Author: Vincent Diepeveen
Date: 10:30:22 04/17/01
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On April 17, 2001 at 09:21:42, José Carlos wrote: >On April 17, 2001 at 03:08:42, Tony Werten wrote: > >>On April 16, 2001 at 18:15:52, Dieter Buerssner wrote: >> >>>In a different discussion, Vincent wrote the following: >>> >>>>It is not difficult to implement the form of parallellism as used by >>>>Rudolf. Invented by a frenchman who couldn't spell a word english and >>>>who wrote an impossible article for JICCA (did anyone proofread it at >>>>the time as i'm pretty sure they didn't get his parallel idea?). >>>> >>>>At the time when i read the article i was pathetically laughing about it >>>>actually as i also didn't get the idea of the frenchman. But it appears >>>>everyone who can make a chessprogram work under win2000 can also get >>>>within an afternoon his program parallel to work. Then some debugging >>>>and a day later it works cool. >>> >>>I'd be very interested in this algorithm, that can be implemented at an >>>afternoon :-) >>> >>>Could you point elaborate on this. >>> >>>BTW. In Paderborn, Roland Pfister also told me, that he knows this from Rudolf >>>Huber, and he even started to explain it to me. Somhow, we (or me) got >>>distracted, and I cannot remember the essential things. >>> >>>What I remember is, that the time consuming work, of making your >>>search/evaluation routines free from all those global variables is not needed. >>> >>>Regards, >>>Dieter >> >>I haven't tried parallelism yet, but my (very) simple approach would be: >> >>Since my program spends most of its time in eval(), split it in evalblack() and >>evalwhite(). No need for many changes. Haven't got a clue what the speedup would >>be, but it's easy to try. >> >>cheers, >> >>Tony > > Are you sure you spend most of your time in eval? My problem is inCheck() >since ever. That's where my prog spends most of the time. > The good thing is that, everytime I want to improve the speed of my program, I >know exactly where to focus on :) > I suggest you to profile your program to know exactly where the time is spend, >although probably you've already done this. > > José C. How can this eat system time anyway?
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