Workshop on problem-solving environments: findings and recommendations
ACM Computing Surveys (CSUR)
SCIRun: a scientific programming environment for computational steering
Supercomputing '95 Proceedings of the 1995 ACM/IEEE conference on Supercomputing
Advanced CORBA programming with C++
Advanced CORBA programming with C++
A wrapper generator for wrapping high performance legacy codes as Java/CORBA components
Proceedings of the 2000 ACM/IEEE conference on Supercomputing
WebFlow: A Framework for Web Based Metacomputing
HPCN Europe '99 Proceedings of the 7th International Conference on High-Performance Computing and Networking
Cobra: A CORBA-compliant Programming Environment for High-Performance Computing
Euro-Par '98 Proceedings of the 4th International Euro-Par Conference on Parallel Processing
Industrial Stochastic Simulations on a European Meta-Computer
Euro-Par '98 Proceedings of the 4th International Euro-Par Conference on Parallel Processing
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We have investigated aspects of the design of Problem Solving Environments (PSE) by constructing a prototype using CORBA as middleware. The two issues we are mainly concerned with are the use of non-trivial (containing more than just a {\tt start} method) CORBA interfaces for the computational components, and the provision of interactivity using the same mechanisms used for flow control. After describing the design decisions that allow us to investigate these issues, and contrasting them with alternatives, we describe the architecture of the prototype and its use in the context of a study of photonic materials. We argue that having several methods on a component interface can be used to mitigate performance problems that may arise when trying to solve problems in PSE's based on small components. We describe how our mechanism allows a high degree of computational steering over all components.