A case study for automatic code generation on a coupled ocean-atmosphere model

Abstract

Traditional design and implementation of large atmospheric models is a difficult, tedious and erroneous task. With the Ctadel project we propose a new method of code generation, where the designer describes the model in an abstract high-level specification language which is translated into highly optimized Fortran code. In this paper we show the abilities of this method on a coupled ocean-atmosphere model, in which we have to deal with multi-resolution domains and different time-steps. We, briefly, describe a new concept in compiler design, the use of templates for code generation, to elevate the burden of choosing architecture optimized numerical routines. © 2002 Springer-Verlag Berlin Heidelberg.