Print a banner for running the system

def banner(self, command_name) -> None:
        """ Print a banner for running the system """
        import torch
        device = self.torch_device()

        print("=" * 80)
        print(f"Pytorch version: {torch.__version__} cuda version {torch.version.cuda} cudnn version {torch.backends.cudnn.version()}")
        print("Running model {}, run {} -- command {} -- device {}".format(self._model_name, self.run_number, command_name, self.device))
        if device.type == 'cuda':
            device_idx = 0 if device.index is None else device.index
            print(f"CUDA Device name {torch.cuda.get_device_name(device_idx)}")
        print(dtm.datetime.now().strftime("%Y/%m/%d - %H:%M:%S"))
        print("=" * 80)