[Beowulf] Power per area

Jörg Saßmannshausen sassy-work at sassy.formativ.net
Tue Mar 10 15:56:51 PDT 2020

Dear all,

yes, there is a max load of the floor and you really should stick to that, 
even though that might open a hole, pardon, a door for a new data centre. :-)

There are various way of getting more cooling done. You can use doors which 
are cooled, the already described plates on the CPU, you can basically use a 
large trough and put your nodes in there (the trough is filled with oil, heat 
it up enough and you can fry your chips (not)), you can do that smaller as 
Iceotop demonstrated:

I guess there are a number of ways you can address the problem. Multi-core 
CPUs, like the new AMD ones, might also be a solution as you can get more 
cores per area. 

I hope that helps a bit.


Am Dienstag, 10. März 2020, 20:26:18 GMT schrieb David Mathog:
> On Tue, 10 Mar 2020 15:36:42 -0400 Scott Atchley wrote:
> > To make the exercise even more fun, what is the weight per square foot
> > for
> > immersion systems? Our data centers have a limit of 250 or 500 pounds
> > per
> > square foot.
> I am not an architect but...
> Aren't there two load values for a floor?  The one I think you are
> citing is the amount of weight which can safely be placed in a "small"
> floor area without punching through or causing other localized damage,
> the other is the total weight that can be placed on that floor without
> the building collapsing.  If the whole data center is on the ground
> floor sitting right on a concrete slab with no voids beneath it I would
> expect the latter value to be huge and not a real concern, but it might
> be less than (500 pounds per square foot) X (total area) on the 2nd or
> higher floors.
> Regards,
> David Mathog
> mathog at caltech.edu
> Manager, Sequence Analysis Facility, Biology Division, Caltech
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