RuntimeError: Cannot re-initialize CUDA in forked subprocess. To use CUDA with multiprocessing, you must use the 'spawn' start method

[TonyKutunio]

Is there anyone knows how to set this up please?

[alter-sachin]

same issue

[SandUhrGucker]

in /src/multiprocessing.py in subroutine parallel_greenscreen:

switch line
manager = multiprocessing.Manager()

to
multiprocessing.set_start_method('spawn')
manager = multiprocessing.Manager()

[jinzishuai]

Thank you @SandUhrGucker your proposed fix works for me.