83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
|
\\ / O peration |
|
|
\\ / A nd | Copyright (C) 2004-2010 OpenCFD Ltd.
|
|
\\/ M anipulation |
|
|
-------------------------------------------------------------------------------
|
|
License
|
|
This file is part of OpenFOAM.
|
|
|
|
OpenFOAM 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.
|
|
|
|
OpenFOAM 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 OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#include "cpuTime.H"
|
|
#include <unistd.h>
|
|
|
|
// * * * * * * * * * * * * * * * Static Members * * * * * * * * * * * * * * //
|
|
|
|
const long Foam::cpuTime::Hz_(sysconf(_SC_CLK_TCK));
|
|
|
|
|
|
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
|
|
|
|
void Foam::cpuTime::getTime(timeType& t)
|
|
{
|
|
times(&t);
|
|
}
|
|
|
|
|
|
double Foam::cpuTime::timeDifference(const timeType& beg, const timeType& end)
|
|
{
|
|
return
|
|
(
|
|
double
|
|
(
|
|
(end.tms_utime + end.tms_stime)
|
|
- (beg.tms_utime + beg.tms_stime)
|
|
)/Hz_
|
|
);
|
|
}
|
|
|
|
|
|
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
|
|
|
|
Foam::cpuTime::cpuTime()
|
|
{
|
|
getTime(startTime_);
|
|
lastTime_ = startTime_;
|
|
newTime_ = startTime_;
|
|
}
|
|
|
|
|
|
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
|
|
|
|
double Foam::cpuTime::elapsedCpuTime() const
|
|
{
|
|
getTime(newTime_);
|
|
return timeDifference(startTime_, newTime_);
|
|
}
|
|
|
|
|
|
double Foam::cpuTime::cpuTimeIncrement() const
|
|
{
|
|
lastTime_ = newTime_;
|
|
getTime(newTime_);
|
|
return timeDifference(lastTime_, newTime_);
|
|
}
|
|
|
|
|
|
// ************************************************************************* //
|