Computational Science Simulations Based on Web Services

Abstract

Abstract.We describe the software architecture of a system for doing multiphysics simulation of a coupled fluid, thermal, and mechanical fracture problem. The system is organized as a collection of geographically-distributed software components in which each component provides a web service, and uses standard web-service protocols to interact with other components. The resulting system incorporates many features such as componentization and geographical distribution which we believe are vital to adaptive and dynamic data-driven application systems (DDDAS).

A distributed system based on web services for computational science simulations

“…To the best of our knowledge, this is the first system of its kind, with the basic system and initial performance being described in [9]. This testbed has enabled us to develop state-of-theart simulations without having to port codes between each other's machines.…”

O’SOAP – A Web Services Framework for DDDAS Applications

“…The components of this system were deployed on servers at Cornell Computer Science and the Engineering Research Center at Mississippi State University. All components were deployed using O'SOAP, except for one, which used SOAP::Clean [18,2], a predecessor of O'SOAP. All clients were developed using O'SOAP.…”

“…Other, less obvious, examples include large-scale loosely-coupled applications 1 developed by multi-institutional teams. Elsewhere [2,19], we have described the Adaptive Software Project (ASP) [11], a multi-institutional project that is developing multi-disciplinary simulation systems. What is unique about our systems is that they have been deployed as a geographically distributed set of application components.…”

“…the standard web service protocols (i.e., XML [21], SOAP [10], and WSDL [4]). While original developed for business applications, we have found that web services are ideally suited for building computations science applications as well 2 . Because these standardization efforts have led to the development of many interoperable systems for the deployment and use of web services, we believe that many future computational science and DDDAS applications will use web services to varying degrees.…”