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Baldan, Giacomo und Borell, Ricard und Jägersküpper, Jens (2022) A Runtime-Based Dynamic Mesh-Partitioning Approach. The 8th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS Congress 2022, 5.-9. Juni 2022, Oslo, Norwegen.
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Kurzfassung
Large-scale parallel numerical simulations are fundamental for the understanding of a wide variety of aeronautical problems. Mesh decomposition is applied to make use of parallel hardware. In particular, when using a massively parallel architecture, not only the final quality of the mesh subdivision is relevant. Also the partitioning algorithm itself needs to be robust as well as efficient. A strategy for dynamic mesh partitioning based on runtime measurements is presented. We integrate the "Geometric Mesh Partitioner" (GeMPa), which is a partitioning library based on Hilbert Space-Filling Curve (HSFC), in the FlowSimulator (FS) software. FS is a platform designed to run multi-disciplinary simulations on massively parallel cluster architectures. The algorithm performance is evaluated on an unstructured mesh representing the ONERA M6 wing. In particular, the load imbalance among processes is evaluated and compared with a well-known graph-based partitioning approach. Finally, we analyze how the number of processes influences the load imbalance.
| elib-URL des Eintrags: | https://elib.dlr.de/189591/ | ||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||
| Titel: | A Runtime-Based Dynamic Mesh-Partitioning Approach | ||||||||||||||||
| Autoren: |
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| Datum: | Juni 2022 | ||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||
| Open Access: | Nein | ||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||
| Stichwörter: | Mesh Partitioning, Space Filling Curves, High Performance Computing (HPC), Computational Fluid Dynamics (CFD) | ||||||||||||||||
| Veranstaltungstitel: | The 8th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS Congress 2022 | ||||||||||||||||
| Veranstaltungsort: | Oslo, Norwegen | ||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||
| Veranstaltungsdatum: | 5.-9. Juni 2022 | ||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||
| HGF - Programmthema: | Effizientes Luftfahrzeug | ||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||
| DLR - Forschungsgebiet: | L EV - Effizientes Luftfahrzeug | ||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Digitale Technologien | ||||||||||||||||
| Standort: | Braunschweig | ||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > CASE, BS | ||||||||||||||||
| Hinterlegt von: | Jägersküpper, Dr.rer.nat. Jens | ||||||||||||||||
| Hinterlegt am: | 02 Nov 2022 12:22 | ||||||||||||||||
| Letzte Änderung: | 06 Dez 2022 11:37 |
Verfügbare Versionen dieses Eintrags
- A Runtime-Based Dynamic Mesh-Partitioning Approach. (deposited 02 Nov 2022 12:22) [Gegenwärtig angezeigt]
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