Real world workflow applications in the Askalon grid environment

Abstract

The workflow paradigm is widely considered as an important class of truly distributed Grid applications which poses many challenges for a Grid computing environment. Still to this time, rather few real-world applications have been successfully ported as Grid-enabled workflows. We present the Askalon programming and computing environment for the Grid which comprises a high-level abstract workflow language and a sophisticated service-oriented runtime environment including meta-scheduling, performance monitoring and analysis, and resource brokerage services. We demonstrate the development of a real-world river modelling distributed workflow system in the Askalon environment that harnesses the computational power of multiple Grid sites to optimise the overall execution time. © Springer-Verlag Berlin Heidelberg 2005.