We had a bit of discussion w/ the Mogo team after the match. ( I am writing this from the US Go Congress in Portlland, OR ), and Olivier said that Mogo no longer uses a book; it was found to be ineffective in their research. I am wondering, of course, if a book would be more effective now that Mogo has such impressive power - but unfortunately, the supercomputer was only lent for this one match. They can't easily test the hypothesis that a strong program on a massive cluster could make effective use of a good opening book. Mogo no longer uses UCT.
Terry McIntyre <[EMAIL PROTECTED]> ----- Original Message ---- From: Darren Cook <[EMAIL PROTECTED]> To: computer-go <computer-go@computer-go.org> Sent: Thursday, August 7, 2008 9:24:00 PM Subject: Re: [computer-go] mogo beats pro! Great news. Well done to the Mogo team. John, if I can just find 3000 CPUs lying around I might actually win our bet ;-). > I do have to ask -- if 1.7 million playouts per second are required > and an hour of playing time are required to reach this level, ... Can Olivier give us more details. A few questions that come to mind: how many playouts per *move* was it using in each of the opening, middle game and endgame? Was it using a fuseki book, and how many moves did the game stay in that book? And once it was out of the book was it all UCT (*) search, or were there any joseki libraries, etc.? I'd also be interested to hear how inefficient the cluster was (e.g. 1000 CPUs won't be doing 1000 times the number of playouts, there must be some overhead). Darren *: Sorry, I've forgotten the new term we are supposed to use. -- Darren Cook, Software Researcher/Developer http://dcook.org/mlsn/ (English-Japanese-German-Chinese-Arabic open source dictionary/semantic network) http://dcook.org/work/ (About me and my work) http://darrendev.blogspot.com/ (blog on php, flash, i18n, linux, ...) _______________________________________________ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/ _______________________________________________ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
