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Subject: Re: Question -Dual Core engine match

Author: Chessfun

Date: 05:20:29 11/02/05

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On November 02, 2005 at 08:03:56, James T. Walker wrote:

>The dual core machine is new to me so I may ask stupid questions from time to
>time.
>When playing an engine/engine match with a dual core and both engines are
>"single cpu" it seems that they are automatically given one cpu each.  That is
>great!  What happens in the same situation when one of the programs is "Deep
>Sjeng" or some similiar program.  Does Deep Sjeng try to use both CPUs or does
>it limit itself to only one?  Is there any way to check/verify what is
>happening?
>Thanks,
>Jim


Look at it this way 100% CPU. If you use an engine just one then it uses only
50% CPU. If ponder is off then it uses only 50% when it is to move.

If the match is ponder off then each engine only uses 50% on it's turn to move.

If a dual is used it will use 100% on it's move and then on the opponents move
the opponent will use 50%\

In my case right now I have two chessbase interfaces open Chessprogram7 and
Chessprogram8. Each is running engine matches with each match having 50% CPU and
each engine with ponder off.

You can check simply in task manager and see engines switching. You can also
assign CPU1 and CPU2 to a specific target lets say CPU1 to ChessProgram7 and
CPU2 to chessProgram8.

Sarah.




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