_TEST(cxx11_tensor_contraction) { - CALL_SUBTEST(test_evals<ColMajor>()); - CALL_SUBTEST(test_evals<RowMajor>()); - CALL_SUBTEST(test_scalar<ColMajor>()); - CALL_SUBTEST(test_scalar<RowMajor>()); - CALL_SUBTEST(test_multidims<ColMajor>()); - CALL_SUBTEST(test_multidims<RowMajor>()); - CALL_SUBTEST(test_holes<ColMajor>()); - CALL_SUBTEST(test_holes<RowMajor>()); - CALL_SUBTEST(test_full_redux<ColMajor>()); - CALL_SUBTEST(test_full_redux<RowMajor>()); - CALL_SUBTEST(test_contraction_of_contraction<ColMajor>()); - CALL_SUBTEST(test_contraction_of_contraction<RowMajor>()); - CALL_SUBTEST(test_expr<ColMajor>()); - CALL_SUBTEST(test_expr<RowMajor>()); - CALL_SUBTEST(test_out_of_order_contraction<ColMajor>()); - CALL_SUBTEST(test_out_of_order_contraction<RowMajor>()); - CALL_SUBTEST(test_consistency<ColMajor>()); - CALL_SUBTEST(test_consistency<RowMajor>()); - CALL_SUBTEST(test_large_contraction<ColMajor>()); - CALL_SUBTEST(test_large_contraction<RowMajor>()); - CALL_SUBTEST(test_matrix_vector<ColMajor>()); - CALL_SUBTEST(test_matrix_vector<RowMajor>()); - CALL_SUBTEST(test_tensor_vector<ColMajor>()); - CALL_SUBTEST(test_tensor_vector<RowMajor>()); - CALL_SUBTEST(test_small_blocking_factors<ColMajor>()); - CALL_SUBTEST(test_small_blocking_factors<RowMajor>()); - CALL_SUBTEST(test_tensor_product<ColMajor>()); - CALL_SUBTEST(test_tensor_product<RowMajor>()); - CALL_SUBTEST(test_const_inputs<ColMajor>()); - CALL_SUBTEST(test_const_inputs<RowMajor>()); + CALL_SUBTEST_1(test_evals<ColMajor>()); + CALL_SUBTEST_1(test_evals<RowMajor>()); + CALL_SUBTEST_1(test_scalar<ColMajor>()); + CALL_SUBTEST_1(test_scalar<RowMajor>()); + CALL_SUBTEST_2(test_multidims<ColMajor>()); + CALL_SUBTEST_2(test_multidims<RowMajor>()); + CALL_SUBTEST_2(test_holes<ColMajor>()); + CALL_SUBTEST_2(test_holes<RowMajor>()); + CALL_SUBTEST_3(test_full_redux<ColMajor>()); + CALL_SUBTEST_3(test_full_redux<RowMajor>()); + CALL_SUBTEST_3(test_contraction_of_contraction<ColMajor>()); + CALL_SUBTEST_3(test_contraction_of_contraction<RowMajor>()); + CALL_SUBTEST_4(test_expr<ColMajor>()); + CALL_SUBTEST_4(test_expr<RowMajor>()); + CALL_SUBTEST_4(test_out_of_order_contraction<ColMajor>()); + CALL_SUBTEST_4(test_out_of_order_contraction<RowMajor>()); + CALL_SUBTEST_5(test_consistency<ColMajor>()); + CALL_SUBTEST_5(test_consistency<RowMajor>()); + CALL_SUBTEST_5(test_large_contraction<ColMajor>()); + CALL_SUBTEST_5(test_large_contraction<RowMajor>()); + CALL_SUBTEST_6(test_matrix_vector<ColMajor>()); + CALL_SUBTEST_6(test_matrix_vector<RowMajor>()); + CALL_SUBTEST_6(test_tensor_vector<ColMajor>()); + CALL_SUBTEST_6(test_tensor_vector<RowMajor>()); + CALL_SUBTEST_7(test_small_blocking_factors<ColMajor>()); + CALL_SUBTEST_7(test_small_blocking_factors<RowMajor>()); + CALL_SUBTEST_7(test_tensor_product<ColMajor>()); + CALL_SUBTEST_7(test_tensor_product<RowMajor>()); + CALL_SUBTEST_8(test_const_inputs<ColMajor>()); + CALL_SUBTEST_8(test_const_inputs<RowMajor>()); + CALL_SUBTEST_8(test_large_contraction_with_output_kernel<ColMajor>()); + CALL_SUBTEST_8(test_large_contraction_with_output_kernel<RowMajor>()); + + // Force CMake to split this test. + // EIGEN_SUFFIXES;1;2;3;4;5;6;7;8 + } |