Author: Keith Evans
Date: 16:16:12 03/30/02
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On March 30, 2002 at 15:18:13, Slater Wold wrote: >On March 30, 2002 at 08:46:40, Sune Fischer wrote: > >>On March 30, 2002 at 03:07:29, Slater Wold wrote: >> >>That sounds real exciting :) > >I hope so. ;) > >>But do you think you can reach 10M nps by just hardware coding the movegen? >>I think the eval() is what's holding Crafty from reaching those numbers. >>I haven't profiled Crafty, but I wouldn't be surprised if the movegen is perhaps >>only 10%. > >Every engine I have profiled move gen and move ordering account for 1/2 the >program. If we take away that half, we would double the speed of crafty. So >1.8M nps is now 3.6M nps. 10M was a guess, and a sloppy one at that. :) > One question I have, that Hyatt could probably answer off the top of his head, is what effect your move ordering will have on the effective branching factor of Crafty. I assume that you'll be using a MVV/LVA approach? Which is different that what Crafty does. This is something that needs to be considered. Maybe I'm misunderstanding what you are actually going to do? Regards, Keith
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