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Rearrange ray initialization to avoid RuntimeWarning #515

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merged 7 commits into from Apr 29, 2024
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Rearrange ray initialization to avoid RuntimeWarning resulting from initialization of ray after jax has been imported, as described in #513.

@bwohlberg bwohlberg added examples Pertaining to SCICO examples tests Pertaining to SCICO tests labels Apr 25, 2024
@bwohlberg bwohlberg linked an issue Apr 25, 2024 that may be closed by this pull request
conftest.py Outdated
have_ray = False
else:
have_ray = True
ray.init(num_cpus=1) # required to be here: see ray-project/ray#44087
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Why num_cpus=1? I don't see anything about that at ray-project/ray#44087

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It's the location of the ray.init call that is "required to be here". The constraint on the number of cpus is so that it will play nicely with tests run in parallel.

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Updated comment in an attempt to clarify this.

@bwohlberg bwohlberg merged commit 738b4a0 into main Apr 29, 2024
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@bwohlberg bwohlberg deleted the brendt/ray branch April 29, 2024 23:05
@bwohlberg bwohlberg restored the brendt/ray branch April 30, 2024 00:41
@bwohlberg bwohlberg deleted the brendt/ray branch April 30, 2024 00:44
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RuntimeWarning when using ray
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