On 09/02/2011, at 2:38 AM, Ralph Castain wrote:
> Another possibility to check - are you sure you are getting the same OMPI version on the backend nodes? When I see it work on local node, but fail multi-node, the most common problem is that you are picking up a different OMPI version due to path differences on the backend nodes.
It's installed as a system package, and the software set on all machines is managed by a configuration tool, so the machines should be identical. However, it may be worth checking the dependency versions and I'll double check that the OMPI versions really do match.