TY - GEN
T1 - CGNS I/O performance on parallel file systems
AU - Hauser, Thomas
AU - Horne, Kyle
PY - 2010
Y1 - 2010
N2 - One important, often overlooked, issue for large, three dimensional time-dependent computational fluid dynamics (CFD) simulations is the input and output performance of the CFD solver, especially for large time-dependent simulations. The development of the CFD General Notation System (CGNS) has brought a standardized and robust data format to the CFD community, enabling the exchange of information between the various stages of numerical simulations. Application of this standard data format to large parallel simulations is hindered by the reliance of most applications on the CGNS Mid-Level library. This library has only supported serialized I/O. By moving to HDF5 as the recommended low level data storage format, the CGNS standards committee has created the opportunity to support parallel I/O. In our work, we present the parallel implementation of the CGNS Mid-Level library and detailed benchmarks on parallel file systems for typical structured and unstructured CFD applications.
AB - One important, often overlooked, issue for large, three dimensional time-dependent computational fluid dynamics (CFD) simulations is the input and output performance of the CFD solver, especially for large time-dependent simulations. The development of the CFD General Notation System (CGNS) has brought a standardized and robust data format to the CFD community, enabling the exchange of information between the various stages of numerical simulations. Application of this standard data format to large parallel simulations is hindered by the reliance of most applications on the CGNS Mid-Level library. This library has only supported serialized I/O. By moving to HDF5 as the recommended low level data storage format, the CGNS standards committee has created the opportunity to support parallel I/O. In our work, we present the parallel implementation of the CGNS Mid-Level library and detailed benchmarks on parallel file systems for typical structured and unstructured CFD applications.
UR - https://www.scopus.com/pages/publications/78649968382
U2 - 10.2514/6.2010-1057
DO - 10.2514/6.2010-1057
M3 - Conference contribution
AN - SCOPUS:78649968382
SN - 9781600867392
T3 - 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
BT - 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
PB - American Institute of Aeronautics and Astronautics Inc.
ER -