System Updates Archive

Scheduled maintenance will begin Tuesday, November 2, 2021, at 8:00 am. We expect that the cluster will return to service by the end of the day on Thursday, November 4, 2021. During this time, logins to the cluster will be disabled. We ask that you logoff the system prior to the start of the maintenance, after saving your work and closing any interactive applications. An email notification will be sent when the maintenance has been completed, and the cluster is available.

As the maintenance window approaches, the Slurm scheduler will not start any job if the job’s requested wallclock time extends past the start of the maintenance period (8:00 am on Tuesday, November 2, 2021). If you run squeue, such jobs will show as pending jobs with the reason “ReqNodeNotAvail.” If your job can actually be completed in less time than you requested, you may be able to avoid this by making sure that you request the appropriate time limit using “-t” or “–time.” Held jobs will automatically return to active status after the maintenance period, at which time they will run in normal priority order. All running jobs will be terminated at the start of the maintenance period. Please plan accordingly.

Please visit the status page at research.computing.yale.edu/system-status for the latest updates. If you have questions, comments, or concerns, please contact us at hpc@yale.edu.

Sincerely,

Paul Gluhosky

Dear Farnam Users,

As a reminder, we will perform scheduled maintenance on Farnam starting on Tuesday, October 5, 2021, at 8:00 am. Maintenance is expected to be completed by the end of day, Thursday, October 7, 2021.

During this time, logins will be disabled and connections via Globus will be unavailable. Farnam storage (/gpfs/ysm and /gpfs/slayman) will remain available on the Grace cluster. We ask that you logoff the system prior to the start of the maintenance, after saving your work and closing any interactive applications. An email notification will be sent when the maintenance has been completed, and the clusters are available.

As the maintenance window approaches, the Slurm scheduler will not start any job if the job’s requested wallclock time extends past the start of the maintenance period (8:00 am on October 5, 2021). You can run the command “htnm” (short for “hours_to_next_maintenance”) to get the number of hours until the next maintenance period, which can aid in submitting jobs that will run before maintenance begins. If you run squeue, such jobs will show as pending jobs with the reason “ReqNodeNotAvail.” (If your job can actually be completed in less time than you requested, you may be able to avoid this by making sure that you request the appropriate time limit using “-t” or “–time”.) Held jobs will automatically return to active status after the maintenance period, at which time they will run in normal priority order.

Please visit the status page at research.computing.yale.edu/system-status for the latest updates. If you have questions, comments, or concerns, please contact us at hpc@yale.edu.

We are currently experiencing an issue with logins to Milgram. We are working to restore access as soon as possible. We apologize for the inconvenience.

Update 2:45pm - The networking issue has been resolved and access has been restored to the cluster.

Gibbs access has been restored on Grace and Ruddle.

Farnam is unable to access /gpfs/gibbs due to a networking issue. We are working with the vendor to resolve the issue as quickly as possible. Any jobs attempting to read or write data to /gpfs/gibbs may have failed. We apologize for the inconvenience.