Comparing Linux Clusters for the Community Climate Systems Model (2004)

Project Collaborators

Project Overview

In the fall of 2004, we examined the performance of two components of the NCAR Community Climate System Model (CCSM) executing on clusters with a variety of microprocessor architectures and interconnects. Specifically, we examined the execution time and scalability of the Community Atmospheric Model (CAM) and the Parallel Ocean Program (POP) on Linux clusters with Intel Xeon and AMD Opteron processors, using Dolphin, Myrinet, and Infiniband interconnects, and compared the performance of the cluster systems to an SGI Altix and an IBM p690 supercomputer. Of the architectures examined, clusters constructed using AMD Opteron processors generally demonstrated the best performance, outperforming Xeon clusters and occasionally an IBM p690 supercomputer in simulated years per day.

More information about this project can be found at:

Related Papers and Files

  1. M. Woitaszek, M. Oberg, and H.M. Tufo, "Comparing Linux Clusters for the Community Climate Systems Model", proceedings of the 5th LCI International Conference on Linux Clusters: The HPC Revolution, 2004.