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Re: [Bug-gnubg] Some general rollout questions
From: |
Joern Thyssen |
Subject: |
Re: [Bug-gnubg] Some general rollout questions |
Date: |
Fri, 13 Dec 2002 12:05:15 +0000 |
User-agent: |
Mutt/1.4i |
On Fri, Dec 13, 2002 at 12:03:09PM +0100, Morten Wang wrote
> Hi all,
>
> Just two general questions about rollouts. I did check #2 with the
> various resources on the web but couldn't find the answer.
>
> 1: In a cubeful money game rollout of a position where the cube is
> already turned (so Jacoby is irrelevant), does gnubg factor in
> later cube usage in the total cubeful equity of the position?
> I'd expect it to do so, but then I started wondering.
In the actual rollout the cube is fully live, so even with Jacoby, gnubg
will factor in the cube. However, if you use a truncated rollout, the
value of cube ownership at the truncation point is calculated through
the Janowski formulae like normal cubeful n-ply evalutions.
> 2: What are the differences between the text client and the GTK client
> when it comes to doing rollouts? In the GTK client I can evaluate
> all moves on [0,4]-ply then roll out the best 5 and show the
> results combined. This doesn't seem to be possible in the text
> client, or is it just hidden somewhere?
You can do rollouts with the CLI
hint
rollout =1 =2
but the result is not saved....
I'll see what I can do about it.
> I have a remotely accessible server with two processors running
> idle and I'd like to use it for larger rollouts, but the text
> client seems difficult to use for that kind of thing. Any advice
> would of course be welcome.
Jørn