<div dir="ltr"><div><div>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.<br>
<br></div>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.<br><br></div>-Tom<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Fri, Jan 10, 2014 at 10:41 AM, Wm. Josiah Erikson <span dir="ltr"><<a href="mailto:wjerikson@hampshire.edu" target="_blank">wjerikson@hampshire.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
In buying more nodes for the cluster this year, should I prioritize:<br>
<br>
(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)<br>
(2) Faster, more modern nodes with more RAM, but fewer of them (4 of them, to be precise)<br>
<br>
I'm leaning towards (2), because:<br>
1. They will last longer<br>
2. We're almost out of space<br>
3. We don't have very many really fast, semi-modern Intel nodes.<br>
<br>
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.<br>
<br>
Thoughts?<span class="HOEnZb"><font color="#888888"><br>
<br>
-- <br>
Wm. Josiah Erikson<br>
Assistant Director of IT, Infrastructure Group<br>
System Administrator, School of CS<br>
Hampshire College<br>
Amherst, MA 01002<br>
<a href="tel:%28413%29%20559-6091" value="+14135596091" target="_blank">(413) 559-6091</a><br>
<br>
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</font></span></blockquote></div><br></div>