Author: Mike Byrne
Date: 17:47:40 02/05/04
Go up one level in this thread
On February 05, 2004 at 07:12:01, Uri Blass wrote: >On February 05, 2004 at 06:31:42, Mike Byrne wrote: > >>On February 05, 2004 at 04:04:14, Uri Blass wrote: >> >>>On February 04, 2004 at 21:16:26, Mike Byrne wrote: >>> >>>>On February 04, 2004 at 20:54:58, Paul Doire wrote: >>>> >>>>>Ok >>>>> >>>>>I received Mike's 1910 SE Crafty Edition, and having had good, >>>>>albeit short results with Ruffian 2 versus 1909 Crafty (Peter Skinner) >>>>>6 games ...No wins by Ruffian 2...yeah, yeah too few games..yada, yada. >>>>>Nevertheless, I was encouraged to learn more about the new CCT-6 >>>>>Crafty...1910. So off I went into another Blitz match..damm my need for >>>>>immediate gratification...Isn't that a sign of immaturity :-) Anyway >>>>>here are the results: >>>>> >>>>>Chessbase Gui >>>>>542 (cough) Mhz >>>>>Win 98 SE >>>>>16 MBRAM >>>>>Ponder Off...Sorry crafty >>>>>5 move.ctg >>>>>30 games >>>>> >>>>>Crafty 1910 vs Ruffian 2 5.ctg :5' Blitz >>>>> >>>>> 123456789012345678901234567890 >>>>>1 Ruffian 2.0.0 1100011111110½½100½½1001101111 19.0/30 >>>>>2 Crafty 19.10 SE 0011100000001½½011½½0110010000 11.0/30 >>>> >>>>30 games are just a short blip on the radar -- I ran 150 games against Ruffian >>>>1.05 -- Ruffian won by a few games a +6 overall. >>>> >>>>Different books, no pondering etc etc impact Crafty. Skinner optimizes his >>>>Crafty for his machine -- I optimized Crafty for my macnhine -- so depending >>>>where your processor falls - his might be better for your machine, mine might be >>>>better for some else's machine. >>> >>>How much speed improvement do you get from optimizing Crafty for specific >>>machine. >>> >>>If it is something in the order of being 10% faster then the difference in elo >>>should be in the order of 10 elo and I guess that you may need thousands of >>>games to get significant difference when you test against other programs. >>> >>>Uri >> >>In theory , it is optimized for all machines, but the optimization is being >>performed on one machine (mine) -- thus my machine may beneift more than any >>other machine. > >The question is how much more. >Even if we assume that your machine benefits 10% more than other machines then >it is still a very small difference and I do not believe that it is the main >reason to explain significant difference in the results. > >It may explain only difference of 2.5 points in 100 games. > >Uri With everything else being equal, perhaps yes. (But remember once engine might be hurt by a certain type of processor and another engine might gain form the same processor) But here there are many variables - different machines , different books, pondering on/off etc. It all falls back to -- "your mileage may vary".
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