Use spawn start method in multiprocessing programs
#11391
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XuehaiPan
commented
May 2, 2024
| process_array_.append( | ||
| Process( | ||
| multiprocessing_context.Process( |
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I add a commit to access the multiprocessing context explicitly. The context instance is set to spawn above separating from the global default context.
import multiprocessing as mp
mp.set_start_method("spawn") # set global default context
# Use the global default context
process = mp.Process(...)
pipe = mp.Pipe(...)
lock = mp.Lock(...)vs.
import multiprocessing as mp
ctx = mp.get_context("spawn")
# Use the spawn context explicitly
process = ctx.Process(...)
pipe = ctx.Pipe(...)
lock = ctx.Lock(...)If this change is not desired or makes the code too complex, I can remove the last commit in the PR. cc @cclauss
cclauss
approved these changes
May 2, 2024
|
AWESOME!! |
sedatguzelsemme
pushed a commit
to sedatguzelsemme/Python
that referenced
this pull request
Sep 15, 2024
…1391) * Use `spawn` start method in multiprocessing programs * Set `spawn` start method in doctest * Use `with` statement for locks * Pass multiprocessing context explicitly
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Describe your change:
Set the start method to
spawnbefore any multiprocess context is read.Resolves: #769 (comment)
cc @cclauss
Checklist: