2 // Copyright (c) 2000-2002
3 // Joerg Walter, Mathias Koch
5 // Distributed under the Boost Software License, Version 1.0. (See
6 // accompanying file LICENSE_1_0.txt or copy at
7 // http://www.boost.org/LICENSE_1_0.txt)
9 // The authors gratefully acknowledge the support of
10 // GeNeSys mbH & Co. KG in producing this work.
15 template<class T, int N>
16 struct bench_c_matrix_prod {
19 void operator () (int runs) const {
21 static typename c_matrix_traits<T, N, N>::type m1, m2, m3;
22 initialize_c_matrix<T, N, N> () (m1);
23 initialize_c_matrix<T, N, N> () (m2);
25 for (int i = 0; i < runs; ++ i) {
26 for (int j = 0; j < N; ++ j) {
27 for (int k = 0; k < N; ++ k) {
29 for (int l = 0; l < N; ++ l) {
30 m3 [j] [k] += m1 [j] [l] * m2 [l] [k];
34 // sink_c_matrix<T, N, N> () (m3);
36 footer<value_type> () (N * N * N, N * N * (N - 1), runs, t.elapsed ());
38 catch (std::exception &e) {
39 std::cout << e.what () << std::endl;
43 template<class M1, class M2, int N>
44 struct bench_my_matrix_prod {
45 typedef typename M1::value_type value_type;
47 void operator () (int runs, safe_tag) const {
49 static M1 m1 (N, N, N * N), m3 (N, N, N * N);
50 static M2 m2 (N, N, N * N);
51 initialize_matrix (m1);
52 initialize_matrix (m2);
54 for (int i = 0; i < runs; ++ i) {
55 m3 = ublas::prod (m1, m2);
58 footer<value_type> () (N * N * N, N * N * (N - 1), runs, t.elapsed ());
60 catch (std::exception &e) {
61 std::cout << e.what () << std::endl;
64 void operator () (int runs, fast_tag) const {
66 static M1 m1 (N, N, N * N), m3 (N, N, N * N);
67 static M2 m2 (N, N, N * N);
68 initialize_matrix (m1);
69 initialize_matrix (m2);
71 for (int i = 0; i < runs; ++ i) {
72 m3.assign (ublas::prod (m1, m2));
75 footer<value_type> () (N * N * N, N * N * (N - 1), runs, t.elapsed ());
77 catch (std::exception &e) {
78 std::cout << e.what () << std::endl;
82 template<class M, int N>
83 struct bench_cpp_matrix_prod {
84 typedef typename M::value_type value_type;
86 void operator () (int runs) const {
88 static M m1 (N * N), m2 (N * N), m3 (N * N);
89 initialize_vector (m1);
90 initialize_vector (m2);
92 for (int i = 0; i < runs; ++ i) {
93 for (int j = 0; j < N; ++ j) {
94 std::valarray<value_type> row (m1 [std::slice (N * j, N, 1)]);
95 for (int k = 0; k < N; ++ k) {
96 std::valarray<value_type> column (m2 [std::slice (k, N, N)]);
97 m3 [N * j + k] = (row * column).sum ();
102 footer<value_type> () (N * N * N, N * N * (N - 1), runs, t.elapsed ());
104 catch (std::exception &e) {
105 std::cout << e.what () << std::endl;
110 // Benchmark O (n ^ 3)
111 template<class T, int N>
112 void bench_3<T, N>::operator () (int runs) {
115 header ("prod (matrix, matrix)");
118 bench_c_matrix_prod<T, N> () (runs);
120 #ifdef USE_SPARSE_MATRIX
122 header ("sparse_matrix<row_major, map_array>, sparse_matrix<column_major, map_array> safe");
123 bench_my_matrix_prod<ublas::sparse_matrix<T, ublas::row_major, ublas::map_array<std::size_t, T> >,
124 ublas::sparse_matrix<T, ublas::column_major, ublas::map_array<std::size_t, T> >, N> () (runs, safe_tag ());
126 header ("sparse_matrix<row_major, map_array>, sparse_matrix<column_major, map_array> fast");
127 bench_my_matrix_prod<ublas::sparse_matrix<T, ublas::row_major, ublas::map_array<std::size_t, T> >,
128 ublas::sparse_matrix<T, ublas::column_major, ublas::map_array<std::size_t, T> >, N> () (runs, fast_tag ());
132 header ("sparse_matrix<row_major, std::map>, sparse_matrix<column_major, std::map> safe");
133 bench_my_matrix_prod<ublas::sparse_matrix<T, ublas::row_major, std::map<std::size_t, T> >,
134 ublas::sparse_matrix<T, ublas::column_major, std::map<std::size_t, T> >, N> () (runs, safe_tag ());
136 header ("sparse_matrix<row_major, std::map>, sparse_matrix<column_major, std::map> fast");
137 bench_my_matrix_prod<ublas::sparse_matrix<T, ublas::row_major, std::map<std::size_t, T> >,
138 ublas::sparse_matrix<T, ublas::column_major, std::map<std::size_t, T> >, N> () (runs, fast_tag ());
142 #ifdef USE_COMPRESSED_MATRIX
143 header ("compressed_matrix<row_major>, compressed_matrix<column_major> safe");
144 bench_my_matrix_prod<ublas::compressed_matrix<T, ublas::row_major>,
145 ublas::compressed_matrix<T, ublas::column_major>, N> () (runs, safe_tag ());
147 header ("compressed_matrix<row_major>, compressed_matrix<column_major> fast");
148 bench_my_matrix_prod<ublas::compressed_matrix<T, ublas::row_major>,
149 ublas::compressed_matrix<T, ublas::column_major>, N> () (runs, fast_tag ());
152 #ifdef USE_COORDINATE_MATRIX
153 header ("coordinate_matrix<row_major>, coordinate_matrix<column_major> safe");
154 bench_my_matrix_prod<ublas::coordinate_matrix<T, ublas::row_major>,
155 ublas::coordinate_matrix<T, ublas::column_major>, N> () (runs, safe_tag ());
157 header ("coordinate_matrix<row_major>, coordinate_matrix<column_major> fast");
158 bench_my_matrix_prod<ublas::coordinate_matrix<T, ublas::row_major>,
159 ublas::coordinate_matrix<T, ublas::column_major>, N> () (runs, fast_tag ());
162 #ifdef USE_STD_VALARRAY
163 header ("std::valarray");
164 bench_cpp_matrix_prod<std::valarray<T>, N> () (runs);
169 template struct bench_3<float, 3>;
170 template struct bench_3<float, 10>;
171 template struct bench_3<float, 30>;
172 template struct bench_3<float, 100>;
176 template struct bench_3<double, 3>;
177 template struct bench_3<double, 10>;
178 template struct bench_3<double, 30>;
179 template struct bench_3<double, 100>;
182 #ifdef USE_STD_COMPLEX
184 template struct bench_3<std::complex<float>, 3>;
185 template struct bench_3<std::complex<float>, 10>;
186 template struct bench_3<std::complex<float>, 30>;
187 template struct bench_3<std::complex<float>, 100>;
191 template struct bench_3<std::complex<double>, 3>;
192 template struct bench_3<std::complex<double>, 10>;
193 template struct bench_3<std::complex<double>, 30>;
194 template struct bench_3<std::complex<double>, 100>;