Author: Alessandro Scotti
Date: 06:19:53 10/02/04
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On October 01, 2004 at 22:17:33, Uri Blass wrote: >On October 01, 2004 at 18:33:00, Alessandro Scotti wrote: > >>On October 01, 2004 at 13:43:17, Uri Blass wrote: >> >>>[D]5b1k/4p1p1/4P1P1/8/8/1p2p1p1/1P2P1P1/K4B2 w - - 0 1 >>> >>>How much time does your program need to get perft 50 and perft 70 >>> >>>latest Movei after fixing perft to be able to calculate more than 20 plies >>>gives >>>perft 50=531,441 >>>perft 70=129,140,163 >> >>On a 700 MHz Athlon: >>perft 50 -> 2.9 sec >>perft 60 -> 48 sec >>perft 70 -> n/a (don't want to wait too much!) > >comparing with result of movei on A1000 >perft 50 2.023 seconds >perft 60 32.587 seconds >perft 70 500.37 seconds > >Note that this is only in case of having >#define MODE MODE_PERFT > >changing the single line to >#define MODE MODE_GAME means that movei is almost twice slower because it >calculates a lot of irrelevant information like zobrist keys or evaluation. I don't have a special perft() mode, so this is exactly what I use for playing. However, for each move I only compute: the new position hash code, the material score and whether the side to play is in check.
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