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Subject: Re: We speak about a Chess-Base engine !

Author: Vincent Diepeveen

Date: 14:00:45 12/18/00

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On December 18, 2000 at 15:52:05, Frank Quisinsky wrote:

>On December 18, 2000 at 13:43:41, Vincent Diepeveen wrote:
>
>>On December 17, 2000 at 14:24:13, Frank Quisinsky wrote:
>
>Hi Vincent,
>
>we speak about a Chess-Base engine !!
>All is not a problem !

>I can adjust threads = 1 and Deep Fritz used 1 processor on my dual machine. So

aha cool, didn't know chessbase also used the crafty enhancement
to allow to adjust the number of threats.

Where in the interface is that, i happen to own those progs and
probably never figured out where to do it in the interface.

>I can play with ponder engine/engine matches without any problems. Program A and
>Deep Fritz (program B in this example) get 1 processor !
>
>The reason for me is to see how good is the new version, because Frans say to me
>in Leiden that the new version (in Leiden T26 or T27) is much better (also with
>1 processor). I saw in my test games that Deep Fritz is better !
>
>Please check my News Ticker Page 42 for more information. Here you can find a
>picture from the engine settings of Deep Fritz.
>
>Best
>Frank
>
>>
>>I don't know how Frans implemented his parallellism,
>>but it doesn't sound like a good idea to run it parallel with
>>another engine playing against it, unless the
>>other program runs on a different computer.
>>
>>With 2 processors running 3 program threads/processes means
>>that one process in turn will not get system time and will
>>get blocked. In about 50% of the total time that will be one
>>of the parallel engines. If a parallel engine gets blocked
>>very likely real soon locks inside the engine will prevent
>>the other process from getting further too.
>>
>>Running a processor dual means you definitely NEED 2 free cpu's
>>(free of work load) otherwise the parallellism works against you.
>>
>>If you run diep dual on a single cpu for example then the first 30
>>seconds it will search like a couple of hundreds of nodes.
>>
>>Only when the locks are near the root and the search depth is huge,
>>then the problem gets a lot smaller as both can search without
>>locking each other too much.
>>
>>>Hi,
>>>in the next 3 months I play with 5 new engines in my CCE tourney
>>>(biggest computer chess tourney).
>>>
>>>01. Tourney "B": WB LambChop 10.x (very strong, I think 2.425 - 2.525 ELO).
>>>02. Tourney "B": WB Insomniac 0.69a (older version with 2.450 - 2.475 ELO).
>>>03. Tourney "A": CB The Crazy Bishop (I believe 2.375 - 2.425 ELO).
>>>04. Tourney "A": CB Nimzo 8 (I believe 20 - 40 ELO stronger as Nimzo 7-32).
>>>05. Tourney "A": CB DeepFritz (I believe 20 - 40 ELO stronger as Fritz 6a).
>>>
>>>We will see ...
>>>New results daily !
>>>
>>>Dual Pentium III 733 MHz, Ponder = on, 64 MB Hash-Tables, 40 moves in 40
>>>minutes, 4-piece nalimov TBs with 4 MB cache !
>>>
>>>More information on my webpage !
>>>http://amateurschach.in-trier.de
>>>
>>>Have a nice day !
>>>
>>>Best
>>>Frank



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