https://www.rik-kisnah.ai/tags/hpc/Recent content in HPC on Rik Kisnah - BlogHugoenSat, 15 Nov 2025 00:00:00 -0700https://www.rik-kisnah.ai/posts/nccl-complete-reference-guide/Sat, 15 Nov 2025 00:00:00 -0700https://www.rik-kisnah.ai/posts/nccl-complete-reference-guide/Disclaimer: This article reflects my personal research and analysis based on publicly available information and is not representative of my employer’s official position. Executive Summary NCCL (NVIDIA Collective Communication Library) is the cornerstone of distributed GPU computing, enabling efficient communication between GPUs in multi-node clusters. This comprehensive guide provides every NCCL command, parameter, error message, and troubleshooting technique you need for successful deployment on Oracle Cloud Infrastructure (OCI). Table of Contents Why NCCL Exists Understanding Collective Communications NCCL Fundamentals Complete NCCL Commands Reference All NCCL Environment Variables NCCL Error Messages and Solutions OCI GPU-Specific Configurations Advanced Troubleshooting Scenarios Performance Tuning Reference Quick Reference Tables Why NCCL Exists The Distributed Training Challenge Modern AI models have grown exponentially in size and complexity.https://www.rik-kisnah.ai/posts/summary-gpu-oci-first-principles-blog/Sun, 26 Oct 2025 22:43:15 -0400https://www.rik-kisnah.ai/posts/summary-gpu-oci-first-principles-blog/Disclaimer: This article reflects my personal research and analysis based on publicly available information and is not representative of my employer’s official position. In the rapidly evolving landscape of AI infrastructure, one company has quietly revolutionized how we think about GPU computing at scale. Through a series of “First Principles” engineering blogs and groundbreaking deployments, Oracle Cloud Infrastructure (OCI) has demonstrated that starting from fundamental physics and systems design—rather than following industry conventions—can yield extraordinary results.