17.2.173. MPI_Get_version

MPI_Get_version - Returns the version of the standard corresponding to the current implementation.

17.2.173.1. Syntax

17.2.173.1.1. C Syntax

#include <mpi.h>

int MPI_Get_version(int *version, int *subversion)

17.2.173.1.2. Fortran Syntax

USE MPI
! or the older form: INCLUDE 'mpif.h'

MPI_GET_VERSION(VERSION, SUBVERSION, IERROR)
    INTEGER VERSION, SUBVERSION, IERROR

17.2.173.1.3. Fortran 2008 Syntax

USE mpi_f08

MPI_Get_version(version, subversion, ierror)
    INTEGER, INTENT(OUT) :: version, subversion
    INTEGER, OPTIONAL, INTENT(OUT) :: ierror

17.2.173.2. Output Parameters

  • version : The major version number of the corresponding standard (integer).

  • subversion : The minor version number of the corresponding standard (integer).

  • IERROR : Fortran only: Error status (integer).

17.2.173.3. Description

Since Open MPI is MPI 3.1 compliant, this function will return a version value of 3 and a subversion value of 1 for this release.

17.2.173.4. Note

MPI_Get_version is one of the few functions that can be called before MPI_Init and after MPI_Finalize.

17.2.173.5. Errors

Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument.

Before the error value is returned, the current MPI error handler is called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error.