NCCL: The Hidden Engine Behind Multi-GPU LLM Training (opens in new tab)

Hello, I'm Shrijith Venkatramana. I'm building git-lrc, an AI code reviewer that runs on every commit. Star Us to help devs discover the project. Do give it a try and share your feedback for improving the product. When developers first learn about Large Language Models, they focus on transformers, attention mechanisms, datasets, and GPUs. Then reality hits. A modern frontier model might be trained on thousands of GPUs simultaneously. The challenge is no longer just matrix multiplication. The ...