Hi,

if my model is generated in Python using torch.jit.trace().save(), will it still work to load the model and parallelize it in C++

The difference with this other post is that you don’t save the DataParallel mode, you want to apply it afterward.

Do I misunderstand what you said?

No that was my suggestion. But it looks like the jit::Module is not working fine to replace a nn::Module here 
Could you open an issue on github about that please?