On Mar 13, 2006, at 12:22 PM, Gunnar Farnebäck wrote:

Dan wrote:
Perhaps the semeai nodes should be increased but 2000 is
too much. The current default is 500.


<snippage>

With 1000 nodes I measure a regression slowdown by 9% and with 1500 a
slowdown by 17%.

/Gunnar

Regressions are not run often ... it would be more pertinent to ask a) whether gnugo picks better moves with a higher node limit, and b) whether the cost time-wise is acceptable for ordinary usage.

If the moves are not better, that would be a topic for investigation; it suggests a brittle algorithm which has been tweaked to work at certain settings, but not under deeper study.



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