Casper

The Casper cluster is a heterogeneous system of specialized data analysis and visualization resources and large-memory, multi-GPU nodes. Casper is the successor to the Geyser and Caldera clusters, which were decommissioned at the end of 2018.

NCAR's Casper system, procured from PCPC Direct, Ltd., consists of a total of 26 Supermicro nodes featuring Intel Skylake processors.

• 22 Supermicro SuperWorkstation nodes are used for data analysis and visualization jobs. Each node has 36 cores and up to 384 GB of memory. Nine of the nodes also feature an NVIDIA GPU.
• 4 additional nodes feature large-memory, dense GPU configurations to support explorations in machine learning (ML) and deep learning (DL) in atmospheric and related sciences.

See the hardware table below for more detailed specifications.

Job scheduler: Users run jobs on the Casper cluster by logging in to Cheyenne and submitting them with the Slurm Workload Manager.

Operating system: CentOS 7

Hardware