#slurm
4 posts tagged slurm.
Slurm was the easy part: a batch scheduler on an EDA estate
Standing up Slurm on a chip design company's compute estate took a day. Almost none of that day was spent on Slurm. It went on a hardened OS, an ageing systemd, identity, DNS, NFS netgroups, and a monitoring stack that failed without saying so.
The condo model and the money shot: watching Slurm preempt a job
Sherlock's condo model: research groups buy nodes and get guaranteed priority; everyone else uses idle cycles and gets bumped when an owner shows up. Here we configure it on two VMs and watch a high-priority job preempt a running one, live.
OpenHPC, Munge, and Slurm: wiring the cluster's brain
A cluster runs on trust: every daemon has to prove who it is, and they all have to agree on the time. This part installs the curated software stack and the shared-secret auth that lets a pile of VMs become one cluster.
What an HPC cluster actually is (and how to fake one on a single box)
Strip away the marketing and a supercomputer is five roles wired to a private network. Here's the mental model, and the groundwork for rebuilding a Sherlock-style HPC cluster on one Linux box.