[Clusterusers] Opinions....

[Lee Spector]

Josiah,

I like your plan.

FWIW I think (but without actual benchmarks) that I'm currently getting the best performance on the big newish mac pro in my office... Not sure what that means relative to your options here though, but your rationale and plan sounds good to me.

 -Lee


On Jan 10, 2014, at 10:41 AM, Wm. Josiah Erikson wrote:

> In buying more nodes for the cluster this year, should I prioritize:
> 
> (1) More cheap nodes like we currently have in rack 2 (I could buy somewhere around 12 - 16 more of those nodes, or maybe 4 if I go with option 2 as well)
> (2) Faster, more modern nodes with more RAM, but fewer of them (4 of them, to be precise)
> 
> I'm leaning towards (2), because:
>    1. They will last longer
>    2. We're almost out of space
>    3. We don't have very many really fast, semi-modern Intel nodes.
> 
> I can buy 4 nodes that are kindof like dual-processor six-core (so 12 cores total, shows up like 24 because they each have two execution units) versions of compute-1-17 with 48GB of RAM each for a total of $3100 used on eBay... or with 96GB of RAM each for $4600. Seems like a good plan (we don't ever need quite that much RAM though, do we?). Or I could buy a whole bunch more of what we've got in rack 2, though I'd have to get rid of a couple of the rack 1 nodes, and I couldn't put them on UPS, which is maybe OK, since the power problems seem to have been resolved.
> 
> Thoughts?
> 
> -- 
> Wm. Josiah Erikson
> Assistant Director of IT, Infrastructure Group
> System Administrator, School of CS
> Hampshire College
> Amherst, MA 01002
> (413) 559-6091
> 
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--
Lee Spector, Professor of Computer Science
Cognitive Science, Hampshire College
893 West Street, Amherst, MA 01002-3359
lspector at hampshire.edu, http://hampshire.edu/lspector/
Phone: 413-559-5352, Fax: 413-559-5438