1 //===================================================== 2 // File : STL_perf_analyzer.hh 3 // Author : L. Plagne <laurent.plagne (at) edf.fr)> 4 // Copyright (C) EDF R&D, mar dc 3 18:59:35 CET 2002 5 //===================================================== 6 // 7 // This program is free software; you can redistribute it and/or 8 // modify it under the terms of the GNU General Public License 9 // as published by the Free Software Foundation; either version 2 10 // of the License, or (at your option) any later version. 11 // 12 // This program is distributed in the hope that it will be useful, 13 // but WITHOUT ANY WARRANTY; without even the implied warranty of 14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 // GNU General Public License for more details. 16 // You should have received a copy of the GNU General Public License 17 // along with this program; if not, write to the Free Software 18 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 19 // 20 #ifndef _STL_PERF_ANALYSER_HH 21 #define _STL_PERF_ANALYSER_HH 22 23 #include "STL_timer.hh" 24 #include "bench_parameter.hh" 25 26 template<class ACTION> 27 class STL_Perf_Analyzer{ 28 public: 29 STL_Perf_Analyzer(unsigned long long nb_sample=DEFAULT_NB_SAMPLE):_nb_sample(nb_sample),_chronos() 30 { 31 MESSAGE("STL_Perf_Analyzer Ctor"); 32 }; 33 STL_Perf_Analyzer( const STL_Perf_Analyzer & ){ 34 INFOS("Copy Ctor not implemented"); 35 exit(0); 36 }; 37 ~STL_Perf_Analyzer( void ){ 38 MESSAGE("STL_Perf_Analyzer Dtor"); 39 }; 40 41 42 inline double eval_mflops(int size) 43 { 44 45 ACTION action(size); 46 47 _chronos.start_baseline(_nb_sample); 48 49 do { 50 51 action.initialize(); 52 } while (_chronos.check()); 53 54 double baseline_time=_chronos.get_time(); 55 56 _chronos.start(_nb_sample); 57 do { 58 action.initialize(); 59 action.calculate(); 60 } while (_chronos.check()); 61 62 double calculate_time=_chronos.get_time(); 63 64 double corrected_time=calculate_time-baseline_time; 65 66 // cout << size <<" "<<baseline_time<<" "<<calculate_time<<" "<<corrected_time<<" "<<action.nb_op_base() << endl; 67 68 return action.nb_op_base()/(corrected_time*1000000.0); 69 //return action.nb_op_base()/(calculate_time*1000000.0); 70 71 } 72 private: 73 74 STL_Timer _chronos; 75 unsigned long long _nb_sample; 76 77 78 }; 79 80 81 82 #endif 83
