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Re: [Bug-gnubg] Gnubg's Cache and Plies > 3 - problem?

From: Jonathan Kinsey
Subject: Re: [Bug-gnubg] Gnubg's Cache and Plies > 3 - problem?
Date: Wed, 2 Sep 2009 09:36:46 +0000

Michael Petch wrote:
> On 01/09/09 10:26 PM, "Michael Petch" wrote:
> On 01/09/09 5:22 PM, "Michael Petch" wrote:
> I haven’t provided the output, but I ran 0,1,2,3 plies (Same
> filter and other settings). In those instances Cache Evals = No
> Cached evals, which leads me to believe we still have an issue
> with plies>3 with caching that hasn’t been discovered. I will
> look at the code more tonight and if I see anything I’ll let
> people know. My guess is we have missed something small
> somewhere (I hope).
> It appears we may be dealing with an optimization issue. Stay tuned.
> Its not optimizations. I can’t reproduce the problems now. I know there
> is something that will cause it, I just don’t know what it was (So I am
> positive there is a bug, I just can’t reproduce it). I am betting it has
> to do with Pruning analysis options.
> On a side note can someone briefly explain “fTop” variable. There is an
> inline comment in eval.c from a few years ago that fTop should be in the
> cache but there were no available bits.

Maybe it's a flag to show that it's the initial position being evaluated? I'm
guessing because I haven't looked at the code in detail.


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