Distributed SFT Part 2: Scaling Locally
Introduction
In the first part of this series, we covered the basics of setting up a local SFT experiment using trl
. We learned how to format datasets for trl
's SFTTrainer
and preprocess them to fit the required structure.
Now, it's time to take the next step. In this post, we'll focus on scaling the SFT setup to handle larger tasks. Specifically, we'll explore how to fine-tune an LLM in a single-node, multi-GPU environment. Along the way, we'll discuss optimization techniques to reduce memory usage, speed up training, and enable fine-tuning of even larger models. Let's get started!