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Man Pages


Manual Reference Pages  -  MPI_GET_LIBRARY_VERSION (3)

NAME

MPI_Get_library_version - Returns a string of the current Open MPI version

CONTENTS

Syntax
C Syntax
Fortran Syntax
C++ Syntax
Output Parameters
Description
Note
Errors
See Also

SYNTAX

C Syntax

#include <mpi.h>
int MPI_Get_library_version(char *version, int *resultlen)

Fortran Syntax

INCLUDE ’mpif.h’
MPI_GET_LIBRARY_VERSION(VERSION, RESULTLEN, IERROR)
        CHARACTER*(*)   NAME
        INTEGER RESULTLEN, 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 (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.

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
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1.10.2 MPI_GET_LIBRARY_VERSION (3) Jan 21, 2016

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