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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)