On Fri, 2007-01-26 at 10:22 -0800, terry mcintyre wrote: > > ----- Original Message ---- From: Don Dailey <[EMAIL PROTECTED]> > > >This can be tested directly. In my own experiments 19x19 > > improves very rapidly in UCT with each doubling of the > > number of play-outs. > > May I ask the range of "number of playouts" tested? > > > Have you considered taking up David Doshay's offer and running > some multi-computer simulations? With 72 processors whirling > away for a month or so, one could have a lot of interesting data.
Yes, David agreed to let me use his system several weeks ago but I have procrastinated due to many other projects and my work schedule not to mention the time I have wasted posting on this group. Part of my procrastination is that I'm not sure how to make UCT scale to a large number of CPU's. I am an expert in scaling alpha/beta to a large numbers of processors (I did this with Socrates on 1836 processors a few years ago) but it's different with UCT which is inherently serial. I am also considering doing a public huge UCT scalability study with 19x19 go. My idea is for several programs to set their program up to a "fixed" level (n play-outs) and set up a CGOS server with really long time controls. But I want to just get a normal 19x19 server running first. > Btw, how are your experiments with D coming along? Is it becoming > competitive, performance-wise, with C or C++? D is a lovely language but the current compilers generate code that is too slow for my taste. I think this situation will improve in the future and I will keep my eye on D. There is no reason I am aware of that D cannot run as fast as C. - Don > > > ______________________________________________________________________ > We won't tell. Get more on shows you hate to love > (and love to hate): Yahoo! TV's Guilty Pleasures list. > _______________________________________________ > 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/
