The strong pachi is really strong! What hardware is it running on? Can you say how it differs from the vanilla pachi?
David From: [email protected] [mailto:[email protected]] On Behalf Of Jean-loup Gailly Sent: Wednesday, February 17, 2010 9:50 AM To: computer-go Subject: Re: [computer-go] Strong programs on cgos 19x19? > or the strong version of pachi. Done. Jean-loup 2010/2/16 David Fotland <[email protected]> My old MPI code had a scaling bug. Performance scaling (playouts per second) was linear, but the strength did not scale well, and 64 cores was weaker than 32 cores. I have a 16 core cluster of my own now (four 2.3 GHz Q8200 quad core), and I discovered that the MPI code hangs when using MPICH2 rather than the Microsoft MPI library. So last week I rewrote it with a different algorithm, and it seems to scale much better. It's on CGOS now, for at least a few days. It would be great if some other strong programs could join, zen, or fuego-8c, or aya-4c, or the strong version or pachi. Thanks, David _______________________________________________ computer-go mailing list [email protected] http://www.computer-go.org/mailman/listinfo/computer-go/
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