| //===================================================== |
| // File : bench.hh |
| // Author : L. Plagne <laurent.plagne@edf.fr)> |
| // Copyright (C) EDF R&D, lun sep 30 14:23:16 CEST 2002 |
| //===================================================== |
| // |
| // This program is free software; you can redistribute it and/or |
| // modify it under the terms of the GNU General Public License |
| // as published by the Free Software Foundation; either version 2 |
| // of the License, or (at your option) any later version. |
| // |
| // This program is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| // You should have received a copy of the GNU General Public License |
| // along with this program; if not, write to the Free Software |
| // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| // |
| #ifndef BENCH_HH |
| #define BENCH_HH |
| |
| #include "btl.hh" |
| #include "bench_parameter.hh" |
| #include <iostream> |
| #include "utilities.h" |
| #include "size_lin_log.hh" |
| #include "xy_file.hh" |
| #include <vector> |
| #include <string> |
| #include "timers/portable_perf_analyzer.hh" |
| // #include "timers/mixed_perf_analyzer.hh" |
| // #include "timers/x86_perf_analyzer.hh" |
| // #include "timers/STL_perf_analyzer.hh" |
| #ifdef HAVE_MKL |
| extern "C" void cblas_saxpy(const int, const float, const float *, const int, float *, const int); |
| #endif |
| using namespace std; |
| |
| template <template <class> class Perf_Analyzer, class Action> |
| BTL_DONT_INLINE void bench(int size_min, int size_max, int nb_point) { |
| if (BtlConfig::skipAction(Action::name())) return; |
| |
| string filename = "bench_" + Action::name() + ".dat"; |
| |
| INFOS("starting " << filename); |
| |
| // utilities |
| |
| std::vector<double> tab_mflops(nb_point); |
| std::vector<int> tab_sizes(nb_point); |
| |
| // matrices and vector size calculations |
| size_lin_log(nb_point, size_min, size_max, tab_sizes); |
| |
| std::vector<int> oldSizes; |
| std::vector<double> oldFlops; |
| bool hasOldResults = read_xy_file(filename, oldSizes, oldFlops, true); |
| int oldi = oldSizes.size() - 1; |
| |
| // loop on matrix size |
| Perf_Analyzer<Action> perf_action; |
| for (int i = nb_point - 1; i >= 0; i--) { |
| // INFOS("size=" <<tab_sizes[i]<<" ("<<nb_point-i<<"/"<<nb_point<<")"); |
| std::cout << " " |
| << "size = " << tab_sizes[i] << " " << std::flush; |
| |
| BTL_DISABLE_SSE_EXCEPTIONS(); |
| #ifdef HAVE_MKL |
| { |
| float dummy; |
| cblas_saxpy(1, 0, &dummy, 1, &dummy, 1); |
| } |
| #endif |
| |
| tab_mflops[i] = perf_action.eval_mflops(tab_sizes[i]); |
| std::cout << tab_mflops[i]; |
| |
| if (hasOldResults) { |
| while (oldi >= 0 && oldSizes[oldi] > tab_sizes[i]) --oldi; |
| if (oldi >= 0 && oldSizes[oldi] == tab_sizes[i]) { |
| if (oldFlops[oldi] < tab_mflops[i]) |
| std::cout << "\t > "; |
| else |
| std::cout << "\t < "; |
| std::cout << oldFlops[oldi]; |
| } |
| --oldi; |
| } |
| std::cout << " MFlops (" << nb_point - i << "/" << nb_point << ")" << std::endl; |
| } |
| |
| if (!BtlConfig::Instance.overwriteResults) { |
| if (hasOldResults) { |
| // merge the two data |
| std::vector<int> newSizes; |
| std::vector<double> newFlops; |
| unsigned int i = 0; |
| unsigned int j = 0; |
| while (i < tab_sizes.size() && j < oldSizes.size()) { |
| if (tab_sizes[i] == oldSizes[j]) { |
| newSizes.push_back(tab_sizes[i]); |
| newFlops.push_back(std::max(tab_mflops[i], oldFlops[j])); |
| ++i; |
| ++j; |
| } else if (tab_sizes[i] < oldSizes[j]) { |
| newSizes.push_back(tab_sizes[i]); |
| newFlops.push_back(tab_mflops[i]); |
| ++i; |
| } else { |
| newSizes.push_back(oldSizes[j]); |
| newFlops.push_back(oldFlops[j]); |
| ++j; |
| } |
| } |
| while (i < tab_sizes.size()) { |
| newSizes.push_back(tab_sizes[i]); |
| newFlops.push_back(tab_mflops[i]); |
| ++i; |
| } |
| while (j < oldSizes.size()) { |
| newSizes.push_back(oldSizes[j]); |
| newFlops.push_back(oldFlops[j]); |
| ++j; |
| } |
| tab_mflops = newFlops; |
| tab_sizes = newSizes; |
| } |
| } |
| |
| // dump the result in a file : |
| dump_xy_file(tab_sizes, tab_mflops, filename); |
| } |
| |
| // default Perf Analyzer |
| |
| template <class Action> |
| BTL_DONT_INLINE void bench(int size_min, int size_max, int nb_point) { |
| // if the rdtsc is not available : |
| bench<Portable_Perf_Analyzer, Action>(size_min, size_max, nb_point); |
| // if the rdtsc is available : |
| // bench<Mixed_Perf_Analyzer,Action>(size_min,size_max,nb_point); |
| |
| // Only for small problem size. Otherwise it will be too long |
| // bench<X86_Perf_Analyzer,Action>(size_min,size_max,nb_point); |
| // bench<STL_Perf_Analyzer,Action>(size_min,size_max,nb_point); |
| } |
| |
| #endif |