Author: Michel Langeveld
Date: 14:39:13 01/15/04
Go up one level in this thread
On January 15, 2004 at 13:13:18, Dann Corbit wrote: >On January 14, 2004 at 23:22:46, Russell Reagan wrote: > >>On January 14, 2004 at 17:48:06, Dann Corbit wrote: >> >>>An aside: >>>You can get a stupendous speed increase with TSCP by the addition of piece >>>lists. >> >>I added a few bitboards to TSCP to act as piece lists once, and the speedup was >>there, but not stupendous. Something like 10-20% IIRC. Of course, that's not a >>"real" piece list. You could use a real piece list to speed up the attack >>detection, which is probably one of the most time consuming functions in TSCP. > >I bet you still iterated over the board. The number 64 should almost never >appear in the program. > >I got a 4-fold speedup, at least (hashing, piece lists, a few other trinkets). I added half of the hashing today. I have to to use the hashmove to sort it in the movelist. The hashspeed up is already 50% now. Piecelists is on my todo list. Won't rest until they are in.
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