Author: William Penn
Date: 07:31:22 04/23/04
Go up one level in this thread
On April 21, 2004 at 11:34:09, Stefan Meyer-Kahlen wrote: >On April 21, 2004 at 09:49:31, William Penn wrote: > >> >>I'm not sure if I made myself clear in my original post. I'm talking about... >> >>(1) For the sake of an example, let's say it is white's turn to move initially >>in a game in progress which has been saved to disk. >>(2) So the game is loaded from disk, and Shredder is set to calculate for a long >>time (overnight) to try to find white's best move. I have always used Infinite >>Analysis mode for this process. >>(3) Then I press the spacebar, and Shredder makes the best move it found on the >>chessboard. >>(4) Now it is black's turn to move, and ideally Shredder should retain the >>analysis obtained when white's move was calculated. It should not have to start >>a calculation from "ground zero" again (at the beginning, with no knowledge). If >>it must start at ground zero again, this is highly (absurdly) inefficient. > > > >Yes, doing this would be stupid. This is why Shredder is not doing this. > >Stefan I see now that sometimes Shredder 8 remembers the prior analysis after pressing spacebar, so that calculation of the next move (black to move, in my example) doesn't have to begin at ground zero in Infinite Analysis mode. But sometimes it doesn't behave in this fashion, and apparently discards the prior analysis. This is after several hours of calculation in Infinite Analysis mode, so a lot is lost when the prior analysis is discarded. This parallels my other problems with Shredder 8 in the CB GUI, where nothing seems reproducible, and the errors only happen "sometimes" and are seemingly random. My best hunch is that the CB GUI is just not compatible with Shredder's handling of hash tables in the Windows XP Home environment on an Athlon processor. For example when I try to set the hash size above 784MB on my computer, the maximum according to the CB GUI, it refuses and sets it for 512MB instead. I don't have such problems with the Classic GUI, which accepts larger hash sizes just fine. For example I've used 832MB hash with Shredder 8 in the Classic GUI without any problems. The CB GUI is of course designed to work properly with Fritz engines, but isn't working properly with the Shredder 8 engine in my experience. WP
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.