Actually, I already used in these line of code but it never works. I don’t know whether i am writing correct or not. Is it right?
encoder = nn.Dataparallel(network.EncoderCell())
What should i write in below portion for multiple GPUs?

 encoder_h_1 = (Variable(torch.zeros(data.size(0), 256, 8, 8).cuda()),
                       Variable(torch.zeros(data.size(0), 256, 8, 8).cuda()))
        # print(encoder_h_1)
        encoder_h_2 = (Variable(torch.zeros(data.size(0), 512, 4, 4).cuda()),
                       Variable(torch.zeros(data.size(0), 512, 4, 4).cuda()))
        encoder_h_3 = (Variable(torch.zeros(data.size(0), 512, 2, 2).cuda()),
                       Variable(torch.zeros(data.size(0), 512, 2, 2).cuda()))

        decoder_h_1 = (Variable(torch.zeros(data.size(0), 512, 2, 2).cuda()),
                       Variable(torch.zeros(data.size(0), 512, 2, 2).cuda()))
        decoder_h_2 = (Variable(torch.zeros(data.size(0), 512, 4, 4).cuda()),
                       Variable(torch.zeros(data.size(0), 512, 4, 4).cuda()))
        decoder_h_3 = (Variable(torch.zeros(data.size(0), 256, 8, 8).cuda()),
                       Variable(torch.zeros(data.size(0), 256, 8, 8).cuda()))
        decoder_h_4 = (Variable(torch.zeros(data.size(0), 128, 16, 16).cuda()),
                       Variable(torch.zeros(data.size(0), 128, 16, 16).cuda()))