DDP not moving everything to GPU

[surya-narayanan]

I have code that has the following structure

Class Model1():
    def __init__(self):
        self.model = BERT()

class myModule(L.LightningModule):
    def __init__(self):
        super().__init__()
        self.save_hyperparameters()       
        self.encoder = Model1()
        self.decoder = Model1()

it seems self.encoder.model and self.decoder.model are not moved to the GPU, and stay on cpu. Is this expected?