马春杰杰报错：
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File "/home/ubuntu/bigdisk/part2/Swin-Transformer-Object-Detection/mmdet/models/roi_heads/bbox_heads/convfc_bbox_head.py", line 139, in forward x = conv(x) File "/home/ubuntu/anaconda3/envs/swin/lib/python3.7/site-packages/torch/nn/modules/module.py", line 532, in __call__ result = self.forward(*input, **kwargs) File "/home/ubuntu/anaconda3/envs/swin/lib/python3.7/site-packages/mmcv/cnn/bricks/conv_module.py", line 203, in forward x = self.norm(x) File "/home/ubuntu/anaconda3/envs/swin/lib/python3.7/site-packages/torch/nn/modules/module.py", line 532, in __call__ result = self.forward(*input, **kwargs) File "/home/ubuntu/anaconda3/envs/swin/lib/python3.7/site-packages/torch/nn/modules/batchnorm.py", line 458, in forward world_size = torch.distributed.get_world_size(process_group) File "/home/ubuntu/anaconda3/envs/swin/lib/python3.7/site-packages/torch/distributed/distributed_c10d.py", line 586, in get_world_size return _get_group_size(group) File "/home/ubuntu/anaconda3/envs/swin/lib/python3.7/site-packages/torch/distributed/distributed_c10d.py", line 202, in _get_group_size _check_default_pg() File "/home/ubuntu/anaconda3/envs/swin/lib/python3.7/site-packages/torch/distributed/distributed_c10d.py", line 193, in _check_default_pg "Default process group is not initialized" AssertionError: Default process group is not initialized |
解决方法：
把配置文件中的SyncBN全部改为BN即可。
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