Author: Ricardo Gibert
Date: 02:46:57 09/13/03
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On September 13, 2003 at 05:02:48, Sune Fischer wrote: >On September 13, 2003 at 00:41:34, Ricardo Gibert wrote: > >>On September 12, 2003 at 14:13:55, Gerd Isenberg wrote: >> >>Just use zobrist hashing with a power of 2 table size? I don't understand the >>motive to do otherwise. > >The motive is efficiency. >Say some user gives your program 30 MB hash, if you do the power two thing you >can only use 16 MB, thats 14 MB wasted. I understand the motive for accepting a greater range of table sizes for the TT, but not for Pawn HT. More than 16Mb is won't help much for the Pawn HT. Those additional 14MB will probably be wasted anyways. > >Sure you may run 0.1% faster, but with a smaller hash you also get a bigger >tree. > >Of course you can try and find some other way to use those 14 MB, like >allocating another small table, maybe that will use 8 MB, so you have 6 MB left. >Then you can allocate another table.... > >Frankly, I find that silly, chess programs are complex enough as it is. > >-S.
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