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Hofmann, Michael ; Kiesel, Robert ; Leichsenring, Dirk ; Rünger, Gudula:
A Hybrid CPU/GPU Implementation of Computationally Intensive Particle Simulations Using OpenCL.
In:
17th International Symposium on Parallel and Distributed Computing (ISPDC 2018). -
Geneva
: IEEE
,
2018
. - S. 9-16
ISBN 978-1-5386-5330-2
DOI: https://doi.org/10.1109/ISPDC2018.2018.00011
Abstract
Particle simulations are popular methods in computational science in areas, such as biology, chemistry, or astrophysics, in which the interaction of particles plays a major role. Efficient implementations of particle simulations often exploit a separation of computations by a cutoff radius. The pairwise interactions between particles are then computed only within the cutoff radius while interactions beyond the cutoff radius might be neglected or computed approximately. Thus, the efficient implementation of the calculations within the cutoff radius can be crucial for an overall efficiency. In this article, we study these computationally intensive inner cutoff radius calculations and propose a portable parallel implementation on a hybrid CPU/GPU architecture. Especially, we have chosen particle methods from the ScaFaCoS library and have implemented a parallel version of the cutoff-based algorithm in OpenCL. Performance results are shown for two different solvers of the ScaFaCoS library. The influences of the particle distribution and the utilized hardware are investigated.
Weitere Angaben
| Publikationsform: | Aufsatz in einem Buch |
|---|---|
| Begutachteter Beitrag: | Ja |
| Institutionen der Universität: | Fakultäten > Fakultät für Mathematik, Physik und Informatik > Institut für Informatik > Lehrstuhl Angewandte Informatik II > Lehrstuhl Angewandte Informatik II - Univ.-Prof. Dr. Thomas Rauber Fakultäten Fakultäten > Fakultät für Mathematik, Physik und Informatik Fakultäten > Fakultät für Mathematik, Physik und Informatik > Institut für Informatik Fakultäten > Fakultät für Mathematik, Physik und Informatik > Institut für Informatik > Lehrstuhl Angewandte Informatik II |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 000 Informatik,Informationswissenschaft, allgemeine Werke > 004 Informatik |
| Eingestellt am: | 10 Aug 2021 13:11 |
| Letzte Änderung: | 10 Aug 2021 13:11 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/66755 |