Dev Builds » 20151020-0458

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 15. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo
ncm-dbt-01 06:05:13 584285 4000 8 3341 651 -416.46 ± 11.97 1341 651 8 0 0 -1079.2 ± 106.09
ncm-dbt-02 06:05:56 590027 4002 10 3349 643 -417.69 ± 12.07 1348 643 10 0 0 -1040.44 ± 121.64
ncm-dbt-03 06:07:31 582195 3998 6 3307 685 -408.01 ± 11.56 1308 685 6 0 0 -1129.16 ± 86.44
ncm-dbt-04 06:06:17 568018 4000 9 3333 658 -413.92 ± 11.88 1333 658 9 0 0 -1058.7 ± 114.29
ncm-dbt-05 06:06:48 583158 4000 10 3297 693 -403.78 ± 11.48 1297 693 10 0 0 -1040.35 ± 121.68
20000 43 16627 3330 -411.91 ± 5.27 6627 3330 43 0 0 -1066.64 ± 53.55

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
478529 ncm-dbt-02 591082 2 0 2 0 -1041.08 ± 395.59 1 0 0 0 0 -1129.65 ± 376.02
478528 ncm-dbt-03 579702 498 1 414 83 -412.03 ± 33.67 165 83 1 0 0 -1078.2 ± 155.3
478527 ncm-dbt-04 569350 500 2 436 62 -460.3 ± 40.65 186 62 2 0 0 -958.31 ± 196.57
478526 ncm-dbt-05 583196 500 0 416 84 -415.03 ± 33.36 166 84 0 0 0 -1199.83 ± 0.0
478525 ncm-dbt-01 582945 500 2 420 78 -419.6 ± 35.14 170 78 2 0 0 -958.31 ± 196.57
478524 ncm-dbt-02 589882 500 1 407 92 -393.59 ± 31.39 157 92 1 0 0 -1078.89 ± 154.95
478523 ncm-dbt-03 578383 500 0 422 78 -429.04 ± 35.06 172 78 0 0 0 -1199.83 ± 0.0
478522 ncm-dbt-04 567126 500 1 404 95 -387.55 ± 30.69 154 95 1 0 0 -1078.89 ± 154.95
478521 ncm-dbt-01 585928 500 2 427 71 -436.42 ± 37.34 177 71 2 0 0 -958.31 ± 196.57
478520 ncm-dbt-05 583698 500 0 412 88 -406.19 ± 32.32 162 88 0 0 0 -1199.83 ± 0.0
478519 ncm-dbt-02 590010 500 1 428 71 -441.49 ± 37.32 178 71 1 0 0 -1078.89 ± 154.95
478518 ncm-dbt-04 566691 500 2 419 79 -417.3 ± 34.85 169 79 2 0 0 -958.31 ± 196.57
478517 ncm-dbt-03 580779 500 0 416 84 -415.03 ± 33.36 166 84 0 0 0 -1199.83 ± 0.0
478516 ncm-dbt-01 584916 500 0 418 82 -419.59 ± 33.91 168 82 0 0 0 -1199.83 ± 0.0
478515 ncm-dbt-05 583196 500 2 406 92 -389.55 ± 31.43 156 92 2 0 0 -958.31 ± 196.57
478514 ncm-dbt-02 591814 500 1 420 79 -421.92 ± 34.82 170 79 1 0 0 -1078.89 ± 154.95
478513 ncm-dbt-04 568951 500 0 425 75 -436.41 ± 35.97 175 75 0 0 0 -1199.83 ± 0.0
478512 ncm-dbt-01 586774 500 1 415 84 -410.57 ± 33.42 165 84 1 0 0 -1078.89 ± 154.95
478511 ncm-dbt-03 580199 500 1 403 96 -385.58 ± 30.46 153 96 1 0 0 -1078.89 ± 154.95
478510 ncm-dbt-02 589668 500 2 421 77 -421.92 ± 35.44 171 77 2 0 0 -958.31 ± 196.57
478509 ncm-dbt-05 585843 500 0 413 87 -408.36 ± 32.58 163 87 0 0 0 -1199.83 ± 0.0
478508 ncm-dbt-04 567482 500 1 414 85 -408.37 ± 33.16 164 85 1 0 0 -1078.89 ± 154.95
478507 ncm-dbt-01 581361 500 2 414 84 -406.19 ± 33.46 164 84 2 0 0 -958.31 ± 196.57
478506 ncm-dbt-05 583237 500 2 404 94 -385.58 ± 30.96 154 94 2 0 0 -958.31 ± 196.57
478505 ncm-dbt-02 586816 500 1 416 83 -412.79 ± 33.69 166 83 1 0 0 -1078.89 ± 154.95
478504 ncm-dbt-03 581028 500 1 399 100 -377.86 ± 29.57 149 100 1 0 0 -1078.89 ± 154.95
478037 ncm-dbt-05 579413 500 2 411 87 -399.8 ± 32.67 161 87 2 0 0 -958.31 ± 196.57
478036 ncm-dbt-04 567363 500 1 412 87 -404.04 ± 32.63 162 87 1 0 0 -1078.89 ± 154.95
478035 ncm-dbt-01 583070 500 1 419 80 -419.6 ± 34.53 169 80 1 0 0 -1078.89 ± 154.95
478034 ncm-dbt-03 583070 500 1 414 85 -408.37 ± 33.16 164 85 1 0 0 -1078.89 ± 154.95
478033 ncm-dbt-02 590739 500 0 414 86 -410.56 ± 32.83 164 86 0 0 0 -1199.83 ± 0.0
478032 ncm-dbt-05 584369 500 1 420 79 -421.92 ± 34.82 170 79 1 0 0 -1078.89 ± 154.95
478031 ncm-dbt-01 583782 500 0 416 84 -415.03 ± 33.36 166 84 0 0 0 -1199.83 ± 0.0
478030 ncm-dbt-04 568593 500 0 415 85 -412.78 ± 33.1 165 85 0 0 0 -1199.83 ± 0.0
478029 ncm-dbt-02 589326 500 1 419 80 -419.6 ± 34.53 169 80 1 0 0 -1078.89 ± 154.95
478028 ncm-dbt-03 586054 500 0 423 77 -431.46 ± 35.35 173 77 0 0 0 -1199.83 ± 0.0
478027 ncm-dbt-05 582318 500 3 415 82 -406.19 ± 34.01 165 82 3 0 0 -887.58 ± 222.18
478026 ncm-dbt-01 585506 500 0 412 88 -406.19 ± 32.32 162 88 0 0 0 -1199.83 ± 0.0
478025 ncm-dbt-02 590911 500 3 422 75 -421.92 ± 36.05 172 75 3 0 0 -887.58 ± 222.18
478024 ncm-dbt-04 568593 500 2 408 90 -393.59 ± 31.91 158 90 2 0 0 -958.31 ± 196.57
478023 ncm-dbt-03 588345 500 2 416 82 -410.57 ± 34.0 166 82 2 0 0 -958.31 ± 196.57

Commit

Commit ID ecc5ff6693f116f4a8ae5f5080252f29b279c0a1
Author mbootsector
Date 2015-10-20 04:58:08 UTC
Lazy SMP Start all threads searching on root position and use only the shared TT table as synching scheme. It seems this scheme scales better than YBWC for high number of threads. Verified for nor regression at STC 3 threads LLR: -2.95 (-2.94,2.94) [-3.00,1.00] Total: 40232 W: 6908 L: 7130 D: 26194 Verified for nor regression at LTC 3 threads LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 28186 W: 3908 L: 3798 D: 20480 Verified for nor regression at STC 7 threads LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 3607 W: 674 L: 526 D: 2407 Verified for nor regression at LTC 7 threads LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 4235 W: 671 L: 528 D: 3036 Tested with fixed games at LTC with 20 threads ELO: 44.75 +-7.6 (95%) LOS: 100.0% Total: 2069 W: 407 L: 142 D: 1520 Tested with fixed games at XLTC (120secs) with 20 threads ELO: 28.01 +-6.7 (95%) LOS: 100.0% Total: 2275 W: 349 L: 166 D: 1760 Original patch of mbootsector, with additional work from Ivan Ivec (log formula), Joerg Oster (id loop simplification) and Marco Costalba (assorted formatting and rework). Bench: 8116244
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