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Subject: Re: Ponder on/off

Author: Odd Gunnar Malin

Date: 16:37:06 06/19/02

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On June 19, 2002 at 18:58:12, Dieter Buerssner wrote:

>On June 19, 2002 at 17:43:08, Odd Gunnar Malin wrote:
>
>>I have not done too many games with bringer but it seems that he force himself
>>to the front and therby get a boost if the user have decided that he will give a
>>boost for foreground programs.
>
>But isn't this problem almost insolvable in general. For example Chessbase
>native engines belong to the GUI process. So, running a ponder on match vs. and
>UCI or WB engine, will allways give the native engine more CPU time.

Yes, this is true :)
You have to force another program to foreground when testing against their
native engines.

>Even more
>extreme, I have seen this in a beta version of ChessAssistent, where the native
>engine got something like 90% CPU, while UCI/WB engines only got 10%, in ponder
>on matches.

In their latest build (all 6.1 versions) the opposite is true if you try to
lower the priority from the gui. Eg. Winboard/UCI engines run at normal priority
when the native engine is lowered.

Odd Gunnar

>
>Regards,
>Dieter



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