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mpi_wtick(3openmpi) [osx man page]

MPI_Wtick(3OpenMPI)													       MPI_Wtick(3OpenMPI)

NAME
MPI_Wtick - Returns the resolution of MPI_Wtime. SYNTAX
C Syntax #include <mpi.h> double MPI_Wtick() Fortran Syntax INCLUDE 'mpif.h' DOUBLE PRECISION MPI_WTICK() C++ Syntax #include <mpi.h> double Wtick() RETURN VALUE
Time in seconds of resolution of MPI_Wtime. DESCRIPTION
MPI_Wtick returns the resolution of MPI_Wtime in seconds. That is, it returns, as a double-precision value, the number of seconds between successive clock ticks. For example, if the clock is implemented by the hardware as a counter that is incremented every millisecond, the value returned by MPI_Wtick should be 10^-3. NOTE
This function does not return an error value. Consequently, the result of calling it before MPI_Init or after MPI_Finalize is undefined. SEE ALSO
MPI_Wtime Open MPI 1.2 September 2006 MPI_Wtick(3OpenMPI)

Check Out this Related 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)
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