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question #63

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yinshuangshuang621671 opened this issue Jun 27, 2023 · 1 comment

yinshuangshuang621671 commented Jun 27, 2023

May I ask a question: Why is the with torch.no_grad(): used in ppo.select_action ??

GersiD commented Dec 17, 2024

If you don't use that then torch will accumulate gradients during the action selection process which can throw off the optimization step.

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