vLLM
vLLM is an open-source inference server for large language models (LLMs).
Cardinal
Brief Network Maintenance 7AM Dec 16
We will be conducting network maintenance on Tuesday, December 16, at 7:00 AM EST to prepare for the January 6 scheduled downtime. There is a low probability of brief disconnection for external connections (SSH/OnDemand) to the HPC environment. Running jobs will continue to run. We expect this operation to be seamless.
HOWTO: Use Docker and Singularity Containers at OSC
It is now possible to run Docker and Apptainer/Singularity containers on all clusters at OSC. Single-node jobs are currently supported, including GPU jobs; MPI jobs are planned for the future.
From the Docker website: "A container image is a lightweight, stand-alone, executable package of a piece of software that includes everything needed to run it: code, runtime, system tools, system libraries, settings."
OSC Help Desk Closure During Winter Recess
The OSC Help Desk will be closed for winter recess from Wednesday, Dec. 24, 2025, through Thursday, Jan. 1, 2026. During this period, computing and storage services will remain fully operational. Support requests will be addressed after the Help Desk reopens on Friday, Jan. 2, 2026
System Downtime January 6 2026
A downtime for OSC HPC systems is scheduled from 7 a.m. to 9 p.m., Tuesday, January 6, 2026. The downtime will affect the Pitzer, Cardinal and Ascend Clusters, web portals, the state-wide licenses and HPC file servers. MyOSC (the client portal) will be available during the downtime. In preparation for the downtime, the batch scheduler will not start jobs that cannot be completed before 7 a.m., January 6. Jobs that are not started on clusters will be held until after the downtime and then started once the system is returned to production status.
Storage Service Interruption
On Thursday evening OSC experienced an outage affecting the scratch and project storage systems. *This is resolved.* If you do not see the Project or Scratch filesystems in your filebrowser in OnDemand, use the "Restart Web Server" option in the help menu in the upper right.
