Zaida Zhou

 ## Introduction 超级视客营再度启航，展现编程实力，共塑开源未来！ 第二期超级视客营提供 10 个课题方向、150+ 不同难度课题任务，包括但不限于基础架构、预训练、目标检测、AIGC 等多个领域。活动算力由北京超级云计算中心提供支持，为大家的开发保驾护航。 The OpenMMLab CodeCamp has BEGUN! Harness programming skills and shaping the future of OpenMMLab. Oriented to developers worldwide, released 150+ tasks...

Thanks for your contribution and we appreciate it a lot. The following instructions would make your pull request more healthy and more easily get feedback. If you do not understand...

The ProcessGroupNCCL is not being destructed

4

### 🐛 Describe the bug I used PyTorch's `multiprocessing` to launch a multi-GPU task like the below snippests: ```python import torch.multiprocessing as mp def worker(): # init global nccl processgroup...