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authorNarayan Kamath <narayan@google.com>2012-11-02 10:59:05 +0000
committerXiaotao Duan <xiaotao@google.com>2012-11-07 14:17:48 -0800
commitc981c48f5bc9aefeffc0bcb0cc3934c2fae179dd (patch)
tree54d1c7d66098154c1d7c5bd414394ef4cf255810 /bench/btl/generic_bench/bench.hh
parent63f67d748682b46d58be31235a0a2d64d81b998c (diff)
downloadeigen-c981c48f5bc9aefeffc0bcb0cc3934c2fae179dd.tar.gz
Added a README.android and a MODULE_LICENSE_MPL2 file. Added empty Android.mk and CleanSpec.mk to optimize Android build. Non MPL2 license code is disabled in ./Eigen/src/Core/util/NonMPL2.h. Trying to include such files will lead to an error. Change-Id: I0e148b7c3e83999bcc4dfaa5809d33bfac2aac32
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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;
+ int i=0;
+ 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