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-//=====================================================
-// 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. Otherwize 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