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RE: [gnugo-devel] strength against Many Faces

From: David Fotland
Subject: RE: [gnugo-devel] strength against Many Faces
Date: Sat, 23 Apr 2005 14:53:13 -0700

flearn9 is for 9x9 games.  flearn19 is for 19 line games.  It keeps a
separate database for each board size.

Are you sure you are checking the modified date and not the creation date?

If you have several PCs running mfgo, then the learning is not being shared
among them, so you might see
repeated games played on different PCs.


> -----Original Message-----
> From: address@hidden 
> [mailto:address@hidden 
> On Behalf Of David G Doshay
> Sent: Friday, April 22, 2005 12:43 PM
> To: GNU Go development
> Subject: Re: [gnugo-devel] strength against Many Faces
> On 19, Apr 2005, at 10:37 AM, David Fotland wrote:
> > Are the games played in a way that allows Many Faces to learn?  It
> > keeps the
> > learned positions in a file in the install folder called 
> flearn19.dat.
> We see flearn9.dat.
> >  This
> > file is read once when MFGO starts up, and is written after each
> > completed
> > games with the new learned positions.
> >
> > MFGO will prefer to repeat openings where it wins games, 
> and will try
> > to
> > avoid openings that lead to losses.
> I am a bit confused.
> We have a number of PCs running MFoG playing against parts of our 
> clusters. On each machine we have checked, the file has the 
> date of the 
> original installation. However, the contents of the file is different 
> on each machine, and in many places.
> When the file gets updated (I understand at the end of each game), is 
> there a way that we might inadvertently be avoiding the 
> updates, and if 
> not, why isn't the date on the file updated to indicate the 
> last write?
> Just to be complete, we run sets of games, and terminate MFoG between 
> changes in SlugGo's search parameters or if there is a crash, so I 
> expect that the file should be updated regularly ... many times since 
> September when we started playing SlugGo against MFoG.
> As an experiment we even removed the file from one machine. Runs are 
> accumulating but we have nothing significant yet.
> Thanks for your time,
> David
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