Author: Ren Wu
Date: 13:15:35 09/26/01
Go up one level in this thread
Your NPS number seems low, those numbers are for PII-450, not for Athlon 1000. First i'll check if in somewhere you do system call too often, for example, when did you check time during search, are you call clock() too often? Try your engine without any external calls and see. Are you update 64bits counters at every node? Those can be slow too. What i'll do is to use a extra 32 bits counter, and only update 64 bits one when this 32 bits counter reached to a certain number, for example > 16K. This also served as a event to wake up the eventchecker, to see if time is up, and the user has input anything etc. also, try to follow those general principles, like try use int instead other type, alien data structure etc. All those small things can added into a big one. Last, are you sure that you didn't do a nodes >>= 2 in any place. :) Ren.
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