CISL Daily Bulletin

The Daily Bulletin delivers news about CISL’s high-performance computing environment, training opportunities, scheduled maintenance, and other events of interest to the user community. To get the Daily Bulletin by email, use this link to subscribe.

System downtimes for week of October 23 -27

October 20, 2023

All CISL HPC systems - Casper, Cheyenne, Derecho, JupyterHub, and data access nodes, will be down for scheduled maintenance the week of October 23–27 to deploy a new operating system on Casper, and to perform file system migrations in preparation for Cheyenne retirement at the end of this year. CISL engineers will relocate a number of file system datasets during this outage—including /glade/wo...

Cheyenne Countdown: Retirement Ahead! Switch Now to Derecho.

October 20, 2023

In case you missed it, the last day of the year is also the last day for Cheyenne. The system is being retired on December 31, 2023. To avoid a scenario in which any hard-won runs have to be repeated, you should transition any supercomputing projects to Derecho as soon as possible. CISL is unable to provide any researcher with special priority to complete last-minute work, so you should move w...

No system downtimes for week of October 16 - 20

October 13, 2023

None planned for Cheyenne, Casper, Derecho, GLADE, Campaign Storage, Quasar, Stratus, or JupyterHub.

HPC Systems Downtime October 23–27 to Update Casper and Perform File System Migrations

October 13, 2023

All CISL HPC systems will be down for scheduled maintenance the week of October 23–27 to deploy a new operating system on Casper, and to perform file system migrations in preparation for Cheyenne retirement at the end of this year. CISL engineers will relocate a number of file system datasets during this outage—including /glade/work—to new hardware. We will update the operating system on Casp...

Cheyenne Countdown: Transition Your Work to Derecho Now

October 13, 2023

Cheyenne continues to see high levels of activity as researchers finish up projects before the system is retired on December 31, 2023. Because of the many active projects, CISL will not be able to provide any researcher with special priority to complete work in progress. Therefore, researchers should move their work at the next feasible break point. We understand moving to a new system can be ...

Reminder: Full Casper Software Refresh Coming During October Outage

October 11, 2023

To make it easier to create workflows that span Casper and Derecho, CISL has been working on migrating the Casper cluster to an OpenSUSE-based compute environment, with a whole new software stack similar to Derecho (though without Cray modules). Recently-deployed A100 GPGPU nodes already feature this software stack, which is incompatible with any software compiled for the CentOS-based Casper no...