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.

Default module updates completed April 11
April 12, 2022

The default module updates for software programs and libraries that were announced last month were implemented on Monday, April 11. The most notable change was for the MPT MPI library on Cheyenne, where the default is now version 2.25. The new version contains many backend improvements and users should migrate to mpt/2.25 for distributed workflows as soon as possible. The full list of new defau...

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No system downtimes for week of April 11- 15
April 11, 2022

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

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CISL update for conda users
April 8, 2022

Our previous recommendation in a heads up for conda users about not using Python versions 3.8 or later no longer applies. We cannot now reproduce the failure modes that resulted in the "BlockingIOError: [Errno 11]..." message on Cheyenne and Casper, and we no longer recommend limiting your use to version 3.7.

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Reminder: HPC systems and NWSC maintenance downtime in May
April 7, 2022

NCAR’s HPC resources will be unavailable to users May 9-13 while CISL staff perform annual system and facility maintenance at the NCAR-Wyoming Supercomputing Center (NWSC). The work includes a number of HPC system software updates in addition to power and cooling system maintenance tasks. Progress will be communicated through Notifier emails during the week. Software upgrades are planned for al...

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Registration open for GPU series: Directive-Based Programming with OpenACC (2 of 2)
April 4, 2022

Registration is open for another session in a series of workshops and tutorials on GPU computing. “Directive-Based Programming with OpenACC (2 of 2)” will be on Thursday, April 14, at 10 a.m. MDT. Please use this form to register by April 10 if you plan to attend and have not already registered for the series.  The series of one-hour sessions is for scientists, software engineers, and students...

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No system downtimes for week of April 4-8
April 1, 2022

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

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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.