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Subject: Re: Some thoughts for those who are considering to buy a Dual processor PC

Author: Frank Quisinsky

Date: 16:04:03 03/26/01

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Hi,

>I do not disagree, but my post was about the increase in playing strength from a
>dual system. Maybe it was directed more at those who think that they are going
>to crush everybody on the chess servers with an expensive dual system. :)

Yes, yes I know but I must write my cheese :-))

>However I do agree that there are other nice things you can do with a dual. It's
>just that people should know exactly how much stronger it is, and it is not much
>stronger.
>
>
>
>>02. Interesting is to make analyzes with two engines and full engine power under
>>different GUIs. You can created more accurate results because an result with 2
>>engines in the same time is better as a result with only one engine !
>>
>>03. I make some experiments with dual systems and I believe the same engine with
>>factor 1.7 - 1.8 is on a 1 GHz machine maybe 25 ELO stronger than on 1GHz single
>>Pentium III.
>
>
>Well your experience seems to confirm my figures.

Yes to 90% :-)

>>I think a dual system is at the moment the best alternative and people must only
>>buy a second processor, a little bit more ram, Windows 2000 or Windows NT and a
>>dual motherboard (at the moment is the best dual board in my opinion "ABit
>>VP6").
>>
>>For me not a question, a dual system is for chess the best system. For chess
>>players in chess clubs which make analyzes with computer programs, for computer
>>chess player (like engine-engine matches) and for my girlfriend (can looking
>>Miss Marple when I sitting for my dual system).
>>
>>By the way, I think the problem are the tablebases. You wrote here a very good
>>message and you speak about this problem. Engine-Engine games on one PC with
>>ponder and 5-piece tablebases are not very interesting. I believe that programs
>>which used the nalimov databases very agressive have here a problem. The engine
>>is very slow and programs which used in engine-engine matches the nalimov
>>tablebases not agressive have a better position.
>>
>>With 4-pieces I can`t see any problems with engine-engine matches on one PC with
>>ponder.
>
>
>If you are limited to 4 pieces TBs, then it's not an improvement at all!

This is right, but I think for engine-engine matches good enough. I hope mutch
other programmer will not read this but this is my opinion.

4-pieces = ~ 20 ELO more !
5-pieces = ~ 40 ELO more !

In my opinion not for all programs, I hope Ed will not see this or we have a big
problem (I have a problem) :-)

>Of course 5-men TBs are going to produce much more TBs hits, and much more work
>for the hardisk. And of course the gain you can expect from TBs is going down
>for a dual system.

Yes I think also!

>>I wrote in German a review about Deep Fritz with a lot of information about dual
>>systems.
>>
>>Gambit-Soft review page:
>>http://www.gambitsoft.com/_reviews/reviews.htm
>>
>>My German is really better :-)
>>
>>Furthermore, I am very happy that the Deep Shredder vs. The World match have an
>>interesting sponsor ... INTEL ... !
>>
>>Here, I am very happy that Intel have interest on chess events. But it is clear
>>... Dual Boards are for chess very important and I play my CCE tourney with an
>>Dual Pentium 733 MHz system. This system is now 10 months olt and the fastet new
>>AMD processor is not better as on my "old" Dual Pentium III system if I use
>>Crafty, Fritz, Junior, Shredder, Amy ...
>
>
>I disagree. 733*1.7=1.246GHz. There are AMD processors running faster than
>1.3GHz, so your dual 733MHz is already worse than a fast single processor AMD.

I disagree not (a super superb English) :-)
The most programs works faster on a Intel system, not on a AMD system.

But OK
we say its the same :-)

>>And ...
>>Do you have see an engine-engine match on a dual system ?
>>It`s fantastic to see current analyzes from 2 engines.
>>
>>I have more fun with my dual system.
>>Come time come Deep Gambit Tiger :-))
>
>
>Next Monday Gambit Tiger 2.0 will find its way to your dual. :)

And the way into my CCE tourney :-)
I play with Gambit-Tiger a CCE tourney "A" extra round !

>    Christophe

Best
Frank



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