MPI_Type_set_attr - Stores attribute value associated with a key
int MPI_Type_set_attr(MPI_Datatype datatype, int type_keyval, void *attribute_val)
- - MPI Datatype to which attribute will be attached (handle)
- - key value, as returned by MPI_Type_create_keyval (integer)
- - attribute value
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 an
If an attribute is already present, the delete function (specified when the
corresponding keyval was created) will be called.
All MPI routines in Fortran (except for MPI_WTIME
have an additional argument ierr
at the end of the argument list.
is an integer and has the same meaning as the return value of the
routine in C. In Fortran, MPI routines are subroutines, and are invoked with
All MPI objects (e.g., MPI_Datatype
) are of type
All MPI routines (except MPI_Wtime
) return an error
value; C routines as the value of the function and Fortran routines in the
last argument. Before the value is returned, the current MPI error handler is
called. By default, this error handler aborts the MPI job. The error handler
may be changed with MPI_Comm_set_errhandler
(for files), and MPI_Win_set_errhandler
(for RMA windows). The MPI-1 routine MPI_Errhandler_set
may be used but
its use is deprecated. The predefined error handler MPI_ERRORS_RETURN
may be used to cause error values to be returned. Note that MPI does
guarentee that an MPI program can continue past an error; however,
MPI implementations will attempt to continue whenever possible.
- - No error; MPI routine completed successfully.
- - Invalid datatype argument. Additionally, this error can occur if an
uncommitted MPI_Datatype (see MPI_Type_commit ) is used in a
- - Invalid keyval