The Daily Bulletin

January 22, 2019

CISL is now accepting large-scale allocation requests from university-based researchers for the 5.34-petaflops Cheyenne supercomputer and the Casper data analysis and visualization cluster. Submissions are due March 5. Researchers are encouraged to review these allocation instructions before preparing their requests.

In addition to requesting computing allocations, university projects should request long-term space on the NCAR Campaign Storage resource instead of HPSS. Unlike HPSS, Campaign Storage has no default minimum amount; users are asked to justify the amount requested. The CISL HPC Allocations Panel (CHAP) is applying increased scrutiny to data management plans and storage requests.  

At the spring meeting, CISL will allocate up to 275 million core-hours on Cheyenne, up to 2 PB of Campaign Storage space, and up to 200 TB of GLADE project space. Large allocations on Cheyenne are those requesting more than 400,000 core-hours. CISL accepts requests from university researchers for these large-scale allocations every six months. Please contact if you have any questions.


January 17, 2019

A video recording and slides from the January 14 NCAR/CISL tutorial for new Cheyenne supercomputer users have been added to the CISL Course Library. The 50-minute Introduction to Cheyenne tutorial covers basic usage and typical user workflows. Topics discussed include:

  • The Cheyenne computing environment

  • Accessing software, including compilers and MPI libraries

  • Submitting batch jobs using the PBS scheduler