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hash memory test

Posted: Tue Mar 12, 2024 1:01 am
by JorgeRuiz
hash memory test


A few days ago the question arose, in my case, whether it was better to perform a hash test on each chess engine that participated in a tournament and assign an amount according to the results, that is, each engine a different size. Or, on the contrary, test all the engines participating in the tournament and look for a size that (does not exceed 30% ram usage) is the same for all engines. Andrew from Openbench suggested to me that it was better to have the same size for everyone to avoid bias towards one chess engine or another. What do you suggest? Thanks in advance.
Jorge

Re: hash memory test

Posted: Tue Mar 12, 2024 1:36 am
by Graham Banks
In CCRL testing each engine uses the same amount of hash where possible.
256mb or 512mb per core.

Re: hash memory test

Posted: Thu Mar 21, 2024 9:06 pm
by Gabor Szots
For my blitz tests I always use 256 MB hash when possible.

Re: hash memory test

Posted: Thu Mar 21, 2024 11:42 pm
by Ray
In CCRL all engines in a tournament or gauntlet compete under the same conditions, so a common hash size.

Some engines do use a little bit more than what is set.

Re: hash memory test

Posted: Fri Mar 22, 2024 12:17 am
by bastiball
I use 256mb, and I already did a test about it that 256mb performs well than 128 and 512 in our time control 2+1 or 40/2

Re: hash memory test

Posted: Fri Mar 22, 2024 4:41 am
by Ray
I use 512MB for the Chess324 list at 2+1. Being a new list I could choose what I wanted.