Show HN: Solving PDEs on graphs with message passing of torch_geometric

My PyTorch hackathon submission. Basically I am showing that how PDEs on graphs can be solved with Message Passing class of torch_geometric and created a tool torch_pdegraph to facilitate this. I work in the field of PDEs on graphs and I realized that Message passagin equation (the way of forward convolution) on graphs (https://arxiv.org/pdf/1704.01212.pdf) can also be used to solve some PDEs on graphs.