Update train_alexnet.py

Nataniel Ruiz

2018-02-25 80aa5f6995a29fc500f81217255f6b7c086af3f9

 code/train_alexnet.py

@@ -179,7 +179,7 @@
            loss_roll += alpha * loss_reg_roll

            loss_seq = [loss_yaw, loss_pitch, loss_roll]
            grad_seq = [torch.Tensor(1).cuda(gpu) for _ in range(len(loss_seq))]
            grad_seq = [torch.ones(1).cuda(gpu) for _ in range(len(loss_seq))]
            torch.autograd.backward(loss_seq, grad_seq)
            optimizer.step()