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.

No downtime scheduled for May 17-21

May 17, 2021

No downtime scheduled for Cheyenne, Casper, Campaign Store, JupyterHub, HPSS, GLADE, Quasar, or Stratus.

May 24 CISL tutorial for new NCAR HPC users

May 11, 2021 Updated: May 13, 2021

The CISL Consulting Services Group will present an online tutorial at 10 a.m. MDT on Monday, May 24, for new users of NCAR’s Cheyenne high-performance computing (HPC) system and storage resources. The 60-minute tutorial – presented by CSG’s Mick Coady – will cover basic usage and typical user workflows and include time for users to ask questions. Participants are assumed to have a basic underst...

Extended HPC systems downtime scheduled for July 26 through August 2

May 11, 2021

All HPC compute and data storage systems hosted at the NCAR-Wyoming Supercomputing Center will be unavailable during part or all of a planned maintenance downtime beginning Monday, July 26, to allow CISL staff and contractors to perform critical updates to the facility’s power infrastructure in preparation for the arrival of the new Derecho system. The Casper cluster, GLADE file systems, Campai...

No downtime scheduled for May 10-14

May 10, 2021

No downtime scheduled for Cheyenne, Casper, GLADE, JupyterHub, Quasar, Stratus, or HPSS

Q. Where should I run small jobs that only use CPUs?

May 6, 2021

A. The Casper cluster’s high-throughput computing (HTC) nodes. Why? Take a look at the specs. You’ll see that Casper has 64 HTC nodes specifically for running small batch jobs. It also has: • More shared resources than the Cheyenne share queue • A far higher concurrent-use limit for CPU cores than Cheyenne: 468 vs. 36. • More available memory, plus NVMe swap for overflow. Here’s an example sc...

Tutorial May 12: Git and GitHub

May 5, 2021

The NCAR/UCAR virtual Xdev Seminar Series continues on Wednesday, May 12, with "Git and GitHub" at 1 p.m. MDT. Participants will learn advanced Git commands and how to solve common Git errors. See the Xdev blog for more information.