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.

Read the news story: SIParCS internship program welcomes Summer 2025 students
June 9, 2025

On Monday, May 19, NSF NCAR’s Computational and Information Systems Lab (CISL) welcomed 12 new interns into the Summer Internships in Parallel Computational Science (SIParCS) program.  The SIParCS program, sponsored by CISL, offers an 11-week experience where interns work closely with lead and co-mentors, culminating in project presentations and a poster symposium at the end of July.  The 202...

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Pythia Cook-off Hackathon: Apply by 6/20 for travel support
June 9, 2025

The 2025 Pythia Cook-off will be held in-person from Tuesday, August 5 to Friday, August 8, at the NSF NCAR Mesa Lab in Boulder, CO. This NSF-funded hackathon is dedicated to the development of Pythia Cookbooks, and emphasizes open-source resources for the scientific community. To join, register here by Sunday, July 20.  Applications for graduate student and postdoctoral travel support are ava...

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Majority of HPC Resources Down through Monday, June 9th
June 6, 2025

The majority of HPC resources will remain down through the afternoon of Monday, June 9. A disk enclosure subsystem of the Derecho scratch filesystem has failed, requiring further replacement activities. A spare part is being shipped, but we will not be able to restore additional services today. The Campaign Storage, Home, and Work file systems are up and accessible through the Casper login nod...

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June 5th Update: Major HPC Facility Maintenance
June 5, 2025

NWSC Facility Maintenance is continuing throughout the week and progressing according to schedule. As of 7AM MDT Wednesday June 4th all resources have been down and are expected to remain so until no-earlier-than Thursday morning.  We have been using one of two redundant internal power feeds today to allow for electrical system maintenance.  This configuration triggered an instability which ha...

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June 3rd Update: Major HPC Facility Maintenance
June 3, 2025

NWSC Facility Maintenance is continuing throughout the week. Initial shutdown activities were completed yesterday.  We experienced a number of challenges with temporary cooling units that have impacted our original system continuity plans.  At this point home, work, Campaign Storage file systems remain available and can be accessed through the Casper login nodes.  Currently, no Casper compute ...

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5/19/25 - Reminder: Major HPC Maintenance Beginning June 2
June 2, 2025

As previously announced, CISL staff will be performing necessary facility maintenance at the NCAR-Wyoming Supercomputing Center (NWSC) beginning on June 2 to replace critical power and cooling systems which have reached their end service life. Because of the nature of this work, it will be necessary to shut down all Derecho compute nodes, the Quasar tape archive, and a portion of the Casper com...

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This material is based upon work supported by the National Center for Atmospheric Research, a major facility sponsored by National Science Foundation and managed by the University Corporation for Atmospheric Research. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the National Science Foundation.