Skip to main content

HPC Cluster News

Network Changes May Affect HPC Cluster Access​

posted on: 06/24/2025

Ongoing campus network upgrades may impact user access to the HPC cluster. Since June 9, IT has been gradually updating network infrastructure across campus buildings to strengthen cybersecurity. The upgrade schedule by building is available here: https://it.ucmerced.edu/ProtectUs_NAC. Several buildings have already been successfully migrated, with all updates expected to be completed by July 11.

If your building has recently undergone this migration, your device may require updated network configurations to maintain access to campus systems, including the HPC clusters.

To ensure your device is properly configured, please schedule an appointment with the OIT Service Desk.

Important Note for Personal Devices: If you're using a personal device, you must connect through the campus VPN to access the cluster—even when connected to the campus LAN.

HPC CENVAL-ARC symposium (Mar. 7th 2025)​

posted on: 03/01/2025

The University of California, Merced invites you to the 2025 Central Valley Accessible Research and Computational Hub (CENVAL-ARC) Symposium, proudly sponsored by the National Science Foundation’s Campus Cyberinfrastructure (CC) program*. https://cenval-arc.ucmerced.edu/

HPC clusters maintenance (Sep. 23 - 27th, 2024)​

posted on: 09/02/2024

HPC clusters MERCED and Pinnacles will be under a maintenance for critical maintenance and for installing hardware from 6am Sep. 23 - 5pm Sep. 27, 2024. During this time, users will not be able to:

  • Login to the clusters and access their data
  • Run jobs on the cluster

Note that the Slurm reservations will be set in place to make sure jobs do not run after 6am on Sep 23. Please make sure that you are submitting your jobs with a wall-clock time does not exceed 6m on Sep. 23.

During this maintenance, CIRT team along with cluster vendors will perform the following tasks:

  • Physical installation of CENVAL-ARC compute nodes
  • Upgrading Slurm version
  • Regular maintenance

Emergency Maintenance Notification for MERCED and Pinnacles HPC Clusters - 06/17/2024​

posted on: 06/02/2024

We are writing to inform you of emergency fire management system maintenance scheduled by Facilities on Monday, June 17th, from 1:00 PM through 1:30 PM that will impact the MERCED and Pinnacles HPC clusters.

During the maintenance window, the clusters will be offline to ensure the safety and integrity of our systems. Any jobs running or scheduled to run during this period will be lost.

Please plan accordingly if you have any critical tasks requiring cluster access during this time.

For up-to-date information on the status of the clusters during this maintenance, please visit status.ucmerced.edu. We anticipate that the clusters will be back online before the end of the business day.

Thank you for your understanding and cooperation

COMPLETED: HPC cluster maintenance - 1/16/24​

posted on 01/16/2024

The MERCED and Pinnacles clusters are back online. The CIRT team has completed several updates, including security advisories, bug fixes, and product enhancements. Upgrades encompassed storage server firmware, storage chassis firmware, IB and Data network expansion, and nodes' BIO and BMC firmware. Currently, the default CUDA version for GPU nodes (gnode) is 12.3.

Please feel free to resume

Last updated on by Yue Yu