NAVAIR Weapons Division Point Mugu acquires Scali cluster for MM5 modellingOslo 05 March 2002 A 9 node TeraRack from Scali has been installed at the Geophysics Branch of the Naval Air Systems Command Weapons Division at Point Mugu in California.
The cluster runs the MM5 model from the National Center for Atmospheric Research and Pennsylvania State University. NAVAIR WD Geophysics is using MM5 to provide inputs for air quality modelling. The cluster combines Dell PowerEdge 1550 nodes with Scali's network technology, SCI, and Scali's native superior performance MPI implementation - ScaMPI.
Scali's single system image management system - Universe, is used to make the cluster appear as a single machine. ScaMPI is a thread-safe implementation of MPI, and this allows MM5 on Scali clusters to combine MPI and OpenMP. This increases the performance of MM5 with 15-20 percent compared to an MPI approach alone.
The Geophysics Branch at the Weapons Division is working under the Navy Pollution Abatement Ashore Technology Demonstration/Validation Programme on an air pollution modelling project to evaluate approaches for addressing air pollutant transport/dispersion questions involving Navy installations and operations. The main thrust of this effort is to acquire, implement and test the EPA Models-3 air pollution modelling system which utilises MM5 to provide meteorological inputs.
More information about the EPA Models-3 air pollution modelling system is available at http://www.epa.gov/asmdnerl/models3/.
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