Author: Dann Corbit
Date: 16:48:09 02/11/00
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On February 11, 2000 at 19:43:40, tony watson wrote: >Having just overclocked my P166MMX to 200mhz, :>) >I ran a couple of benchmarks using Crafty's built-in bench command, >to confirm an increase in speed of around 18%. :>)) >what I didnt expect was the large speed difference between >the 2 versions (17.5 and 17.8), so I checked another 3 versions >and got the following results:- > > Version Total Nodes Nodes per Second Time (seconds) > > 16.6 74,921,651 63,118 1187 > 17.5 87,931,266 79,720 1103 > 17.6 70,362,201 60,138 1170 > 17.7 72,591,308 61,413 1182 > 17.8 72,591,308 61,206 1186 > > interesting, it appears that the last 3 versions share the same results, >but 17.5 is 30% quicker, cancelling out the larger number of total >nodes searched and returning with the best time. > >Im sure this will have been discussed before on the forum, but i'm kinda >new here and I am just interested if the latest version is the finest, or are >there some real gems hiding in proff. Hyatt's ftp. > >All benches were run using identical settings and 16Mb 0f HASH :>) You can't tell how strong a program is by counting how many nodes it examines. Turn off NULL move and it will search more nodes with less effect, for instance. Remove all positional checking and it will search even more nodes. By a judicious removal of tests, you could probably double the node counts and halve the playing strength. The proof of the pudding is in the eating. Play a 500 game match between two versions and tell us how it turns out. Use separate machines, and turn pondering on.
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