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Subject: Re: [OMPI users] infiniband problem
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2008-11-21 15:58:05


On Nov 20, 2008, at 4:16 PM, Michael Oevermann wrote:

> with a blank behind /machine. Anyway, your suggested options -mca
> btl openib,sm,self
> did help!!!

The specific tip here is that on Linux, you want to use the openib
BTL, not the udapl BTL. Specifying "--mca btl openib,sm,self" means
that Open MPI will use those 3 BTLs instead of attempting to auto-
select (apparently the auto-selection will include udapl).

Since you never want to use udapl on Linux, it's safe to entirely
remove it from the system:

   cd /where/you/installed/ompi
   cd lib/openmpi
   rm *udapl*

Then you won't need to include "--mca btl openib,sm,self" on the
command line any more.

-- 
Jeff Squyres
Cisco Systems