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Efficient Parallelization of a ThreeDimensional NavierStokes Solver on MIMD Multiprocessors

Summary: Efficient Parallelization of a Three­Dimensional
Navier­Stokes Solver on MIMD Multiprocessors
To appear in Journal of Supercompuitng
A. Averbuch B. Epstein
School of Mathematical Sciences, Tel Aviv University, Tel Aviv 69978
L. Ioffe I. Yavneh
Faculty of Computer Science, Technion, Haifa 32000, Israel
We present an efficient parallelization strategy for speeding up the computation
of an high­accuracy 3­dimensional serial Navier­Stokes solver that treats turbulent
transonic high­Reynolds flows. The code solves the full compressible Navier­Stokes
equations and is applicable to realistic large size aerodynamic configurations and as
such requires huge computational resources in terms of computer memory and execu­
tion time. The solver can resolve the flow properly on relatively coarse grids. Since the
serial code contains a complex infrastructure typical for industrial code (which ensures
its flexibility and applicability to complex configurations), then the parallelization task
is not straightforward. We get scalable implementation on massively parallel machines
by maintaining efficiency at a fixed value by simultaneously increasing the number of
processors and the size of the problem.
The 3­D Navier­Stokes solver was implemented on three MIMD message­passing


Source: Averbuch, Amir - School of Computer Science, Tel Aviv University


Collections: Computer Technologies and Information Sciences