Resources overview

Cheyenne | Data analysis and visualization | GLADE | Campaign Storage | HPSS

These NCAR supercomputing, data storage, and archive systems support the development of climate models, weather forecasting, and other critical research.

Access to these resources is available through several allocation opportunities. In general, researchers who are supported by the National Science Foundation to pursue work in the atmospheric sciences or computational science in support of the atmospheric sciences are eligible to apply.

Cheyenne: High-performance computing resource

Cheyenne is a 5.34-petaflops, high-performance computer built for NCAR by SGI. The hardware was delivered in September 2016 at the NCAR-Wyoming Supercomputing Center (NWSC) and became operational at the beginning of 2017. An SGI ICE XA Cluster, the Cheyenne supercomputer features 145,152 latest-generation Intel Xeon processor cores in 4,032 dual-socket nodes (36 cores/node) and 313 TB of total memory. It is a critical tool for researchers across the country studying climate change, severe weather, geomagnetic storms, seismic activity, air quality, wildfires, and other important geoscience topics.

See Cheyenne system documentation.

Data analysis and visualization systems

The Casper cluster is a heterogeneous system of specialized DAV resources and large-memory, multi-GPU nodes. In addition to nodes configured for analysis and visualization, it includes others that feature large-memory, dense GPU configurations to support explorations in machine learning (ML) and deep learning (DL) in atmospheric and related sciences.

Casper is the successor to the Geyser and Caldera systems, which were decommissioned at the end of 2018 after nearly six years of service.

See Casper documentation.

GLADE: Centralized file systems and data storage

This central file and data storage resource consists of file system servers and storage devices that are shared by the Cheyenne system and the Casper nodes. The centralized file systems allow scientists to generate model output on the supercomputer, then analyze or visualize it on data analysis and visualization nodes without needing to move data between clusters.

See GLADE system documentation.

Campaign Storage

The NCAR Campaign Storage file system is intended for use by the NCAR labs and universities as space for storing project data on publication timescales. The disk-based system has a five-year data-retention policy.

See Campaign Storage.

HPSS: NCAR data archive