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NAMD: A Case Study in Multilingual Parallel Programming
| Laxmikant Kale | Milind Bhandarkar | Robert Brunner | Neal Krawetz | J. Philips | Aritomo Shinozaki
Workshop on Languages and Compilers for Parallel Computing (LCPC) 1997
Publication Type: Paper
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Parallel languages are tools for constructing efficient application programs, while reducing the required labor. In this light, using the most appropriate tool for each component of a complex system seems natural, resulting in multi-paradigm multilingual programming. The Converse system developed at Illinois addresses the issues involved in supporting multilingual applications. This paper describes the development of a large parallel application in Computational Biophysics from the point of view of multilingual programming. NAMD, a molecular dynamics program, is implemented using three different ``paradigms'': Parallel message-driven objects, Message-Passing, and Multithreading. The issues faced in implementing such a system, and the advantages of multilingual approach are discussed. NAMD is already operational on many parallel machines. Some preliminary performance results are presented and the lessons learned from this experience are discussed.
L. V. Kale and Milind Bhandarkar and Robert Brunner and N. Krawetz and J. Phillips and A. Shinozaki, "NAMD: A Case Study in Multilingual Parallel Programming", Department of Computer Science and Theoretical Biophysics Group, Beckman Institute, University of Illinois at Urbana-Champaign, Proc. 10th International Workshop on Languages and Compilers for Parallel Computing, Minneapolis, Minnesota, August 1997.
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