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Old November 9, 2011, 08:17 AM
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ilya is correct - fah is itself one giant cluster, and each client is a single node, hence the inability to scale across multiple nodes. Note - the GROMACS core does in fact support clusters, but the fah implementation of it does not owing to the method it uses for assigning work to nodes.

Look at awachs, for example - he's got a powerful supercomputer there, but instead of running one humungous bigadv client, he runs a myriad of regular SMP clients because he can not scale across multiples of his own nodes.
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