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dft_tools/test/speed/speed_tester.hpp
Olivier Parcollet f2c7d449cc First commit : triqs libs version 1.0 alpha1
for earlier commits, see TRIQS0.x repository.
2013-07-17 19:24:07 +02:00

53 lines
1.6 KiB
C++

/*******************************************************************************
*
* TRIQS: a Toolbox for Research in Interacting Quantum Systems
*
* Copyright (C) 2011 by O. Parcollet
*
* TRIQS 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 3 of the License, or (at your option) any later
* version.
*
* TRIQS 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
* TRIQS. If not, see <http://www.gnu.org/licenses/>.
*
******************************************************************************/
#ifndef TRIQS_SPEEDTESTER_H
#define TRIQS_SPEEDTESTER_H
#include <triqs/utility/first_include.hpp>
#include "boost/date_time/posix_time/posix_time.hpp"
#include <triqs/utility/typeid_name.hpp>
/**
* To measure the speed of a function.
*/
template<typename Obj>
void speed_tester(size_t n_iter) {
Obj x;
using namespace boost::posix_time;
using namespace boost::gregorian;
boost::posix_time::ptime start_time = boost::posix_time::second_clock::local_time();
for (size_t u=0; u<n_iter; ++u) x();
boost::posix_time::ptime stop_time = boost::posix_time::second_clock::local_time();
time_duration td = stop_time - start_time;
std::cerr << triqs::utility::typeid_name(x)<<" : "<<to_simple_string(td) << std::endl;
};
#endif