Author: Jorge Pichard
Date: 07:38:33 04/23/02
Go up one level in this thread
On April 23, 2002 at 09:58:05, Gian-Carlo Pascutto wrote: >On April 23, 2002 at 09:27:30, Günther Simon wrote: > >>>>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. > >This shouldn't be needed for Sjeng. What will happen though is that >Sjeng will read it's config file, set its hash to the size that's in >it (and cause heavy swapping, but i'll also access disk for EGTB >initialization so it may not be noticed). Then the UCI interface >will Sjeng to use a different hash size, and Sjeng will change it's >values. > >>>Both engines played as WB engines under Arena, but is it necessary to set the >>>IIRC default hash size in Sjeng.rc to 250MB? That is ridiculous. >>> >>>Pichard. >> >>Hmmm...I dont know perhaps a matter of taste? ;) Just to confirm again >>because some people made the same fault: you see in the rc file the >>main hash entry value at first position and this value uses 40bytes! >>per hash entry which other people also had overlooked. >>I.e. if you would have set an entry 24000000 that would have been >>960MB main hash instead :)) > >This was partly an oversight. I have 768M RAM, and Sjeng can use huge >hashtables even in bullet, so I always use this setting. I would have >expected Sjeng to crash on machines with less RAM, which I didn't think >was so bad (hint to user they have to read the manual), but it seems >Windows will keep working, and not everybody noticed the excessive >swapping :/ > >I have noticed the current format in the sjeng.rc causes too much >confusion, so Sjeng 13.0 will just allow you to enter the number >in megabytes. > >-- >GCP I do have an additiona 512 MB of memory that I can install on my P.C., but honestly how many Chess enthusiasts as an average have computer with more than 256 MB. the majority as an average and that is about 75% don't have more than 256 MB. Pichard.
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