[Beowulf] why we need cheap, open learning clusters
diep at xs4all.nl
Sun May 12 23:04:19 PDT 2013
On May 12, 2013, at 7:55 PM, Lux, Jim (337C) wrote:
> I just ran across an interesting anecdote (in Malcolm Gladwell's
> "Outliers"). It's in the context of Bill Joy, who commented that
> using timesharing and interactive systems compared to traditional
> batch/card deck submission was like speed chess vs chess by mail.
> That interactivity facilitated his spending thousands of hours
> working with software.
> I am a BIG believer in personal computing…
It's funny that you mention chess and personal computing at the same
Now i ran in 2003 Diep at a supercomputer. Diep is a chessprogram.
With respect to the previous mail i wrote regarding the university
Utrecht, until recently neary every year in the top50 universities of
it's interesting to mention that at university, after a while i was
allowed to run my chessprogram.
Yet other students when they tried to launch my chessprogram, it got
Official reason given: it was eating too much RAM.
In fact it was eating 8 MB ram. All machines had 64MB ram or more.
Reason to eat 8 MB is that i had discovered this to run a lot faster
at the unix machines (partly HP 60Mhz).
Not sure whether this had to do with a caching issue of the processor
or other circumstances.
Yet i argue that centralized supercomputing is really slow way to
develop your software. Personal computing is simply a faster way to
develop your codes.
The real disadvantage of supercomputers is that you always have to
wait for weeks if not months for a batch of a few hours to get executed.
In that sense supercomputing is a lot slower than chess by mail,
where you have 1 day a move on average.
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