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[rllib] Give error if sample_async is used with pytorch for A3C #5000

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Jun 26, 2019
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[rllib] Give error if sample_async is used with pytorch for A3C #5000

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9fe64d2
give error if sample_async is used with pytorch
pcmoritz Jun 19, 2019
4f6e1e8
update
pcmoritz Jun 19, 2019
37ff8f7
Update a3c.py
ericl Jun 25, 2019
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4 changes: 4 additions & 0 deletions python/ray/rllib/agents/a3c/a3c.py
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Expand Up @@ -48,6 +48,10 @@ def get_policy_class(config):
def validate_config(config):
if config["entropy_coeff"] < 0:
raise DeprecationWarning("entropy_coeff must be >= 0")
if config["sample_async"] and config["use_pytorch"]:
raise ValueError(
"The sample_async option is not supported with use_pytorch: "
"Multithreading can be lead to crashes if used with pytorch.")
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Nice. Shall we also turn it off by default?

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Up to you, is it beneficial if used with TensorFlow?



def make_async_optimizer(workers, config):
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