Fathom memory usage

[AlvaroBegue]

Hi,

I am integrating syzygy tablebases into my engine using Jon Dart's Fathom, which seems to work great. Big fan!

However, I don't have any control over how much memory it uses. Is there a cache size I can somehow configure? If not, how much memory can I expect it to use?

Thanks!
Álvaro.

[AlvaroBegue]

Looking at `top' it looks like, after playing a few hundred games, my process is using around 600 MB of additional memory because of access to bitbases.

Do you guys think I should work on a low-memory option, or is this acceptable? I am curious what other people do in their engines.

[cdani]

Looking at `top' it looks like, after playing a few hundred games, my process is using around 600 MB of additional memory because of access to bitbases.

Do you guys think I should work on a low-memory option, or is this acceptable? I am curious what other people do in their engines.

I really had done nothing special in the versions that had syz enabled. And I think also most other people had done nothing.

[kbhearn]

Syzygy implementations just memory map the files and let the OS handle the memory so it'll use whatever's available to it