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MPI_Attr_delete(3) man page (version 1.8)

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Name

MPI_Attr_delete - Deletes attribute value associated with a key -- use of this routine is deprecated.

Syntax

C Syntax


#include <mpi.h>
int MPI_Attr_delete(MPI_Comm comm, int keyval)

Fortran Syntax


INCLUDE ’mpif.h’
MPI_ATTR_DELETE(COMM, KEYVAL, IERROR)            
    INTEGER    COMM, KEYVAL, IERROR

Java Syntax


import mpi.*;
int MPI.COMM_WORLD.Attr_delete(MPI.keyval)

Input Parameters

comm
Communicator to which attribute is attached (handle).
keyval
The key value of the deleted attribute (integer).

Output Parameter

IERROR
Fortran only: Error status (integer).

Description

This deprecated routine is not available in C++.

Note that use of this routine is deprecated as of MPI-2. Please use MPI_Comm_delete_attr.

Delete attribute from cache by key. This function invokes the attribute delete function delete_fn specified when the keyval was created. The call will fail if the delete_fn function returns an error code other than MPI_SUCCESS.

Whenever a communicator is replicated using the function MPI_Comm_dup, all callback copy functions for attributes that are currently set are invoked (in arbitrary order). Whenever a communicator is deleted using the function MPI_Comm_free, all callback delete functions for attributes that are currently set are invoked.

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_delete_attr


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