Checkpointing in distributed LLM training
Distributed training introduces additional complexity to checkpointing.
Let’s break down the implementation of a basic distributed checkpointing system and understand each component:
- We first define the
DistributedLLMTrainer
class, which inherits fromRobustLLMTrainer
. TheDistributedLLMTrainer
class is designed for the distributed training of LLMs using PyTorch’storch.distributed
framework. It ensures that the model is trained across multiple devices (e.g., GPUs) or nodes efficiently:import torch.distributed as dist class DistributedLLMTrainer(RobustLLMTrainer): def __init__( self, model, optimizer, checkpoint_dir='checkpoints', autosave_interval=15 ): super().__init__(model, optimizer, checkpoint_dir, ...