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Subject: Re: speed question

Author: Pham Hong Nguyen

Date: 00:11:27 08/20/04

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It is very hard for others to answer your questions. You should be the right man
to find the reasons and report them :)

Here are only my guesses:

- Your program may be worser than your rivals in longer time control. By using
faster computer and using the same time control, it turns out that you play a
longer time control games in your old computer.

- (more technique) Your search is little worser than the rivals, making some
gaps of search depths. In the old computer the difference may be very little,
say 0.5-1 ply. In the new computer when your program can search deeper, say 1
ply, but your rivals could search more 2 plies. Thus the gaps between yours and
the rivals are expanded to 1 ply, or around 50-70 ELO.

Pham



On August 20, 2004 at 01:55:19, Daniel Shawul wrote:

>
>i used to work my chess on a 1.8GHZ PC.
>On that PC DanChess(slower program) can score good point
>against some fast programs with high NPS. But now when i
>changed to a 2.8GHZ PC things are different. my prog has
>really a very hard time against those engines. My question is
>both programs are speeded up by the same amount,so why the difference? how much
>are the other programs benefited? usually i test at 40 moves in
>3 minutes.what is the equivalent of this on a 2.8ghz pc.



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