| // |
| // Copyright (c) 2000-2002 |
| // Joerg Walter, Mathias Koch |
| // |
| // Distributed under the Boost Software License, Version 1.0. (See |
| // accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| // |
| // The authors gratefully acknowledge the support of |
| // GeNeSys mbH & Co. KG in producing this work. |
| // |
| |
| #include "bench3.hpp" |
| |
| template<class T, int N> |
| struct bench_c_matrix_prod { |
| typedef T value_type; |
| |
| void operator () (int runs) const { |
| try { |
| static typename c_matrix_traits<T, N, N>::type m1, m2, m3; |
| initialize_c_matrix<T, N, N> () (m1); |
| initialize_c_matrix<T, N, N> () (m2); |
| boost::timer t; |
| for (int i = 0; i < runs; ++ i) { |
| for (int j = 0; j < N; ++ j) { |
| for (int k = 0; k < N; ++ k) { |
| m3 [j] [k] = 0; |
| for (int l = 0; l < N; ++ l) { |
| m3 [j] [k] += m1 [j] [l] * m2 [l] [k]; |
| } |
| } |
| } |
| // sink_c_matrix<T, N, N> () (m3); |
| } |
| footer<value_type> () (N * N * N, N * N * (N - 1), runs, t.elapsed ()); |
| } |
| catch (std::exception &e) { |
| std::cout << e.what () << std::endl; |
| } |
| } |
| }; |
| template<class M, int N> |
| struct bench_my_matrix_prod { |
| typedef typename M::value_type value_type; |
| |
| void operator () (int runs, safe_tag) const { |
| try { |
| static M m1 (N, N), m2 (N, N), m3 (N, N); |
| ublas::matrix_range<M> mr1 (m1, ublas::range (0, N), ublas::range (0, N)), |
| mr2 (m2, ublas::range (0, N), ublas::range (0, N)), |
| mr3 (m3, ublas::range (0, N), ublas::range (0, N)); |
| initialize_matrix (mr1); |
| initialize_matrix (mr2); |
| boost::timer t; |
| for (int i = 0; i < runs; ++ i) { |
| mr3 = ublas::prod (mr1, mr2); |
| // sink_matrix (mr3); |
| } |
| footer<value_type> () (N * N * N, N * N * (N - 1), runs, t.elapsed ()); |
| } |
| catch (std::exception &e) { |
| std::cout << e.what () << std::endl; |
| } |
| } |
| void operator () (int runs, fast_tag) const { |
| try { |
| static M m1 (N, N), m2 (N, N), m3 (N, N); |
| ublas::matrix_range<M> mr1 (m1, ublas::range (0, N), ublas::range (0, N)), |
| mr2 (m2, ublas::range (0, N), ublas::range (0, N)), |
| mr3 (m3, ublas::range (0, N), ublas::range (0, N)); |
| initialize_matrix (mr1); |
| initialize_matrix (mr2); |
| boost::timer t; |
| for (int i = 0; i < runs; ++ i) { |
| mr3.assign (ublas::prod (mr1, mr2)); |
| // sink_matrix (mr3); |
| } |
| footer<value_type> () (N * N * N, N * N * (N - 1), runs, t.elapsed ()); |
| } |
| catch (std::exception &e) { |
| std::cout << e.what () << std::endl; |
| } |
| } |
| }; |
| template<class M, int N> |
| struct bench_cpp_matrix_prod { |
| typedef typename M::value_type value_type; |
| |
| void operator () (int runs) const { |
| try { |
| static M m1 (N * N), m2 (N * N), m3 (N * N); |
| initialize_vector (m1); |
| initialize_vector (m2); |
| boost::timer t; |
| for (int i = 0; i < runs; ++ i) { |
| for (int j = 0; j < N; ++ j) { |
| std::valarray<value_type> row (m1 [std::slice (N * j, N, 1)]); |
| for (int k = 0; k < N; ++ k) { |
| std::valarray<value_type> column (m2 [std::slice (k, N, N)]); |
| m3 [N * j + k] = (row * column).sum (); |
| } |
| } |
| // sink_vector (m3); |
| } |
| footer<value_type> () (N * N * N, N * N * (N - 1), runs, t.elapsed ()); |
| } |
| catch (std::exception &e) { |
| std::cout << e.what () << std::endl; |
| } |
| } |
| }; |
| |
| // Benchmark O (n ^ 3) |
| template<class T, int N> |
| void bench_3<T, N>::operator () (int runs) { |
| header ("bench_3"); |
| |
| header ("prod (matrix, matrix)"); |
| |
| header ("C array"); |
| bench_c_matrix_prod<T, N> () (runs); |
| |
| #ifdef USE_C_ARRAY |
| header ("c_matrix safe"); |
| bench_my_matrix_prod<ublas::c_matrix<T, N, N>, N> () (runs, safe_tag ()); |
| |
| header ("c_matrix fast"); |
| bench_my_matrix_prod<ublas::c_matrix<T, N, N>, N> () (runs, fast_tag ()); |
| #endif |
| |
| #ifdef USE_BOUNDED_ARRAY |
| header ("matrix<bounded_array> safe"); |
| bench_my_matrix_prod<ublas::matrix<T, ublas::row_major, ublas::bounded_array<T, N * N> >, N> () (runs, safe_tag ()); |
| |
| header ("matrix<bounded_array> fast"); |
| bench_my_matrix_prod<ublas::matrix<T, ublas::row_major, ublas::bounded_array<T, N * N> >, N> () (runs, fast_tag ()); |
| #endif |
| |
| #ifdef USE_UNBOUNDED_ARRAY |
| header ("matrix<unbounded_array> safe"); |
| bench_my_matrix_prod<ublas::matrix<T, ublas::row_major, ublas::unbounded_array<T> >, N> () (runs, safe_tag ()); |
| |
| header ("matrix<unbounded_array> fast"); |
| bench_my_matrix_prod<ublas::matrix<T, ublas::row_major, ublas::unbounded_array<T> >, N> () (runs, fast_tag ()); |
| #endif |
| |
| #ifdef USE_STD_VALARRAY |
| header ("matrix<std::valarray> safe"); |
| bench_my_matrix_prod<ublas::matrix<T, ublas::row_major, std::valarray<T> >, N> () (runs, safe_tag ()); |
| |
| header ("matrix<std::valarray> fast"); |
| bench_my_matrix_prod<ublas::matrix<T, ublas::row_major, std::valarray<T> >, N> () (runs, fast_tag ()); |
| #endif |
| |
| #ifdef USE_STD_VECTOR |
| header ("matrix<std::vector> safe"); |
| bench_my_matrix_prod<ublas::matrix<T, ublas::row_major, std::vector<T> >, N> () (runs, safe_tag ()); |
| |
| header ("matrix<std::vector> fast"); |
| bench_my_matrix_prod<ublas::matrix<T, ublas::row_major, std::vector<T> >, N> () (runs, fast_tag ()); |
| #endif |
| |
| #ifdef USE_STD_VALARRAY |
| header ("std::valarray"); |
| bench_cpp_matrix_prod<std::valarray<T>, N> () (runs); |
| #endif |
| } |
| |
| #ifdef USE_FLOAT |
| template struct bench_3<float, 3>; |
| template struct bench_3<float, 10>; |
| template struct bench_3<float, 30>; |
| template struct bench_3<float, 100>; |
| #endif |
| |
| #ifdef USE_DOUBLE |
| template struct bench_3<double, 3>; |
| template struct bench_3<double, 10>; |
| template struct bench_3<double, 30>; |
| template struct bench_3<double, 100>; |
| #endif |
| |
| #ifdef USE_STD_COMPLEX |
| #ifdef USE_FLOAT |
| template struct bench_3<std::complex<float>, 3>; |
| template struct bench_3<std::complex<float>, 10>; |
| template struct bench_3<std::complex<float>, 30>; |
| template struct bench_3<std::complex<float>, 100>; |
| #endif |
| |
| #ifdef USE_DOUBLE |
| template struct bench_3<std::complex<double>, 3>; |
| template struct bench_3<std::complex<double>, 10>; |
| template struct bench_3<std::complex<double>, 30>; |
| template struct bench_3<std::complex<double>, 100>; |
| #endif |
| #endif |