Author: Robert Hyatt
Date: 21:28:47 05/29/00
Go up one level in this thread
On May 28, 2000 at 16:37:32, Gian-Carlo Pascutto wrote: >On May 28, 2000 at 10:02:05, Georg v. Zimmermann wrote: > >>From my tests it shows that it sticks with the hash-move about 50% of the time. >>Should this number be higher ? > >Hmm...if this number is also effectively your 'move ordering percentage', >which I assume it is, it is quite low. I'd expect it to be at least about 75%. > >> The classic definition of a "strongly-ordered tree" is this: If, for every node where you fail high, you fail high on the first move at least 90% of the time, then your move ordering is good." If you are much below 90% and already have a serious problem that is not hard to fix. The traditional ordering ideas holds Crafty at 92% and better for most of the game. >>I was very dissapointed when I didn't notice any speedup after my changes. What >>speedup should I expect ? Something like 0.5-1% or more like 1ply ? >> >>Am I doing something wrong or does this simply not matter as much as I thought ? > >It's strange. I did the same thing in the past and arrived at the same result. >My eval is pretty small, my movegen is very expensive yet my speed was hardly >any better. I didn't get it. I still don't. > >I still don't get how some programs run 10x as fast as mine either.(Little >Goliath). What the hell do they do to make those things so darned fast? > >-- >GCP Easy: Never do now, that which you can defer doing until later. Because if you defer doing it, a cutoff will mean you don't do it at all.
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