articleThe Journal of Chemical PhysicsApr 17, 2020GREEN OA

Q uantum ESPRESSO toward the exascale

PGPaolo GiannozziOBOscar BaseggioPBPietro BonfàDBDavide BrunatoRCRoberto Car

University of Udine · Istituto Officina dei Materiali · +7 more institutions

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Indexed inarxivcrossrefpubmed

Abstract

Quantum ESPRESSO is an open-source distribution of computer codes for quantum-mechanical materials modeling, based on density-functional theory, pseudopotentials, and plane waves, and renowned for its performance on a wide range of hardware architectures, from laptops to massively parallel computers, as well as for the breadth of its applications. In this paper, we present a motivation and brief review of the ongoing effort to port Quantum ESPRESSO onto heterogeneous architectures based on hardware accelerators, which will overcome the energy constraints that are currently hindering the way toward exascale computing.

Citation impact

1,900
total citations
FWCI
110.99
Percentile
100%
References
68
Citations per year

Authors

15
  • PG
    Paolo GiannozziCorresponding

    University of Udine, Istituto Officina dei Materiali, Cambridge Quantum Computing (United Kingdom)

  • OB
    Oscar Baseggio

    Scuola Internazionale Superiore di Studi Avanzati

  • PB
    Pietro Bonfà

    University of Parma, Istituto Nanoscienze

  • DB
    Davide Brunato

    Scuola Internazionale Superiore di Studi Avanzati

  • RC
    Roberto Car

    Princeton University

Topics & keywords

Keywords
  • Exascale computing
  • Massively parallel
  • Efficient energy use
  • Range (aeronautics)
  • Quantum computer
  • Port (circuit theory)
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