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Document type:
Konferenzbeitrag 
Contribution type:
Textbeitrag / Aufsatz 
Author(s):
Jean-Matthieu Gallard; Leonhard Rannabauer; Anne Reinarz; Michael Bader 
Title:
Vectorization and Minimization of Memory Footprint for Linear High-Order Discontinuous Galerkin Schemes 
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 usin...    »
 
Horizon 2020:
supported by Horizon 2020 project nr. 671698 project name ExaHyPE and project nr. 823844 project name ChEESE 
Book / Congress title:
The 21st IEEE International Workshop on Parallel and Distributed Scientific and Engineering Computing (PDSEC-2020) 
Year:
2020 
Quarter:
1. Quartal 
Year / month:
2020-02 
Month:
Feb 
Reviewed:
ja 
Language:
en 
TUM Institution:
Department of Informatics