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

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