Author: Brian Kostick
Date: 04:58:29 09/29/03
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On September 29, 2003 at 04:03:10, Gian-Carlo Pascutto wrote: >It seems that the ChessBase UCI support contains a rather 'convenient' bug >that severely handicaps UCI engines when playing tournaments under the >ChessBase interface: > >An extract from Deep Sjeng's logs: > >First game: > >< setoption name Hash value 128 >Allocated 4194304 hash entries, totalling 134217728 bytes, in shared memory. > >All subsequent games: > >< setoption name Hash value 1 >Allocated 32768 hash entries, totalling 1048576 bytes, in shared memory. > >So, they basically disable hashing for UCI engines after the first game. > >-- >GCP I'm sure your feedback and suggestions to ChessBase have helped them get to UCI.dll version 1,0,1,4. I hope you will try for another and we Fritz 8 users thank you. I think this will be a better approach than letting them discontinue, as they did with the WB-CB adaptor. This situation about hash table makes me wonder about ChessBase.eng files as they are essentially adaptors to engine authors .dll's. Also depending on how a UCI engine handles hash memory on the new hash command the changed memory use may be observable with TaskInfo or similar utility. I will see if I can observe this. BK
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