Stockfish 12 8 Cores vs Stockfish 12 16 Core Results.

[mwyoung]

Stockfish 12 051020 (8 cores) vs Stockfish 12 051020 (16 cores) (TC=2m+1s) (200 Rounds)

Current standings

Code: Select all

Result:
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  #  name                           games    wins   draws  losses   score    los%  elo+/-
  1. Stockfish 051020 dup 16 cores     22       0      22       0    11.0-nan(ind)    -0.0
  2. Stockfish 051020 dup 8 cores      22       0      22       0    11.0-nan(ind)    -0.0

Cross table:
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  #  name                              score   games                      1                      2
  1. Stockfish 051020 dup 16 cores      11.0      22                      x ======================
  2. Stockfish 051020 dup 8 cores       11.0      22 ======================                      x

Tech:
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Tech (average nodes, depths, time/m per move, others per game), counted for computing moves only, ignored moves with zero nodes:
  #  name                             nodes/m         NPS  depth/m   time/m    moves     time
  1. Stockfish 051020 dup 16 cores     62074K    22222989     43.8      2.8     50.9    142.2
  2. Stockfish 051020 dup 8 cores      32161K    11410214     40.4      2.8     51.0    143.9
     all ---                           45993K    16784919     42.1      2.8     51.0    143.0

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[mwyoung]

Final result Stockfish 12 8 Cores vs Stockfish 12 16 Cores.

Hardware 2950x @ 4.1 Ghz. TC= 2m+1s, Book Perfect book 2019.

Stockfish 12 8 cores vs 16 cores +1.7 Elo

Code: Select all

Result:
-------------------------------------------------------------------------------------------
  #  name                           games    wins   draws  losses   score    los%  elo+/-
  1. Stockfish 051020 dup 16 cores    200       2     197       1   100.5    71.8     1.7
  2. Stockfish 051020 dup 8 cores     200       1     197       2    99.5    28.2    -1.7

Cross table:
-------------------------------------------------------------------------------------------
  #  name                              score   games                                                                                                                                                                                                        1                                                                                                                                                                                                        2
  1. Stockfish 051020 dup 16 cores     100.5     200                                                                                                                                                                                                        x ==============================================================0=1============================================================================1==========================================================
  2. Stockfish 051020 dup 8 cores       99.5     200 ==============================================================1=0============================================================================0==========================================================                                                                                                                                                                                                        x

Tech:
-------------------------------------------------------------------------------------------

Tech (average nodes, depths, time/m per move, others per game), counted for computing moves only, ignored moves with zero nodes:
  #  name                             nodes/m         NPS  depth/m   time/m    moves     time
  1. Stockfish 051020 dup 16 cores     57514K    20152492     41.9      2.9     49.5    141.2
  2. Stockfish 051020 dup 8 cores      29868K    10471507     39.0      2.9     49.5    141.2
     all ---                           42662K    15311939     40.4      2.9     49.5    141.2

[Leto]

Practically no benefit in that result.

[Hrvoje Horvatic]

Practically no benefit in that result.

There IS a benefit, it shows something is "fishy"... (pun intended)

[Milos]

Final result Stockfish 12 8 Cores vs Stockfish 12 16 Cores.

Hardware 2950x @ 4.1 Ghz. TC= 2m+1s, Book Perfect book 2019.

Stockfish 12 8 cores vs 16 cores +1.7 Elo

Code: Select all

Result:
-------------------------------------------------------------------------------------------
  #  name                           games    wins   draws  losses   score    los%  elo+/-
  1. Stockfish 051020 dup 16 cores    200       2     197       1   100.5    71.8     1.7
  2. Stockfish 051020 dup 8 cores     200       1     197       2    99.5    28.2    -1.7

Cross table:
-------------------------------------------------------------------------------------------
  #  name                              score   games                                                                                                                                                                                                        1                                                                                                                                                                                                        2
  1. Stockfish 051020 dup 16 cores     100.5     200                                                                                                                                                                                                        x ==============================================================0=1============================================================================1==========================================================
  2. Stockfish 051020 dup 8 cores       99.5     200 ==============================================================1=0============================================================================0==========================================================                                                                                                                                                                                                        x

Tech:
-------------------------------------------------------------------------------------------

Tech (average nodes, depths, time/m per move, others per game), counted for computing moves only, ignored moves with zero nodes:
  #  name                             nodes/m         NPS  depth/m   time/m    moves     time
  1. Stockfish 051020 dup 16 cores     57514K    20152492     41.9      2.9     49.5    141.2
  2. Stockfish 051020 dup 8 cores      29868K    10471507     39.0      2.9     49.5    141.2
     all ---                           42662K    15311939     40.4      2.9     49.5    141.2

Could you post PGN please?