[Beowulf] multi-threading vs. MPI

Greg Lindahl lindahl at pbm.com
Sat Dec 8 16:17:25 EST 2007


On Sat, Dec 08, 2007 at 12:55:07PM -0800, Martin Siegert wrote:

> In short: the performance of OpenMP code isn't even close to that of the
> MPI code.

Thanks for more concrete data, Martin, do you have a URL for some more
detailed results? I'd love to have it next time this question comes
up.

Here's an interesting recent Usenet posting on this topic:

http://groups.google.com/group/comp.parallel/msg/7f4de81edc0575d1

-- greg
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