NAME

       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()

C++ Syntax

       #include <mpi.h>
       double 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

       MPI_Wtime