[Clusterusers] Opinions....

Wm. Josiah Erikson wjerikson at hampshire.edu
Fri Jan 10 13:36:11 EST 2014


Those "nodes" I speak of are actually four nodes each - sorry if I 
confused anyone there :)
     -Josiah

On 1/10/14 1:33 PM, Wm. Josiah Erikson wrote:
> What I meant by "larger" in this case was faster cores, more RAM, so 
> everybody should be able to take full advantage of them. They'll be 
> the closest thing to (or maybe faster than) the machine Lee's got in 
> his office. Same processors, or very similar, I think. So I'll do both 
> - a $3100 node and another node like the one we already have in Rack 
> 2. Cool. Thanks guys.
>     -Josiah
>
>
> On 1/10/14 10:48 AM, Thomas Helmuth wrote:
>> For my needs, I think more cheap nodes is better than fewer awesome 
>> nodes. Rack 2 has been great for most (or all?) of the things I've 
>> wanted to do since it was put in. I rarely use the larger nodes at 
>> all, partly because others can make better use of them and partly 
>> because I've had weird error when I try to use them.
>>
>> Of course, I'm mostly happy with the computing power we have now, so 
>> if others want larger nodes, their voices should probably take priority.
>>
>> -Tom
>>
>>
>> On Fri, Jan 10, 2014 at 10:41 AM, Wm. Josiah Erikson 
>> <wjerikson at hampshire.edu <mailto:wjerikson at hampshire.edu>> 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 <tel:%28413%29%20559-6091>
>>
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>>
>>
>>
>>
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>
> -- 
> Wm. Josiah Erikson
> Assistant Director of IT, Infrastructure Group
> System Administrator, School of CS
> Hampshire College
> Amherst, MA 01002
> (413) 559-6091
>
>
> _______________________________________________
> Clusterusers mailing list
> Clusterusers at lists.hampshire.edu
> https://lists.hampshire.edu/mailman/listinfo/clusterusers

-- 
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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