Author: Uri Blass
Date: 04:21:34 09/13/02
Go up one level in this thread
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?
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)
3)What is succesful probe?
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.
Uri
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