Research Paper#Large Language Models (LLMs), Distributed Training, Communication Optimization🔬 ResearchAnalyzed: Jan 3, 2026 06:26
Communication Predictability in LLM Training
Published:Dec 31, 2025 09:50
•1 min read
•ArXiv
Analysis
This paper addresses a crucial aspect of distributed training for Large Language Models (LLMs): communication predictability. It moves beyond runtime optimization and provides a systematic understanding of communication patterns and overhead. The development of an analytical formulation and a configuration tuning tool (ConfigTuner) are significant contributions, offering practical improvements in training performance.
Key Takeaways
- •Systematic analysis of communication predictability in LLM training.
- •Development of an analytical formulation to estimate communication overhead.
- •Introduction of ConfigTuner, a configuration tuning tool for optimizing training performance.
- •Demonstrated performance improvements compared to existing LLM training frameworks.
Reference
“ConfigTuner demonstrates up to a 1.36x increase in throughput compared to Megatron-LM.”