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    • SCIENTIFIC PRODUCTION
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    • Dpto. Teoría de la Señal y Comunicaciones e Ingeniería Telemática
    • DEP71 - Artículos de revista
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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/58348

    Título
    The inherent overlapping in the parallel calculation of the Laplacian
    Autor
    Sánchez Curto, JulioAutoridad UVA Orcid
    Chamorro Posada, PedroAutoridad UVA Orcid
    Año del Documento
    2023
    Editorial
    Elsevier
    Descripción
    Producción Científica
    Documento Fuente
    Journal of Computational Science, 2023, vol. 67, 101945
    Abstract
    A new approach for the parallel computation of the Laplacian in the Fourier domain is presented. This numerical problem inherits the intrinsic sequencing involved in the calculation of any multidimensional Fast Fourier Transform (FFT) where blocking communications assure that its computation is strictly carried out dimension by dimension. Such data dependency vanishes when one considers the Laplacian as the sum of n independent one-dimensional kernels, so that computation and communication can be naturally overlapped with nonblocking communications. Overlapping is demonstrated to be responsible for the speedup figures we obtain when our approach is compared to state-of-the-art parallel multidimensional FFTs.
    Materias Unesco
    12 Matemáticas
    33 Ciencias Tecnológicas
    Palabras Clave
    Laplacian
    Overlapping
    Nonblocking communications
    ISSN
    1877-7503
    Revisión por pares
    SI
    DOI
    10.1016/j.jocs.2023.101945
    Patrocinador
    Junta de Castilla León (grant number VA296P18)
    Version del Editor
    https://www.sciencedirect.com/science/article/pii/S1877750323000054
    Propietario de los Derechos
    © 2023 The Author(s)
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/58348
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
    Collections
    • DEP71 - Artículos de revista [158]
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    Attribution-NonCommercial-NoDerivatives 4.0 InternacionalExcept where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional

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