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From: Ralph Castain (rhc_at_[hidden])
Date: 2007-03-21 23:36:20


Yo David

What system are you running this on? RoadRunner? If so, I can take a look at
"fixing" it for you tomorrow (Thurs).

Ralph

On 3/21/07 10:17 AM, "David Daniel" <ddd_at_[hidden]> wrote:

> I'm experimenting with heterogeneous applications (x86_64 <-->
> ppc64), where the systems share the file system where Open MPI is
> installed.
>
> What I would like to be able to do is something like this:
>
> mpirun --np 1 --host host-x86_64 --prefix /opt/ompi/x86_64
> a.out.x86_64 : --np 1 --host host-ppc64 --prefix /opt/ompi/ppc64
> a.out.ppc64
>
> Unfortunately it looks as if the second --prefix is always ignored.
> My guess is that orte_app_context_t::prefix_dir is getting set, but
> only the 0th app context is never consulted (except in the dynamic
> process stuff where I do see a loop over the app context array).
>
> I can of course work around it with startup scripts, but a command
> line solution would be attractive.
>
> This is with openmpi-1.2.
>
> Thanks, David
>
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