Thank you very much! It seems that these solutions you mentioned above are not, I have tried one by one, but have not been able to solve the problem. It works properly under PPO, and cuda should have no problems with these configurations. The document says, "despite best efforts, DDPPO does not use fault tolerant and elastic features of WorkerSet, because of the way Torch DDP is set up. "But it is not known what caused it.