Author: Günther Simon
Date: 14:35:32 12/08/05
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On December 08, 2005 at 17:06:53, David Dahlem wrote: >On December 08, 2005 at 13:42:51, Günther Simon wrote: > >>On December 08, 2005 at 08:53:55, David Dahlem wrote: >> >>>Will there be additional UCI options other than "Search Direction"? And will >>>there be a way to adjust hash size? >>> >>>Thanks >>>Dave >>> >> >>Hi Dave, >> >>It is easy to get all UCI options by just starting any UCI.exe >>and typing in 'uci'. (of course you would get them also from >>looking into the logs) >> >>Below you see all supported UCI commands: >>(If you don't have an UCI hash command there is either >>a bug in the used GUI or you did something wrong) >> >>uci >>id name Rybka 1.0 Beta 32-bit >>id author Vasik Rajlich >>option name Hash type spin min 2 max 4096 default 32 >>option name Search Direction type combo default Very Positional var Very >>Positional var Slightly Pos >>itional var Slightly Tactical var Very Tactical >>uciok >> >>Regards, >>Guenther > >Hi Guenther > >Not too sure i understand, i'm fairly dumb about uci. Are you saying that i >should see a hash command option for Rybka in it's configuration window in >Arena? I only see a "Search Direction" option. If this is not the case, how do i >change the default hash setting for Rybka? > >Regards >Dave In this case I direct you back to Franz' answer :) He explained that you will _never_ see engine specific uci hash settings for _any_ UCI engine, _if_ you have set a general hash setting for all in Arena. This is a design decision of Arenas' author. BTW a lot of programs don't use exactly the hash you set up for them (internal stuff which is hidden might use some extra hash). I agree though that this normally doesn't happen for UCI programs and if, not by that margin you described in another post. Well I see that Rybka seems to use 16-17MB extra hash always, but that is at least no big problem for me, because I allow I safety margin up to 160MB including Nalimov cache and special hash tables, like pawn or eval hash. If you really have to care about that hash, either because you don't have enough phsyical ram, or because of justice reasons, you need to set all hash options manually and uncheck the general hash size in Arena. With 16MB setting for Rybka it should fit to your 32MB standard. Regards, Guenther
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