MPI_WTICK(3)                       Open MPI                       MPI_WTICK(3)


MPI_Wtick -- Returns the resolution of MPI_Wtime.

SYNTAX
   C Syntax

          #include <mpi.h>

          double MPI_Wtick()

   Fortran Syntax

          USE MPI
          ! or the older form: INCLUDE 'mpif.h'
          DOUBLE PRECISION MPI_WTICK()

   Fortran 2008 Syntax

          USE mpi_f08
          DOUBLE PRECISION MPI_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:

          o MPI_Wtime

COPYRIGHT
       2003-2024, The Open MPI Community

                                 April 8, 2024                    MPI_WTICK(3)