Author: Sandro Necchi
Date: 15:12:29 02/12/06
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On February 12, 2006 at 15:23:50, Alessandro Scotti wrote: >Hi, >is there a table somewhere that shows how much Elo can an engine get from being >10%, 20%, ... 100+% faster? >Usually speed improvements are considered marginal to "algorithmic" >improvements, but on CEGT the difference between Deep Shredder 9.12 x64 2CPU and >Shredder 9 is 65 elo, and between Rybka 64-bit and Rybka 32-bit an amazing 62 >elo... in the latter case not bad at all for just recompiling the program! >I'd rather have my program slow and correct than fast and buggy, but I'm still >wondering if it's still worth to invest some effort in optimizing things a >little. Shredder 9.12 is stronger than 9.0 It is probably 30 points stronger as a little stronger than Shredder CE 9S which is about 25 points stronger, so the figure you got is not 65 Elo for doubling, but 35 which is close to the std. doubling lately which is about 40 points (not the same for all programs, but close). Previously it was 70 points, but the deeper the program search also thanks to faster processors the lowest they get increasing the speed. This means that the tendency is to decrease further. Most important is to increase the program strenght by adding chess knowledge and refining the program evaluation as well as the search. Sandro
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