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.

Xdev tutorial March 10: Numpy
March 3, 2021

The NCAR Xdev team will host the next in a series of one-hour tutorials at 1 p.m. MST on Wednesday, March 10: Numpy. This is an introduction to essential Numpy functionality. For more information or to sign up for events and updates, visit the Xdev blog.

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VAPOR 3D visualization tutorial March 17
March 2, 2021

Registration is open for a free VAPOR visualization tutorial from 2 to 3 p.m. MDT on Wednesday, March 17. Attendees will learn about principles of 3D visualization and see a demonstration of some of those principles. VAPOR is the Visualization and Analysis Platform for Ocean, Atmosphere, and Solar Researchers. It provides an interactive 3D visualization environment that can also produce animati...

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Casper changes coming to improve throughput, simplify job scheduling
February 22, 2021 Updated: March 2, 2021

Two major changes to improve job throughput and simplify job scheduling will be made to the Casper cluster during the system maintenance downtime scheduled for March 9-10. As announced late last year, 64 nodes will be added to the system and configured similarly to Casper’s existing non-GPU nodes. This expansion will enable high-throughput computing (HTC) on Casper for batch jobs and tasks that...

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HPC systems maintenance downtime scheduled for March 9-10
February 12, 2021 Updated: March 2, 2021

NCAR’s HPC resources will be unavailable to users March 9-10 to allow CISL staff and HPE engineers to perform compute and networking infrastructure updates and maintenance. The maintenance period will begin early Tuesday morning, March 9, and the systems are expected to be returned to service by Wednesday evening, March 10.   The Cheyenne and Casper clusters, GLADE file systems, Campaign Storag...

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XSEDE workshop March 2: GPU Programming Using OpenACC
February 10, 2021 Updated: March 2, 2021

Registration is open for an OpenACC GPU programming workshop presented on March 2 by XSEDE and the Pittsburgh Supercomputing Center (PCU). It will be a good learning opportunity for users of NCAR’s next supercomputer, which will get 20% of its sustained computing capability from GPUs. The workshop assumes participants have some knowledge of either C or Fortran programming. It will have a hands-...

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Compiling code update: Transition from PGI to NVIDIA
February 4, 2021 Updated: March 4, 2021

CISL documentation for compiling code to run on the Cheyenne and Casper systems has been updated because of changes to the PGI compiler. It has become the NVIDIA HPC (nvhpc) compiler and all future versions will be released as such. The updated Compiling code documentation advises PGI users to transition to the nvhpc compiler, which has no license limitations, although the PGI compiler remains ...

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This material is based upon work supported by the National Center for Atmospheric Research, a major facility sponsored by the 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.