Vectorization and parallelization of a production reactor assembly code |
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Authors: | Jasmina L. Vujic and William R. Martin |
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Affiliation: | Laboratory for Scientific Computation and the Department of Nuclear Engineering, The University of Michigan, Ann Arbor, MI 48109, U.S.A. |
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Abstract: | In order to efficiently use new features of supercomputers, production codes, usually written 10 – 20 years ago, must be tailored for modern computer architectures. We have chosen to optimize the CPM-2 code, a production reactor assembly code based on the collision probability transport method. Substantional speedups in the execution times were obtained with the parallel/vector version of the CPM-2 code. In addition, we have developed a new transfer probability method, which removes some of the modelling limitations of the collision probability method encoded in the CPM-2 code, and can fully utilize parallel/vector architecture of a multiprocessor IBM 3090. |
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