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Performance Portability in Extreme Scale Computing (Dagstuhl Seminar 17431)

Authors: Anshu Dubey, Paul H. J. Kelly, Bernd Mohr, and Jeffrey S. Vetter

Published in: Dagstuhl Reports, Volume 7, Issue 10 (2018)


Abstract
This Dagstuhl Seminar represented a unique opportunity to bring together international experts from the three research communities essential to tackling the HPC performance portability challenge: developers of large-scale computational science software projects, researchers developing parallel programming technologies, and performance specialists. The major research questions for the seminar were to understand challenges, design metrics, and prioritize potential solutions for performance portability, management of data movement in complex applications, composability, and pathways to impact on the research community. The overall conclusion shared by all participants was that performance portability in extreme scale computing can be achieved, especially if parallel applications are designed with performance portability in mind from the beginning. Making legacy application performance portable still requires enormous efforts and expertise. In many instances it will likely require extensive refactoring.

Cite as

Anshu Dubey, Paul H. J. Kelly, Bernd Mohr, and Jeffrey S. Vetter. Performance Portability in Extreme Scale Computing (Dagstuhl Seminar 17431). In Dagstuhl Reports, Volume 7, Issue 10, pp. 84-110, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)


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@Article{dubey_et_al:DagRep.7.10.84,
  author =	{Dubey, Anshu and Kelly, Paul H. J. and Mohr, Bernd and Vetter, Jeffrey S.},
  title =	{{Performance Portability in Extreme Scale Computing (Dagstuhl Seminar 17431)}},
  pages =	{84--110},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2018},
  volume =	{7},
  number =	{10},
  editor =	{Dubey, Anshu and Kelly, Paul H. J. and Mohr, Bernd and Vetter, Jeffrey S.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagRep.7.10.84},
  URN =		{urn:nbn:de:0030-drops-86642},
  doi =		{10.4230/DagRep.7.10.84},
  annote =	{Keywords: Parallel programming, performance portability, productivity, scientific computing}
}
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