David Fotland: <[EMAIL PROTECTED]>: >The scalability study showed that mogo gains almost 100 rating points per >doubling of performance. > >But on CGOS, there is mogo 1 CPU and mogo 4 CPU. I would expect the 4 CPU >mogo to be 150 rating points or more higher than 1 CPU. But it is actually >only 40 points higher.
I'm also wondering this for months. One reason of this discount is that the MoGo bros running on cgos are the _big versions. By my obserbation (they are running on my pcs and both are Q6600/3GHz with different mother boards), mogo_big_4core's perallelism is around 300% (by top command), perhaps due to its heavier uct part (just my guess). >I guess this is because in the rating study mogo was mostly playing other >mogo versions. A the faster mogo can see everything the weaker mogo sees, >and more. I'm not sure. Mogo_big_4core's winning rate against mogo_big_1core is about 60% (1641 / 2743) which corresponds only +70 ELO and current rating difference on cgos is about 40, as you wrote. According to the scaling rule of mc playouts, it should be 160 ELO (log2(3) * 100 = 158.5). >But against other programs on CGOS, there will be weaknesses common to both >fast and slow mogo, that other programs might exploit. > >Is the true scalability of mogo (against a variety of programs, or against >people) less than the rating study indicates? I believe their current ratings on cgos indicate so. Hideki >David > > >_______________________________________________ >computer-go mailing list >computer-go@computer-go.org >http://www.computer-go.org/mailman/listinfo/computer-go/ -- [EMAIL PROTECTED] (Kato) _______________________________________________ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
