Interesting, I've been dealing with replacing a few on-prem HPC clusters lately. One of the things we've been looking at is OpenOnDemand. How does this compare to that? Is this primarily targeted at cluster development or can I really just make an arbitrarily large production HPC cluster with it?

Don’t you still need the HPC cluster with OpenOnDemand? I thought it was a web interface to use HPC resources.

But this still runs on a single computer, so you wouldn’t use this to deploy a production cluster. This would be for testing in a virtual multi-node-ish setup.

ondemand is "just" a web frontend for using a traditional HPC cluster, which of course means its architecture is deeply cursed: https://osc.github.io/ood-documentation/latest/architecture....