MPI_Attr_delete(3)                 Open MPI                 MPI_Attr_delete(3)



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



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.





1.4.1                            Jan 14, 2010               MPI_Attr_delete(3)
