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Simmendinger, Christian and Jägersküpper, Jens and Machado, Rui and Lojewski, Carsten (2011) A PGAS-based Implementation for the Unstructured CFD Solver TAU. 5th Conference on Partitioned Global Address Space Programming Models, 2011-10-15 - 2011-10-18, Tremont House, Galveston Island, Texas, USA.
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Official URL: http://pgas11.rice.edu/papers/SimmendingerEtAl-CFD-Solver-TAU-PGAS11.pdf
Abstract
Whereas most applications in the realm of the partitioned global address space make use of PGAS languages we here demonstrate an implementation on top of a PGAS-API. In order to improve the scalability of the unstructured CFD solver TAU we have implemented an asynchronous communication strategy on top of the PGAS-API of GPI. We have replaced the bulk-synchronous two-sided MPI exchange with an asynchronous, RDMA-driven, one-sided communication pattern. We also have developed an asynchronous shared memory strategy for the TAU solver. We demonstrate that the corresponding implementation not only scales one order of magnitude higher than the original MPI implementation, but that it also outperforms the hybrid OpenMP/MPI programming model.
| Item URL in elib: | https://elib.dlr.de/72100/ | ||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||||||||||||||
| Title: | A PGAS-based Implementation for the Unstructured CFD Solver TAU | ||||||||||||||||||||
| Authors: |
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| Date: | 2011 | ||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||
| Series Name: | Conference Proceedings online | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| Keywords: | Computational Fluid Dynamics CFD, TAU, Communication libraries, Software for communication optimization, PGAS, GPI | ||||||||||||||||||||
| Event Title: | 5th Conference on Partitioned Global Address Space Programming Models | ||||||||||||||||||||
| Event Location: | Tremont House, Galveston Island, Texas, USA | ||||||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||||||
| Event Start Date: | 15 October 2011 | ||||||||||||||||||||
| Event End Date: | 18 October 2011 | ||||||||||||||||||||
| Organizer: | Rice University, Houston, Texas, USA | ||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||||||||||
| HGF - Program Themes: | Aircraft Research (old) | ||||||||||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||||||||||
| DLR - Program: | L AR - Aircraft Research | ||||||||||||||||||||
| DLR - Research theme (Project): | L - Simulation & Validation (old) | ||||||||||||||||||||
| Location: | Braunschweig | ||||||||||||||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > CASE | ||||||||||||||||||||
| Deposited By: | Jägersküpper, Dr.rer.nat. Jens | ||||||||||||||||||||
| Deposited On: | 30 Nov 2011 11:39 | ||||||||||||||||||||
| Last Modified: | 24 Apr 2024 19:37 |
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