A Fast Mixed-Precision Strategy for Iterative GPU-Based Solution of the Laplace Equation

Stefan Lemvig Glimberg (Author)

    Research output: Non-textual formSound/Visual production (digital)Research

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    Abstract

    Our work is concerned with the development of a generic high-performance library for scientific computing. The library is targeted for assembling flexible-order finite-difference solvers for PDEs. Our goal is to enable fast solution of large PDE systems, fully exploiting the massively parallel architecture of Graphics Processing Units. We will detail a strategy for an iterative mixed-precision defect correction method, with p-multigrid preconditioning. We present a case study of the fully nonlinear potential flow equations, in which the bottleneck problem is finding the solution of a Laplace equation. Such large scale simulations can be of great value in coastal and offshore engineering application.
    Original languageEnglish
    Publication date2011
    Publication statusPublished - 2011
    EventLANS Informal Seminar - Argonne, Illinois, USA
    Duration: 1 Jan 2011 → …

    Conference

    ConferenceLANS Informal Seminar
    CityArgonne, Illinois, USA
    Period01/01/2011 → …

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