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HPC Infrastructure & Troubleshooting Handbook
A Practical Guide to Linux, Slurm, InfiniBand, NVIDIA GPUs, NCCL and Cluster Operations
This book is 100% completeLast updated on 2026-09-08
A practical, operations-focused handbook for engineers working with HPC and AI infrastructure. Learn how to troubleshoot Linux, InfiniBand, NVIDIA GPUs, Slurm, UFM, NCCL, storage, and cluster infrastructure using a structured, evidence-driven approach.
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About the Book
HPC Infrastructure & Troubleshooting Handbook is a practical, operations-focused guide for engineers working with high-performance computing, AI infrastructure, Linux systems, GPUs, high-speed networking, and cluster operations.
Instead of focusing only on theory, this book shows how to approach infrastructure problems systematically — from identifying symptoms and collecting evidence to isolating faults, determining root cause, applying corrective actions, validating the result, and preventing recurrence.
Inside the book, you will learn about:
• HPC cluster architecture and infrastructure fundamentals
• Linux administration and performance troubleshooting
• CPU, memory, NUMA, and server hardware
• HPC storage architecture and storage troubleshooting
• InfiniBand, RDMA, IPoIB, RoCE, and fabric administration
• NVIDIA GPU infrastructure and GPU troubleshooting
• NVLink and NVSwitch fundamentals
• Slurm architecture, commands, scheduling, GPU scheduling, and troubleshooting
• HPC monitoring and NVIDIA UFM
• NCCL fundamentals and distributed GPU workload troubleshooting
• HPC data center operations and physical infrastructure
• Practical troubleshooting playbooks and decision-making approaches
• HPC command references and interview scenarios
The book follows a repeatable troubleshooting methodology:
OBSERVE → COLLECT EVIDENCE → ISOLATE → ROOT CAUSE → FIX → VALIDATE → PREVENT
Whether you are an HPC engineer, Linux administrator, data center engineer, AI/GPU infrastructure engineer, cluster administrator, or an engineer transitioning into HPC, this handbook is designed to help you move from understanding individual technologies to operating and troubleshooting the complete infrastructure stack.
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About the Author
SUBHANI NURBASHA
Subhani Roshan is an HPC and data center infrastructure professional with experience in Linux-based HPC and AI infrastructure, InfiniBand, NVIDIA GPU infrastructure, Slurm, UFM, cluster operations, hardware troubleshooting, and data center operations. His work focuses on practical infrastructure deployment, troubleshooting, and operational reliability across HPC and AI environments.
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