Daily Bulletin

Where to run small, CPU-only jobs?

March 16, 2023

CISL recommends running small jobs that use only CPUs on the Casper cluster’s high-throughput computing (HTC) nodes. Casper has 64 HTC nodes specifically for running small batch jobs. It also has:

  • More shared resources than the Cheyenne share queue.
  • A far higher concurrent-use limit for CPU cores than Cheyenne: 468 vs. 36.
  • More available memory, plus NVMe swap for overflow and local storage.

See Starting Casper jobs with PBS for an example of how to run a job on the HTC nodes as well as how to use the NVMe features.

© 2024 UCAR
Postal Address: P.O. Box 3000, Boulder, CO 80307-3000 • Shipping Address: 3090 Center Green Drive, Boulder, CO 80301
National Science Foundation
This material is based upon work supported by the National Center for Atmospheric Research, a major facility sponsored by 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.