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MPI_Wtime(3)                          MPI                         MPI_Wtime(3)

NAME
       MPI_Wtime -  Returns an elapsed time on the calling processor

SYNOPSIS
       double MPI_Wtime( void )

RETURN VALUE
       Time in seconds since an arbitrary time in the past.

NOTES
       This is intended to be a high-resolution, elapsed (or wall) clock.  See
       MPI_WTICK to determine the resolution of MPI_WTIME .

       If the attribute MPI_WTIME_IS_GLOBAL is defined and true, then the
       value is synchronized across all processes in MPI_COMM_WORLD .

NOTES FOR FORTRAN
       This is a function, declared as DOUBLE PRECISION MPI_WTIME() in
       Fortran.

SEE ALSO
       also: MPI_Wtick, MPI_Comm_get_attr, MPI_Attr_get

LOCATION
       src/mpi/timer/wtime.c

                                   11/6/2008                      MPI_Wtime(3)