Author: Reinhard Scharnagl
Date: 06:08:36 10/02/04
Go up one level in this thread
On October 02, 2004 at 08:51:34, Roman Hartmann 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 AMD Athlon 1.2Ghz > >roce: setboard 5b1k/4p1p1/4P1P1/8/8/1p2p1p1/1P2P1P1/K4B2 w - - 0 1 >roce: perft 50 >Perft 50: 531441 (9.97s) >roce: perft 60 >Perft 60: 9565938 (163.47s) >roce: perft 70 >Perft 70: 129140163 (2549.90s) >Perft 80 gave me a negative number ... Well, 0x8A8D67B6 exeeds the range of a signed 4 byte integer. Up to level 80 it might help to use unsigned counters, obove from that level you will need 8 byte counters like Smirf is using here. Reinhard.
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