Jorgen Skancke <jor...@nt.ntnu.no> added the comment: I recently ran into this problem when I tried to multiprocess jobs with large objects (3-4 GB). I have plenty of memory for this, but multiprocessing hangs without error, presumably because pickle hangs without error when multiprocessing tries to pickle the object. I can't offer a solution, but I can verify that the limitation in pickle is affecting Python usage.
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