https://theloginnode.com/series/hpc-101/ Recent content in HPC 101 on The Login Node Hugo -- gohugo.io en © 2026 Will Paik Wed, 28 Jan 2026 00:00:00 +0000 https://theloginnode.com/posts/hpc101-04/ Wed, 28 Jan 2026 00:00:00 +0000 https://theloginnode.com/posts/hpc101-04/ Job failures on HPC clusters are frustrating, especially without clear feedback. This post breaks down how to use sacct, seff, and Slurm log files to figure out exactly what went wrong and how to prevent it next time. https://theloginnode.com/posts/hpc101-03/ Sun, 18 Jan 2026 00:00:00 +0000 https://theloginnode.com/posts/hpc101-03/ Shared HPC clusters do not give you root access, and the system Python is not yours to modify. This post shows how to set up isolated Python environments using Conda and venv so you can install whatever you need without permission errors or breaking someone else’s workflow. https://theloginnode.com/posts/hpc101-02/ Fri, 02 Jan 2026 00:00:00 +0000 https://theloginnode.com/posts/hpc101-02/ Copying files to a remote cluster is easy to get wrong. A basic scp works fine until your dataset is large and the connection drops halfway through. This post covers scp for quick transfers, rsync for large or resumable jobs, and git for code that belongs in version control anyway. https://theloginnode.com/posts/hpc101-01/ Sat, 27 Dec 2025 00:00:00 +0000 https://theloginnode.com/posts/hpc101-01/ Every HPC user starts somewhere, and it usually involves staring at a login prompt with no idea what to do next. This post covers the three things you need on day one: SSH access, loading software with the module system, and submitting your first Slurm batch job.