MPI_Wtime

MPI_Wtime - Returns an elapsed time on the calling processor

SYNOPSIS

 
#include <mpi.h> 
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.Ifthe 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 function is declared as DOUBLE PRECISION MPI_WTIME() in Fortran.