eigen/bench/btl/generic_bench/utils/xy_file.hh
Gael Guennebaud 93115619c2 * updated benchmark files according to recent renamings
* various improvements in BTL including trisolver and cholesky bench
2008-07-27 11:39:47 +00:00

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//=====================================================
// File : dump_file_x_y.hh
// Author : L. Plagne <laurent.plagne@edf.fr)>
// Copyright (C) EDF R&D, lun sep 30 14:23:20 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 XY_FILE_HH
#define XY_FILE_HH
#include <fstream>
#include <iostream>
#include <string>
#include <vector>
using namespace std;
bool read_xy_file(const std::string & filename, std::vector<int> & tab_sizes,
std::vector<double> & tab_mflops, bool quiet = false)
{
std::ifstream input_file (filename.c_str(),std::ios::in);
if (!input_file){
if (!quiet) {
INFOS("!!! Error opening "<<filename);
}
return false;
}
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();
return true;
}
// The Vector class must satisfy the following part of STL vector concept :
// resize() method
// [] operator for seting element
// the vector element must have the << operator define
using namespace std;
template<class Vector_A, class Vector_B>
void dump_xy_file(const Vector_A & X, const Vector_B & Y, const std::string & filename){
ofstream outfile (filename.c_str(),ios::out) ;
int size=X.size();
for (int i=0;i<size;i++)
outfile << X[i] << " " << Y[i] << endl;
outfile.close();
}
#endif