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Titel:

Vectorization and Minimization of Memory Footprint for Linear High-Order Discontinuous Galerkin Schemes

Dokumenttyp:
Konferenzbeitrag
Art des Konferenzbeitrags:
Textbeitrag / Aufsatz
Autor(en):
Jean-Matthieu Gallard; Leonhard Rannabauer; Anne Reinarz; Michael Bader
Abstract:
We present a sequence of optimizations to the performance-critical compute kernels of the high-order discontinuous Galerkin solver of the hyperbolic PDE engine ExaHyPE -- successively tackling bottlenecks due to SIMD operations, cache hierarchies and restrictions in the software design. Starting from a generic scalar implementation of the numerical scheme, our first optimized variant applies state-of-the-art optimization techniques by vectorizing loops, improving the data layout and using L...     »
Horizon 2020:
supported by Horizon 2020 project nr. 671698 project name ExaHyPE and project nr. 823844 project name ChEESE
Kongress- / Buchtitel:
The 21st IEEE International Workshop on Parallel and Distributed Scientific and Engineering Computing (PDSEC-2020)
Jahr:
2020
Quartal:
1. Quartal
Jahr / Monat:
2020-02
Monat:
Feb
Reviewed:
ja
Sprache:
en
Volltext / DOI:
doi:10.1109/IPDPSW50202.2020.00126
WWW:
https://doi.ieeecomputersociety.org/10.1109/IPDPSW50202.2020.00126
TUM Einrichtung:
Department of Informatics
 BibTeX