[Beowulf] small-footprint MS WIn "MinWin"

Greg Lindahl lindahl at pbm.com
Mon Oct 22 16:10:01 EDT 2007


On Mon, Oct 22, 2007 at 07:49:55PM +0100, John Hearns wrote:

> At least on the interconnect side of things, VMs may not be a big
> performance drain. There is an IBM paper which measures Infiniband
> performance in native and Xen machines, and finds a few percentage loss
> in performance.

Yeah, now imagine if you were using an interconnect with a high
message rate, instead of 2-generation-old InfiniBand.

It probably does fine for I/O. But for MPI?

-- greg


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