Author: Harald Faber
Date: 07:58:49 12/18/98
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On December 18, 1998 at 10:47:07, blass uri wrote: >>>In order to change the size of the hash tables I looked at c/program files >>>/chessmaster6000/cm and changes ttable_size but I am not sure if I did the right >>>thing because I found that there is ttable_size also in Cmdefault >>>and ttable_size is 20 in this file. >>> >>>should I change cm or cmdefault? >>Change the CM.INI > >I looked for the CM.INI and the computer gave me 1 file with the name cm but I >am not sure if I did the right thing because I did not find a difference in a >test position that I gave the computer when I change the hash tables > >here is the position: >r4rk1/2p3pp/p7/1p1pq3/8/2P2N2/PPQ2KPP/R1B5 w - - 0 1 > >How much time does it take chessmaster to find that Kg1 is losing(evaluation >-2.08) with ttable_size=26 and with ttablesize=10? Sorry, I am in office and can't check but there is no need to be 4x faster. >I found that in both cases the result is similiar >15 minutes and 4 seconds with ttable_size=26 and less than 18 minutes with >ttable_size=10(I do not know the exact time bexause I did other things in the >computer at the same time) 15min<->18min is 20%. I admit I haven't investigated much the differences between the sizes of hash. Explanations and experiences for the size at which time control are well known. But 20% seems OK for me. Another point is that faster engines would profit more from larger hash tables.
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