This web mail archive is frozen.
This page is part of a frozen web archive of this mailing list.
You can still navigate around this archive, but know that no new mails
have been added to it since July of 2016.
Click here to be taken to the new web archives of this list; it includes all the mails that are in this frozen archive plus all new mails that have been sent to the list since it was migrated to the new archives.
I'm not exactly sure where the fix to this should be, but I think I've
found a problem.
Consider, for illustration, launching a multi-process job on a single
node. The function
Each process could conceivably return a different value -- OMPI_SUCCESS
or otherwise. E.g., if there isn't enough room for all to allocate all
the shared memory they need, early processes might succeed in their
allocations while laggards won't.
The fact that some processes fail doesn't bother the BML. It just loops
over other BTLs and, quite possibly, finds another BTL to make needed
Is this a problem? It seems to me to be, but I haven't yet figured out
what the BML does next. I'm guessing it ends up with a hodgepodge of
BTLs. E.g., A talks to B via sm, but B talks to A via tcp. And, I'm
still guessing, this produces badness (like hangs).