83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
/*BHEADER**********************************************************************
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* Copyright (c) 2006 The Regents of the University of California.
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* Produced at the Lawrence Livermore National Laboratory.
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* Written by the HYPRE team, UCRL-CODE-222953.
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* All rights reserved.
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*
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* This file is part of HYPRE (see http://www.llnl.gov/CASC/hypre/).
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* Please see the COPYRIGHT_and_LICENSE file for the copyright notice,
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* disclaimer and the GNU Lesser General Public License.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License (as published by the Free
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* Software Foundation) version 2.1 dated February 1999.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the IMPLIED WARRANTY OF MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the terms and conditions of the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* $Revision$
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***********************************************************************EHEADER*/
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/*
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* File: timer.c
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* Copyright: (c) 1997 The Regents of the University of California
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* Author: Scott Kohn (skohn@llnl.gov)
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* Description: somewhat portable timing routines for C++, C, and Fortran
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*
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* If TIMER_USE_MPI is defined, then the MPI timers are used to get
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* wallclock seconds, since we assume that the MPI timers have better
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* resolution than the system timers.
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*/
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#include <time.h>
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#include <unistd.h>
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#ifndef WIN32
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#include <sys/times.h>
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#endif
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#ifdef TIMER_USE_MPI
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#include "mpi.h"
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#endif
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double time_getWallclockSeconds(void)
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{
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#ifdef TIMER_USE_MPI
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return(MPI_Wtime());
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#else
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#ifdef WIN32
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clock_t cl=clock();
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return(((double) cl)/((double) CLOCKS_PER_SEC));
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#else
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struct tms usage;
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long wallclock = times(&usage);
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return(((double) wallclock)/((double) sysconf(_SC_CLK_TCK)));
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#endif
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#endif
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}
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double time_getCPUSeconds(void)
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{
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#ifndef TIMER_NO_SYS
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clock_t cpuclock = clock();
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return(((double) (cpuclock))/((double) CLOCKS_PER_SEC));
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#else
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return(0.0);
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#endif
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}
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double time_get_wallclock_seconds_(void)
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{
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return(time_getWallclockSeconds());
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}
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double time_get_cpu_seconds_(void)
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{
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return(time_getCPUSeconds());
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}
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