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Critter goes SMP (version 0.60 is released)
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Richard Vida



Joined: 16 Apr 2009
Posts: 481
Location: Slovakia, EU

PostPost subject: Critter goes SMP (version 0.60 is released)    Posted: Tue Apr 13, 2010 2:13 am Reply to topic Reply with quote

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
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Subject Author Date/Time
Critter goes SMP (version 0.60 is released) Richard Vida Tue Apr 13, 2010 2:13 am
      Re: Critter goes SMP (version 0.60 is released) Graham Banks Tue Apr 13, 2010 2:26 am
      Re: Critter goes SMP (version 0.60 is released) Zagalo Martini Tue Apr 13, 2010 2:32 am
      Re: Critter goes SMP (version 0.60 is released) Peter C Tue Apr 13, 2010 2:34 am
            Re: Critter goes SMP (version 0.60 is released) Graham Banks Tue Apr 13, 2010 2:46 am
                  Re: Critter goes SMP (version 0.60 is released) Peter C Tue Apr 13, 2010 3:11 am
                        Re: Critter goes SMP (version 0.60 is released) Mincho Georgiev Tue Apr 13, 2010 6:12 am
      Re: Critter goes SMP (version 0.60 is released) Horacio Montenegro Tue Apr 13, 2010 1:33 pm
            Re: Critter goes SMP (version 0.60 is released) Marc Halstern Tue Apr 13, 2010 6:35 pm
            Re: Critter goes SMP (version 0.60 is released) Richard Vida Wed Apr 14, 2010 10:22 am
                  Re: Critter goes SMP (version 0.60 is released) Horacio Montenegro Wed Apr 14, 2010 1:22 pm
                  Re: Critter goes SMP (version 0.60 is released) Swaminathan Thu Apr 15, 2010 8:39 am
      Re: Critter goes SMP (version 0.60 is released) Martin Thoresen Tue Apr 13, 2010 7:15 pm
      Re: Critter goes SMP (version 0.60 is released) Carlos Pesce Wed Apr 14, 2010 1:06 am
            Re: Critter goes SMP (version 0.60 is released) Richard Vida Wed Apr 14, 2010 10:39 am
                  Re: Critter goes SMP (version 0.60 is released) Carlos Pesce Wed Apr 14, 2010 2:48 pm
      Re: Critter goes SMP (version 0.60 is released) Ted Summers Wed Apr 14, 2010 6:28 pm
            Re: Critter goes SMP (version 0.60 is released) Dr.Wael Deeb Wed Apr 14, 2010 8:14 pm
      Re: Critter goes SMP (version 0.60 is released) Zagalo Martini Fri Apr 16, 2010 11:21 am
            Re: Critter goes SMP (version 0.60 is released) Marc Halstern Sat Apr 17, 2010 4:13 am
                  Re: Critter goes SMP (version 0.60 is released) Richard Allbert Sat Apr 17, 2010 8:06 am
                        Re: Critter goes SMP (version 0.60 is released) Marc Halstern Sat Apr 17, 2010 3:05 pm
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