cooling

[Steven Berukoff]

Hi,

We just purchased ~150 dual AMDs, and are cooling them with 4 Fujitsu
ceiling-mounted air-conditioners: about 50kW of AC cost us about $25k,
which is about 10% of the cost of the machines.

So yeah, you're getting screwed.  It might be that your facilites people
are thinking that you need one huge monolithic cooling system, and you
may; however, cooling in a piecemeal way ends up costing a lot less.

Steve

> We are looking at the facilities issues in installing a beowulf on the
> order of 500 nodes.  What facilities is telling us is that it is going
> to almost cost us more to buy the cooling for the machine than to buy
> machine itself.  How are people making the air conditioning for their
> machines affordable?  Have we miscalculated the HVAC loads?  Are we
> being over charged?  
> 
> thanks for any guidance.
> 
> -- 
> | Robert Heckendorn                        | We may not be the only
> | heckendo at cs.uidaho.edu                   | species on the planet but
> | http://www.cs.uidaho.edu/~heckendo       | we sure do act like it.
> | CS Dept, University of Idaho             |
> | Moscow, Idaho, USA   83844-1010          |
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=====
Steve Berukoff					tel: 49-331-5677233
Albert-Einstein-Institute			fax: 49-331-5677298
Am Muehlenberg 1, D14477 Golm, Germany		email:steveb at aei.mpg.de