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Employing nested OpenMP for the parallelization of multi-zone computational fluid dynamics applications

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4 Author(s)
Ayguade, E. ; Comput. Archit. Dept., Centre Europeu de Parallelism de Barcelona, Spain ; Gonzalez Tallada, M. ; Martorell, X. ; Jost, G.

Summary form only given. We describe the parallelization of the multizone code versions of the NAS parallel benchmarks employing multilevel OpenMP parallelism. For our study we use the NanosCompiler, which supports nesting of OpenMP directives and provides clauses to control the grouping of threads, load balancing, and synchronization. We report the benchmark results, compare the timings with those of different hybrid parallelization paradigms and discuss OpenMP implementation issues which effect the performance of multilevel parallel applications.

Published in:

Parallel and Distributed Processing Symposium, 2004. Proceedings. 18th International

Date of Conference:

26-30 April 2004