MPI_Attr_put(3)                    Open MPI                    MPI_Attr_put(3)



NAME
       MPI_Attr_put - Stores attribute value associated with a key -- use of
       this routine is deprecated.


SYNTAX
C Syntax
       #include <mpi.h>
       int MPI_Attr_put(MPI_Comm comm, int keyval, void *attribute_val)


Fortran Syntax
       INCLUDE 'mpif.h'
       MPI_ATTR_PUT(COMM, KEYVAL, ATTRIBUTE_VAL, IERROR)
            INTEGER   COMM, KEYVAL, ATTRIBUTE_VAL, IERROR



INPUT PARAMETERS
       comm      Communicator to which attribute will be attached (handle).

       keyval    Key value, as returned by MPI_KEYVAL_CREATE (integer).

       attribute_val
                 Attribute value.


OUTPUT PARAMETER
       IERROR    Fortran only: Error status (integer).


DESCRIPTION
       Note that use of this routine is deprecated as of MPI-2. Please use
       MPI_Comm_set_attr instead.

       This deprecated routine is not available in C++.

       MPI_Attr_put stores the stipulated attribute value attribute_val for
       subsequent retrieval by MPI_Attr_get. If the value is already present,
       then the outcome is as if MPI_Attr_delete was first called to delete
       the previous value (and the callback function delete_fn was executed),
       and a new value was next stored. The call is erroneous if there is no
       key with value keyval; in particular MPI_KEYVAL_INVALID is an erroneous
       key value. The call will fail if the delete_fn function returned an
       error code other than MPI_SUCCESS.


NOTES
       Values of the permanent attributes MPI_TAG_UB, MPI_HOST, MPI_IO, and
       MPI_WTIME_IS_GLOBAL may not be changed.

       The type of the attribute value depends on whether C or Fortran is
       being used. In C, an attribute value is a pointer (void *); in Fortran,
       it is a single integer (not a pointer, since Fortran has no pointers
       and there are systems for which a pointer does not fit in an integer,
       e.g., any  32-bit address system that uses 64 bits for Fortran DOUBLE
       PRECISION).

       If an attribute is already present, the delete function (specified when
       the corresponding keyval was created) will be called.


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_set_attr



1.4.1                            Jan 14, 2010                  MPI_Attr_put(3)
