Here is the summer maintenance schedule for the HPC Rocket Cluster.
HPC cluster Rocket updates are scheduled for July 2026 to improve the cluster's performance and capabilities.
1. Login Node Updates
We'll be performing system updates on both login nodes on the following dates:
* Login1: July 21st
* Login2: July 28th
To minimize disruption, we'll close new SSH connections to the corresponding login node one week before each update, allowing existing connections to naturally expire. One of the login nodes will remain available at all times, so you won't experience any service downtime.
2. Slurm Update
On July 28th, starting at 15:00, we'll be upgrading the Slurm version. Your running jobs won't be affected. However, during the update, submitting new jobs, SLURM commands like sacct, sacctmgr, and related tools will be unavailable. The process should take about two hours, but may run longer.
The compute nodes will also receive OS, BIOS, and firmware upgrades.
After July 28th, the compute nodes will be updated in a rolling fashion. This means some nodes will be temporarily drained until all updates are complete, which may result in longer queue times depending on cluster usage.
The Open OnDemand service, as the UTHPC cluster portal, is also affected.
