Miss SyncBatchNorm in Pixel Propagation Module

[Yingdong Hu]

PixPro/contrast/models/PixPro.py

Line 141 in e390d6b

 self.value_transform = MLP2d(in_dim=256, inner_dim=256, out_dim=256) 

If I set pixpro_transform_layer=2, it will use Batchnorm between 2 linear layers, but it seems that you didn't convert this batchnorm to SyncBatchNorm.