Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Neverending story with incomplete tablebases

Author: Sune Fischer

Date: 01:44:10 08/18/03

Go up one level in this thread


On August 17, 2003 at 23:16:19, Uri Blass wrote:

>>If you ever do a parallel search, forget about determinism.  If you don't,
>>forget about winning games.  :)
>
>one cpu has chances not only to win games but also to win tournaments.
>
>A lot of programs won tournaments inspite of having only one cpu.

I think you take his words too literally, of course you can win games even if
you enforce determanism.

I think SMP is ~50 Elo just sitting there for the taking. You can go elsewhere
and find 50 Elo (perhaps) but why bother, why not take 'em where you see 'em?

>The king did it in the dutch championship when more than one cpu of some
>opponents did not help them

Was that the one where it drew against Shredder and lost against Fritz?
Perhaps with a dual it could have won the tournament with an even bigger margin
:)

>Same for Shredder in the past when Ferret,Junior,Fritz had more than one cpu.

I'm sure if it had been a longer tournament Shredder would have had some
problems against equal opponents on faster hardware.
In short tournaments anything can happen of course, perhaps Shredder just had a
better opening book?

>When computers become faster I expect the advantage of 2 cpus against 1 cpu to
>be less important and things like better order of moves may be more important.

Maybe, or maybe not. Perhaps duals are just the beginning, quads will one day
get cheap too, I hope :)

>It is also possible to be deterministic with more than one cpu.
>You may lose some speed relative to being not deterministic but still do
>significantly better than one cpu.
>
>Uri

If those ~50 Elo shrink to ~20 because of the restictions, then I'd begin to
question whether it was worth it.

-S.



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.