MPI_Errhandler_free(3) man page (version 4.1.8)

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Table of Contents

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

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Table of Contents

• Name
• Syntax
• C Syntax
• Fortran Syntax
• Fortran 2008 Syntax
• Input Parameter
• Output Parameter
• Description
• Errors
• See Also

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Page last modified: 5-Feb-2025
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