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Re: [creduce-dev] parallel tuning
John Regehr <regehr@cs.utah.edu> writes:
> - parallelism 2 on a dual core
> - 3 on a 4-core
> - 4 on a >4 core
> How does this match with your experience?
I haven't really experimented with this.
I do think, though, that limiting parallelism to 4 is probably not a good
idea.
I used to run C-Reduce on Emulab's d820's, which have 32 physical cores and
128GB RAM. With 32 tests in parallel, C-Reduce was plenty snappy. I can't
imagine it would run as fast with only 4 tests in parallel, but I admit I did
not test this.
(Of course, I *could* test this, for some given set of reductions, but not
today. Today I need to focus on something else.)
Eric.
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Eric Eide <eeide@cs.utah.edu> . University of Utah School of Computing
http://www.cs.utah.edu/~eeide/ . +1 (801) 585-5512 voice, +1 (801) 581-5843 FAX