How to use multi-threading for data processing

[yangyang117]

When performing Boolean operations on STL files, if the file size is large, it takes a long time. How do I enable multithreading?

I tried :
import pymeshlab

get the maximum number of threads available

max_threads = pymeshlab.max_threads()

set the maximum number of threads to use

pymeshlab.set_max_threads(4)

or

ms.apply_filter('screened_poisson', threads=8)

but its not working.

[Alessandro Muntoni]

Just some filters use multi threading for processing, and when it is available, it is enabled by default.
Mesh booleans do not support multi threading.

[yangyang117]

ok, thank you