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Bert22306
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re: Nvidia: ARM supercomputer to be more efficient than x86
Bert22306   12/6/2011 10:38:12 PM
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Very interesting. Since supercomputers are all about mega-multicores, it would seem that there is a tradeoff between designing in more energy efficient cores, vs perhaps fewer cores that are better able to manage unpredictable tasks.

bobbytsai
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re: Nvidia: ARM supercomputer to be more efficient than x86
bobbytsai   12/6/2011 9:20:40 PM
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correction : intel has 1/5-1/10 perf/watt

the lavender fan
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re: Nvidia: ARM supercomputer to be more efficient than x86
the lavender fan   12/6/2011 9:14:14 PM
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I'm not so sure. It all boils down to the performance per Watt of energy consumed. Is there any data for a fair comparison between ARM and x86?

bobbytsai
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re: Nvidia: ARM supercomputer to be more efficient than x86
bobbytsai   12/6/2011 9:09:09 PM
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all cortex a9 arm processors have out of order execution and branch prediction already. cortex a15 will also be super scalar. cortex a8 is dual in-order instruction issue. most vendors also include SIMD units in there arm offerings. no much a intel processor has on these except 5-10x perf/watt

SylvieBarak
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re: Nvidia: ARM supercomputer to be more efficient than x86
SylvieBarak   12/6/2011 8:04:54 PM
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There is one being built at the moment, yes. By the Barcelona Supercomputing Center. But it's not built yet. http://www.eetimes.com/electronics-news/4230570/Spain-Nvidia-plan-ARM-based-supercomputer

Patrick Van Oosterwijck
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re: Nvidia: ARM supercomputer to be more efficient than x86
Patrick Van Oosterwijck   12/6/2011 7:39:52 PM
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High performance computing IS energy efficient computing. At the scale we're talking nowadays, the best way to allow supercomputers to be faster is by reducing their power consumption and heat dissipation. Those are the factors limiting you from throwing in more computing resources.

krisi
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re: Nvidia: ARM supercomputer to be more efficient than x86
krisi   12/6/2011 7:14:41 PM
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Is there any supercomputer build using ARM processors? Kris

polylith
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re: Nvidia: ARM supercomputer to be more efficient than x86
polylith   12/6/2011 6:23:28 PM
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Yeah, out of order execution, branch prediction, etc are just for users clicking their mice. You don't need those for REAL high performance computing :)

chanj0
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re: Nvidia: ARM supercomputer to be more efficient than x86
chanj0   12/6/2011 6:01:34 PM
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“It’s a terrific processor for everyday computing, not the right device as we go towards high performance computing,” His statement seems to redefine high performance computing to energy efficient computing.

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