[gnugo-devel] Gnugo timing bug ?

[Mike Cumpstey]

While trying to figure out why gnugo (version 3.0.0) sometimes overruns
the time control, I spotted a small bug in the Autolevel system. In
function estimate_time_by_move() the line

    res += coef[i] * (clk.date[move-9+i] - clk.date[move-10+i]);

needs to be changed to

    res += coef[i] * (clk.date[move-9+i*2] - clk.date[move-10+i*2]);

in order to calculated an average time per move of it own moves rather
than a mixture of own and opponents.

Also, I think the current Autolevel system is rather inflexible so I am
currently looking at possible ways to improve it and make it more reliable
at sticking to the time limits.

regards,

-- Mike

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Mike Cumpstey, Room IT208, Department of Computer Science,
University of Manchester, Oxford Road, Manchester, M13 9PL, U.K.
Tel: (+44) 161 275 0644                 FAX: (+44) 161 275 6236
EMAIL: address@hidden   Research Group: Amulet
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