Author: Andreas Herrmann
Date: 09:38:56 06/19/04
Go up one level in this thread
On June 19, 2004 at 12:23:15, Gian-Carlo Pascutto wrote: >On June 19, 2004 at 12:19:02, Robert Allgeuer wrote: > >>Yes, I confused the two. But how would an engine measure how full its hash >>tables are; looks difficult to me? Furthermore this would mean that in most >>engines - as they do not clear hashtables after each move - this value would >>have to approach 100% during the course of a game, which I did not observe >>for a single engine so far. > >Positions pertaining to a previous search are not counted. i.e. For the >purpose of this statistic you can consider the engine to *do* clear the >hashtable after each move. > >At least this is how it works in Sjeng, but I suspect most engines work >like this. > >-- >GCP Do you count only the fill rate from one main hash table - or from all hash tables? Do you subtract the hash entrys, which are overwritten in the current search? I ask this, because there is no clear definition inside the UCI protocol. And that's the reason, why i think, you can't compare the fill rates between different engines, if you don't know what a special engine author is sending there to the GUI. Andreas
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