Benchmarking Parallel I/O Performance for Computational Fluid Dynamics Applications
Parimala Pakalapati, Thomas Häuser · 43rd AIAA Aerospace Sciences Meeting and Exhibit · 2005
Linux clusters can provide a viable and more cost effective alternative to conventional supercomputers for the purposes of computational fluid dynamics (CFD). In some cases, the Linux supercluster is replacing the conventional supercomputer as a large-scale, shared-use machine. In other cases, smaller clusters are providing dedicated platforms for CFD computations. One important, often overlooked, issue for large, three dimensional time-dependent simulations is the input and output performance of the CFD solver. The development of the CFD General Notation System (CGNS) (see) has brought a standardized and robust data format to the CFD community, enabling the exchange of information between the various stages of numerical simulations. This paper presents attional benchmarks results of the parallel I/O performance of a proposed parallel CGNS extension.