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openmpi/ompi/mpi/c/wtime.c
Brian Barrett 28891d6de3 * Move MPI_Wtime and MPI_Wtick back out of mpi.h and into the C bindings library,
restoring the PMPI version.  A variety of reasons for this:

  - mpi.h was blinding using inline in a C header without the configrue mojo
    properly set it, as mpi.h doesn't include ompi_config.h.  This eventually
    would have caused a borked build.
  - mpi.h and mpif.h were never updated to not include PMPI_W{tick,time} as
    a proper prototype
  - The C++ and F90 bindings didn't do the right things when there was no
    PMPI version of the C call, but profiling was enabled
  - Since we only use gettimeofday, the function call overhead really doesn't
    matter

This should probably go to the 1.0 branch

This commit was SVN r8014.
2005-11-07 17:22:48 +00:00

48 строки
1.3 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <stdio.h>
#include "mpi/c/bindings.h"
#include "ompi/runtime/mpiruntime.h"
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Wtime = PMPI_Wtime
#endif
#if OMPI_PROFILING_DEFINES
#include "mpi/c/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_Wtime";
double MPI_Wtime(void)
{
struct timeval tv;
double wtime;
gettimeofday(&tv, NULL);
wtime = tv.tv_sec;
wtime += (double)tv.tv_usec / 1000000.0;
return wtime;
}