[D] PyTorch Distributed Data Parallelism: Under The Hood

[https://lambdalabs.com/blog/multi-node-pytorch-distributed-training-guide/](https://lambdalabs.com/blog/multi-node-pytorch-distributed-training-guide/)

This is a step-by-step guide that:

* Walks you through how to scale your PyTorch training across multiple nodes.
* Provides examples that showcase the boilerplate of PyTorch DDP training code.
* Shows you how to launch applications using PyTorch’s distributed.launch and torchrun methods, as well as Open MPI’s mpirun method.

data distributed distributed data machinelearning pytorch