It seems to be a recurring question (related #1576 #1553 #1582 and maybe more). And I know you guys will replace the implementation of it in a future version of pyemma, but I just want to point out that the issue seems to be related to the combination of threadpool_limits and get_context("spawn").Pool---for some weird reason, they don't play nice with the serialization of MaximumLikelihoodMSM.
Either removing threadpool_limits or using get_context().Pool can resolve the hanging.
It seems to be a recurring question (related #1576 #1553 #1582 and maybe more). And I know you guys will replace the implementation of it in a future version of pyemma, but I just want to point out that the issue seems to be related to the combination of
threadpool_limits
andget_context("spawn").Pool
---for some weird reason, they don't play nice with the serialization ofMaximumLikelihoodMSM
.Either removing
threadpool_limits
or usingget_context().Pool
can resolve the hanging.ubuntu 20.04 python: 3.10 pyemma: 2.5.12 threadpoolctl: 3.1.0