Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 9, issue 8
Articles | Volume 9, issue 8
https://doi.org/10.5194/gmd-9-2881-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/gmd-9-2881-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 9, issue 8
Development and technical paper
 | 
26 Aug 2016
Development and technical paper |  | 26 Aug 2016

Asynchronous communication in spectral-element and discontinuous Galerkin methods for atmospheric dynamics – a case study using the High-Order Methods Modeling Environment (HOMME-homme_dg_branch)

Benjamin F. Jamroz and Robert Klöfkorn

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Short summary
The scalability of computational applications on current and next-generation supercomputers is increasingly limited by the cost of inter-process communication. We implement communication hiding data exchange in the High-Order Methods Modeling Environment (HOMME) for the time integration of the hydrostatic fluid equations using both the spectral-element and discontinuous Galerkin methods. The presented approach produces significant performance and scalability gains in large-scale simulations.
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