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.. _mpi_get_library_version:
MPI_Get_library_version
=======================
.. include_body
:ref:`MPI_Get_library_version` |mdash| Returns a string of the current Open MPI
version
SYNTAX
------
C Syntax
^^^^^^^^
.. code-block:: c
#include <mpi.h>
int MPI_Get_library_version(char *version, int *resultlen)
Fortran Syntax
^^^^^^^^^^^^^^
.. code-block:: fortran
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_GET_LIBRARY_VERSION(VERSION, RESULTLEN, IERROR)
CHARACTER*(*) NAME
INTEGER RESULTLEN, IERROR
Fortran 2008 Syntax
^^^^^^^^^^^^^^^^^^^
.. code-block:: fortran
USE mpi_f08
MPI_Get_library_version(version, resulten, ierror)
CHARACTER(LEN=MPI_MAX_LIBRARY_VERSION_STRING), INTENT(OUT) :: version
INTEGER, INTENT(OUT) :: resultlen
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
OUTPUT PARAMETERS
-----------------
* ``version`` : A string containing the Open MPI version (string).
* ``resultlen`` : Length (in characters) of result returned in version
(integer).
* ``ierror`` : Fortran only: Error status (integer).
DESCRIPTION
-----------
This routine returns a string representing the version of the MPI
library. The version argument is a character string for maximum
flexibility.
The number of characters actually written is returned in the output
argument, resultlen. In C, a '0' character is additionally stored at
version[resultlen]. The resultlen cannot be larger than
(MPI_MAX_LIBRARY_VERSION_STRING - 1). In Fortran, version is padded on
the right with blank characters. The resultlen cannot be larger than
MPI_MAX_LIBRARY_VERSION_STRING.
NOTE
----
The version string that is passed must be at least
MPI_MAX_LIBRARY_VERSION_STRING characters long.
:ref:`MPI_Get_library_version` is one of the few functions that can be called
before :ref:`MPI_Init` and after :ref:`MPI_Finalize`.
ERRORS
------
.. include:: ./ERRORS.rst
.. seealso:: :ref:`MPI_Get_version`
|
