[Beowulf] interconnect and compiler ?
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Greg Lindahl lindahl at pbm.comThu Jan 29 15:58:53 PST 2009
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On Thu, Jan 29, 2009 at 10:28:39AM -0500, Mark Hahn wrote: > iirc, there was only a small latency difference between HTX and PCI-E > versions of Infinipath. There was a big overhead difference. But the HTX product is retired, and the current DDR PCIe Infiniband chip has overhead similar to the HTX chip. I guess you must run a lot of 2-node 2-core jobs, if you're so concerned with ping-pong latency ;-) ;-) -- greg
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