XML-based workflow description language for grid applications

Abstract

In Grid computing PSE is essential for developing parallel and distributed applications in various computation intensive areas. The workflow-based PSE supports the coordinated execution of multiple application tasks on distributed Grid resources by enabling users to describe a workflow by composing many existing grid services or new functions. In this paper, we propose a new workflow model which consists of powerful workflow patterns efficiently used to represent various parallelisms inherent in parallel and distributed applications. It also provides an integrated scheme which represents data and control flows simultaneously. Also, we present an XML based Grid workflow description language(GWDL) which efficiently reflects our proposed workflow model.