CHPC - Research Computing Support for the University

In addition to deploying and operating high performance computational resources and providing advanced user support and training, CHPC serves as an expert team to broadly support the increasingly diverse research computing needs on campus. These needs include support for big data, big data movement, data analytics, security, virtual machines, Windows science application servers, protected environments for data mining and analysis of protected health information, and advanced networking.

CHPC Downtime: Thursday July 30th from 4 - 6 p.m


  • No network access to any CHPC resource
  • Network down in INSCC Building
  • Protected Environment VM farm will be down during this time window
  • No access to virtual machines or services running on virtual machines 
  • No access to CHPC file systems - (i.e. mounts to your desktop) 
  • No access to HPC Clusters - The clusters will stay up and scheduling jobs

Issues with mounting CHPC file systems from Windows and Macs desktops

RESOLVED: July 27, 2015

We have had reports of transient issues with users trying to connect to CHPC file systems from their windows and mac desktops.  We are working to troubleshoot the issue and will send another note when we either have resolved the issue or know more about the extent and the time to resolve.

Change in CHPC /scratch file system scrubbing policy

Files in /scratch will now be scrubbed based on atime (last accessed)  rather than mtime (last modified)

Schedule of Summer 2015 Presentations

Rocky Mountain Advanced Computing Consortium (RMACC)  HPC Symposium -- Aug 11-13

 News History...

Yellowstone Supervolcano

Imaging Magma Reservoir beneath Yellowstone Park

The supervolcano that lies beneath Yellowstone National Park is one of the world’s largest active volcanoes. University of Utah seismologists Fan-Chi Lin, Hsin-Hua Huang, Robert B. Smith and Jamie Farrell have used advanced seismic imaging techniques to develop a more complete view of the magma chamber beneath this supervolcano, extending the known range from 12 miles underground to 28 miles. For the study the researchers used new methods to combine the seismic information from two sources. Data from local quakes and shallower crust were provided by University of Utah Seismographic Stations surrounding Yellowstone. Information on the deeper structures was provided by the NSF-funded EarthScope array of seismometers across the US.

Their recent study, as reported in the May 15, 2015 issue of Science, reveals that along with the previously known upper magma chamber there is also a second previously unknown second reservoir that is deeper and nearly 5 times larger than the upper chamber, as depicted in the cross-section illustration which cuts from the southwest to the northeast under Yellowstone.  This study provides the first complete view of the plumbing system that supplies hot and partly molten rock from the Yellowstone hotspot to the Yellowstone supervolcano. Together these chambers have enough magma to fill the Grand Canyon nearly 14 times. Using resources at the Center for High Performance Computing, new 3D models are being developed to provide greater insight into the potential seismic and volcanic hazards presented by this supervolcano.

System Status

last update: 07/30/15 11:03 pm
General Nodes
system procs % util.
ember 576/1008 57.14%
kingspeak 796/812 98.03%
lonepeak 256/256 100%
Restricted Nodes
system procs % util.
ash 5648/6316 89.42%
apexarch 16/100 16%
ember 588/708 83.05%
kingspeak 2372/3656 64.88%
lonepeak 672/672 100%

Cluster Utilization