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APPLYING PARMETIS TO STRUCTURED REMESHING FOR INDUSTRIAL CFD APPLICATIONS

By François Guibault and Robert RoySébastien Laflamme, Julien Dompierre, Sébastien Laflamme, Julien Dompierre, François Guibault and Robert Roy

Abstract

This paper presents the current strategy used in IP-OORT, an ongoing project to extend the application domain of a C++ toolkit library for iterative mesh adaptation. OORT is a class library for sequential structured, unstructured and hybrid mesh adaptation used mainly in the context of CFD computations, that performs iterative mesh refinement, coarsening and smoothing in 3D. Extensions to parallelize mesh adaptation using PARMETIS for domain decomposition and MPI high-level communication schemes are investigated here. Numerical simulations on realistic cases show that the parallel strategy scales with problem size and the number of processors, but singular behaviors are sometimes encountered at subdomain interfaces when conflicting instructions collide

Topics: Key Words, Mesh Adaptation, High Performance Computing, MPI, ParMetis, Vertex Relocation, Load-Balancing The
Year: 2008
OAI identifier: oai:CiteSeerX.psu:10.1.1.134.2631
Provided by: CiteSeerX
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