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.

Deadline March 22 for university large-scale allocation requests

February 3, 2021 Updated: March 4, 2021

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. Those requests are due March 22. Cheyenne will continue in operation through mid-2022. Allocations for NCAR’s recently announced next-generation supercomputer that will become operational early in 2022 will ...

NSC allocation requests are due March 24

February 2, 2021 Updated: March 4, 2021

NCAR researchers and computational scientists are encouraged to submit requests for NCAR Strategic Capability (NSC) projects to be run on the Cheyenne system. Requests will be accepted through March 24. NSC allocations target large-scale projects lasting one year to a few years that align with NCAR’s scientific priorities and strategic plans. Cheyenne will continue in operation through mid-2022...

Casper transition to PBS begins with addition of HTC nodes

March 4, 2021

The previously announced transition of the Casper cluster’s scheduler from Slurm to the PBS Pro workload manager will begin with the addition of 64 new high-throughput computing (HTC) nodes during the March 9-10 scheduled maintenance downtime. The HTC nodes will be accessible only through PBS Pro. The other Casper nodes will be transitioned to PBS Pro over the next several weeks according to th...

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.

Default Campaign Storage permissions changed

January 29, 2021 Updated: March 2, 2021

Based on strong user feedback, CISL has changed the default group write permissions on Campaign Storage directories. The changes were implemented on Wednesday, January 27. Previously, any user who was a member of a Campaign Storage directory’s POSIX group could overwrite or delete files in the directory even if they were not the files’ owner. This allowed valuable data to be inadvertently lost....

New NCAR supercomputer to be built by Hewlett Packard Enterprise

January 27, 2021 Updated: March 2, 2021

NCAR has announced that Hewlett Packard Enterprise (HPE) will build the next supercomputer to be installed at the NCAR-Wyoming Supercomputing Center in Cheyenne, Wyoming. The HPE Cray EX cluster will be delivered in the fall of 2021 and will become operational in early 2022. The 19.87-petaflops system, which NCAR plans to name soon, is expected to deliver about 3.5 times the scientific through...