Stockfish maximum hash size

gtmarks's Avatar

gtmarks

13 Feb, 2017 03:10 AM

The recent development builds of Stockfish for Windows do not seem to have been compiled to allow Hash sizes above 16 GB (e.g. such sizes as TCEC uses). For instance:

$wine stockfish_17021101_x64_bmi2.exe

Stockfish 110217 64 BMI2 by T. Romstad, M. Costalba, J. Kiiski, G. Linscott
uci
id name Stockfish 110217 64 BMI2
id author T. Romstad, M. Costalba, J. Kiiski, G. Linscott

option name Debug Log File type string default
option name Contempt type spin default 0 min -100 max 100
option name Threads type spin default 1 min 1 max 128
option name Hash type spin default 16 min 1 max 1048576
option name Clear Hash type button
option name Ponder type check default false
option name MultiPV type spin default 1 min 1 max 500
option name Skill Level type spin default 20 min 0 max 20
option name Move Overhead type spin default 30 min 0 max 5000
option name Minimum Thinking Time type spin default 20 min 0 max 5000
option name Slow Mover type spin default 89 min 10 max 1000
option name nodestime type spin default 0 min 0 max 10000
option name UCI_Chess960 type check default false
option name SyzygyPath type string default <empty>
option name SyzygyProbeDepth type spin default 1 min 1 max 100
option name Syzygy50MoveRule type check default true
option name SyzygyProbeLimit type spin default 6 min 0 max 6
uciok
quit

$wine stockfish_17021101_x64_bmi2.exe

Stockfish 110217 64 BMI2 by T. Romstad, M. Costalba, J. Kiiski, G. Linscott
setoption name Hash value 32768
Failed to allocate 32768MB for transposition table.

That's well below the claimed maximum of 1048576. So far as I can tell, the Linux builds don't have this problem.

  1. 1 Posted by Amit on 09 Jun, 2018 03:28 PM

    Amit's Avatar

    I want to change the default values of Hash Type to 1024MB and Threads value to 4 and Ponder type value to true. So I run the following commands but didn't save I.e.
    setoption name Hash value 1024
    setoption name Threads value 4
    setoption name Ponder value true

    but after this I again run the uci command, the changes didn't happen. Please advice

  2. 2 Posted by Amit on 11 Jun, 2018 04:43 PM

    Amit's Avatar

    Sir please do revert..

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