55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
/*
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* This file is part of libc_utils.
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*
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* libc_utils is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* libc_utils is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 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 General Public License
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* along with libc_utils; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* libc_utils is being developed at the Max-Planck-Institut fuer Astrophysik
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* and financially supported by the Deutsches Zentrum fuer Luft- und Raumfahrt
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* (DLR).
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*/
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/*
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* Functionality for reading wall clock time
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*
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* Copyright (C) 2010, 2011 Max-Planck-Society
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* Author: Martin Reinecke
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*/
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#if defined (_OPENMP)
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#include <omp.h>
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#elif defined (USE_MPI)
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#include "mpi.h"
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#else
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#include <sys/time.h>
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#include <stdlib.h>
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#endif
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#include "walltime_c.h"
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double wallTime(void)
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{
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#if defined (_OPENMP)
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return omp_get_wtime();
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#elif defined (USE_MPI)
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return MPI_Wtime();
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#else
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struct timeval t;
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gettimeofday(&t, NULL);
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return t.tv_sec + 1e-6*t.tv_usec;
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#endif
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}
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