Mark Hahn wrote: >Regardless of how tight the seastar per-hop latency is, >IB has 2.5x the per-hop fanout (2or 3 outgoing 9.6 GB links >versus 18 outgoing 4 GB/s links). higher radix means an >advantage that increases with size.
Doesn't this assume worst case all-to-all type communication patterns. If you are just trading ghost cell data with your neighbors and you have placed your job smartly on the torus the fan out advantage mentioned is irrelevant. No? rbw _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
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