Author: Joachim Rang
Date: 15:05:55 11/21/03
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On November 21, 2003 at 16:47:52, Peter Berger wrote: >Following recent heated discussions I'd love to do a little testmatch. There are >different versions of the challenge online - I chose one that I can kind of >simulate myself with slower hardware. > >Junior 8.0.0.2 will play on a P233MMX, 32 MB RAM. >Crafty 19.4 will play on a PIV2.0GHz notebook, 1GHz RAM. > >Time control will be game in 2 hours with 10 seconds increment/move. The match >will be done like older FIDE world championship matches - the first one to win 6 >games wins the match, draws won't count. > >Junior uses 16MB Hash, 3+4 men tablebases, 1MB cache, junior8.ctg. >Crafty uses 384MB Hash, 64MB hashp, 3+4 men tablebases, 32MB cache, own book, >aware of playing a computer. > >Compairing setups with Crafty bench (hash 12M, hashp 3M, cache 1M on the slower >one) suggests a speed difference factor of about 10.5 in raw nodes per seconds >and 11.0 in "SMP time to-ply-measurement" between the two computers. >As the Junior Mark doesn't work on the slower one and Junior chooses to search >different depths on both in the starting position, I can't really give a number. >The difference seems to be slightly lower for Junior though, sth like 9.0 maybe. > >Saying that the faster computer is about 10 times faster shouldn't be too wrong. > >That's also clearly an upper-bound for faster hardware Crafty could reasonably >come up to compete with against a single-CPU opponent in a current competition >on fast computers IMHO - the speedup demands 16 CPUs I guess, and I don't know >if Crafty can really scale that well. > >With this setup Crafty should be the clear favourite I suppose. > >Crafty won the toss and will have the white pieces in the first game. > >Peter nice test indeed. I think crafty will win. regards Joachim
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