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NaN error when running PAIRED and REPAIRED on BipedalWalker env #2

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wenjunli-0 opened this issue Aug 14, 2022 · 0 comments
Open

NaN error when running PAIRED and REPAIRED on BipedalWalker env #2

wenjunli-0 opened this issue Aug 14, 2022 · 0 comments

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@wenjunli-0
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When running PAIRED and REPAIRED on BipedalWalker env. After a few thousands of updates, there will be an “nan” error in self.actor_critic.evaluate_actions() method (check this line

dcd/algos/ppo.py

Line 91 in 0411f1f

values, action_log_probs, dist_entropy, _ = self.actor_critic.evaluate_actions(
). The error happens when the Generator is being updated using ppo.

I assume this is caused by some gradient explosion or something. Could you guys check this bug?
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