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Subject: Re: Chess pc program on super computer

Author: Vincent Diepeveen

Date: 17:52:41 08/05/05

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On August 05, 2005 at 17:13:49, Peter Berger wrote:

>On August 05, 2005 at 14:40:53, Vincent Diepeveen wrote:
>
>>Crafty is quad opteron dual core, so is diep (quad opteron dual core 1.8Ghz
>>sponsor: www.hotels.nl ), shredder quad opteron dual core 2.2Ghz minimum
>>(transtec) and probably Junior (HP) be too.
>>
>>Did you forget all your "superior hardware always wins" complaints in 2004?
>>
>>Vincent
>
>I am not so sure that anyone besides Diep will run on a Quad Opteron Dual Core
>with 8 threads/processes, so maybe you'll be the hardware monster this year if
>you do so successfully. Will you?
>
>I don't think any of the major entries ever ran with more than four threads at a
>recent championship , besides your unsuccessful attempt at WCCC2003 with the
>supercomputer and some non-PC-like-entries.
>Peter

WCCC2003 from hardware viewpoint was very succesful. 90%-100% scaling last few
rounds during the entire game. The bad thing from 2003 was that for 1.5 years i
had no time to improve diep's eval, apart from 0 testing been done.

I would be very amazed if diep is the only engine using a quad dual core at
world champs 2005.

Actually that hardware is far cheaper than the other quad machines that might be
around there. Shredder will be able to easily get a quad opteron dual core, so
will Junior.

For shredder i realize that a 2.6ghz opteron with a tuned bios is far more
interesting than running at 8 cpu's 2.2Ghz dual core anyway, thanks to speedup
reasons, and memory latency where shredder relies upon a lot.

Junior i have no real idea. They are not giving out much info, i'll see it at
their nodecount when they're there.

Besides, Bob still has 8 days to modify crafty to get it to work at dual core.

Any of all these guys can lay their hands on faster dual core chips than
hotels.nl great machine, yet if they can't use it, that means more than ever
that the incentive to run on faster hardware is getting less interesting to
them. In a few years time with 16 core processors, who knows, perhaps everyone
is happy enough to just take a laptop with a 8 core processor as that's plenty
fast.

Vincent








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