Author: José Carlos
Date: 06:11:31 09/13/02
Go up one level in this thread
On September 13, 2002 at 08:21:05, Slater Wold wrote: >On September 13, 2002 at 07:21:34, Uri Blass wrote: > >>On September 12, 2002 at 21:47:50, Slater Wold wrote: >> >> > 33-> 1:54 -4.35 1. ... Ke6 2. Kg4 Kf6 3. Kf3 Kf5 4. >>> g4+ Ke6 5. Ke3 Kd6 6. h6 Kc6 7. Kd3 >>> Kb5 8. Kc3 Ka4 9. Kd2 Kb3 10. Kd3 Kb4 >>> 11. Kd2 Kc4 12. Ke3 Kc3 13. Kf2 Kxd4 >>> 14. Kf3 Kd3 15. Kf2 Ke4 16. Ke2 Kf4 >>> 17. Kd3 Kxg4 18. Kd4 >>> 34 2:56 ++ 1. ... Ke6!! >>> time=3:00 cpu=146% mat=0 n=39656530 fh=90% nps=219k >>> ext-> chk=3683159 cap=29397 pp=237076 1rep=44187 mate=895 >>> predicted=0 nodes=39656530 evals=7250326 >>> endgame tablebase-> probes done=399864 successful=115699 >>> hashing-> trans/ref=99% pawn=99% used=45% >>> SMP-> split=11479 stop=453 data=14/32 cpu=4:25 elap=3:00 >> >>For comparison without tablebases based on this post: >> >> time=3:00 cpu=395% mat=0 n=317723157 fh=90% nps=1760k >> ext-> chk=38571273 cap=300160 pp=1657789 1rep=606903 mate=15767 >> predicted=0 nodes=317723157 evals=45733071 >> endgame tablebase-> probes done=0 successful=0 >> hashing-> trans/ref=93% pawn=99% used=98% >> SMP-> split=27177 stop=1467 data=15/32 cpu=11:53 elap=3: >> >>Some question >>1)What is the reason for cpu=395% withouit tablebases and cpu=146% with >>tablebases? > >It's a bug in Crafty. It doesn't know how to properly count CPU time in >Windows. Really? I would say it's due to hard disk accessing, but I'm not sure, of course. José C. >>2)Do tablebases do crafty so slow in nodes per second(219 with against 1760 >>without) or part of the difference is because of different reasons(for example >>another application that ran at the same time) > >It's the TBs. > >>3)What is succesful probe? > >A TB position hit. > >>I think that every probe should to be succesful if the machine has all the 5 >>piece tablebases. >>Probes should be done only if there are at most 5 pieces. > >It searches TB on the PV. Perhaps there are no 5 piece in the PV given, but >there are plenty in the positions searched that are not displayed. > >>Uri
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