Author: Brian Katz
Date: 01:28:57 02/03/02
Go up one level in this thread
On February 03, 2002 at 03:10:09, Jose Menendez wrote: >On February 03, 2002 at 00:18:55, Brian Katz wrote: > >> >>Can anyone please explain this? >> >>I am a USCF rated player, presently rated at 1920, but usually in the upper >>1900's to low to mid 2000's. Highest rating acheived was 2070. >> >>I just recently played a 5 minute blitz game (no increments for either side or >>added time, just straight 5 minute blitz) vs. Fritz 7 with the latest upgrade: >>modification date January 11, 2002. >>I drew this game quite easily, which I find puzzling. >>Could it be that the Hash Tables I set were too high for my processor speed? I >>have plenty of ram. I am using a Pentium II 350 MHz Processor with 384 sdram. >>I set the Hash Tables for 128 MB by the advice of some on this site. >>According to Steve Lopez from the Chessbase helpline, the formula for Hash >>Tables should be: >> 2 X processor speed X avg. seconds per move. >> This was based on the Fritz 5 program, which allowed you to set the Hash Tables >>to an exact number of KB's, such as 16,384. Since Fritz 6 and Fritz 7 have Hash >>Tables with MB settings, you would have to divide your figure by 1000. >>So for a 5 minute speed game which is 300 seconds, you would have to divide an >>average game of 50 moves into that. >> Since the first 10 moves on an average are played instantly, with practically >>zero time used by the program, it is more practical to divide 300 seconds by 40 >>moves rather than 50 moves. So that would be: >> 2(350)=700 X (300 /40)=7.5 = 5250 / 1000 = 5.250 MB Hash Tables. >>So you would probably set it at 4-8 MB Hash Tables according to this formula. >> Chessbase states that if your hard drive doesn't have any disk activity at all >>when you start the engine, then your Hash Tables settings are too timid. They >>suggest that for Blitz games, 4-64 MB Hash Tables should be enough. Yet, the >>Optimize Strength feature in Fritz 7 and Fritz 6 is only available for Blitz or >>long games. Such is the case with the Fritz 6 interface. It is supposed to be >>the case with Fritz 7 as well, but it works with all the other levels too. >>(Another Bug? for Fritz 7?) >> The Optimize Strength feature will set your Hash Tables at the highest possible >>setting for your amount of Ram! That definitely conflicts with the above >>mentioned 4-64 MB Hash Tables suggested for Blitz games. This is confusing to >>me. >>Please give your opinion on the Proper Hash settings for a 5 minute speed game >>with a Pentium II 350 MHz Processor, with 384 MB SDRAM. Also, a general formula >>for any time control would be appreciated based on processor speed. >> Perhaps the mention of disk activity was really directed at computers a few >>years ago, which usually for the most part had 32 to 64 to 128 MB SDRAM. So hard >>disk activity (swapping) was quite common. Lately, many have 256 MB SDRAM and >>up! Fritz 7 doesn't swap on my computer until perhaps 192 to 256 MB Hash Tables >>are set. Usually closer to 256 MB Hash Table. >> Was the fact that it was set for 128 MB Hash Tables too high for this game? >>Only about 2-3 minutes of time was used by me and less for Fritz 7. >> >> Here is the game for anyone who is interested. I usually get crushed by this >>program. That is why drawing this game as easily as I did (no take backs >>involved) seems very odd to me. >> >>Opinions would be greatly appreciated. >> >>Katzparov,Brian (1920) - Fritz 7 (2676) [D43] >>5 minute speed game HP Pent II 350 MHz, 02.02.2002 >> >>128MB, Fritz7.ctg, Pentium II 350 MHz 384 SDRAM >> 1.d4 d5 2.c4 c6 3.Nc3 e6 4.Nf3 Nf6 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 Nd7 8.Bd3 dxc4 >>9.Bxc4 g6 10.0-0 Bg7 11.Rc1 0-0 12.e4 e5 13.d5 Nb6 14.Bb3 Rd8 15.Qe2 Bg4 16.Rfd1 >>Rac8 17.dxc6 bxc6 18.h3 Bxf3 19.Qxf3 Qxf3 20.gxf3 h5 21.Rxd8+ Rxd8 22.Na4 Rd6 >>23.Nc5 Bh6 24.Rc2 a5 25.Na4 Nxa4 26.Bxa4 Rd2 27.Rxd2 Bxd2 28.Bxc6 Bc1 29.b3 Kf8 >>30.Kf1 Ke7 31.Ke2 g5 32.Kd3 Kd6 33.Be8 Ke7 34.Bc6 Kd6 35.Be8 Ke7 36.Bc6 Kd6 >>37.Be8 ½-½ >> >>[D]4B3/5p2/3k4/p3p1pp/4P3/1P1K1P1P/P4P2/2b5 b
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.