How does DeepSpeed work?

The library is best known for introducing ZeRO (Zero Redundancy Optimizer), but it also includes pipeline parallelism, expert parallelism for MoE, automatic mixed precision, and the DeepSpeed-Chat training pipeline for RLHF. DeepSpeed powered the training of Microsoft's Turing-NLG, the Megatron-Turing NLG collaboration with NVIDIA, and many other large models. The platform strengthens enterpri