Author: Günther Simon
Date: 06:01:34 04/23/02
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On April 23, 2002 at 08:47:16, Jorge Pichard wrote: >On April 23, 2002 at 08:30:28, Günther Simon wrote: > >>On April 23, 2002 at 07:49:10, mike schoonover wrote: >> >>>could it be a problem with pondering. >>>gromit382 is severly handicapped with ponder off? >>>same output 4,5 ply at longer time control. >>>regards >>>mike >> >>No Mike, if you will look again at the FCP Forum you can see >>from the statement of one of Gromits authors (Kai Skibbe) as >>a reply to my post concerning your match that its obviously >>not the pondering issue which caused search depths on your >>machine in 19sec which I reach on a slower machine in 0.22sec :)) >>Either it was your setup or the GUI itself which screwed things up. >>BTW you should really update to the newest Arena as you wrote that >>you used the oldest Arena beta ever released ;) >>OTH it seems that Jorge used the newest beta of it in the Yace vs. >>Sjeng match and the same weird searches happened... only other thing >>I can guess is a wrong hastable size for Sjeng as the default is >>_very_ high and one has to change it if Ram is beyond 512MB otherwise >>swapping can slow down the speed of Sjeng a really lot. >> >>Regards, >>Günther > >The hashtable size could be the problem if any, since I also noticed that in >several occasion YACE was only reaching depth 4 and 5 too. Anyway, the hashtable >size was set for 24 MB, but it shouldn't be any problem with a 256 SDRAM P.C. > >Jorge. I forgot to mention also that I missed the information if both played as WB engine or UCI under Arena? If you played both as UCI under Arena I suppose you set the hash directly in the GUI? but it might be possible that this does _not_ work with Sjeng and Yace too because you had either too delete their own config files or set the hash also in them. IIRC the default hash size in Sjeng.rc is already ~250MB!! which is of course like hell when you 'only' have 256MB Ram at all. You should take a look at the Sjeng.rc file which is a plain text file and can be opened with any editor and I suggest also _before_ running such matches to prove the amount of real used hash by some tools like i.e. TaskInfo. Regards, Günther
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