Hash value

[exekutive]

README in this repo states:

keep it as some power of 2. E.g., if you're fine using 2 GB of RAM, set Hash to 2048 (11th power of 2).

However, SF docs say:

The Hash can be any value, not just powers of two.
(https://official-stockfish.github.io/docs/stockfish-wiki/Stockfish-FAQ.html#hash)

Also,

It is recommended to set Hash after setting Threads.
(https://official-stockfish.github.io/docs/stockfish-wiki/UCI-&-Commands.html)

[exekutive]

 raise ValueError(f"{value} is over {name}'s maximum value of {maximum}")
ValueError: 24000 is over Hash's maximum value of 2048

Maximum value in this package is artificially set to 2,048. The Stockfish engine accepts values up to 33,554,432 MB (33 TB). Allocating more hash memory significantly improves search performance, as evidenced by Stockfish testing (https://official-stockfish.github.io/docs/stockfish-wiki/Useful-data.html#elo-cost-of-small-hash).

"For deep analysis set it to as much as you can afford given the available memory in your system"

[johndoknjas]

@exekutive Ty for the feedback! Your suggestions should be addressed soon.

[johndoknjas]

@exekutive Is your system 64 bit btw? In the code we set the maximum MBs to 2^25 (33 TB) if 64 bit, otherwise 2^11 (assumes 32 bit).

[exekutive]

yes

[johndoknjas]

@exekutive I see. Would u be able to let me know what the following prints? Maybe the way we're checking for 64-bit is wrong.

import platform
print(platform.machine())

[exekutive]

arm64

[johndoknjas]

I have the same but unfortunately can't reproduce on my end.