Author: Sune Fischer
Date: 05:49:01 05/05/04
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On May 05, 2004 at 08:38:50, Vincent Diepeveen wrote: >On May 05, 2004 at 08:29:47, Sune Fischer wrote: > >>On May 05, 2004 at 07:26:40, Vincent Diepeveen wrote: >> >>>On May 05, 2004 at 06:52:06, Gerd Isenberg wrote: >>> >>>With bitboards perhaps it's slower. >>> >>>Also in endgames with non bitboards it's faster. >> >>It's not a bitboard issue, it's because in the endgame the attack rays are >>generally longer so more bits need updating. >> >>-S. > >Knowing Gerd just uses bitboards to get to his goals i guess he was stuck there. What kind of speed difference do you usually see between midgames and endgames? I usually get something like 6-800 knps midgame and 11-1800 knps in endgames (2GHz). Varies a lot depending on what type of endgame of course. I never saw that kind of speed up when I used attack tables, maybe just barely hitting 10-1100 knps sometimes in the endgame while usually doing 6-800 knps midgame. So throwing them out have given me a big boost in the endgame and no noticable penalty in midgame. -S.
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