Efficient Portable Parallel Implementation of a Large Scale Air Pollution Model for Sensitivity Studies

Speaker: Dr. Tzvetan Ostromsky,

Affiliation: Bulgarian Academy of Sciences.

Date/Time: 29th January 2009, 13:00-14:00.

Location: Room G74, Philip Lyle Building.

Map: http://www.info.rdg.ac.uk/maps/maps-display.asp

Abstract:

The Danish Eulerian Model (DEM) is a powerful air pollution model, designed to calculate the concentrations of various dangerous species over a large geographical region (including Europe). This is a huge computational task and requires significant resources of storage and CPU time. Parallel computing is essential for the efficient practical use of the model. Scalability results on various powerful supercomputers will be shown.

Large number of experiments with the model has been carried out in order to test the sensitivity of the model to variation of some chemical rate constants. The obtained results are input data for variance-based sensitivity analysis. Its final results respectively may provide valuable information for verification of the model and for improvements in the chemical scheme of DEM.