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.

Derecho weekly update

May 22, 2023

Derecho’s Acceptance Test Phase (ATP) was paused last week to allow HPE system engineers to focus on debugging the system and to resolve job launch failures, Slingshot network issues, and performance variability. While HPE has fully resolved the job launch failures, we continue to observe performance variability of select workloads and HPE is working to resolve the remaining performance issues....

No system downtimes for week of May 22 - 26

May 19, 2023

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

No system downtimes for week of May 15 - 19

May 15, 2023

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

May 24 tutorial for new users to NCAR supercomputing

May 12, 2023 Updated: May 15, 2023

A CISL Consulting Services Group (CSG) tutorial from 1 to 2:30 p.m. MDT on Wednesday, May 24, will introduce new users to the Cheyenne high-performance computing system and the Casper cluster for data analysis, visualization, and machine learning. Topics that CSG’s Mea Trahan will cover include: • What HPC systems are available at NCAR and how to access them • Basics of job submission in a ba...

Derecho weekly update

May 15, 2023

The availability testing portion of Derecho’s Acceptance Test Phase (ATP) continued last week and Derecho is meeting availability requirements with an average of 30,000 jobs running on the system daily and fewer than 75 daily failures. The Derecho project team continues working on two primary application-related issues with HPE subject matter experts. The first issue is that intermittent launch...

NCAR’s Yellowstone still running supercomputing jobs and training students

May 12, 2023

Although the NCAR decommissioned its Yellowstone supercomputer at the end of 2017, according to NCAR’s supercomputing history, that wasn’t really the end of the story. Even today, researchers still use much of the system’s hardware, publish scientific papers based on their work, and students learn about high-performance computing and move on to careers in the field. “Yellowstone provides tens ...