Convert nngraph model to nn model

[Ruppesh Nalwaya]

Hi

I want to convert the pix2pix Image to Image translation model (https://github.com/phillipi/pix2pix) which is built using nngraph. 

When I try to convert it to caffe model using torch to caffe tool (https://github.com/facebook/fb-caffe-exts#torch2caffe) I get the error "unknown class nn.gModule".

I also try to load torch model in pytorch by load_lua from torch.utils.serialization where I get similar error. 

Since, it seems nngraph is not supported for conversion. Is there a way to convert nngraph model to nn model without the need of rewriting or retraining? Down the line, I want to convert the pix2pix model into various formats like caffe, caffe2, coreML and others to test the performance in mobile environment.

Thanks

Ruppesh