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.

Register now for SEA’s Improving Scientific Software Conference

March 10, 2021

Registration is open until March 17 for the UCAR Software Engineering Assembly’s Improving Scientific Software Conference 2021, which will be held virtually March 22-26. Registration is free. See the conference web page for additional information.

HPC maintenance and systems update

March 10, 2021

Maintenance work scheduled for Tuesday on HPC systems at the NCAR-Wyoming Supercomputing Center went as expected and without incident. The Cheyenne and Casper clusters, GLADE file systems, Campaign Storage, data-access nodes, HPSS, and JupyterHub services are expected to remain unavailable until this evening. Users will be notified of any significant changes to the schedule and are advised to w...

Reanalysis combines 80 hindcasts with observations to improve forecast reliability

March 9, 2021

A team of NCAR scientists has released a reanalysis that combines an ensemble of 80 different hindcasts (forecasts made for a time in the past) with real-world observations to better understand phenomena like hurricanes and improve the reliability of forecasts. The resulting reanalysis provides snapshots of the atmosphere four times a day from 2011 through 2019, and a detailed picture of atmosp...

Reminder: HPC systems maintenance downtime March 9-10

March 8, 2021

NCAR’s HPC resources will be unavailable to users March 9-10 to allow CISL staff and HPE engineers to perform compute and networking infrastructure updates and maintenance. Significant updates, as announced previously, include the addition of high-throughput computing (HTC) nodes to the Casper cluster. Related documentation will be available by Thursday. The Cheyenne and Casper clusters, GLADE ...

Systems downtime for week of March 8 - 12

March 8, 2021

Cheyenne, Casper, GLADE, Campaign Storage, JupyterHub, HPSS, Stratus, and Quasar will be down from 06:00 MST on March 9th until 21:00 MST on March 10th in support of network upgrades.

Casper transition to PBS begins with addition of HTC nodes

March 4, 2021

The previously announced transition of the Casper cluster’s scheduler from Slurm to the PBS Pro workload manager will begin with the addition of 64 new high-throughput computing (HTC) nodes during the March 9-10 scheduled maintenance downtime. The HTC nodes will be accessible only through PBS Pro. The other Casper nodes will be transitioned to PBS Pro over the next several weeks according to th...