Revision a33bf9189c283a6255ce18378843bad2293f3529 authored by Thomas Fischer on 31 August 2021, 10:31:34 UTC, committed by Dmitry Yu. Naumov on 05 September 2021, 20:09:22 UTC
1 parent 3cfa57b
RunTime.h
/**
* \file
* \author Thomas Fischer
* \author Wenqing Wang
* \date 2012-05-10, 2014-10.10
* \brief Definition of the RunTime class.
*
* \copyright
* Copyright (c) 2012-2021, OpenGeoSys Community (http://www.opengeosys.org)
* Distributed under a Modified BSD License.
* See accompanying file LICENSE.txt or
* http://www.opengeosys.org/project/license
*/
#pragma once
#ifdef USE_PETSC
#include <mpi.h>
#include <limits>
#else
#include <chrono>
#endif
namespace BaseLib
{
/// Count the running time.
class RunTime
{
public:
/// Start the timer.
void start()
{
#ifdef USE_PETSC
start_time_ = MPI_Wtime();
#else
start_time_ = std::chrono::system_clock::now();
#endif
}
/// Get the elapsed time in seconds.
double elapsed() const
{
#ifdef USE_PETSC
return MPI_Wtime() - start_time_;
#else
using namespace std::chrono;
return duration<double>(system_clock::now() - start_time_).count();
#endif
}
private:
#ifdef USE_PETSC
double start_time_ = std::numeric_limits<double>::quiet_NaN();
#else
std::chrono::time_point<std::chrono::system_clock> start_time_;
#endif
};
} // end namespace BaseLib
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