__/ [ Geico Caveman ] on Saturday 26 August 2006 18:37 \__
> Roy Schestowitz wrote:
>
>> __/ [ Mark Kent ] on Saturday 26 August 2006 08:38 \__
>>
>>> begin oe_protect.scr
>>> Roy Schestowitz <newsgroups@xxxxxxxxxxxxxxx> espoused:
>>>> TN Supercomputer Doubles Performance
>>>>
>>>> ,----[ Quote ]
>>>>| The most powerful supercomputer available for general scientific
>>>>| research in the United States has undergone an upgrade that's doubled
>>>>| its peak performance.
>>>> `----
>>>>
>>>> http://www.topix.net/content/ap/0348117876239545145621209521992668972191
>>>>
>>>> http://www.cray.com/products/xt3/specifications.html
>>>
>>> 75dBa at 3' - wow, that's one /loud/ machine... and 63A@400V 3-phase,
>>> 14kWh/rack is one /hot/ machine.
>>
>> I wonder what stuff Google can strut with their massive datacentres
>> (parallel as opposed to serial though, sharing the same storage media).
>> Sadly, Google is too secretive about its datacentres, which appear to be
>> many steps ahead of the competition. Bandwidth-wise. Performance-wise. And
>> speaking of /hot/ machines, Google is building some serious cooling plants
>> that are difficult to ignore. They such out a lot of energy, those
>> monsters...
>
> Why not use the energy released thus to drive a steam turbine, or some such
> thing ?
>
> Running a cooling plant to take off the heat seems to be such a waste.
True. Here at Manchester Computing, emitted energy is recycled to heat up the
building. However, even with good routing of the hot air, there is a limit
to what you can achieve without air conditioning. And you can't just have
turbines running inside the server room, so for high density you need to
channel the heat /away/. I'm not too familiar with cooling techniques
though... but I am aware that Google will be /relatively/
environment-friendly (I think I read it somewhere) while they index those
billions of pages. Sun servers are said to be more energy efficient than
typical Linux servers, according to a benchmark I recently saw.
Best wishes,
Roy
--
Roy S. Schestowitz | "Web 2.0 is everything that can be spammed"
--Unknown
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