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.

New Casper HTC nodes ready for PBS jobs

March 17, 2021

The Casper cluster now has 64 new high-throughput computing (HTC) nodes, which are for batch jobs that require the use of one full node or less. As the first step in migrating the Casper system’s scheduler from Slurm to the PBS Pro workload manager, the HTC nodes are accessible only through PBS Pro. This new documentation provides details for preparing PBS scripts and submitting jobs on Casper:...

April 6-7 XSEDE workshop: Big Data and Machine Learning

March 16, 2021

XSEDE and the Pittsburgh Supercomputing Center will present a two-day Big Data and Machine Learning workshop April 6-7. The virtual workshop will focus on topics such as Hadoop and Spark See the XSEDE announcement for the schedule, tentative agenda, and a link to the registration portal.

No downtime scheduled for week of March 15 - 22

March 15, 2021

No downtime scheduled for Cheyenne, Casper, HPSS, Campaign Storage, Quasar, or Stratus.

HPC systems returned to service

March 12, 2021

The Cheyenne and Casper clusters, GLADE file systems, Campaign Storage, data-access nodes, HPSS, and JupyterHub services have been returned to service following unexpected problems that developed during this week’s maintenance downtime. CISL staff and the vendor, Mellanox, worked late into the night to restore the systems to production. The high-throughput computing (HTC) nodes being added to ...

Starting Casper Jobs with PBS Pro: March 30 tutorial

March 12, 2021

The Casper system is switching from the Slurm scheduler to PBS Pro, which means workflow changes for the majority of users. To help with the transition, the CISL Consulting Services Group will present an online tutorial at 9 a.m. MDT on Tuesday, March 30. The tutorial will cover a variety of PBS Pro scheduling topics for Casper users. Users who have experience with PBS on Cheyenne are encourage...

Delay in returning HPC systems to service

March 11, 2021

Most of the maintenance work scheduled for Wednesday on HPC systems at the NCAR-Wyoming Supercomputing Center went as expected, but unexpected problems encountered while restoring network components have prevented returning the systems to service on schedule. CISL staff and the vendor, Mellanox, worked late into the night and resolved the primary issue. Additional work and testing will continue...