Doug Hughes disturbed my sleep to write: > Is your application really strictly CPU bound or is there a memory/IO > component?
My understanding is that it's definitely CPU bound. > You might be setting your bar a bit low. You could potentially get a > full rack of 1U servers for less than that (40 U * 8 cores * 2 CPUs). Agreed; I was kind of lazy in my summary, which was based on blades. (Half a rack of blades will just about max out our power budget per rack.) > I'd recommend looking at the Supermicro Twin Squared if you want to > stick in half rack configuration. You'll get better power efficiency and > screwless maintenance/replacement. Dell has a similar product for a > similar price, but not as easily maintainable. Thanks for the suggestion. I've had a brief look at the C6500 from Dell and noticed the web-only interface for BIOS/ILOM/what have you...if there was a CLI, the reseller didn't notice it. Was that what you were referring to, or were there other things that make you say it's not as maintainable? > The twin squared has 4 servers in 2 U and each is on an independent > sled. I have a favorite supermicro dealer who will rack the whole > thing, cable it to my specifications, do an acceptance test, and > ship it as one unit for a relatively low install fee. They even > label the machines and cables and color code according to our > specs. Finally, they give us a spreadsheet with all of the IPs, mac > addresses, etc. as part of the deliverable. I hadn't thought about getting the vendor to do the test. Do you do that because it's convenient, or just because you trust the vendor that much? > Let me know if you want a vendor reference. (shipping an entire rack > as one unit is optional) I'm at a Canadian university, so there are conditions for funding that are a pain to follow if you're not familiar with them...so the vendor reference may not work out. > Linpack is a good, general purpose, HPC benchmark. Thanks again for the suggestion. /me scurries off to bookmark the web page Hugh -- Hugh Brown http://saintaardvarkthecarpeted.com Because the plural of Anecdote is Myth.
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