eigen/bench/btl/data/regularize.cxx
Gael Guennebaud 28539e7597 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
2008-07-09 14:04:48 +00:00

132 lines
3.3 KiB
C++

//=====================================================
// File : regularize.cxx
// Author : L. Plagne <laurent.plagne@edf.fr)>
// Copyright (C) EDF R&D, lun sep 30 14:23:15 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.
//
#include "utilities.h"
#include <vector>
#include <string>
#include <iostream>
#include <fstream>
#include "bench_parameter.hh"
#include <set>
using namespace std;
void read_xy_file(const string & filename, vector<int> & tab_sizes, vector<double> & tab_mflops);
void regularize_curve(const string & filename,
const vector<double> & tab_mflops,
const vector<int> & tab_sizes,
int start_cut_size, int stop_cut_size);
/////////////////////////////////////////////////////////////////////////////////////////////////
int main( int argc , char *argv[] )
{
// input data
if (argc<4){
INFOS("!!! Error ... usage : main filename start_cut_size stop_cut_size regularize_filename");
exit(0);
}
INFOS(argc);
int start_cut_size=atoi(argv[2]);
int stop_cut_size=atoi(argv[3]);
string filename=argv[1];
string regularize_filename=argv[4];
INFOS(filename);
INFOS("start_cut_size="<<start_cut_size);
vector<int> tab_sizes;
vector<double> tab_mflops;
read_xy_file(filename,tab_sizes,tab_mflops);
// regularizeing
regularize_curve(regularize_filename,tab_mflops,tab_sizes,start_cut_size,stop_cut_size);
}
//////////////////////////////////////////////////////////////////////////////////////
void regularize_curve(const string & filename,
const vector<double> & tab_mflops,
const vector<int> & tab_sizes,
int start_cut_size, int stop_cut_size)
{
int size=tab_mflops.size();
ofstream output_file (filename.c_str(),ios::out) ;
int i=0;
while(tab_sizes[i]<start_cut_size){
output_file << tab_sizes[i] << " " << tab_mflops[i] << endl ;
i++;
}
output_file << endl ;
while(tab_sizes[i]<stop_cut_size){
i++;
}
while(i<size){
output_file << tab_sizes[i] << " " << tab_mflops[i] << endl ;
i++;
}
output_file.close();
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
void read_xy_file(const string & filename, vector<int> & tab_sizes, vector<double> & tab_mflops){
ifstream input_file (filename.c_str(),ios::in) ;
if (!input_file){
INFOS("!!! Error opening "<<filename);
exit(0);
}
int nb_point=0;
int size=0;
double mflops=0;
while (input_file >> size >> mflops ){
nb_point++;
tab_sizes.push_back(size);
tab_mflops.push_back(mflops);
}
SCRUTE(nb_point);
input_file.close();
}