WIT Press


An Atmosphere-ocean Model: Code Optimization And Application To El Nino

Price

Free (open access)

Paper DOI

10.2495/ENV000241

Volume

41

Pages

10

Published

2000

Size

1,095 kb

Author(s)

C.R. Mechoso, J.D. Farrara, L.A. Drummond, J. Spahr & J.-Y. Yu

Abstract

The top of the hierarchy of numerical models used for research and prediction of climate variability (e.g., El Nino and anthropogenic climate change) is occupied by general circulation models of the coupled atmosphere-ocean system. These are large codes characterized by heterogeneous components and diverse algorithms. This paper presents methods to overcome two major obstacles to performance efficiency when the application runs in a multi-processor environment: balancing of the computing load among processors and data transfers among model components. The power of these methods is illustrated in the context of the model developed at the University of California, Los Angeles. An example of El Nino simulated by that model is presented. 1 Introduction

Keywords