MPI_Errhandler_free(3)

NAME
MPI_Errhandler_free - Frees an MPI-style error handler.

SYNTAX

C Syntax
#include <mpi.h>
int MPI_Errhandler_free(MPI_Errhandler *errhandler)

Fortran Syntax
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_ERRHANDLER_FREE(ERRHANDLER, IERROR)
	INTEGER	ERRHANDLER, IERROR

Fortran 2008 Syntax
USE mpi_f08
MPI_Errhandler_free(errhandler, ierror)
	TYPE(MPI_Errhandler), INTENT(INOUT) :: errhandler
	INTEGER, OPTIONAL, INTENT(OUT) :: ierror

INPUT PARAMETER

errhandler
    MPI error handler (handle). Set to MPI_ERRHANDLER_NULL on exit.

OUTPUT PARAMETER

IERROR
    Fortran only: Error status (integer).

DESCRIPTION
Marks the error handler associated with errhandler for deallocation and sets errhandler to MPI_ERRHANDLER_NULL. The error handler will be deallocated after all communicators associated with it have been deallocated.

ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI::Exception object.

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_Comm_create_errhandler
MPI_Comm_get_errhandler
MPI_Comm_set_errhandler