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.

5/14/25 - Upcoming Casper Changes: DNS and Job Swap Space

May 15, 2025

Two user-visible changes are planned for the Casper cluster in the coming month. The first change will be the removal of the deprecated casper.ucar.edu domain name for SSH login usage. The current recommended domain name for accessing Casper is casper.hpc.ucar.edu. The old address will be retired as early as May 21, so now is the time to switch to the casper.hpc.ucar.edu domain when using ssh/s...

Apply for Training Cohort—Use of HPC and CyberInfrastructure

May 9, 2025

Join CI Pathways (NSF award 2417789) to elevate your research with cutting-edge cyberinfrastructure tools! This cohort-based training program offers a guided approach to using CI with expert mentorship and peer learning. Participants will have opportunities to build relationships lasting beyond the CI Pathways program. Three Learning Pathways will be available: - Machine Learning & AI - Data ...

Read the article: “The simple formula that describes wind speeds”

May 7, 2025

Leveraging NSF NCAR supercomputing, Johns Hopkins researchers have crafted a simple yet powerful formula modeling lower atmospheric winds. This innovative work, which utilized the Cheyenne supercomputer, condenses complex data into a user-friendly model of wind velocity at various heights. This work offers significant benefits for climate science and renewable energy. In a new CISL News articl...

Join a virtual Town Hall on cyberinfrastructure developments at NSF NCAR

May 7, 2025

On Wednesday, May 28, 2025, from 9:00 to 10:00 am MT, the American Meteorological Society (AMS) will host a virtual Town Hall presented by NSF NCAR, entitled "NSF NCAR’s Advanced Computing, Data Services, Software and Educational Resources for Earth System Science." This webinar will highlight exciting new developments in the cyberinfrastructure at NSF NCAR, which supports Earth system science...

Project Pythia releases new cookbook for the Digital Earths Hackathon

May 7, 2025

The Pythia team has released a new cookbook, the HEALPix Cookbook, for the WCRP Digital Earths Global Hackathon. This resource introduces the Hierarchical Equal Area isoLatitude Pixelation of the Earth and guides you through using easy.gems and UXarray for data analysis and visualization on HEALPix datasets. Driven by the hackathon, this accessible cookbook offers reproducible workflows, run...

Slides and recordings now available from this year’s ISS conference

May 5, 2025

From April 7 to 10, 2025, software engineers, scientists, and developers came together in Boulder and online for ISS25, the Improving Scientific Software conference. The presentation slides and recordings are now available from within the online conference program. Organizers would like to thank the participants and organizers who made the 2025 ISS Conference possible, and hope to see new and...