Hash experiment - Komodo Dragon 2.5.1

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fastgm
Posts: 818
Joined: Mon Aug 19, 2013 6:57 pm

Hash experiment - Komodo Dragon 2.5.1

Post by fastgm »

Hash experiment with Komodo Dragon 2.5.1:

I would have expected a bigger difference.
But at this time control 2' + 1" it seems to be relatively irrelevant what hash size between 128 MB and 2048 MB is used.

Code: Select all

Playing conditions:

CPU:           Intel Dual Xeon E5-2673v4 (40 Core)
OS:            Windows 10 64-Bit
Tool:          Cutechess-Cli
Komodo Dragon: 1 Core, 64 Bit, default settings
Hash-Tables:   128, 256, 512, 1024 and 2048 MB
Time control:  2 minutes + 1 second
Tablebases:    Adjudication, 6 pieces
Openings:      TCEC_9-20.pgn (600 positions, changing colors)
Ponder:        Off
Learning:      Off

   # Engine                        :    Elo  Error   Games   Points    (%)       W      D      L     D(%)   CFS
 ---------------------------------------------------------------------------------------------------------------
   1 Komodo Dragon 2.5.1 - 1024    :   3001      3    9600   4821.0   50.22    1559   6524   1517   67.96    55
   2 Komodo Dragon 2.5.1 - 128     :   3001      3    9600   4815.5   50.16    1519   6593   1488   68.68    69
   3 Komodo Dragon 2.5.1 - 256     :   3000      3    9600   4795.0   49.95    1537   6516   1547   67.88    55
   4 Komodo Dragon 2.5.1 - 2048    :   2999      3    9600   4789.5   49.89    1542   6495   1563   67.66    60
   5 Komodo Dragon 2.5.1 - 512     :   2999      3    9600   4779.0   49.78    1527   6504   1569   67.75   ---

White advantage = 83.16 +/- 1.29
Draw rate (equal opponents) = 75.58 % +/- 0.34

Head to head statistics:

1) Komodo Dragon 2.5.1 - 1024 3001  :   9600 (+1559,=6524,-1517),  50.2 %

   vs.                              :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Komodo Dragon 2.5.1 - 128        :   2400 (  380, 1660,  360),  50.4 :     +0,    3,   55.4
   Komodo Dragon 2.5.1 - 256        :   2400 (  392, 1617,  391),  50.0 :     +2,    3,   73.9
   Komodo Dragon 2.5.1 - 2048       :   2400 (  395, 1634,  371),  50.5 :     +2,    3,   78.0
   Komodo Dragon 2.5.1 - 512        :   2400 (  392, 1613,  395),  49.9 :     +3,    3,   84.7

2) Komodo Dragon 2.5.1 - 128  3001  :   9600 (+1519,=6593,-1488),  50.2 %

   vs.                              :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Komodo Dragon 2.5.1 - 1024       :   2400 (  360, 1660,  380),  49.6 :     -0,    3,   44.6
   Komodo Dragon 2.5.1 - 256        :   2400 (  368, 1665,  367),  50.0 :     +1,    3,   69.0
   Komodo Dragon 2.5.1 - 2048       :   2400 (  407, 1623,  370),  50.8 :     +2,    3,   73.0
   Komodo Dragon 2.5.1 - 512        :   2400 (  384, 1645,  371),  50.3 :     +2,    3,   80.9

3) Komodo Dragon 2.5.1 - 256  3000  :   9600 (+1537,=6516,-1547),  49.9 %

   vs.                              :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Komodo Dragon 2.5.1 - 1024       :   2400 (  391, 1617,  392),  50.0 :     -2,    3,   26.1
   Komodo Dragon 2.5.1 - 128        :   2400 (  367, 1665,  368),  50.0 :     -1,    3,   31.0
   Komodo Dragon 2.5.1 - 2048       :   2400 (  371, 1613,  416),  49.1 :     +0,    3,   55.3
   Komodo Dragon 2.5.1 - 512        :   2400 (  408, 1621,  371),  50.8 :     +1,    3,   64.8

4) Komodo Dragon 2.5.1 - 2048 2999  :   9600 (+1542,=6495,-1563),  49.9 %

   vs.                              :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Komodo Dragon 2.5.1 - 1024       :   2400 (  371, 1634,  395),  49.5 :     -2,    3,   22.0
   Komodo Dragon 2.5.1 - 128        :   2400 (  370, 1623,  407),  49.2 :     -2,    3,   27.0
   Komodo Dragon 2.5.1 - 256        :   2400 (  416, 1613,  371),  50.9 :     -0,    3,   44.7
   Komodo Dragon 2.5.1 - 512        :   2400 (  385, 1625,  390),  49.9 :     +1,    3,   59.6

5) Komodo Dragon 2.5.1 - 512  2999  :   9600 (+1527,=6504,-1569),  49.8 %

   vs.                              :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Komodo Dragon 2.5.1 - 1024       :   2400 (  395, 1613,  392),  50.1 :     -3,    3,   15.3
   Komodo Dragon 2.5.1 - 128        :   2400 (  371, 1645,  384),  49.7 :     -2,    3,   19.1
   Komodo Dragon 2.5.1 - 256        :   2400 (  371, 1621,  408),  49.2 :     -1,    3,   35.2
   Komodo Dragon 2.5.1 - 2048       :   2400 (  390, 1625,  385),  50.1 :     -1,    3,   40.4


Games        : 24.000 (finished)

White Wins   :  6.637 (27.7 %)
Black Wins   :  1.047  (4.4 %)
Draws        : 16.316 (68.0 %)

White Score  : 61.6 %
Black Score  : 38.4 %
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Rebel
Posts: 6946
Joined: Thu Aug 18, 2011 12:04 pm

Re: Hash experiment - Komodo Dragon 2.5.1

Post by Rebel »

Not surprising at this time control.

Try a 16 Mb run.
90% of coding is debugging, the other 10% is writing bugs.
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Jouni
Posts: 3229
Joined: Wed Mar 08, 2006 8:15 pm

Re: Hash experiment - Komodo Dragon 2.5.1

Post by Jouni »

Stockfish framework uses Hash=64 for LTC. It's tested to be enough. And NNUE has slower speed - may be less RAM needed?
Jouni
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fastgm
Posts: 818
Joined: Mon Aug 19, 2013 6:57 pm

Re: Hash experiment - Komodo Dragon 2.5.1

Post by fastgm »

16 MB Hash included:

Code: Select all

Playing conditions:

CPU:           Intel Dual Xeon E5-2673v4 (40 Core)
OS:            Windows 10 64-Bit
Tool:          Cutechess-Cli
Komodo Dragon: 1 Core, 64 Bit, default settings
Hash-Tables:   16, 128, 256, 512, 1024 and 2048 MB
Time control:  2 minutes + 1 second
Tablebases:    Adjudication, 6 pieces
Openings:      TCEC_9-20.pgn (600 positions, changing colors)
Ponder:        Off
Learning:      Off

   # Engine                 :    Elo  Error   Games   Points    (%)       W      D      L     D(%)   CFS
 --------------------------------------------------------------------------------------------------------
   1 Dragon 2.5.1 - 128     :   3002    3     12000   6037.5   50.31    1929   8217   1854   68.47    53
   2 Dragon 2.5.1 - 1024    :   3002    2     12000   6035.0   50.29    1953   8164   1883   68.03    76
   3 Dragon 2.5.1 - 256     :   3000    3     12000   6007.0   50.06    1936   8142   1922   67.85    57
   4 Dragon 2.5.1 - 2048    :   3000    3     12000   5999.0   49.99    1942   8114   1944   67.62    51
   5 Dragon 2.5.1 - 512     :   3000    3     12000   5997.5   49.98    1936   8123   1941   67.69    95
   6 Dragon 2.5.1 - 16      :   2996    3     12000   5924.0   49.37    1860   8128   2012   67.73   ---

White advantage = 83.05 +/- 1.10
Draw rate (equal opponents) = 75.44 % +/- 0.28


Head to head statistics:

1) Dragon 2.5.1 - 128  3002 :  12000 (+1929,=8217,-1854),  50.3 %

   vs.                       :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Dragon 2.5.1 - 1024       :   2400 (  360, 1660,  380),  49.6 :     +0,    2,   52.6
   Dragon 2.5.1 - 256        :   2400 (  368, 1665,  367),  50.0 :     +2,    2,   76.4
   Dragon 2.5.1 - 2048       :   2400 (  407, 1623,  370),  50.8 :     +2,    2,   80.3
   Dragon 2.5.1 - 512        :   2400 (  384, 1645,  371),  50.3 :     +2,    2,   84.6
   Dragon 2.5.1 - 16         :   2400 (  410, 1624,  366),  50.9 :     +6,    2,   99.1

2) Dragon 2.5.1 - 1024 3002 :  12000 (+1953,=8164,-1883),  50.3 %

   vs.                       :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Dragon 2.5.1 - 128        :   2400 (  380, 1660,  360),  50.4 :     -0,    2,   47.4
   Dragon 2.5.1 - 256        :   2400 (  392, 1617,  391),  50.0 :     +1,    2,   76.3
   Dragon 2.5.1 - 2048       :   2400 (  395, 1634,  371),  50.5 :     +2,    2,   78.8
   Dragon 2.5.1 - 512        :   2400 (  392, 1613,  395),  49.9 :     +2,    2,   83.5
   Dragon 2.5.1 - 16         :   2400 (  394, 1640,  366),  50.6 :     +6,    2,   99.8

3) Dragon 2.5.1 - 256  3000 :  12000 (+1936,=8142,-1922),  50.1 %

   vs.                       :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Dragon 2.5.1 - 128        :   2400 (  367, 1665,  368),  50.0 :     -2,    2,   23.6
   Dragon 2.5.1 - 1024       :   2400 (  391, 1617,  392),  50.0 :     -1,    2,   23.7
   Dragon 2.5.1 - 2048       :   2400 (  371, 1613,  416),  49.1 :     +0,    2,   56.8
   Dragon 2.5.1 - 512        :   2400 (  408, 1621,  371),  50.8 :     +0,    2,   58.4
   Dragon 2.5.1 - 16         :   2400 (  399, 1626,  375),  50.5 :     +4,    3,   95.5

4) Dragon 2.5.1 - 2048 3000 :  12000 (+1942,=8114,-1944),  50.0 %

   vs.                       :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Dragon 2.5.1 - 128        :   2400 (  370, 1623,  407),  49.2 :     -2,    2,   19.7
   Dragon 2.5.1 - 1024       :   2400 (  371, 1634,  395),  49.5 :     -2,    2,   21.2
   Dragon 2.5.1 - 256        :   2400 (  416, 1613,  371),  50.9 :     -0,    2,   43.2
   Dragon 2.5.1 - 512        :   2400 (  385, 1625,  390),  49.9 :     +0,    2,   51.4
   Dragon 2.5.1 - 16         :   2400 (  400, 1619,  381),  50.4 :     +4,    3,   93.9

5) Dragon 2.5.1 - 512  3000 :  12000 (+1936,=8123,-1941),  50.0 %

   vs.                       :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Dragon 2.5.1 - 128        :   2400 (  371, 1645,  384),  49.7 :     -2,    2,   15.4
   Dragon 2.5.1 - 1024       :   2400 (  395, 1613,  392),  50.1 :     -2,    2,   16.5
   Dragon 2.5.1 - 256        :   2400 (  371, 1621,  408),  49.2 :     -0,    2,   41.6
   Dragon 2.5.1 - 2048       :   2400 (  390, 1625,  385),  50.1 :     -0,    2,   48.6
   Dragon 2.5.1 - 16         :   2400 (  409, 1619,  372),  50.8 :     +4,    2,   95.3

6) Dragon 2.5.1 - 16   2996 :  12000 (+1860,=8128,-2012),  49.4 %

   vs.                       :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Dragon 2.5.1 - 128        :   2400 (  366, 1624,  410),  49.1 :     -6,    2,    0.9
   Dragon 2.5.1 - 1024       :   2400 (  366, 1640,  394),  49.4 :     -6,    2,    0.2
   Dragon 2.5.1 - 256        :   2400 (  375, 1626,  399),  49.5 :     -4,    3,    4.5
   Dragon 2.5.1 - 2048       :   2400 (  381, 1619,  400),  49.6 :     -4,    3,    6.1
   Dragon 2.5.1 - 512        :   2400 (  372, 1619,  409),  49.2 :     -4,    2,    4.7


Games        : 36.000 (finished)

White Wins   :  9.965 (27.7 %)
Black Wins   :  1.591  (4.4 %)
Draws        : 24.444 (67.9 %)

White Score  : 61.6 %
Black Score  : 38.4 %
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mehmet123
Posts: 669
Joined: Sun Jan 26, 2020 10:38 pm
Location: Turkey
Full name: Mehmet Karaman

Re: Hash experiment - Komodo Dragon 2.5.1

Post by mehmet123 »

According to this test we can say that lower hash will cause a loss of elo, while more hash does not make any difference in elo.
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dkappe
Posts: 1620
Joined: Tue Aug 21, 2018 7:52 pm
Full name: Dietrich Kappe

Re: Hash experiment - Komodo Dragon 2.5.1

Post by dkappe »

fastgm wrote: ↑Tue Nov 23, 2021 11:33 pm Hash experiment with Komodo Dragon 2.5.1:

I would have expected a bigger difference.
But at this time control 2' + 1" it seems to be relatively irrelevant what hash size between 128 MB and 2048 MB is used.

Code: Select all

Playing conditions:

CPU:           Intel Dual Xeon E5-2673v4 (40 Core)
OS:            Windows 10 64-Bit
Tool:          Cutechess-Cli
Komodo Dragon: 1 Core, 64 Bit, default settings
Hash-Tables:   128, 256, 512, 1024 and 2048 MB
Time control:  2 minutes + 1 second
Tablebases:    Adjudication, 6 pieces
Openings:      TCEC_9-20.pgn (600 positions, changing colors)
Ponder:        Off
Learning:      Off

   # Engine                        :    Elo  Error   Games   Points    (%)       W      D      L     D(%)   CFS
 ---------------------------------------------------------------------------------------------------------------
   1 Komodo Dragon 2.5.1 - 1024    :   3001      3    9600   4821.0   50.22    1559   6524   1517   67.96    55
   2 Komodo Dragon 2.5.1 - 128     :   3001      3    9600   4815.5   50.16    1519   6593   1488   68.68    69
   3 Komodo Dragon 2.5.1 - 256     :   3000      3    9600   4795.0   49.95    1537   6516   1547   67.88    55
   4 Komodo Dragon 2.5.1 - 2048    :   2999      3    9600   4789.5   49.89    1542   6495   1563   67.66    60
   5 Komodo Dragon 2.5.1 - 512     :   2999      3    9600   4779.0   49.78    1527   6504   1569   67.75   ---

White advantage = 83.16 +/- 1.29
Draw rate (equal opponents) = 75.58 % +/- 0.34

Head to head statistics:

1) Komodo Dragon 2.5.1 - 1024 3001  :   9600 (+1559,=6524,-1517),  50.2 %

   vs.                              :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Komodo Dragon 2.5.1 - 128        :   2400 (  380, 1660,  360),  50.4 :     +0,    3,   55.4
   Komodo Dragon 2.5.1 - 256        :   2400 (  392, 1617,  391),  50.0 :     +2,    3,   73.9
   Komodo Dragon 2.5.1 - 2048       :   2400 (  395, 1634,  371),  50.5 :     +2,    3,   78.0
   Komodo Dragon 2.5.1 - 512        :   2400 (  392, 1613,  395),  49.9 :     +3,    3,   84.7

2) Komodo Dragon 2.5.1 - 128  3001  :   9600 (+1519,=6593,-1488),  50.2 %

   vs.                              :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Komodo Dragon 2.5.1 - 1024       :   2400 (  360, 1660,  380),  49.6 :     -0,    3,   44.6
   Komodo Dragon 2.5.1 - 256        :   2400 (  368, 1665,  367),  50.0 :     +1,    3,   69.0
   Komodo Dragon 2.5.1 - 2048       :   2400 (  407, 1623,  370),  50.8 :     +2,    3,   73.0
   Komodo Dragon 2.5.1 - 512        :   2400 (  384, 1645,  371),  50.3 :     +2,    3,   80.9

3) Komodo Dragon 2.5.1 - 256  3000  :   9600 (+1537,=6516,-1547),  49.9 %

   vs.                              :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Komodo Dragon 2.5.1 - 1024       :   2400 (  391, 1617,  392),  50.0 :     -2,    3,   26.1
   Komodo Dragon 2.5.1 - 128        :   2400 (  367, 1665,  368),  50.0 :     -1,    3,   31.0
   Komodo Dragon 2.5.1 - 2048       :   2400 (  371, 1613,  416),  49.1 :     +0,    3,   55.3
   Komodo Dragon 2.5.1 - 512        :   2400 (  408, 1621,  371),  50.8 :     +1,    3,   64.8

4) Komodo Dragon 2.5.1 - 2048 2999  :   9600 (+1542,=6495,-1563),  49.9 %

   vs.                              :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Komodo Dragon 2.5.1 - 1024       :   2400 (  371, 1634,  395),  49.5 :     -2,    3,   22.0
   Komodo Dragon 2.5.1 - 128        :   2400 (  370, 1623,  407),  49.2 :     -2,    3,   27.0
   Komodo Dragon 2.5.1 - 256        :   2400 (  416, 1613,  371),  50.9 :     -0,    3,   44.7
   Komodo Dragon 2.5.1 - 512        :   2400 (  385, 1625,  390),  49.9 :     +1,    3,   59.6

5) Komodo Dragon 2.5.1 - 512  2999  :   9600 (+1527,=6504,-1569),  49.8 %

   vs.                              :  games (    +,    =,    -),   (%) :   Diff,   SD, CFS (%)
   Komodo Dragon 2.5.1 - 1024       :   2400 (  395, 1613,  392),  50.1 :     -3,    3,   15.3
   Komodo Dragon 2.5.1 - 128        :   2400 (  371, 1645,  384),  49.7 :     -2,    3,   19.1
   Komodo Dragon 2.5.1 - 256        :   2400 (  371, 1621,  408),  49.2 :     -1,    3,   35.2
   Komodo Dragon 2.5.1 - 2048       :   2400 (  390, 1625,  385),  50.1 :     -1,    3,   40.4


Games        : 24.000 (finished)

White Wins   :  6.637 (27.7 %)
Black Wins   :  1.047  (4.4 %)
Draws        : 16.316 (68.0 %)

White Score  : 61.6 %
Black Score  : 38.4 %
What parameters should you vary to have this make more sense?

1. Move time (or depth). The bigger the tree, the more helpful the hash.
2. Threads. The hash is used to share search info between threads.

I don’t know how many positions fit into 16MB of hash, but it’s lots.
Fat Titz by Stockfish, the engine with the bodaciously big net. Remember: size matters. If you want to learn more about this engine just google for "Fat Titz".
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fastgm
Posts: 818
Joined: Mon Aug 19, 2013 6:57 pm

Hash experiment - Komodo Dragon 2.5.1

Post by fastgm »

Time control 4 minutes + 2 seconds

Code: Select all

Playing conditions:

CPU:           Intel Dual Xeon E5-2673v4 (40 Core)
OS:            Windows 10 64-Bit
Tool:          Cutechess-Cli
Komodo Dragon: 1 Core, 64 Bit, default settings
Hash-Tables:   16, 128, 256, 512, 1024 and 2048 MB
Time control:  4 minutes + 2 seconds
Tablebases:    Adjudication, 6 pieces
Openings:      TCEC_9-20.pgn (600 positions, changing colors)
Ponder:        Off
Learning:      Off


   # Engine                 :    Elo  Error   Games   Points    (%)       W      D      L     D(%)   CFS
 --------------------------------------------------------------------------------------------------------
   1 Dragon 2.5.1 - 2048    :   3005      4    6000   3050.0   50.83     912   4276    812   71.27    70
   2 Dragon 2.5.1 - 1024    :   3004      4    6000   3035.0   50.58     933   4204    863   70.07    82
   3 Dragon 2.5.1 - 256     :   3001      4    6000   3007.5   50.13     865   4285    850   71.42    57
   4 Dragon 2.5.1 - 512     :   3000      4    6000   3002.5   50.04     870   4265    865   71.08    57
   5 Dragon 2.5.1 - 128     :   3000      4    6000   2997.0   49.95     884   4226    890   70.43   100
   6 Dragon 2.5.1 - 16      :   2991      4    6000   2908.0   48.47     799   4218    983   70.30   ---

White advantage = 78.93 +/- 1.39
Draw rate (equal opponents) = 78.80 % +/- 0.38


Head to head statistics:

1) Dragon 2.5.1 - 2048 3005 :   6000 (+912,=4276,-812),  50.8 %

   vs.                       :  games (   +,    =,   -),   (%) :   Diff,   SD, CFS (%)
   Dragon 2.5.1 - 1024       :   1200 ( 181,  858, 161),  50.8 :     +2,    3,   69.6
   Dragon 2.5.1 - 256        :   1200 ( 170,  871, 159),  50.5 :     +4,    3,   92.0
   Dragon 2.5.1 - 512        :   1200 ( 180,  865, 155),  51.0 :     +5,    3,   94.2
   Dragon 2.5.1 - 128        :   1200 ( 175,  839, 186),  49.5 :     +5,    3,   96.1
   Dragon 2.5.1 - 16         :   1200 ( 206,  843, 151),  52.3 :    +15,    3,  100.0

2) Dragon 2.5.1 - 1024 3004 :   6000 (+933,=4204,-863),  50.6 %

   vs.                       :  games (   +,    =,   -),   (%) :   Diff,   SD, CFS (%)
   Dragon 2.5.1 - 2048       :   1200 ( 161,  858, 181),  49.2 :     -2,    3,   30.4
   Dragon 2.5.1 - 256        :   1200 ( 190,  857, 153),  51.5 :     +3,    3,   81.5
   Dragon 2.5.1 - 512        :   1200 ( 181,  844, 175),  50.3 :     +3,    3,   86.0
   Dragon 2.5.1 - 128        :   1200 ( 197,  818, 185),  50.5 :     +4,    3,   89.0
   Dragon 2.5.1 - 16         :   1200 ( 204,  827, 169),  51.5 :    +13,    3,  100.0

3) Dragon 2.5.1 - 256  3001 :   6000 (+865,=4285,-850),  50.1 %

   vs.                       :  games (   +,    =,   -),   (%) :   Diff,   SD, CFS (%)
   Dragon 2.5.1 - 2048       :   1200 ( 159,  871, 170),  49.5 :     -4,    3,    8.0
   Dragon 2.5.1 - 1024       :   1200 ( 153,  857, 190),  48.5 :     -3,    3,   18.5
   Dragon 2.5.1 - 512        :   1200 ( 175,  861, 164),  50.5 :     +1,    3,   56.6
   Dragon 2.5.1 - 128        :   1200 ( 178,  854, 168),  50.4 :     +1,    3,   63.9
   Dragon 2.5.1 - 16         :   1200 ( 200,  842, 158),  51.8 :    +10,    3,  100.0

4) Dragon 2.5.1 - 512  3000 :   6000 (+870,=4265,-865),  50.0 %

   vs.                       :  games (   +,    =,   -),   (%) :   Diff,   SD, CFS (%)
   Dragon 2.5.1 - 2048       :   1200 ( 155,  865, 180),  49.0 :     -5,    3,    5.8
   Dragon 2.5.1 - 1024       :   1200 ( 175,  844, 181),  49.8 :     -3,    3,   14.0
   Dragon 2.5.1 - 256        :   1200 ( 164,  861, 175),  49.5 :     -1,    3,   43.4
   Dragon 2.5.1 - 128        :   1200 ( 184,  852, 164),  50.8 :     +1,    3,   57.2
   Dragon 2.5.1 - 16         :   1200 ( 192,  843, 165),  51.1 :    +10,    3,   99.9

5) Dragon 2.5.1 - 128  3000 :   6000 (+884,=4226,-890),  50.0 %

   vs.                       :  games (   +,    =,   -),   (%) :   Diff,   SD, CFS (%)
   Dragon 2.5.1 - 2048       :   1200 ( 186,  839, 175),  50.5 :     -5,    3,    3.9
   Dragon 2.5.1 - 1024       :   1200 ( 185,  818, 197),  49.5 :     -4,    3,   11.0
   Dragon 2.5.1 - 256        :   1200 ( 168,  854, 178),  49.6 :     -1,    3,   36.1
   Dragon 2.5.1 - 512        :   1200 ( 164,  852, 184),  49.2 :     -1,    3,   42.8
   Dragon 2.5.1 - 16         :   1200 ( 181,  863, 156),  51.0 :     +9,    3,   99.9

6) Dragon 2.5.1 - 16   2991 :   6000 (+799,=4218,-983),  48.5 %

   vs.                       :  games (   +,    =,   -),   (%) :   Diff,   SD, CFS (%)
   Dragon 2.5.1 - 2048       :   1200 ( 151,  843, 206),  47.7 :    -15,    3,    0.0
   Dragon 2.5.1 - 1024       :   1200 ( 169,  827, 204),  48.5 :    -13,    3,    0.0
   Dragon 2.5.1 - 256        :   1200 ( 158,  842, 200),  48.3 :    -10,    3,    0.0
   Dragon 2.5.1 - 512        :   1200 ( 165,  843, 192),  48.9 :    -10,    3,    0.1
   Dragon 2.5.1 - 128        :   1200 ( 156,  863, 181),  49.0 :     -9,    3,    0.1


Games        : 18.000 (finished)

White Wins   :  4.624 (25.7 %)
Black Wins   :    639  (3.5 %)
Draws        : 12.737 (70.8 %)

White Score  : 61.1 %
Black Score  : 38.9 %
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User avatar
ThomasMiller
Posts: 25
Joined: Mon Nov 02, 2020 5:14 pm
Full name: Thomas J. Miller

Re: Hash experiment - Komodo Dragon 2.5.1

Post by ThomasMiller »

Interesting experiment. What's Komodo average speed with 1 thread on your 2673-v4? Does anyone know the size of one hash entry in Komodo?
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Jouni
Posts: 3229
Joined: Wed Mar 08, 2006 8:15 pm

Re: Hash experiment - Komodo Dragon 2.5.1

Post by Jouni »

Where is 64 MB??
Jouni
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Cornfed
Posts: 511
Joined: Sun Apr 26, 2020 11:40 pm
Full name: Brian D. Smith

Re: Hash experiment - Komodo Dragon 2.5.1

Post by Cornfed »

The diminishing returns seem to indicate essentially no gain at such TC.
I wonder though about slower TC or for analysis...say 5 min on a position, if there is an inflection point at which 'gain' with more hash is essentially of no real value?

The last Komodo I have is 13.3 and in Chessbase it defaults to 2764. Dragon 2.5.1 might be different.
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