Pytorch Hardware Requirement
What is the minimum Computation Capability required by the latest PyTorch version?
I have Nvidia Geforce 820M with computation capability 2.1. How can I run PyTorch models on my GPU (if it doesn't support naturally)

Looking at this page, PyTorch (even the somewhat oldest versions) support CUDA upwards from version 7.5. Whereas, looking at this page, CUDA 7.5 requires minimum Compute Capability 2.0. So, on paper, your machine should support some older version of PyTorch which allows CUDA 7.5 or preferably 8.0 (as of writing this answer, the latest version uses minimum CUDA 9.2). 

However, PyTorch also requires cuDNN. So, cuDNN 6.0 works for CUDA 7.5. But cuDNN 6.0 requires Compute Capability of 3.0. So, mostly, PyTorch won't work on your machine. (Thanks for pointing out the cuDNN part Robert Crovella)
