James Lux, P.E.
Task Manager, SOMD Software Defined Radios
Flight Communications Systems Section
Jet Propulsion Laboratory
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-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Prentice Bisbal
Sent: Tuesday, September 16, 2008 1:36 PM
Cc: Beowulf
Subject: Re: [Beowulf] MS Cray
Gus Correa wrote:
> Dear Beowulf and COTS fans
>
> For those of you who haven't read the news today:
>
> http://www.theregister.co.uk/2008/09/16/cray_baby_super/
>
> IGIDH (I guess it doesn't help.)
>
> Gus Correa
>
Quote from article:
"It's also attempting to lure scientists and researchers with discretionary IT
budgets to forget using shared, giant clusters and get their own box and tuck
it in behind their desk where no one can see it to run their workloads locally.
The personal supercomputer is not a new idea, but this is the first time that
Cray is trying it out in the market."
That will work great until the newbie scientists find that airflow into a
computer tucked in "behind their desk where no one can see it" is piss poor,
and that fans powerful enough to provide adequate airflow "behind the desk
where no one can see it" are going to be LOUD.
-------------------
Well, plus ca change, plus c'est la meme chose..
The same argument was made when the IBM1130 came out, or the IBM 5150, for that
matter..
It doesn't have to be loud, and the thermal issue can be dealt with in a
variety of ways (some easier and more practical than others).. I could
probably support a kW load in my office without causing huge problems
(especially if I leave the lights off), and the amount of computation you can
get for a kilowatt is always growing.
There is a huge psychological advantage to having the computer physically under
your management and control. You don't have folks trying to "optimize the use
of a valuable institutional resource" with scheduling, etc. You might be
willing to tolerate a factor of 2 hit in performance for the ability to not
have to account for anyone else about how much you're using or not using it.
Jim
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