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Lessons learned: Network-based processing v. host-based processing

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re: Lessons learned: Network-based processing v. host-based processing
docdivakar   9/27/2010 11:17:45 PM
@Shainer: I would have liked to see a cost vs. performance statistic between off-loading and on-loading in your article above. But I do agree with providing meaningful benchmark comparisons to compare latencies between off-loading and on-loading approaches, a point you quite well make above. It would seem that the reduction in through put (in case of on-loading) far outweighs the gains one may make in reduced latencies of the signal path (highspeed mother board traces and on to the HCA/TCA ports). I favor with off-loading since it truly helps improving the latency of your cluster as a whole where packets can travel to and from heterogeneous interconnects. With a TOE/POE off-loaders, 10Gig Cat6A fabrics can fulfill the needs of some lesser stringent (latency) applications. Dr. MP Divakar

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re: Lessons learned: Network-based processing v. host-based processing
shainer   9/17/2010 7:43:43 PM
Yes - look at the TOP500 development over time as an example ( InfiniBand started with 3 systems back in 2003, and now is connecting 208 systems, 42% of the Top500. At first InfiniBand took nearly all of the proprietary systems (in 2005 there were more than 200 Myricom connected systems, now it is around 5 if I remember correctly), and later InfiniBand start to take systems from GigE. Check the graphs on the pdf for more info.

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re: Lessons learned: Network-based processing v. host-based processing
krisi   9/16/2010 8:39:16 PM
Gilda, You write that ""By providing low-latency, high-bandwidth and extremely low CPU overhead, InfiniBand has become the most deployed high-speed interconnect, replacing proprietary or low-performance solutions"". Do you have any statistic to back up that claim? I remember that although InfiniBand was an elegant solution it was not deployed widely as other technologies as GbE was enjoining larger market share...Kris

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