Nested Parallelization of the Flow Solver TFS Using the ParaWise Parallelization Environment

The Navier-Stokes Solver TFS developed by the Institute of Aerodynamics of the RWTH Aachen University is currently used in a multidisciplinary project to simulate the air flow through the human nose. In order to reduce the runtime of the expensive computations the Para Wise/CAPO automatic parallelization environment has been used to assist in the nested OpenMP parallelization of the TFS multiblock code targeted at Sun Microsystems shared memory parallel systems. Further manual tuning improved the scalability of the OpenMP approach.