osx man page for mpi_attr_get

MPI_Attr_get(3OpenMPI)													    MPI_Attr_get(3OpenMPI)

NAME
       MPI_Attr_get - Retrieves attribute value by key -- use of this routine is deprecated.

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

Fortran Syntax
       INCLUDE 'mpif.h'
       MPI_ATTR_GET(COMM, KEYVAL, ATTRIBUTE_VAL, FLAG, IERROR)
	    INTEGER   COMM, KEYVAL, ATTRIBUTE_VAL, IERROR
	    LOGICAL   FLAG

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

       keyval
		  Key value (integer).

OUTPUT PARAMETERS
       attribute_val
		 Attribute value, unless flag = false.

       flag	 True if an attribute value was extracted; false if no attribute is associated with the key.

       IERROR	 Fortran only: Error status (integer).

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

       This deprecated routine is not available in C++.

       Retrieves attribute value by key. The call is erroneous if there is no key with value keyval. On the other hand, the call is correct if the
       key value exists, but no attribute is attached on comm for that key; in such case, the call returns flag = false.  In  particular  MPI_KEY-
       VAL_INVALID is an erroneous key value.

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++ func-
       tions 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_get_attr

Open MPI 1.2							  September 2006					    MPI_Attr_get(3OpenMPI)