[Beowulf] 'liquid cooled' racks

Daniel Kidger daniel.kidger at clearspeed.com
Wed Dec 6 07:20:35 EST 2006


In spite of many of the slides saying "ISR Propiatory and Confidential" 
I did find this presentation on the web:

http://www.vita.com/cool/pres-2004/1430-tilton.pdf

see slide 11 for a photo of what they are doing.

Slide 18 implies there early market is for Defence systems - I guess getting
rid of hot air on a submarine is a bit tricky?

I am at a UK HPC Conference today (so is Greg L for that matter)
One of the speakers said he was evaluating Spraycool to retrofit to his
existing cluster.

So if these guys spray *downwards* on the chip - what is the risk of a blocked
tube causing the Flurinert to catch fire?

Daniel

Dr. Daniel Kidger, Technical Consultant, ClearSpeed Technology plc, Bristol,
UK
E: daniel.kidger at clearspeed.com
T: +44 117 317 2030
M: +44 7738 458742
"Write a wise saying and your name will live forever." - Anonymous.


-----Original Message-----
From: beowulf-bounces at beowulf.org [mailto:beowulf-bounces at beowulf.org] On
Behalf Of Eric Shook
Sent: 05 December 2006 21:10
To: Andrew M.A. Cater
Cc: beowulf at beowulf.org
Subject: Re: [Beowulf] 'liquid cooled' racks

It has been revived.  I was at their booth at SC06 asking about their 
technology.  The website is http://www.spraycool.com.

They offer it for a small set of Tier1 systems (or others for a cost I'm 
sure)

If anyone knows anything I would be interested in feedback as I am 
interested.

Thanks,
Eric

Andrew M.A. Cater wrote:
> On Mon, Dec 04, 2006 at 09:13:38AM -0600, Eric Shook wrote:
>> Hi Bruce,
>>
>> Our University is also looking into these racks.  We have also looked at 
>> other vendors with similar liquid cooling and something called 
>> "Spraycool" technology (limited in deployment) among others.  I would 
>> also be interested in the information you collect on or off the list and 
>> would be willing to share some information.
>>
> The only things I know that used spraycool technology were big machines 
> like Crays and ?? Thinking Machines ?? which dunked circuit boards in 
> freon and sprayed the liquid to keep it moving. Surely they can't have 
> revived that :)
> 
> AndyC
> 
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-- 
Eric Shook (319) 335-6714
Technical Lead, Systems and Operations - GROW
http://grow.uiowa.edu
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