Author: Robert Hyatt
Date: 19:25:49 02/05/06
Go up one level in this thread
On February 05, 2006 at 15:46:39, chandler yergin wrote: >On February 04, 2006 at 22:12:34, Robert Hyatt wrote: > >>On February 04, 2006 at 13:53:28, chandler yergin wrote: >> >>>On February 04, 2006 at 12:19:33, dhanial wrote: >>> >>>>What is the best hash table settings for rybka for 10 to 15 min games and for 1 >>>>to 3 min games. >>>Default Value >>>as true for any engine. >> >> >>This is not true. At least not for Crafty. The longer the time control, the >>bigger hash should be, as larger hash provides better search times (not NPS >>times). The default for Crafty is simply small so that it won't cause problems >>on machines with very small memory sizes. > >How soon we forget.. >http://www.rebel.nl/ches2010.htm I didn't forget a thing. No idea what your link was supposed to prove, but I've run the test many times. Bigger hash means faster search speeds, until you reach some magic point where the entire tree you are searching can be stored without losing information to table overwrites. But the minute you increase the time control, hash once again gets overwritten, and the search slows down compared to the speed with optimal hash. I'm not sure why you want to argue this point. It is trivial to test and prove exactly what I said is the case for Crafty.
This page took 0.01 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.