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Performance portability of an intermediate-complexity atmospheric research model in coarray Fortran

Authors:

Damian Rouson,

Ethan D. Gutmann,

Alessandro Fanfarillo,

Brian FriesenAuthors Info & Claims

PAW17: Proceedings of the Second Annual PGAS Applications Workshop

Article No.: 4, Pages 1 - 4

https://doi.org/10.1145/3144779.3169104

Published: 12 November 2017 Publication History

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Abstract

We examine the scalability and performance of an open-source, coarray Fortran (CAF) mini-application (mini-app) that implements the parallel, numerical algorithms that dominate the execution of The Intermediate Complexity Atmospheric Research (ICAR) [4] model developed at the the National Center for Atmospheric Research (NCAR). The Fortran 2008 mini-app includes one Fortran 2008 implementation of a collective subroutine defined in the Committee Draft of the upcoming Fortran 2018 standard. The ability of CAF to run atop various communication layers and the increasing CAF compiler availability facilitated evaluating several compilers, runtime libraries and hardware platforms. Results are presented for the GNU and Cray compilers, each of which offers different parallel runtime libraries employing one or more communication layers, including MPI, OpenSHMEM, and proprietary alternatives. We study performance on multi- and many-core processors in distributed memory. The results show promising scaling across a range of hardware, compiler, and runtime choices on up to ~100,000 cores.

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Mower RGutmann EListon GLundquist JRasmussen S(2024)Parallel SnowModel (v1.0): a parallel implementation of a distributed snow-evolution modeling system (SnowModel)Geoscientific Model Development10.5194/gmd-17-4135-202417:10(4135-4154)Online publication date: 22-May-2024
https://doi.org/10.5194/gmd-17-4135-2024
Guo PWu J(2018)One-Sided Communication in Coarray Fortran: Performance Tests on TH-1AAlgorithms and Architectures for Parallel Processing10.1007/978-3-030-05063-4_3(21-33)Online publication date: 7-Dec-2018
https://doi.org/10.1007/978-3-030-05063-4_3

Index Terms

Performance portability of an intermediate-complexity atmospheric research model in coarray Fortran
1. Applied computing
  1. Physical sciences and engineering
    1. Earth and atmospheric sciences
      1. Environmental sciences
2. Software and its engineering
  1. Software notations and tools
    1. General programming languages
      1. Language types
        Parallel programming languages

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PAW17: Proceedings of the Second Annual PGAS Applications Workshop

November 2017

39 pages

ISBN:9781450351232

DOI:10.1145/3144779

Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for third-party components of this work must be honored. For all other uses, contact the Owner/Author.

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Published: 12 November 2017

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Mower RGutmann EListon GLundquist JRasmussen S(2024)Parallel SnowModel (v1.0): a parallel implementation of a distributed snow-evolution modeling system (SnowModel)Geoscientific Model Development10.5194/gmd-17-4135-202417:10(4135-4154)Online publication date: 22-May-2024
https://doi.org/10.5194/gmd-17-4135-2024
Guo PWu J(2018)One-Sided Communication in Coarray Fortran: Performance Tests on TH-1AAlgorithms and Architectures for Parallel Processing10.1007/978-3-030-05063-4_3(21-33)Online publication date: 7-Dec-2018
https://doi.org/10.1007/978-3-030-05063-4_3

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Portable, MPI-interoperable coarray fortran

Portable, MPI-interoperable coarray fortran

Hiding latency in Coarray Fortran 2.0

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