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.

Subject: Update: Changes to the HPC Bulletin

August 3, 2026

All, Thank you for taking the time to read our daily bulletin! For the past several decades, we have published the Daily Bulletin for our technical user community on a daily cadence. We're making a few changes to how we communicate HPC updates, effective soon. The “Daily Bulletin” will transition to a new format and name. Going forward, it will be known as the HPC Bulletin and will shift from...

Upcoming Outages: Derecho (3 days, 8/31-9/2); All Services (1 day, 9/1)

August 2, 2026

CISL is planning HPC system outages for the following services on an overlapping schedule: • All user-facing services: Tuesday, September 1 • Derecho: Monday, August 31 – Wednesday, September 2 All system services will be sporadically unavailable on Tuesday, September 1 to allow for necessary software upgrades and hardware maintenance. This includes Casper, filesystem access, and Quasar, along...

Announcing sam.hpc.ucar.edu

August 2, 2026

After a lot of internal development, the new SAM web interface is ready for you to use: https://sam.hpc.ucar.edu. Sign in with your usual UCAR SSO and you'll land on a dashboard for your stuff. My Accounts lists every project you belong to, with allocated / used / remaining for each resource, how fast you're burning it, and when it expires. My Jobs gives you your recent job history on Derecho a...

Read the article: Neighborhood-level wind forecasts are on the horizon

June 29, 2026

NSF NCAR researchers are leveraging the Derecho supercomputer to develop groundbreaking, neighborhood-scale wind forecasts down to a two-meter resolution. By pairing uncrewed aircraft observations with FastEddy—an advanced microscale model—scientists can simulate how real-time wind gusts and turbulence interact with local buildings and trees. This innovative use of computational resources deliv...

Join a seminar about storm-time ionosphere-thermosphere modeling

June 29, 2026

On Wednesday, July 8, from 2:00 pm to 3:00 pm MT, join the High Altitude Observatory (HAO) at NSF NCAR for a seminar. The talk is entitled "How Far Can Observation-Constrained Field-Aligned Currents Take Us? Insights into Storm-Time Ionosphere-Thermosphere Modeling." The speaker, Qingyu Zhu, is an assistant professor of physics at The University of Texas at Dallas and a former Advanced Study P...

Tuesday, June 30: “Introduction to GDEX” | GDEX Discovery Series

June 24, 2026

The Geoscience Data Exchange (GDEX) is NSF NCAR's high-performance platform for Earth System Science data sharing, discovery, and analysis. Want to learn more about GDEX, or ready to start using it? Don't miss “Introduction to GDEX,” the next session of the GDEX Discovery Series. Drop in online! Join the one-hour virtual workshop on Tuesday, June 30, at 11:00 am MST. View the event flyer onli...