On May 14, 2010, at 9:38 AM, Anirban Lahiri wrote:
> I would be happy to use OpenMPI. However, I haven't been able to compile OpenMPI correctly on ARMv7. When I try to compile it, OpenMPI says that it cannot find the atomic operations for the specific architecture. I know it is possible to overcome this by implementing the ARMv7 specific parts in the OpenMPI libraries. The atomic primitives for ARMv7 already exist in Linux so it should not be too difficult to do. Unfortunately, I currently don't have this scheduled in.
Fair enough. If you ever get the opportunity to send us a patch for Open MPI, that would be great. I don't think we have any current users on ARM; that's probably why it doesn't work.
> However, there have been quite a few implementations of LAM on ARMv7 platforms. Therefore thats an easier route for the time being.
Sounds good.
I don't have any insight of why you're not seeing the stdout. You might want to drop a file in each MPI process and see if the procs are actually running out on your nodes (they probably are, given that mpirun completes successfully, but it's good to check).
--
Jeff Squyres
jsquyres_at_[hidden]
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