Jensen Gao

**SyncBatchNorm** only used for multi-GPU parallel training, if you only have one GPU to train, you can **change "torch.nn.SyncBatchNorm" to "torch.nn.BatchNorm2d"**, so you can solve this problem.

> Can this model export to onnx format? Did you transfer successfully?

> > Hello @williamhyin good point. Currently, I don't have a bandwidth for doing this, but I will keep this in my backlog. > > Hi , > > Thanks...

I can't reproduce it either, I don't know what the problem is, still in experiment