benchmark-ftrtri.C
/* -*- mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
// vim:sts=8:sw=8:ts=8:noet:sr:cino=>s,f0,{0,g0,(0,\:0,t0,+0,=s
/* Copyright (c) FFLAS-FFPACK
* Written by Clément Pernet <clement.pernet@imag.fr> and Philippe Ledent
* ========LICENCE========
* This file is part of the library FFLAS-FFPACK.
*
* FFLAS-FFPACK is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* ========LICENCE========
*/
#include "fflas-ffpack/fflas-ffpack-config.h"
#include <iostream>
#include <givaro/modular.h>
#include "fflas-ffpack/fflas-ffpack.h"
#include "fflas-ffpack/utils/timer.h"
#include "fflas-ffpack/utils/fflas_io.h"
#include "fflas-ffpack/utils/args-parser.h"
using namespace std;
int main(int argc, char** argv) {
size_t iter = 3;
int q = 131071;
size_t n = 2000;
size_t t = 0;
std::string file = "";
Argument as[] = {
{ 'q', "-q Q", "Set the field characteristic (-1 for random).", TYPE_INT , &q },
{ 'n', "-n N", "Set the dimension of the matrix.", TYPE_INT , &n },
{ 't', "-t T", "Set the base case threshold.", TYPE_INT , &t },
{ 'i', "-i R", "Set number of repetitions.", TYPE_INT , &iter },
{ 'f', "-f FILE", "Set the input file (empty for random).", TYPE_STR , &file },
END_OF_ARGUMENTS
};
FFLAS::parseArguments(argc,argv,as);
typedef Givaro::ModularBalanced<double> Field;
typedef Field::Element Element;
Field F(q);
Field::Element * A, *B;
FFLAS::Timer chrono;
double time=0.0;
A = FFLAS::fflas_new<Element>(n*n);
B = FFLAS::fflas_new<Element>(n*n);
FFPACK::RandomTriangularMatrix (F, n, n, FFLAS::FflasUpper,FFLAS::FflasNonUnit,true,B,n);
for (size_t i=0;i<=iter;++i){
if (!file.empty()){
FFLAS::ReadMatrix (file.c_str(),F,n,n,A);
}
else {
FFLAS::fassign(F,n,n,B,n,A,n);
}
chrono.clear();
if (i) chrono.start();
if (t)
FFPACK::ftrtri(F, FFLAS::FflasUpper, FFLAS::FflasNonUnit, n, A, n, t);
else
FFPACK::ftrtri(F, FFLAS::FflasUpper, FFLAS::FflasNonUnit, n, A, n);
if (i) chrono.stop();
time+=chrono.realtime();
}
FFLAS::fflas_delete (A);
FFLAS::fflas_delete (B);
// -----------
// Standard output for benchmark - Alexis Breust 2014/11/14
#define CUBE(x) ((x)*(x)*(x))
std::cout << "Time: " << time / double(iter)
<< " Gfops: " << CUBE(double(n)/1000.)/(3*time) * double(iter);
FFLAS::writeCommandString(std::cout, as) << std::endl;
return 0;
}