Author: Bo Persson
Date: 14:31:43 02/15/04
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On February 15, 2004 at 16:01:27, Sune Fischer wrote: >On February 15, 2004 at 15:46:39, Russell Reagan wrote: > >>On February 15, 2004 at 15:11:56, Andrew Wagner wrote: >> >>>So I'm starting to design a chess engine, and I have a nifty little class for >>>doing benchmark tests, and I'm wondering if anyone would like to hazard a guess >>>as to what is a good (or bad) length of time for an engine to generate all >>>pseudo-legal (even if it results in check) moves in a position. Any takers? >> >>On my computer (Athlon XP 2400+, 2GHz), here are a few results. >> >>Crafty: 21,231,421 moves/second >>Yace: 45,347,583 moves/second > >Are you sure that this is really the make/umake speed in yace, that it isn't >using some perft tricks like Movei? You can do other "tricks" to speedd up the move generation tests, like updating attack tables in make/unmake move. I don't know about Yace, but Crafty is trading a "slow" move generator for a faster make/unmake by generating attack tables on-the-fly. This makes this particular test run slower, but improves the overall speed of the program. So much for benchmarks. :-) Bo Persson > >-S.
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