MPI_Get_library_version(3) Open MPI MPI_Get_library_version(3)
NAME
MPI_Get_library_version - Returns a string of the current Open MPI ver-
sion
SYNTAX
C Syntax
#include <mpi.h>
int MPI_Get_library_version(char *version, int *resultlen)
Fortran Syntax
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_GET_LIBRARY_VERSION(VERSION, RESULTLEN, IERROR)
CHARACTER*(*) NAME
INTEGER RESULTLEN, IERROR
Fortran 2008 Syntax
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
C++ Syntax
There is no C++ binding for this function.
OUTPUT PARAMETERS
version A string containing the Open MPI version (string).
resultlen Length (in characters) of result returned in version (inte-
ger).
IERROR Fortran only: Error status (integer).
DESCRIPTION
This routine returns a string representing the version of the MPI li-
brary. The version argument is a character string for maximum flexibil-
ity.
The number of characters actually written is returned in the output ar-
gument, resultlen. In C, a '\0' character is additionally stored at
version[resultlen]. The resultlen cannot be larger than (MPI_MAX_LI-
BRARY_VERSION_STRING - 1). In Fortran, version is padded on the right
with blank characters. The resultlen cannot be larger than MPI_MAX_LI-
BRARY_VERSION_STRING.
NOTE
The version string that is passed must be at least MPI_MAX_LIBRARY_VER-
SION_STRING characters long.
MPI_Get_library_version is one of the few functions that can be called
before MPI_Init and after MPI_Finalize.
MPI_Get_library_version is an MPI-3 function and has no C++ binding.
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.
SEE ALSO
MPI_Get_version
4.1.2 Nov 24, 2021 MPI_Get_library_version(3)
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