Author: Aaron Gordon
Date: 06:07:44 10/12/04
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On October 11, 2004 at 19:25:22, joseph soney wrote: >Could someone please explain to me this setting. I am trying to find the >optimum hash setting size for Blitz games under five minutes. This Shreddermark >function seems to not help me at all. I have done tests with time of 5-L and >various hash table sizes. Here are some: 16-96 hash = 5569 score; 128-192 hash >= 3712 score; 256 hash = 2828 score; and last 512 hash = 1679 score. Now, you >would think the high score would give me the best overall playing result but >sadly this doesn't appear to be true. It appears to play the best at 512, but >may get into time trouble. Anyway, I'm more lost than ever. Could someone >either (a) tell me how to use Shreddermark so I can find these hash table sizes >out; or (b) just tell me the hash table size I need for 5 minute and under games >based on this configuration: Dual AMD Opteron 250, 1.5 gig pc3200 ram. >Thanks in advance >Please somebody help me. The Shreddermark is seriously messed up. Don't bother with it, it is a waste of time. Basically for your system the best hash settings would be 256mb in lightning/bullet (1 0, 2 0), 512mb in blitz games (3 0 to 14 0).. anything over 15 0 use 1024mb. If you want to test NPS (more important is time to find the right move), or run test sets with different hash sizes you'll need to lock your learning file. To do this you'll need to rename your shredder.plr file in your Chessbase\engines directory. Now, go into Shredder and setup a position.. anything. 2 kings and 2 pawns. Start infinite analysis so it will create another shredder.plr file. Exit, go to your engines directory and right click/properties on the new shredder.plr. Set it to read-only. Now you can do your testing with test-sets or whatever else you'd like without the learn file messing up the results.
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