I want to convert my tensorflow model to tensorRT c++. I has trained my model while the placeholder uses NHWC format. But when I read the user guide of TensorRT, it says the Input should always be NCHW format. So should I rebuild and retrain the model with NCHW format? Or I just need change the input from NHWC to NCHW. And the TensorRT engine will change the data format automatically for loading weights and calculation?