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authorGravatar Gael Guennebaud <g.gael@free.fr>2008-07-09 14:04:48 +0000
committerGravatar Gael Guennebaud <g.gael@free.fr>2008-07-09 14:04:48 +0000
commit28539e7597c643dbc2b8d4f49dd16bd86fb7251f (patch)
tree3bfb96ae898f0afc943a388edcc83c27d28d5b3a /bench/btl/generic_bench/bench.hh
parent5f55ab524cf0aad34dd6884bcae09eaa6c43c247 (diff)
imported a reworked version of BTL (Benchmark for Templated Libraries).
the modifications to initial code follow: * changed build system from plain makefiles to cmake * added eigen2 (4 versions: vec/novec and fixed/dynamic), GMM++, MTL4 interfaces * added "transposed matrix * vector" product action * updated blitz interface to use condensed products instead of hand coded loops * removed some deprecated interfaces * changed default storage order to column major for all libraries * new generic bench timer strategy which is supposed to be more accurate * various code clean-up
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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 "bench_parameter.hh"
+#include <iostream>
+#include "utilities.h"
+#include "size_lin_log.hh"
+#include "dump_file_x_y.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"
+
+using namespace std;
+
+template <template<class> class Perf_Analyzer, class Action>
+void bench( int size_min, int size_max, int nb_point ){
+
+ // bench name
+
+ 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);
+
+ // 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;
+ tab_mflops[i] = perf_action.eval_mflops(tab_sizes[i]);
+ std::cout << tab_mflops[i] << " MFlops (" << nb_point-i << "/" << nb_point << ")" << std::endl;
+ }
+// std::cout << "\n";
+
+ // dump the result in a file :
+
+ dump_file_x_y(tab_sizes,tab_mflops,filename);
+
+}
+
+// default Perf Analyzer
+
+template <class Action>
+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