Author: Amir Ban
Date: 12:59:10 12/21/99
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On December 21, 1999 at 13:12:28, Albert Silver wrote: >On December 21, 1999 at 12:03:05, Amir Ban wrote: > >>On December 21, 1999 at 09:54:39, blass uri wrote: >> >>>On December 21, 1999 at 06:58:26, Amir Ban wrote: >>> >>>>I believe there are engines that take 90% for eval, but I'm pretty sure that no >>>>first-rank engine does. This means that you have 10% left for all the rest, and >>>>you have at least a 5-to-1 handicap in search speed against other engines. >>>>There's no way to successfully compete with this kind of handicap. >>> >>>I guess that hiarcs7.32 use something close to 90% for eval. >>>I think that it succesfully compete with this kind of handicap. >>> >> >>No way. > >No way it is using close to 90% for the eval, or no way it is successfully >competing with this kind of handicap? I presume you meant the first, since >Hiarcs's successes speak for themselves. How much time do you think it spends on >the eval? > Not very much. Hiarcs is a successful program, so I think its author discovered that it's possible to do high quality evaluation without spending tons of CPU on it. I think every top engine has found elaborate and ingenious schemes to do that. To say that good evaluation is one that takes 90% processor time is not to understand what computer chess programming is all about. Hiarcs appears to be an engine with special search techniques, and I guess that's were it spends much time. Amir
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