Distributed training using Torch C++ frontend and MNIST dataset

Based on the provided distributed example at:

https://github.com/pytorch/examples/blob/main/cpp/distributed/dist-mnist.cpp

Where to get the data?

There exist two links from where to download the dataset:

• https://www.kaggle.com/api/v1/datasets/download/hojjatk/mnist-dataset (this one has the right structure)
• https://www.kaggle.com/api/v1/datasets/download/novinnouri/mnist-dataset