[Beowulf] Cheap SDR IB
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Pfenniger Daniel daniel.pfenniger at obs.unige.chFri Feb 1 14:56:35 PST 2008
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Mark Hahn wrote: >>> 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? > Yes, I forgot to divide by 2! Some HCA have 2 ports, so they would be indicated for a 3 node switchless cluster. Dan
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