Author: Tony Werten
Date: 12:33:54 05/02/01
Go up one level in this thread
On May 02, 2001 at 11:46:52, Paul wrote: >On May 02, 2001 at 11:42:22, Gian-Carlo Pascutto wrote: > >>On May 02, 2001 at 11:37:02, Paul wrote: >> >>>I also use nodecounts after reading about it on CCC. But what type do you use >>>for the counter, an unsigned int? That will overflow after a search of a couple >>>of hours on these 1M node/s machines we have nowadays, wouldn't it? Or am I >>>missing something (like a shift right)? >> >>Shifting right sounds like a good idea, but it won't help if your >>nodecounter itself also overflows of course. >> >>I had a similar problem when moving from a Cyrix120 to an Athlon 1000... >>mynodecounts started getting higher than my 'infinite' value. >> >>-- >>GCP > >Right ... not surprisingly, I've had exactly the same problem! :) So what did >you do to solve this? Use a double or a 64 bit int? When you finish an iteration, first swap the bestmove to the front, then sort the rest from the second position. Not a big change the second best move got an overflow. Tony > >Paul
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