How to check the number of CUDA cores are used for a given task?

Hello everyone,
I am using GTX1050(640 CUDA cores and 2GB), CUDA and cuDNN for deep neural network training.
mobdro.bio/ luckypatcher.tips/ www.kodi.bio/
Are there any tools that I can use to see how many CUDA cores are used during the training in real time? Just like $watch nvidia-smi to check the GPU memory usage.

Thanks,
Jhonygome