[Computer-go] Computer Analysis of Master Games ?!

David Fotland fotland at smart-games.com
Wed Aug 11 09:22:09 PDT 2010


Yes, that's why the option is there.  By default, MF uses all cores.  If
someone wants long think times while they are using the computer for
something else they can reduce the maximum threads allowed.  T covers all
uses of the engine, including the win rate graph.

David

> -----Original Message-----
> From: computer-go-bounces at dvandva.org [mailto:computer-go-
> bounces at dvandva.org] On Behalf Of unic (Ola Mikael Hansson)
> Sent: Wednesday, August 11, 2010 4:21 AM
> To: computer-go at dvandva.org
> Subject: Re: [Computer-go] Computer Analysis of Master Games ?!
> 
> There's an option (Computer menu -> Configure Monte Carlo engine) to
> set the max number of cores Many Faces uses.
> 
> From a quick trial, that seemed to work for the win graph as well -
> I've got it set to max 3 cores (out of 4), and never saw it using more
> than 70% when doing the win graph (for some randomly picked 19x19
> game).  (Of course, David could confirm if this is indeed the case.)
> 
> /Ola Mikael Hansson
> 
> On Wed, Aug 11, 2010 at 11:49 AM, "Ingo Althöfer" <3-Hirn-Verlag at gmx.de>
> wrote:
> >
> >
> >> Many Faces does 1000 playouts per core per position for these graphs.
> >> So the winning probability confidence interval is a few percent
> >> (depending on the number of cores Ingo used).
> >
> > I had (and still have) two cores.
> > Now I understand why the computer became slow for other tasks during
> > such win rate computations...
> >
> > PErhaps it would be an idea to use 1 core for single-core machines
> > and (k-1) cores for k-core machines.
> >
> > Ingo.
> >
> >
> >
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