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Subject: Re: [OMPI users] local config files / recursive includes
From: Brett Pemberton (brett_at_[hidden])
Date: 2009-05-09 00:54:45


Jeff,

Didn't even think of that!

Yes, when I unload the pointless ib kernel drivers on the non-ib nodes, it quiets the warnings.

thanks for that,

     / Brett

----- "Jeff Squyres" <jsquyres_at_[hidden]> wrote:

> Starting in the v1.3 series, we put in slightly better checks about
> when to issue this warning or not. It *shouldn't* display the
> warnings if the OpenFabrics drivers are not loaded.
>
> Can you verify if your OpenFabrics drivers are loaded on your new,
> non-
> IB nodes?
>
>
> On May 8, 2009, at 4:40 AM, Brett Pemberton wrote:
>
> > Hey,
> >
> > We have a cluster with infiniband, and openmpi working happily.
> > We've just added some new nodes, with no ib. The scheduler has been
>
> > told to only schedule jobs onto those nodes, which don't span
> > nodes. Easy.
> >
> > Except that openmpi warns the user that no openib was found, and
> > it's dropping back to another transport (possibly at a penalty).
> > This is no problem to me, but it worries our users for no reason.
> >
> > My plan was to put some local openmpi mca config files on those
> > nodes that only allow sm,self,tcp which (I'd hope) would eliminate
>
> > the warning that it can't use openib. However our openmpi installs
>
> > are to a global fs.
> >
> > Is it possible to put a line in the global $SYSCONFDIR/etc/openmpi-
>
> > mca-params.conf to tell it to also include a subsequent
> /etc/openmpi-
> > mca-params.conf
> >
> > Any better ways of handling this would also be appreciated.
> >
> > cheers,
> >
> > / Brett
> >
> > --
> > Brett Pemberton - VPAC Senior Systems Administrator
> > http://www.vpac.org/ - (03) 9925 4899
> > _______________________________________________
> > users mailing list
> > users_at_[hidden]
> > http://www.open-mpi.org/mailman/listinfo.cgi/users
> >
>
>
> --
> Jeff Squyres
> Cisco Systems
>
> _______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users

-- 
Brett Pemberton - VPAC Senior Systems Administrator
http://www.vpac.org/ - (03) 9925 4899