# Optimization of FASTEST-3D for Modern Multicore Systems

@article{Scheit2013OptimizationOF, title={Optimization of FASTEST-3D for Modern Multicore Systems}, author={Christoph Scheit and Georg Hager and Jan Treibig and Stefan Becker and Gerhard Wellein}, journal={ArXiv}, year={2013}, volume={abs/1303.4538} }

FASTEST-3D is an MPI-parallel finite-volume flow solver based on block-structured meshes that has been developed at the University of Erlangen-Nuremberg since the early 1990s. It can be used to solve the laminar or turbulent incompressible Navier-Stokes equations. Up to now its scalability was strongly limited by a rather rigid communication infrastructure, which led to a dominance of MPI time already at small process counts.
This paper describes several optimizations to increase the… Expand

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