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.

No system downtimes for week of June 12 -16

June 9, 2023

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

Degraded Cheyenne network performance requiring near-term maintenance

June 5, 2023

The Cheyenne Infiniband high-speed network has suffered two failed switches as a result of cooling system problems that will require a system outage in order for the vendor to repair and replace. The dates for this outage are currently being planned. We expect the outage will require 3-5 days effort and will occur no earlier than 3 weeks from now. If users have any flexibility to defer runnin...

Derecho weekly update

June 5, 2023

Derecho’s Acceptance Test Phase (ATP) continued last week and the project reached a milestone when Accelerated Scientific Discovery (ASD) users were given access to the system on June 1 to begin building and running their models. While the vast majority of the benchmark results meet or exceed expectations, and the cumulative performance is meeting the required 3.5 CSEP metric, CISL continues to...

Submit an abstract by August 1 for the November Correctness Workshop

June 2, 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 NCAR’s Mesa Laboratory in Boulder, Colorado, and virtually. We are soliciting talks related, but not limited to, the following topics: • Tools and approaches for software testing, debugging, quality assurance, and ...

No system downtimes for week of June 5 - 9

June 2, 2023

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

Derecho weekly update

June 1, 2023

Derecho’s Acceptance Test Phase (ATP) was resumed after CISL and HPE engineers significantly reduced job performance variability through some tuning and configuration changes. Additionally, HPE and CISL have been able to maintain an availability of 98% for the compute resources during this testing phase. While the vast majority of the benchmark results meet or exceed expectations, CISL is worki...