Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |  

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.

Subject: Re: [OMPI users] Bug in openmpi 1.5.4 in paffinity
From: Brice Goglin (Brice.Goglin_at_[hidden])
Date: 2011-09-06 01:43:17


Le 05/09/2011 21:29, Brice Goglin a écrit :
> Dear Ake,
> Could you try the attached patch? It's not optimized, but it's probably
> going in the right direction.
> (and don't forget to remove the above comment-out if you tried it).

Actually, now that I've seen your entire topology, I found out that the
real fix is the attached patch. This is actually a Magny-Cours specific
problem (having 2 NUMA nodes inside each socket is quite unusual). I've
already committed this patch to hwloc trunk and backported to the v1.2
branch. It could be applied in OMPI 1.5.5.

The patch that I sent earlier is not needed as long as cgroups don't
reduce the available memory (your cgroups don't). I'll fix this other
bug properly soon.

Brice