Integrating MPI-Based Numerical Software into an Advanced Parallel Computing Environment

In this paper we present first experiences concerning the integration of MPI-based numerical software into an ad-vanced programming environment for building parallel and distributed high-performance applications, which is un-der development in the context of Italian national research projects. Such programming environment, named ASSIST, is based on a combination of the concepts of structured parallel programming and component-based programming. Some activities within the projects are devoted to the def-inition, implementation and testing of a methodology for the integration of a parallel numerical library into ASSIST. The goal is providing a set of efficient, accurate and re-liable tools that can be easily used as building blocks for high-performance scientific applications. We focus on the integration of existing and widely used MPI-based numeri-cal library modules. To this aim, we propose a general ap-proach to embed MPI computations into the ASSIST basic This work has been supported by the ASI-PQE2000 Programme De-velopment of Applications for Earth Observation with High-Performanc