[Beowulf] Quiet *and* powerful

[Joel Jaeggli]

On Sat, 13 Dec 2003, Andrew Latham wrote:

> koolance.com has rackmount cases that use a water cooling system that is both
> cool and quite. It also is a standard rackmount case that would free up some
> design issues..

it's also 4u...

in 4u I have 8 opteron 242 cpu's in 4 cases with three panaflo crossflow 
blowers ea which are quite bearable compared to screaming loud 8000rpm 
40mm fans.

> 
> 
> --- Daniel Pfenniger <daniel.pfenniger at obs.unige.ch> wrote:
> > Hi,
> > 
> > Its not a 1U, its a low-noise Linux P4 box, but really *low* noise: the 
> > transtec 1200
> > We bought these for offices precisely because these boxes are designed 
> > for low noise.
> > 
> >
> http://www.transtec.ch/CH/E/products/workstations/linuxworkstations/transtec1200lownoiseworkstation.html?fsid=342edfd38a845c179dd18ef965091b2d
> > 
> > In practice in the office the box can barely be noticed,  I can imagine 
> > a dozen or more
> > of these boxes would not disturb a normal conversation.
> > 
> >     Dan
> > 
> > 
> > Joshua Baker-LePain wrote:
> > 
> > >Yes, I know this has been discussed a couple of times, and that my stated 
> > >goals are at odds with each other.  But I really need the best bang for 
> > >the noise for a system that will reside in the same room with patients 
> > >undergoing diagnostic ultrasound scanning.  Our current setup (6 1U dual 
> > >2.4GHz Xeons, with about 11 little fans per node) is ridiculously loud, 
> > >and annoys both the patients and the physicians.  This is Bad.
> > >
> > >We're willing to pay for better, but don't want to take too much of a 
> > >speed hit.  Does anybody have a good vendor for quiet but still high 
> > >performing systems?  Is there any hope in the 1U form factor (my Opteron 
> > >nodes are somewhat quieter, since they use squirrel cage fans, but are 
> > >still too loud), or should I look at, e.g., putting Quad Opterons in a 3 
> > >or 4U case?  Or should I look at lashing together some towers (this system 
> > >also needs to be somewhat portable)?
> > >
> > >Thanks for any hints, pointers, recommendations, or flames.
> > >
> > >  
> > >
> > 
> > _______________________________________________
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> 
> =====
> /---------------------------------------------------------------------------------------------------\
> Andrew Latham -LathamA - Penguin Loving, Moralist Agnostic.
> 
> What Is an agnostic? -  An agnostic thinks it impossible to know the truth
> in matters such as, a god or the future with which religions are concerned 
> with. Or, if not impossible, at least impossible at the present time.
>  
> LathamA.com - (lay-th-ham-eh) - lathama at lathama.com - lathama at yahoo.com
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Joel Jaeggli  	       Unix Consulting 	       joelja at darkwing.uoregon.edu    
GPG Key Fingerprint:     5C6E 0104 BAF0 40B0 5BD3 C38B F000 35AB B67F 56B2


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