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From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2005-08-23 10:18:25


On Aug 18, 2005, at 6:42 PM, Lei_at_ICS wrote:

> Now I have another question: Is it possible to start a heterogeneous
> LAM universe and use published names to link an MPI singleton
> with some real MPI processes?

Yes.

> We have the need to run the MPI singleton
> on a Windows PC via MEX from a Windows version of Matlab,
> and have the singleton either spawn the real MPI processes on
> a LINUX cluster or talk with the real MPI processes by searching
> published
> names.

Yes; I think I proposed a similar scheme to a LAM user a while ago
(i.e., if the MEX MPI script did a lookup and didn't find the name,
then it spawned the processes).

> I know LAM MPI runs on heterogeneous nodes, but just wanted
> to make sure that I hear a "yes" from you given that you now
> understand our need to do parallel computation in the context
> of Matlab. I am also hoping that with LAM all the MPI code
> that I develop assuming homogeneous environment will automatically
> work on heterogeneous nodes.

Yes, but we only have limited support for Windows. Running on Cygwin
more-or-less works -- see the release notes for more details.

-- 
{+} Jeff Squyres
{+} jsquyres_at_[hidden]
{+} http://www.lam-mpi.org/