NodeMan: a node management tool for HPC clusters

Managing nodes in HPC clusters often involves complex, repetitive tasks that require customization. While existing tools can be rigid, NodeMan offers a flexible solution by allowing system administrators to combine familiar command-line tools in a modular way. This streamlines workflows without the need for detailed scripts, enabling easy customization using tools administrators already know.

NodeMan is a command-line tool that helps administrators manage nodes in HPC clusters. It uses bash scripting and GNU parallel as its core framework, making it easy to extend and customize. NodeMan enables administrators to combine commands like building blocks, streamlining complex operations that would typically require lengthy shell scripts. By processing inputs and outputs via stdin/stdout, NodeMan integrates seamlessly with existing command-line tools. It can even interact with IPMI and orchestrate tasks across multiple nodes, making it versatile enough for a wide range of HPC management tasks. NodeMan’s growing library of pre-built functions offers quick solutions, while its extensibility ensures that system administrators can tailor it to their specific needs.

Advantages:

Combines familiar bash scripting and command-line tools into customizable workflows.

Flexible enough to handle complex node management tasks without detailed scripting.

Integrates with standard tools via stdin/stdout, making it more adaptable than rigid alternatives.

Offers remote command execution on nodes, similar to clush and pdsh, but with added flexibility.

Extensible framework allows administrators to easily add new functions as needed.

Applications:

Node management in HPC clusters.

Automating repetitive tasks in cluster administration.

Orchestrating commands across multiple nodes, including remote execution.

Managing nodes with interaction through IPMI and other system-level tools.

Creating ad-hoc solutions without the need for detailed shell scripts.

This software is open source and available at no cost. Download now by visiting the product's GitHub page.