Author: Tord Romstad
Date: 10:33:57 12/01/03
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On December 01, 2003 at 09:38:18, Anthony Cozzie wrote: >Well Zappa is currently a bitboard based engine, and I was considering >switching. Zappa's nps (in a lazy-eval position like WAC141) went from 550 -> >350 using these tables. Gothmog gets 190 knps in WAC141 on a PIV 2.4GHz. I cannot use lazy eval, though. Unfortunately it is hard to estimate how much of the processor time is spent on attack table generation, because the attack table generation is very intertwined with the rest of my evaluation code. >The big problem I had was that the bitboard code will be considerably faster once >I get an Opteron, while the attack table code will stay slow. My code will always stay slow, I'm afraid. And bitboards are simply not an option for me -- being a non-programmer with limited time on my hands I have simply no hope to ever acquire the skills needed to make them work. Tord
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