Publication: Benchmarking of a 3D, Unstructured, Finite Volume Code of Incompressible Navier-Stokes equation on a Cluster of Distributed-Memory Computers

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Title	Benchmarking of a 3D, Unstructured, Finite Volume Code of Incompressible Navier-Stokes equation on a Cluster of Distributed-Memory Computers
Authors/Editors*	S.A. Mohsen Karimian, Anthony G. Straatman
Where published*	HPCS 2005
How published*	Proceedings
Year*	2005
Volume	0
Number	0
Pages	11-16
Publisher	IEEE
Keywords
Link	http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=1430046
Abstract	The parallelization and performance of an implicit, unstructured, time-dependent Computational Fluid Dynamics (CFD) code is described. Parallelization of the code is done within the PETSc framework using a single-program-multiple-data (SPMD) message passing model. The parallel code is shown to scale linearly within the limit of the available number of processors. A dynamic convergence criteria (DCC) is developed to enhance the performance of the code by linking the non-linear convergence of the code and the solver convergence. With an appropriate choice of DCC, the code is observed to obtain a identical-quality solution in less than 1/4 the total computational time.