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//
// 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 "bench1.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);
initialize_matrix (m1);
initialize_matrix (m2);
boost::timer t;
for (int i = 0; i < runs; ++ i) {
m3 = ublas::prod (m1, m2);
// sink_matrix (m3);
}
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);
initialize_matrix (m1);
initialize_matrix (m2);
boost::timer t;
for (int i = 0; i < runs; ++ i) {
m3.assign (ublas::prod (m1, m2));
// sink_matrix (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_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
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