Author: Angrim
Date: 10:52:54 04/05/03
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On April 04, 2003 at 18:35:53, Russell Reagan wrote: >On April 04, 2003 at 17:10:15, Russell Reagan wrote: > >>Use (say) 32-bits >>for the "board arrangement" hash key, and 32-bits for a "move list" hash key, >>packed into one 64-bit hash key. > >I thought this combo approach would be a little slower than the traditional >single key approach, since you are generating a new key from scratch each time >you call your move generator, but I implemented the combo method using 32-bits >per key, and it ended up running 9% faster than the traditional 64-bit key, so >speed shouldn't be an issue, at least on a 32-bit machine. > >I still don't have any idea if it will be any more effective. I only hashed the >from and to squares for the move list key. I'm not sure if that is sufficient or >not. Hmm, do you mean 9% faster NPS? if so your move ordering has likely been hurt by the new hash method, since no way the hashing was taking 9% of the time before. Angrim
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