[Clusterusers] Opinions....

[Jaime Davila]

I would go with your expertize on this. I am fairly certain you're the 
one that knows best about this, from among all of us.

On 01/10/2014 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?
>

-- 
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Jaime J. Dávila
Associate Professor of Computer Science
Hampshire College
jdavila at hampshire dot edu
http://helios.hampshire.edu/jdavila
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