Listing nodes in mpd.hosts on SMP machine

Listing nodes in mpd.hosts on SMP machine

I am having the problem of listing nodes in mpd.hosts file on a 4 way SMP machine with each node being a quad-core processor. How should I assign diffferent programs in MPI to different nodes. Our mpd.hosts file looks like

localhost:4
localhost:4
localhost:4
localhost:4

but our machine has only one IP address i.e. we do not know how to give internal addresses to each node. Please help in this regard.

Thanks

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Best Reply

How about giving each job a separate list in I_MPI_PIN_PROCS ? Admittedly not entirely convenient, as you will have to look up the core numbering.

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