On Aug 4, 2008, at 9:52 AM, Brian Barrett wrote:
I suppose, but that's a pain when you just want to say "I don't support calling add_procs a second time" :). But I'm not going to fix all the BTLs to make that work right, so I suppose in the end I really don't have a strong opinion.
Good point. I think that if the PML/BML sees OMPI_ERR_NOT_SUPPORTED or OMPI_ERR_NOT_IMPLEMENTED from add_procs(), that can be non-fatal; the BTL can just be ignored for this round (i.e., it wouldn't affect any procs that were already successfully added to that BTL module).
Of course, that means that a BTL could return NOT_SUPPORTED/ IMPLEMENTED during MPI_INIT, but that would be pretty dumb. :-)
-- Jeff Squyres Cisco Systems
