Author: Dave Gomboc
Date: 18:24:26 03/16/04
Go up one level in this thread
On March 16, 2004 at 20:49:35, Dave Gomboc wrote: >On March 16, 2004 at 10:15:09, William Penn wrote: > >>On March 16, 2004 at 02:53:53, Dave Gomboc wrote: >> >>>>>Sounds like there's a defect in the GUI: it shouldn't let you try to change the >>>>>hash table size in mid-search. >>>>> >>>>>Dave >>>> >>>>I think it should be intelligent enough to allow changing the hash size anytime. >>> >>>I strongly doubt the reasonableness of manipulating the hash table in >>>mid-search. You can do it, but that doesn't make it a good idea. >>> >>>Dave >> >>That's done all the time. Consider what happens when you use the + and - options >>to increase/decrease the number of lines in the engine window in infinite >>analysis mode. That's handled "on the fly" without any problem, and the hash >>table is certainly involved. Prior search results are obviously retained in the >>hash table there after making a change. It doesn't cause a problem with any >>engine, insofar as I'm aware. > >Of course it doesn't cause a problem -- the hash table doesn't need to change >configuration when you decide to report PVs for multiple nodes at the root. replace nodes with moves in that sentence :-) >You can truncate your hash table in mid-search, but you'll end up with a ton of >hash misses that will drag the efficiency of your search way down. > >Dave
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