Author: Len Eisner
Date: 09:58:24 01/01/00
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On January 01, 2000 at 10:20:48, James T. Walker wrote: >Hello Uri, >You may be right. I assume you think that a doubling of speed is worth LESS than >60 points. You must also consider that if you are right then a processor >running at 1/2 speed does not lose 60 points either. Are you so sure about >that?? Doubling speed gives the program 2 times as much information and vs >computers it is easy to prove that the gain is very close to the 60 points most >people accept. *snip* Larry Kaufman wrote an interesting article several years ago comparing the effects of increased speed vs. increased time. He concluded an increase in program speed was worth more than an increase in thinking time assuming the human’s time does not vary. This is difficult to explain so let me give an example. First Game Fritz 6 PII 400 Human: 60 seconds a move Fritz: 30 seconds a move Second Game Fritz 6 PII 200 Human: 60 seconds per move Fritz: 60 seconds per move You would think Fritz would play equally well in both games but that’s incorrect. In game one, Fritz would be stronger because of the effects of the permanent brain. If you assume Fritz guesses you move 1/3 of the time, then the value of the permanent brain is (1/3 X 60 seconds) = 20 seconds per move over the course of the entire game. So for game one the total time per move for Fritz including the permanent brain is 20 + 30 = 50 seconds. In game two the total time would be 20 + 60 = 80 seconds per move. So Fritz is stroger in game one because 50 seconds per move on a PII 400 is better than 80 seconds per move on a PII 200. Len
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