networking options
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Joachim Worringen joachim at ccrl-nece.deTue Sep 24 14:18:36 PDT 2002
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Richard Walsh: > Whoops ... down is not alway bad ... in my prior note > I meant gets worse (grows larger quickly). > > | > | > > V > > >SCI's switchless latency drops off steeply as you scale to largish > >(> 128 nodes) sizes ... you can of course use SCI switches to reduce Do you have an example for this? AFAIK, the hop latency for each SCI node in-between is a few ns, and with a 128 node cluster in 3D topology, you would never pass more than about 15 nodes. Numbers from a real, busy cluster would be helpful. Joachim -- Joachim Worringen - NEC C&C research lab St.Augustin fon +49-2241-9252.20 - fax .99 - http://www.ccrl-nece.de
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