Author: Michel Langeveld
Date: 22:21:08 01/15/04
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On January 15, 2004 at 17:44:25, Dann Corbit wrote: >On January 15, 2004 at 17:39:13, Michel Langeveld wrote: > >>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. > >Don't forget to use the king positions for check test. That's another big >speedup. Yes I have this, see: http://www.talkchess.com/forums/1/message.html?342698
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