Author: Gordon Rattray
Date: 12:27:16 01/31/05
Go up one level in this thread
On January 31, 2005 at 14:38:03, Vincent Lejeune wrote: >On January 31, 2005 at 11:45:32, Gordon Rattray wrote: > >>I tested this position using Shredder 8 (about 7 mins), Deep Fritz 8 (13 secs) >>and Deep Junior 9 (about 7 mins) [dual Opteron 248]. >> >>Is there any caching going on between tests? Either disk caching in the >>OS/hardware, or in my cache for TBs (set to 128 MB) ?! I'm just wondering if >>the later tests benefit from the first test, especially if there's a big overlap >>of positions getting accessed in the TBs between tests. >> >>Unfortunately I don't have time to experiment. >> >>thanks >> >>Gordon > >1) Yes , previsou readed information still in cache , but >2) There's about no TB access for this position, so about no gain (< 5 sec after >5 min) because caching > >Could you run Shredder 8 for 10 min and post the log here, please ? Ok, I've appended it at the end. It was a bit quicker this time to find g5. But I'm assuming this is mainly due to the nature of the SMP search. I think this search has a lot of TB access (1891131 hits in last iteration). If the TB cache was empty prior to start of the test, then that's 1891131 positions that need to come from the disk. But if the cache contained entries from a previous test (e.g. same position with a different engine), wouldn't that save time? Gordon New game, 8/4p3/p4kp1/8/6pP/4P1K1/P7/8 b - - 0 1 Analysis by Shredder 8: 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 1/2 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 3kN 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 3kN 1...Kf5 2.e4+ Kxe4 3.a4 µ (-1.17) Depth: 7/9 00:00:01 3kN 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.a4 Kd3 5.Kf3 a5 -+ (-2.28) Depth: 8/8 00:00:01 6kN, tb=3 1...Kf5 2.Kf2 Ke4 3.a4 -+ (-2.79) Depth: 8/10 00:00:01 7kN, tb=3 1...Kf5 2.a4 a5 3.Kf2 Ke4 4.Kg3 Kxe3 5.Kxg4 -+ (-3.07) Depth: 9/9 00:00:01 8kN, tb=3 1...Kf5 2.e4+ Ke5 3.Kxg4 g5 -+ (-3.32) Depth: 9/10 00:00:01 12kN, tb=9 1...Kf5 2.e4+ Ke5 3.Kxg4 Kxe4 4.Kg5 e5 5.Kxg6 Kd3 -+ (-3.32) Depth: 10/10 00:00:01 14kN, tb=10 1...Kf5 2.a4 e5 3.a5 Ke4 4.Kf2 Kd3 5.Kg3 Kxe3 6.Kxg4 Kd3 7.Kf3 e4+ 8.Kf2 -+ (-3.53) Depth: 10/12 00:00:01 21kN, tb=20 1...Kf5 2.e4+ Kxe4 3.Kxg4 Kd4 4.Kg5 e5 5.Kxg6 e4 6.h5 Ke5 7.h6 -+ (-3.28) Depth: 11/13 00:00:01 33kN, tb=65 1...Kf5 2.e4+ Kxe4 3.Kxg4 Kd4 4.Kg5 e5 5.Kxg6 a5 6.Kf5 e4 7.Kg4 e3 -+ (-2.82) Depth: 12/12 00:00:01 35kN, tb=66 1...Kf5 2.e4+ Ke5 3.Kxg4 Kd4 4.Kg5 Kd3 -+ (-2.53) Depth: 12/14 00:00:01 37kN, tb=68 1...Kf5 2.e4+ Ke5 3.Kxg4 Kf6 4.a3 a5 5.Kf3 Kf7 -+ (-1.97) Depth: 12/14 00:00:01 38kN, tb=68 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd3 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 e1Q 9.h8Q µ (-0.76) Depth: 12/15 00:00:01 53kN, tb=111 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd3 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 a5 9.h8Q e1Q µ (-0.85) Depth: 13/17 00:00:01 65kN, tb=186 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd3 5.h5 gxh5 6.Kg6 a5 7.Kg7 e4 8.Kf6 h4 -+ (-1.60) Depth: 14/18 00:00:01 75kN, tb=235 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd3 5.h5 gxh5 6.Kg6 a5 7.Kg7 e4 8.Kf6 h4 -+ (-1.60) Depth: 14/18 00:00:01 75kN, tb=237 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 a5 5.Kxg6 Kd5 6.Kf5 e4 7.Kg4 e3 8.Kf3 e2 -+ (-1.60) Depth: 14/18 00:00:01 85kN, tb=429 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd3 5.h5 gxh5 6.Kh6 µ (-1.30) Depth: 15/20 00:00:02 102kN, tb=508 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd3 5.h5 gxh5 6.Kh6 µ (-1.30) Depth: 15/20 00:00:02 121kN, tb=594 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd4 5.Kxg6 Kd3 -+ (-1.50) Depth: 16/22 00:00:02 155kN, tb=941 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd3 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 e1Q 9.h8Q Qe6+ 10.Qf6 Qg8+ 11.Kf5 Qxa2 -+ (-1.54) Depth: 17/25 00:00:03 201kN, tb=1449 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd3 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 e1Q 9.h8Q Qe6+ 10.Qf6 Qg8+ 11.Kf5 Qxa2 12.Qe5 -+ (-1.42) Depth: 18/32 00:00:04 277kN, tb=1932 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd3 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 e1Q 9.h8Q Qe6+ 10.Qf6 Qg8+ 11.Kf5 Qxa2 12.Qd6+ Kc3 -+ (-1.51) Depth: 19/36 00:00:05 407kN, tb=2794 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd3 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 e1Q 9.h8Q Qe6+ 10.Qf6 Qg8+ 11.Kf5 Qd5+ 12.Qe5 Qxa2 13.Qe4+ Kc3 -+ (-1.42) Depth: 20/36 00:00:06 605kN, tb=4137 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd5 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 e1Q 9.h8Q Qe4+ 10.Kg5 Qg2+ 11.Kf4 a5 12.Qd8+ Kc6 µ (-1.23) Depth: 21/38 00:00:07 1053kN, tb=6141 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd3 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 e1Q 9.h8Q Qe4+ 10.Kf7 Qc4+ 11.Ke7 Qxa2 12.Qh3+ Kd4 13.Qh8+ Kc5 14.Qc8+ Kb4 15.Qb7+ Kc5 µ (-1.04) Depth: 22/40 00:00:09 1897kN, tb=8290 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd3 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 e1Q 9.h8Q Qe4+ 10.Kf7 Qc4+ 11.Ke7 Qxa2 12.Qh3+ Kd4 13.Qh8+ Kc5 14.Qc3+ Kb5 15.Qe5+ Ka4 µ (-1.08) Depth: 23/43 00:00:10 2594kN, tb=10497 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd5 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 e1Q 9.h8Q Qe4+ 10.Kg5 Qg2+ 11.Kf4 Qf2+ 12.Kg4 Qe2+ 13.Kf4 Qc4+ 14.Ke3 Qc1+ 15.Ke2 Qc2+ µ (-1.00) Depth: 24/47 00:00:14 5490kN, tb=16845 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd5 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 e1Q 9.h8Q Qe4+ 10.Kg5 Qg2+ 11.Kf4 Qf2+ 12.Kg5 Qd2+ 13.Kf5 Qc2+ 14.Kf4 Qc1+ 15.Kf3 Qa3+ µ (-0.85) Depth: 25/46 00:00:18 8045kN, tb=25907 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd5 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 e1Q 9.h8Q Qe4+ 10.Kg5 Qg2+ 11.Kf4 Qf2+ 12.Kg5 Qd2+ 13.Kf5 Qc2+ 14.Kf4 Qc1+ 15.Kf3 Qa3+ µ (-0.75) Depth: 26/49 00:00:35 27532kN, tb=51386 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd5 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 e1Q 9.h8Q Qe4+ 10.Kg5 Qg2+ 11.Kf4 Qf2+ 12.Kg4 Qf1 13.Qd8+ Kc4 ³ (-0.68) Depth: 27/55 00:01:05 65921kN, tb=127614 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd5 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 e1Q 9.h8Q Qe4+ 10.Kg5 Qg2+ 11.Kf4 Qf2+ 12.Kg4 Qe2+ 13.Kg5 Qd2+ 14.Kg4 Qb4+ 15.Kf3 Qa3+ ³ (-0.59) Depth: 28/54 00:01:56 141163kN, tb=271159 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd5 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 e1Q 9.h8Q Qe4+ 10.Kg5 Qg2+ 11.Kf4 Qf2+ 12.Kg5 Qe3+ 13.Kg6 Qg3+ 14.Kf5 Qg2 ³ (-0.57) Depth: 29/56 00:02:55 231104kN, tb=386928 1...Kf5 2.e4+ Kxe4 3.Kxg4 e5 4.Kg5 Kd5 5.Kxg6 e4 6.h5 e3 7.h6 e2 8.h7 e1Q 9.h8Q Qe4+ 10.Kg5 Qg2+ 11.Kf4 Qf2+ 12.Kg5 Qe3+ 13.Kg6 Qg3+ 14.Kf5 Qg2 ³ (-0.53) Depth: 30/59 00:04:41 390598kN, tb=682958 1...g5 2.h5 Kg7 3.Kxg4 Kh6 4.e4 a5 5.e5 a4 6.a3 e6 7.Kg3 Kxh5 8.Kh3 g4+ 9.Kg3 Kg5 10.Kf2 g3+ 11.Kf3 Kf5 12.Kxg3 Kxe5 13.Kf3 Kf5 14.Ke3 ³ (-0.54) Depth: 30/59 00:04:51 400607kN, tb=766129 1...g5 2.h5 Kg7 3.Kxg4 Kh6 4.e4 a5 5.e5 a4 6.Kf3 Kxh5 7.Ke2 µ (-0.89) Depth: 30/59 00:04:53 403953kN, tb=797386 1...g5 2.h5 Kg7 3.Kxg4 Kh6 4.e4 a5 5.a4 e5 6.Kf5 Kxh5 7.Kxe5 g4 8.Kd4 g3 9.Ke3 Kh4 10.e5 Kh3 11.e6 g2 12.Kf2 Kh2 13.Ke3 g1Q+ 14.Kf3 -+ (-12.09) Depth: 30/59 00:07:43 696548kN, tb=1226133 1...g5 2.h5 Kg7 3.Kxg4 Kh6 4.e4 a5 5.a4 e5 6.Kf5 Kxh5 7.Kxe5 g4 8.Kd4 g3 9.Ke3 Kh4 10.e5 Kh3 11.e6 g2 12.Kf2 Kh2 13.e7 g1Q+ 14.Ke2 Qg4+ 15.Kf2 Qxa4 -+ (-12.34) Depth: 31/48 00:08:00 727513kN, tb=1557141 1...g5 2.h5 Kg7 3.Kxg4 Kh6 4.e4 a5 5.a4 e5 6.Kf5 Kxh5 7.Kxe5 g4 8.Kd4 g3 9.Ke3 Kh4 10.e5 Kh3 11.e6 g2 12.Kf2 Kh2 13.e7 g1Q+ 14.Ke2 Qg4+ 15.Kd2 Qxa4 -+ (-12.61) Depth: 31/49 00:08:17 763175kN, tb=1891131
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