I haven't been able to reproduce it in isolation yet (including by replaying from an SGF), but when I run several hundred games, this consistently happens in several of them.
On Thu, Jun 18, 2015 at 3:57 PM, René van de Veerdonk < rene.vandeveerd...@gmail.com> wrote: > Can you reproduce it issuing gtp commands, i.e., loading in the failing > position from sgf-file and requesting gnugo to generate a move? > > Example: > loadsgf games/strategy25.sgf 61 > gg_genmove black > > > On Thu, Jun 18, 2015 at 3:56 PM, Petr Baudis <pa...@ucw.cz> wrote: > >> Hi! >> >> I've observed the same thing when playtesting Pachi against GNUGo, >> since very long ago. If you look a few moves back, you will see GNUGo >> already taking progressively longer time as the ladder is played out. >> IMHO there's some crazy exptime backtrack that gets out of hand at some >> point. It'd be interesting to see if giving GNUGo some time limit >> helps. >> >> On Thu, Jun 18, 2015 at 03:45:18PM -0700, Peter Drake wrote: >> > Nope, we're still getting these crashes with more memory in the system. >> It >> > still looks like it's always GNU Go that's crashing, and it always >> happens >> > some way into a ladder that Orego shouldn't really be playing out. >> > >> > On Thu, Jun 18, 2015 at 3:24 PM, Peter Drake <dr...@lclark.edu> wrote: >> > >> > > I have no idea what GNU Go does for memory management, but that does >> offer >> > > up a possibility: maybe the machine in question (a Google Compute >> Engine >> > > instance) is running out of memory. I've been using the highcpu >> machine >> > > types; I'll try a standard one (which has more memory) and see if the >> same >> > > thing happens. >> > > >> > > >> > > On Thu, Jun 18, 2015 at 1:41 PM, uurtamo . <uurt...@gmail.com> wrote: >> > > >> > >> What does it do for memory management? Is it ungracefully failing >> while >> > >> evaluating the ladder itself due to ram issues? >> > >> >> > >> steve >> > >> On Jun 18, 2015 12:15 PM, "Peter Drake" <dr...@lclark.edu> wrote: >> > >> >> > >>> This list may not be able to help, but I'm running out of clues on >> this >> > >>> one. >> > >>> >> > >>> I'm trying to run an experiment playing Orego against GNU Go in many >> > >>> games. Some of the games don't end properly. As far as I can tell, >> here's >> > >>> what happens: >> > >>> >> > >>> 1) Orego plays out a losing ladder. (That needs to be fixed, but >> that's >> > >>> another problem.) >> > >>> 2) At some point in the ladder, GNU Go quietly dies without >> responding >> > >>> to the move request. >> > >>> >> > >>> Has anyone else encountered this? >> > >>> >> > >>> -- >> > >>> Peter Drake >> > >>> https://sites.google.com/a/lclark.edu/drake/ >> > >>> >> > >>> _______________________________________________ >> > >>> Computer-go mailing list >> > >>> Computer-go@computer-go.org >> > >>> http://computer-go.org/mailman/listinfo/computer-go >> > >>> >> > >> >> > >> _______________________________________________ >> > >> Computer-go mailing list >> > >> Computer-go@computer-go.org >> > >> http://computer-go.org/mailman/listinfo/computer-go >> > >> >> > > >> > > >> > > >> > > -- >> > > Peter Drake >> > > https://sites.google.com/a/lclark.edu/drake/ >> > > >> > >> > >> > >> > -- >> > Peter Drake >> > https://sites.google.com/a/lclark.edu/drake/ >> >> > _______________________________________________ >> > Computer-go mailing list >> > Computer-go@computer-go.org >> > http://computer-go.org/mailman/listinfo/computer-go >> >> >> -- >> Petr Baudis >> If you have good ideas, good data and fast computers, >> you can do almost anything. -- Geoffrey Hinton >> _______________________________________________ >> Computer-go mailing list >> Computer-go@computer-go.org >> http://computer-go.org/mailman/listinfo/computer-go >> > > > _______________________________________________ > Computer-go mailing list > Computer-go@computer-go.org > http://computer-go.org/mailman/listinfo/computer-go > -- Peter Drake https://sites.google.com/a/lclark.edu/drake/
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