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.

REMINDER: Cheyenne downtime planned July 31-August 4 to address ongoing network performance issues
July 21, 2023

The Cheyenne InfiniBand high-speed network continues to operate in a degraded state after the failure of two switches. CISL and HPE staff are planning to repair the network during a full system downtime the week of July 31. The precise duration of the downtime is unknown until the extent of the remediation work is identified – some of which will need to be discovered when the downtime and requ...

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No system downtimes for week of July 24 -28
July 21, 2023

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

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Last chance to submit an abstract for November Correctness and Reproducibility Workshop
July 17, 2023

Abstracts are being accepted now through August 1 for the Workshop on Correctness and Reproducibility for Climate and Weather Software. This workshop will take place November 9-10 at NCAR’s Mesa Laboratory in Boulder, Colorado, and virtually. We are soliciting talks related to, but not limited to, the following topics: • Tools and approaches for software testing, debugging, quality assurance, a...

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No system downtimes for week of July 17 - 21
July 17, 2023

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

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No system downtimes for week of July 10 - 14
July 10, 2023

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

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Derecho launches operations
July 7, 2023

NCAR has launched operations of its newest supercomputer, “Derecho,” at the NCAR-Wyoming Supercomputing Center in Cheyenne. Built by Hewlett Packard Enterprise, Derecho is a 19.87-petaflops system, with about 3.5 times the computing speed of the previous NCAR supercomputer, “Cheyenne.” Derecho is initially being used for a set of 15 projects by scientists at NCAR as well as at universities acro...

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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.