Fun with Large Models

Aug 30, 2025 · Artificial Intelligence

How to Fine‑Tune Large Models on Multiple Nodes and GPUs – A Must‑Know Interview Answer

This article explains how to fine‑tune large models across multiple machines and GPUs by covering data, model, tensor, and pipeline parallelism, hybrid 3D parallel strategies, engineering details such as NCCL, PyTorch Distributed, DeepSpeed, fault‑tolerance, checkpointing, and the ZeRO optimizer stages that dramatically reduce memory usage.