I have released as open source the small web application that we use to show the nodes, queues and jobs running on our HPC cluster. This is used by the cluster administrators to quickly see the status of the nodes and how busy they are, to check how full each queue is and to see what jobs are running and queued. It’s also useful for users to see this information as well.
You can see this web app in use here: https://hpc.research.uts.edu.au/status/
It's been released on GitHub here: https://github.com/UTS-eResearch/pbsweb
And it's been announced as available on the PBS Pro open source forum.