[Beowulf] ...Re: Benchmark results
lindahl at pathscale.com
Thu Jan 8 20:52:51 EST 2004
On Thu, Jan 08, 2004 at 04:14:38PM -0800, Jim Lux wrote:
> >Perhaps I'm overly optimistic, but writing a kernel module to achieve
> >cluster-wide microsecond-level clock synchronization just might be
> I am entirely certain that this can be done, and may have already been
> done. It's such a useful thing to "know, exactly, what time it is"....
Octiga Bay claimed to have done it at SC. However, they made it sound
like they did a lot of work to get it going, as what they were doing
was enabling MPI programs to run in lock-step on microsecond
timescales. That's much harder than just getting global times.
No doubt SGI has done something clever on their big Altix boxes.
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