© 2008 by the Rector and Visitors of the University of Virginia.

The information contained on the University of Virginia’s Department of Information Technology and Communication (ITC) website is provided as a public service with the understanding that ITC makes no representations or warranties, either expressed or implied, concerning the accuracy, completeness, reliability or suitability of the information, including warrantees of title, non-infringement of copyright or patent rights of others. These pages are expected to represent the University of Virginia community and the State of Virginia in a professional manner in accordance with the University of Virginia’s Computing Policies.

ITCWeb: Linux Clusters ITC Linux Clusters

ITC has three Linux-based commodity clusters, Cedar, Dogwood, and Elder. Each cluster has its own homepage:

Cedar Cedar is a general-purpose cluster consisting of 125 nodes, with two AMD Opteron cpus and 2GB of RAM per node. The interconnect is GigE.

Dogwood Dogwood is a general-purpose cluster consisting of 200 nodes, with two Intel EMT cpus and 3GB of RAM per node. The interconnect is GigE. The number of simultaneous jobs per user is more limited on Dogwood than on Cedar in order to prevent parallel jobs from waiting an excessive time.

Elder Elder is a large-memory cluster consisting of 12 nodes, each containing one 3-GHz Intel dual-core Xeon cpu with 32GB of RAM per node. The interconnect is GigE.

Users can access these clusters if they have a research computing enabled account.

All ITC Linux clusters are queue-controlled via the PBS Pro queueing system. New users should read the Getting Started Guide for information about utilizing the clusters via the queueing system.

New users should also consider working through the hands-on tutorial.

For advanced users, more details about the PBS system may be found in the PBS User's Guide.

Anyone considering their own purchase of a Linux cluster are invited to consider the purchase of nodes on an ITC Linux cluster instead. ITC has a program that enables researchers to purchase nodes in a Linux cluster that ITC houses and maintains for a three-year period. Details about this program are available from www.itc.virginia.edu/research/itc-clusters.

If you have any questions about these Linux clusters or research computing support in general, please contact us either by emailing Res-Consult@Virginia.EDU telephoning the Research Computing Lab in the Charles L. Brown Science & Engineering Library at 243-8799 or Scholars' Lab in Alderman Library at 243-8800.