The first SMP version of Critter is available:
http://www.mediafire.com/?jgydzytfyro
Main changes:
* SMP support (max 8 threads). If hyperthreading is turned on, please set number of threads to number of physical cores.
* Support of "searchmoves" UCI option (useful for IDEA)
* Decreased middlegame pawn value, but much larger passed pawn bonuses
* Added some endgame heuristics (KRPKR, KQKP, opposite colored bishop endings)
* Somewhat slower NPS, but faster time-to-depth
My own single thread testing against Critter 0.52b shows 42 ELO improvement (with error margins +-7). I don't have a precise figure about performance vs. other engines.
Enjoy,
Richard
Critter goes SMP (version 0.60 is released)
Moderator: Ras
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Re: Critter goes SMP (version 0.60 is released)
Thanks, looks good. Any JA compile ?
Dont forget to 'get ideas from Robbo code' to get a big boost as stockfish 1.7
Dont forget to 'get ideas from Robbo code' to get a big boost as stockfish 1.7

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Re: Critter goes SMP (version 0.60 is released)
HOORAY!rvida wrote:The first SMP version of Critter is available:
http://www.mediafire.com/?jgydzytfyro
Main changes:
* SMP support (max 8 threads). If hyperthreading is turned on, please set number of threads to number of physical cores.
* Support of "searchmoves" UCI option (useful for IDEA)
* Decreased middlegame pawn value, but much larger passed pawn bonuses
* Added some endgame heuristics (KRPKR, KQKP, opposite colored bishop endings)
* Somewhat slower NPS, but faster time-to-depth
My own single thread testing against Critter 0.52b shows 42 ELO improvement (with error margins +-7). I don't have a precise figure about performance vs. other engines.
Enjoy,
Richard
Seriously, I've been waiting an MP release since like 0.42 or something.
Protector 1.3.4 JA 64-bit,
Crafty 23.2 JA 64-bit,
Scorpio 2.5 JA 64-bit,
and bright-0.5c will likely be its first opponents. Maybe some version of Toga also.
Congratulations,
Peter
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Re: Critter goes SMP (version 0.60 is released)
Sounds like a sensible selection of opponents.alpha123 wrote: Protector 1.3.4 JA 64-bit,
Crafty 23.2 JA 64-bit,
Scorpio 2.5 JA 64-bit,
and bright-0.5c will likely be its first opponents. Maybe some version of Toga also
gbanksnz at gmail.com
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Re: Critter goes SMP (version 0.60 is released)
Thanks. The CCRL list helpedGraham Banks wrote:Sounds like a sensible selection of opponents.alpha123 wrote: Protector 1.3.4 JA 64-bit,
Crafty 23.2 JA 64-bit,
Scorpio 2.5 JA 64-bit,
and bright-0.5c will likely be its first opponents. Maybe some version of Toga also

Peter
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Re: Critter goes SMP (version 0.60 is released)
I'm sure this one is going to jump in CCRL's top 10 on 4 cores. And sorry if it's an underestimation.
Nicely done!
Nicely done!
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Re: Critter goes SMP (version 0.60 is released)
Any plans for a linux compile? I - and I bet many more people here - would love a linux version. (Or maybe the source...)
Anyway, thanks for the engine.
Anyway, thanks for the engine.
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Re: Critter goes SMP (version 0.60 is released)
I've been waiting for this.
I'm going to run a Gauntlet on my 4.0 GHZ I7-920. Look for the crostable and a link to the games on the "Computer Chess Club: Tournaments and Matches" forum, sometime before the weekend.
I'm going to run a Gauntlet on my 4.0 GHZ I7-920. Look for the crostable and a link to the games on the "Computer Chess Club: Tournaments and Matches" forum, sometime before the weekend.
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Re: Critter goes SMP (version 0.60 is released)
Hello Richard!
Looking forward to test your engine.
Here's your new beauty in action:

Looking forward to test your engine.
Here's your new beauty in action:
