Author: Vincent Diepeveen
Date: 16:38:11 09/23/01
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On September 23, 2001 at 18:47:27, Dave Gomboc wrote: >On September 23, 2001 at 18:32:50, Vincent Diepeveen wrote: > >>The average test done here at CCC is 10 to 20 seconds a move. >> >>Even the new try to make a WACII the dudes test at most at 1 minute >>a move. >> >>So you're kind of wrong here. >> >>Most tests in ICCA and advances in ICCA are based upon anything under or >>equal to 8 ply. >> >>I can only remember a single article 'crafty goes deep' where some >>deeper searches were done. > >That may the speed they are measuring at, but the assumption is that the speedup >rate will remain roughly constant as the depth increases further. well that assumption is wrong. Read what bob writes about Cray Blitz in journal in ICCA. Also note that speedup of cray blitz is reported to be 3.9 there at 4 processors, doing that by moving 64KB blocks or whatever and nearly a fullwidth search with singular extensions! At 2 processors cray blitz gets *easily* 1.9 speedup. With singular extensions i do not even get *close* to that speedup. I get 1.8 then. Why wouldn't i manage at just 2 processors to get 2.0 then at 2 processors if i turn off singular extensions at 3 minutes a move? You guys are not listening to arguments like: "game space". What the hell do you know from computerchess anyway? I mean you *never* of course measured anything. So arguments i write down here and reasons simply do not get listened to! >Dave
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