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fix(multiprocessing): Use list instead of key-view #1609

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eddiebergman merged 1 commit into from
Nov 15, 2022
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fix(multiprocessing): Use list instead of key-view #1609

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11 changes: 10 additions & 1 deletion autosklearn/util/parallel.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,16 @@


def preload_modules(context: multiprocessing.context.BaseContext) -> None:
all_loaded_modules = sys.modules.keys()
"""Attempt to preload modules when using forkserver"""
# NOTE: preloading and docstring
#
# This is just a best guess at why this is used, coming from this blogpost
# https://bnikolic.co.uk/blog/python/parallelism/2019/11/13/python-forkserver-preload.html
# Ideally we should identify subprocesses that get run with this and try limit the
# necessity to use all of these modules
#
# @eddiebergman
all_loaded_modules = list(sys.modules.keys())
preload = [
loaded_module
for loaded_module in all_loaded_modules
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