Author: David Rasmussen
Date: 17:57:42 01/29/01
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On January 29, 2001 at 20:21:32, Dan Newman wrote: > >I'm currently getting about 1040 knps on a P3 running at 980 MHz with Shrike >which uses non-rotated bitboards. I've been stuffing a lot of eval in too. >A lot for me anyway. If I turn off lazy eval it drops to about 890 knps. >(All this measured on WAC.) > You really can't use nps for anything here because your definition of nps might be different from mine etc. Also, you might have bugs in your nps counting. I had one very common bug once, where I counted nodes at the beginning of my Search() function, and then, if depth was <= 0, I called Quiescence(), where nodes was counted too in the beginning, so the depth=0 nodes were counted twice. And they are really a large part of the tree, so I got huge nps, until I discovered the bug. >I Used to use 0x88 (and have tried a lot of other things too) but am finding >bitboards to be somewhat faster for some reason... > >-Dan. Maybe your 0x88 implementation was slow? I don't know. I know that Crafty doesn't run 1000 knps at 980 MHz
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