Author: Uri Blass
Date: 15:01:11 09/06/02
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On September 06, 2002 at 17:32:47, Matthew Hull wrote: >On September 06, 2002 at 16:13:40, Robert Hyatt wrote: > >>On September 06, 2002 at 16:04:58, ALI MIRAFZALI wrote: >> >>>From the Threads here I am assuming that professor Hyatt beleives that 100X >>>factor in speed (NPS) would be too much to overcome with software improvement >>>factor.I am proposing the following possible match:Time control 40/2 6 >>>games : GNU chess 5.04 on a pentium 4 at 2.4 Gigahertz vs Chessmaster2 original >>>playstation (33 Mhz).This is actually a 73 factor in terms of processor speed >>>which is not 100 but close.On the original playstation Chessmaster2 gets about >>>1100 Nps. >> >> >>Why gnuchess? I don't know much about it, and it might be perfectly ok. >> >>But you are also misinterpreting what I said. I did say that a factor of >>100x, between programs that are "close" is overwhelming. Obviously a bad >>program at 100X will be better, but it might not be much better. >> >>In any case, give your test a go and see what happens first... > >I'm running a test now with gnuchess (900mhz Duron) versus Crafty18.15 (90mhz >Pentium). Gnuchess runs 16x faster on the Duron than the P90. At 40/30min >minutes and after 36 games, gnuchess is 52% against crafty (not too impressive >for gnuchess). The lower the time control, the better gnuchess does, of course. > I have lots more data at home on this test, as well as an equal hardware test. >I'm trying to get at least 40 games in each category, including 40/120. > >Not sure if the test will prove useful, but I'm thinking that one can do this >experiment with any two engines and derive a function with which to calculate >the speed advantage needed to reach parity/superiority by the weaker engine, >qualitative factors aside. Thanks for your tests. I am interested to know how much games gnuchess lost on time because based on my experience gnuchess lose minority of it's games on time at x minute/y moves. It may be more interesting to use fisher time control because I believe that gnu chess does not lose on time at fisher time control. I still expect gnu chess to lose at slow time control inspite of the hardware advantage even at fisher time control like 150 minute per game+25 second per move but it is only a guess. I suggest that you use 6+1,30+5,150+25 as your 3 categories of time control. Uri
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