| // |
| // 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_inner_prod { |
| typedef T value_type; |
| |
| void operator () (int runs) const { |
| try { |
| static typename c_vector_traits<T, N>::type v1, v2; |
| initialize_c_vector<T, N> () (v1); |
| initialize_c_vector<T, N> () (v2); |
| boost::timer t; |
| for (int i = 0; i < runs; ++ i) { |
| static value_type s (0); |
| for (int j = 0; j < N; ++ j) { |
| s += v1 [j] * v2 [j]; |
| } |
| // sink_scalar (s); |
| } |
| footer<value_type> () (N, N - 1, runs, t.elapsed ()); |
| } |
| catch (std::exception &e) { |
| std::cout << e.what () << std::endl; |
| } |
| } |
| }; |
| template<class V, int N> |
| struct bench_my_inner_prod { |
| typedef typename V::value_type value_type; |
| |
| void operator () (int runs) const { |
| try { |
| static V v1 (N), v2 (N); |
| initialize_vector (v1); |
| initialize_vector (v2); |
| boost::timer t; |
| for (int i = 0; i < runs; ++ i) { |
| static value_type s (0); |
| s = ublas::inner_prod (v1, v2); |
| // sink_scalar (s); |
| } |
| footer<value_type> () (N, N - 1, runs, t.elapsed ()); |
| } |
| catch (std::exception &e) { |
| std::cout << e.what () << std::endl; |
| } |
| } |
| }; |
| template<class V, int N> |
| struct bench_cpp_inner_prod { |
| typedef typename V::value_type value_type; |
| |
| void operator () (int runs) const { |
| try { |
| static V v1 (N), v2 (N); |
| initialize_vector (v1); |
| initialize_vector (v2); |
| boost::timer t; |
| for (int i = 0; i < runs; ++ i) { |
| static value_type s (0); |
| s = (v1 * v2).sum (); |
| // sink_scalar (s); |
| } |
| footer<value_type> () (N, N - 1, runs, t.elapsed ()); |
| } |
| catch (std::exception &e) { |
| std::cout << e.what () << std::endl; |
| } |
| } |
| }; |
| |
| template<class T, int N> |
| struct bench_c_vector_add { |
| typedef T value_type; |
| |
| void operator () (int runs) const { |
| try { |
| static typename c_vector_traits<T, N>::type v1, v2, v3; |
| initialize_c_vector<T, N> () (v1); |
| initialize_c_vector<T, N> () (v2); |
| boost::timer t; |
| for (int i = 0; i < runs; ++ i) { |
| for (int j = 0; j < N; ++ j) { |
| v3 [j] = - (v1 [j] + v2 [j]); |
| } |
| // sink_c_vector<T, N> () (v3); |
| } |
| footer<value_type> () (0, 2 * N, runs, t.elapsed ()); |
| } |
| catch (std::exception &e) { |
| std::cout << e.what () << std::endl; |
| } |
| } |
| }; |
| template<class V, int N> |
| struct bench_my_vector_add { |
| typedef typename V::value_type value_type; |
| |
| void operator () (int runs, safe_tag) const { |
| try { |
| static V v1 (N), v2 (N), v3 (N); |
| initialize_vector (v1); |
| initialize_vector (v2); |
| boost::timer t; |
| for (int i = 0; i < runs; ++ i) { |
| v3 = - (v1 + v2); |
| // sink_vector (v3); |
| } |
| footer<value_type> () (0, 2 * N, runs, t.elapsed ()); |
| } |
| catch (std::exception &e) { |
| std::cout << e.what () << std::endl; |
| } |
| } |
| void operator () (int runs, fast_tag) const { |
| try { |
| static V v1 (N), v2 (N), v3 (N); |
| initialize_vector (v1); |
| initialize_vector (v2); |
| boost::timer t; |
| for (int i = 0; i < runs; ++ i) { |
| v3.assign (- (v1 + v2)); |
| // sink_vector (v3); |
| } |
| footer<value_type> () (0, 2 * N, runs, t.elapsed ()); |
| } |
| catch (std::exception &e) { |
| std::cout << e.what () << std::endl; |
| } |
| } |
| }; |
| template<class V, int N> |
| struct bench_cpp_vector_add { |
| typedef typename V::value_type value_type; |
| |
| void operator () (int runs) const { |
| try { |
| static V v1 (N), v2 (N), v3 (N); |
| initialize_vector (v1); |
| initialize_vector (v2); |
| boost::timer t; |
| for (int i = 0; i < runs; ++ i) { |
| v3 = - (v1 + v2); |
| // sink_vector (v3); |
| } |
| footer<value_type> () (0, 2 * N, runs, t.elapsed ()); |
| } |
| catch (std::exception &e) { |
| std::cout << e.what () << std::endl; |
| } |
| } |
| }; |
| |
| // Benchmark O (n) |
| template<class T, int N> |
| void bench_1<T, N>::operator () (int runs) { |
| header ("bench_1"); |
| |
| header ("inner_prod"); |
| |
| header ("C array"); |
| bench_c_inner_prod<T, N> () (runs); |
| |
| #ifdef USE_C_ARRAY |
| header ("c_vector"); |
| bench_my_inner_prod<ublas::c_vector<T, N>, N> () (runs); |
| #endif |
| |
| #ifdef USE_BOUNDED_ARRAY |
| header ("vector<bounded_array>"); |
| bench_my_inner_prod<ublas::vector<T, ublas::bounded_array<T, N> >, N> () (runs); |
| #endif |
| |
| #ifdef USE_UNBOUNDED_ARRAY |
| header ("vector<unbounded_array>"); |
| bench_my_inner_prod<ublas::vector<T, ublas::unbounded_array<T> >, N> () (runs); |
| #endif |
| |
| #ifdef USE_STD_VALARRAY |
| header ("vector<std::valarray>"); |
| bench_my_inner_prod<ublas::vector<T, std::valarray<T> >, N> () (); |
| #endif |
| |
| #ifdef USE_STD_VECTOR |
| header ("vector<std::vector>"); |
| bench_my_inner_prod<ublas::vector<T, std::vector<T> >, N> () (runs); |
| #endif |
| |
| #ifdef USE_STD_VALARRAY |
| header ("std::valarray"); |
| bench_cpp_inner_prod<std::valarray<T>, N> () (runs); |
| #endif |
| |
| header ("vector + vector"); |
| |
| header ("C array"); |
| bench_c_vector_add<T, N> () (runs); |
| |
| #ifdef USE_C_ARRAY |
| header ("c_vector safe"); |
| bench_my_vector_add<ublas::c_vector<T, N>, N> () (runs, safe_tag ()); |
| |
| header ("c_vector fast"); |
| bench_my_vector_add<ublas::c_vector<T, N>, N> () (runs, fast_tag ()); |
| #endif |
| |
| #ifdef USE_BOUNDED_ARRAY |
| header ("vector<bounded_array> safe"); |
| bench_my_vector_add<ublas::vector<T, ublas::bounded_array<T, N> >, N> () (runs, safe_tag ()); |
| |
| header ("vector<bounded_array> fast"); |
| bench_my_vector_add<ublas::vector<T, ublas::bounded_array<T, N> >, N> () (runs, fast_tag ()); |
| #endif |
| |
| #ifdef USE_UNBOUNDED_ARRAY |
| header ("vector<unbounded_array> safe"); |
| bench_my_vector_add<ublas::vector<T, ublas::unbounded_array<T> >, N> () (runs, safe_tag ()); |
| |
| header ("vector<unbounded_array> fast"); |
| bench_my_vector_add<ublas::vector<T, ublas::unbounded_array<T> >, N> () (runs, fast_tag ()); |
| #endif |
| |
| #ifdef USE_STD_VALARRAY |
| header ("vector<std::valarray> safe"); |
| bench_my_vector_add<ublas::vector<T, std::valarray<T> >, N> () (runs, safe_tag ()); |
| |
| header ("vector<std::valarray> fast"); |
| bench_my_vector_add<ublas::vector<T, std::valarray<T> >, N> () (runs, fast_tag ()); |
| #endif |
| |
| #ifdef USE_STD_VECTOR |
| header ("vector<std::vector> safe"); |
| bench_my_vector_add<ublas::vector<T, std::vector<T> >, N> () (runs, safe_tag ()); |
| |
| header ("vector<std::vector> fast"); |
| bench_my_vector_add<ublas::vector<T, std::vector<T> >, N> () (runs, fast_tag ()); |
| #endif |
| |
| #ifdef USE_STD_VALARRAY |
| header ("std::valarray"); |
| bench_cpp_vector_add<std::valarray<T>, N> () (runs); |
| #endif |
| } |
| |
| #ifdef USE_FLOAT |
| template struct bench_1<float, 3>; |
| template struct bench_1<float, 10>; |
| template struct bench_1<float, 30>; |
| template struct bench_1<float, 100>; |
| #endif |
| |
| #ifdef USE_DOUBLE |
| template struct bench_1<double, 3>; |
| template struct bench_1<double, 10>; |
| template struct bench_1<double, 30>; |
| template struct bench_1<double, 100>; |
| #endif |
| |
| #ifdef USE_STD_COMPLEX |
| #ifdef USE_FLOAT |
| template struct bench_1<std::complex<float>, 3>; |
| template struct bench_1<std::complex<float>, 10>; |
| template struct bench_1<std::complex<float>, 30>; |
| template struct bench_1<std::complex<float>, 100>; |
| #endif |
| |
| #ifdef USE_DOUBLE |
| template struct bench_1<std::complex<double>, 3>; |
| template struct bench_1<std::complex<double>, 10>; |
| template struct bench_1<std::complex<double>, 30>; |
| template struct bench_1<std::complex<double>, 100>; |
| #endif |
| #endif |