The CTADEL Application Driver for Numerical Weather Forecast Systems

The CTADEL Code-generation Tool for Applications based on Differential Equations using high-level Language specifications is a software environment for generating multi-platform high-performance codes for partial differential equations based problems. The CTADEL system is used as an application driver for the HIRLAM numerical weather forecast system. As such, the CTADEL system can be viewed as a problem-solving environment. With the aid of the CTADEL application driver, efficient High Performance Fortran and Fortran 77 codes with message passing primitives for shared (virtual) and distributed memory parallel computer architectures have been generated from a high-level language specification of the dynamics of the HIRLAM weather forecast model. INTRODUCTION The HIRLAM weather forecast system [8] is a so-called limited area weather forecast system in operational use at several European countries. To automatically generate efficient codes for the HIRLAM system we have developed the CTAD..