Homec4science
Diffusion Diffusion limited mixed aggregation (master) Browse

dlma/eigen-3.4.0/bench/btl/generic_bench/timers/STL_perf_analyzer.hh
68bb631292e1master

Last Change
Raw File

STL_perf_analyzer.hh
View Options

This document is not UTF8. It was detected as Shift JIS and converted to UTF8 for display.
//=====================================================
// File : STL_perf_analyzer.hh
// Author : L. Plagne <laurent.plagne@edf.fr)>
// Copyright (C) EDF R&D, mar d馗 3 18:59:35 CET 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 _STL_PERF_ANALYSER_HH
#define _STL_PERF_ANALYSER_HH
#include "STL_timer.hh"
#include "bench_parameter.hh"
template<class ACTION>
class STL_Perf_Analyzer{
public:
STL_Perf_Analyzer(unsigned long long nb_sample=DEFAULT_NB_SAMPLE):_nb_sample(nb_sample),_chronos()
{
MESSAGE("STL_Perf_Analyzer Ctor");
};
STL_Perf_Analyzer( const STL_Perf_Analyzer & ){
INFOS("Copy Ctor not implemented");
exit(0);
};
~STL_Perf_Analyzer( void ){
MESSAGE("STL_Perf_Analyzer Dtor");
};
inline double eval_mflops(int size)
{
ACTION action(size);
_chronos.start_baseline(_nb_sample);
do {
action.initialize();
} while (_chronos.check());
double baseline_time=_chronos.get_time();
_chronos.start(_nb_sample);
do {
action.initialize();
action.calculate();
} while (_chronos.check());
double calculate_time=_chronos.get_time();
double corrected_time=calculate_time-baseline_time;
// cout << size <<" "<<baseline_time<<" "<<calculate_time<<" "<<corrected_time<<" "<<action.nb_op_base() << endl;
return action.nb_op_base()/(corrected_time*1000000.0);
//return action.nb_op_base()/(calculate_time*1000000.0);
}
private:
STL_Timer _chronos;
unsigned long long _nb_sample;
};
#endif
c4science · Help