This workshop is part of the Intro to HPC series provided by Jacob Gladfelter, SPH Unit Support for ARC services, and will cover the fundamentals of determining available resources, tools, and the costs associated with using the University of Michigan HPC clusters. We will introduce tools that help estimate job cost, monitor usage, and evaluate performance—along with guidance on interpreting job statistics such as CPU and memory efficiency. A short walkthrough will demonstrate how to identify inefficient jobs and make improvements.This workshop is intended for new and intermediate HPC users who want to better understand resource usage, avoid unnecessary costs, and run jobs more efficiently.Attendees should leave with a clear understanding of how HPC cost works on ARC clusters, along with practical strategies they can apply immediately in their workflows.Workshop topics:How do I know what resources I need for my jobs?How do I determine the cost of using those resources?What factors affect the cost?Am I using the resources efficiently?