How to export Pytorch Deep Neural Networks trained model to C++ program to use it from C++? I want to build a DNN model that I will later integrate into a C++ program.

I heard that PyTorch model is hard to load it on C++ and the integration requires extra code, and it's complicated.

I have searched a bit on the internet and I have found this post: Loading a PyTorch Model in C++. I am still unsure whether or not I will have any problems in practice if I opt for PyTorch.
PyTorch now has a C++ frontend. I haven't tried it, but I'm sure you could use that.

Another option, which is more production-tested, is using a message passing framework such as ZeroMQ to communicate requests and results between Python and C++ executables.