[Beowulf] Cheap SDR IB
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Mark Hahn hahn at mcmaster.caFri Feb 1 12:10:38 PST 2008
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>> If I had just 2 fat nodes could I connect the HCAs directly to each other >> and avoid the switch costs? > > Yes. With 3 nodes it might be cheaper having 2 HCA per node, 6 cables, > than the switch solution. with 3 nodes, each with a two ports, wouldn't you need just 3 cables? how is routing controlled in switchless configs? does IB have node-level forwarding?
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