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Subject: Re: [OMPI users] mpirun example program fail on multiple nodes- unable to launch specified application on client node
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2009-11-05 17:53:01


On Nov 5, 2009, at 5:34 PM, Douglas Guptill wrote:

> I am currently using sshfs to mount both OpenMPI and my application on
> the "other" computers/nodes. The advantage to this is that I have
> only one copy of OpenMPI and my application. There may be a
> performance penalty, but I haven't seen it yet.
>

For a small number of nodes (where small <=32 or sometimes even <=64),
I find that simple NFS works just fine. If your apps aren't IO
intensive, that can greatly simplify installation and deployment of
both Open MPI and your MPI applications IMNSHO.

But -- every app is different. :-) YMMV.

-- 
Jeff Squyres
jsquyres_at_[hidden]