Erik

Would it be possible to provide some snippet where it can be reproduced (even if it does not always happen)? In what file is this `assert_eq` failing?

Thanks for the smaller example. I just had a quick look and in your link on spawn modes it says > Note that safely forking a multithreaded process is problematic....

I don't know if that is possible. However, it seems as long as you do not run `builder.build()` in the parent process the threadpool remains uninitialized and you fork without...

Thanks for the suggestion. Could you please elaborate a bit more on where/how you think this might be useful? Maybe I am missing something obvious.

Hi! There is unfortunately no built-in way of storing metadata or different IDs inside granne. Both of your suggested approaches seem feasible. For the second one, if you leave the...