Wrapping MPI-based legacy codes as Java/CORBA components

Li, Maozhen, Rana, Omer Farooq ORCID: https://orcid.org/0000-0003-3597-2646 and Walker, David William ORCID: https://orcid.org/0000-0002-1360-6330 2001. Wrapping MPI-based legacy codes as Java/CORBA components. Future Generation Computer Systems 18 (2) , pp. 213-223. 10.1016/S0167-739X(00)00093-5

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Abstract

Techniques for wrapping an MPI-based molecular dynamics (MD) simulation code as Java/CORBA components, for use within a distributed component based problem solving environment (CB-PSE), is presented. A legacy code for simulating a Lennard–Jones fluid is first wrapped as a single CORBA object, followed by division of the code into computational sub-units, where each sub-unit is wrapped as a CORBA object containing MPI calls, and run on a cluster of workstations — enabling different MPI implementations to inter-operate. Using a Java implementation, users can submit simulation tasks through a Web based interface, without needing to know implementation details of the legacy code, or the exact interaction between sub-units within the code. We provide performance comparisons of wrapping the entire MD code as a single object versus wrapping sub-units within it, and offer a simple performance model to explain our findings.

Item Type:	Article
Status:	Published
Schools:	Schools > Computer Science & Informatics
Subjects:	Q Science > QA Mathematics > QA75 Electronic computers. Computer science Q Science > QA Mathematics > QA76 Computer software
Uncontrolled Keywords:	Problem solving environments ; Java/CORBA components ; Legacy code wrappers ; Distributed parallel computing
ISSN:	0167739X
Last Modified:	10 Sep 2025 21:51
URI:	https://orca.cardiff.ac.uk/id/eprint/6863

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