Author: blass uri
Date: 08:38:49 12/18/98
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On December 18, 1998 at 10:58:49, Harald Faber wrote: >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. 1)I am sure something is not allright because I changedthe ttable_size to -100 and expected an error message from the computer but I found that chessmaster can analyze 2)I did not say that there is a factor of 20%(I did other things in the computer at the same time in the test when ttable_size=10 3)I expect a bigger factor than 20% because ttable_size=10 is only one Kbytes hash tables when ttable_size=26 is 64 Mbytes Uri Uri Uri
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