Author: Jorge Pichard
Date: 08:11:27 07/23/04
Go up one level in this thread
On July 23, 2004 at 06:37:58, Uri Blass wrote: >On July 23, 2004 at 06:19:02, Joachim Rang wrote: > >>On July 22, 2004 at 12:56:49, Uri Blass wrote: >> >>>Conditions: >>> >>>Jonny 256 mbytes hash >>>Movei 64 mbytes hash(I suspect that more than it is counter productive for all >>>time controls and even 64 mbytes is counterproductive for fast time control >>>except very fast time control of 3 minutes per game or faster because in very >>>fast time control movei does not waste time on clearing the hash because it >>>assumes that it has no time for it and the old entries in the hash are still >>>productive for better order of moves and movei does not suffer much from useless >>>entries) >>> >>>Hardware A64 3000(2ghz) >>> >>>Movei-Jonny 36.5-13.5 at 1 minutes per game >>>Movei-Jonny 34.5-15.5 at 2 minutes per game >>>Movei-Jonny 33.5-16.5 at 3 minutes per game >>>Movei-Jonny 27-23 at 4 minutes per game >>>Movei-Jonny 23.5-26.5 at 10 minutes per game >>>Movei-Jonny 2.5-3.5 at 20 minutes per game >>> >>>games played under winboard. >>>It seems that Movei is simply weaker at long time control and it is not >>>surprising because it has poor order of moves and bad use of hash tables. >>> >>>The surprise that I have so far is the good results of it in WBEC. >>> >>>Uri >> >> >>what is a bit disturbing it, that you gave different Hash to different >>opponents. As you wrote 256 MB is more than enough for a 1 0 game and perhaps >>even hurts Jonny in the fast games (just a speculation). >> >>regards Joachim > >Based on watching some games it did not seem to me that big hash hurted Jonny(it >is not a program that clears it's hash after it's moves and I believe that it >did not lose games on time but I will check later). I used 64 Mb of hash for Jonny at blitz and it did great at Blitz, but at longer time control game in 5 hours I'm giving Jonny 256 MB. Jorge > >I think that the rule should be for most programs that bigger hash is never >worse except programs that clear the hash between moves(It is the case for >crazybishop based on asking here but I did not ask about Jonny before starting >the match). > >practically it seems that Jonny used less than 256 mbytes but more than 200 >Mbytes and maybe it cannot use exactly 256 mbytes(I used configuration for 256 >mbytes that comes with the engine). > >The result in the match at 20 minutes per game was 9-9 the last time that I >looked and now I am not near the computer that is doing the match and even in >case that I were near the computer the only way to check the results could be by >looking at the pgn of the games(I simply followed every game from 3.5-2.5 for >Jonny to 9-9 so I did not need to look at the pgn at that time). > >I expect the match(20 minutes per game) to be finished in a few hours and I will >report the results. > >Uri
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