mpi_wtime(3) [redhat man page]

MPI_Wtime(3)							      LAM/MPI							      MPI_Wtime(3)

NAME

       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_Wime
	.  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 function is declared as DOUBLE PRECISION MPI_WTIME() in Fortran.

SEE ALSO

       MPI_Wtick, MPI_Comm_get_attr

MORE INFORMATION

       For  more  information,	please	see the official MPI Forum web site, which contains the text of both the MPI-1 and MPI-2 standards.  These
       documents contain detailed information about each MPI function (most of which is not duplicated in these man pages).

       http://www.mpi-forum.org/

ACKNOWLEDGEMENTS

       The LAM Team would like the thank the MPICH Team for the handy program to generate man pages ("doctext" from ftp://ftp.mcs.anl.gov/pub/sow-
       ing/sowing.tar.gz ), the initial formatting, and some initial text for most of the MPI-1 man pages.

LOCATION

       wtime.c

LAM
/MPI 6.5.8							    11/10/2002							      MPI_Wtime(3)

MPI_Initialized(3)						      LAM/MPI							MPI_Initialized(3)

NAME

       MPI_Initialized -  Indicates whether MPI_Init has been called.

SYNOPSIS

       #include <mpi.h>
       int MPI_Initialized(int *flag)

OUTPUT PARAMETER

       flag   - Flag is true (1) if MPI_Init has been called and false (0) otherwise.

NOTES

       This function always returns MPI_SUCCESS
	.

NOTES FOR FORTRAN

       All  MPI  routines in Fortran (except for MPI_WTIME and MPI_WTICK ) have an additional argument ierr at the end of the argument list.  ierr
       is an integer and has the same meaning as the return value of the routine in C.	In Fortran, MPI routines are subroutines, and are  invoked
       with the call statement.

       All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in Fortran.

MORE INFORMATION

       For  more  information,	please	see the official MPI Forum web site, which contains the text of both the MPI-1 and MPI-2 standards.  These
       documents contain detailed information about each MPI function (most of which is not duplicated in these man pages).

       http://www.mpi-forum.org/

ACKNOWLEDGEMENTS

       The LAM Team would like the thank the MPICH Team for the handy program to generate man pages ("doctext" from ftp://ftp.mcs.anl.gov/pub/sow-
       ing/sowing.tar.gz ), the initial formatting, and some initial text for most of the MPI-1 man pages.

LOCATION

       inited.c

LAM
/MPI 6.5.8							    11/10/2002							MPI_Initialized(3)