Author: Vincent Diepeveen
Date: 13:32:30 09/09/03
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On September 08, 2003 at 18:14:56, Robert Hyatt wrote: >On September 08, 2003 at 17:32:45, Matthew Hull wrote: > >>. > > >Don't get too excited. Using a dual Opteron is easy enough. But using >a cluster is another thing. IE this won't be a 24-node NUMA machine. It >will be a cluster of 24 dual-cpu NUMA boxes but the nodes will be connected >with something that does message-passing. Gigabit initially but something >faster later (ie the current cluster uses the cLAN hardware but cLAN is >no longer a player in that arena). Myrinet is not bad. But there are >better options. DIEP runs NUMA, so diep runs within 1 week at a cluster too if i get an offer to run at a cluster. Just simplistic replacement of shared memory references by MPI calls. That's all. Scales till around 4000 processors i guess. Could be 8000 too. Oh MPI has some overhead of course that slows it down, but that's trivial. Best regards, Vincent
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