• Login
    View Item 
    •   Shocker Open Access Repository Home
    • Engineering
    • Aerospace Engineering
    • AE Research Publications
    • View Item
    •   Shocker Open Access Repository Home
    • Engineering
    • Aerospace Engineering
    • AE Research Publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    MPI/Open-MP hybridization of higher order WENO scheme for the incompressible Navier-Stokes equations

    View/Open
    Conference paper (273.5Kb)
    Date
    2015-01
    Author
    Selvam, Mukundhan
    Hoffmann, Klaus A.
    Metadata
    Show full item record
    Citation
    Mukundhan Selvam and Klaus A. Hoffmann. "MPI/Open-MP Hybridization of Higher Order WENO Scheme for the Incompressible Navier-Stokes Equations", AIAA Infotech @ Aerospace, AIAA SciTech, (AIAA 2015-1951). http://dx.doi.org/10.2514/6.2015-1951
    Abstract
    With the contemporary emerging transition for the past two decades in high performance computing (HPC) towards clusters of nodes, it is possible to obtain an efficiently scalable CFD code by hybridization of Message Passing Interface (MPI) and Open Multi-Processing (Open-MP). The parallelization of an incompressible higher order DNS solver using Navier-Stokes equations utilizing WENO (weighted Essentially Non-Oscillatory) scheme is presented in this paper. Initially, a time dependent two dimensional diffusion equation was parallelized by MPI in an effort to explore the concepts. Subsequently, the procedure is extended with several advanced MPI routines for the parallelization of higher order finite-difference schemes. The parallelized code is subsequently examined on a benchmark problem for incompressible flows – lid driven cavity. The results of the developed code were compared and validated with the serial model. The overall objective is to achieve the best performance of the incompressible Navier-Stokes solver by carefully implementing, profiling and optimizing both MPI communications and Open-MP parallelization. The results demonstrate that, incorporating Open-MP parallelization technique contributes a slight advantage in performance relative to pure MPI implementation. MPI processes are limited by the number of communicators and grid size of the simulation. However, fine grain parallelization is possible by incorporating Open-MP threads in certain segments of the code.
    Description
    Copyright by authors. Posted on SOAR with author permission.
    URI
    http://dx.doi.org/10.2514/6.2015-1951
    http://hdl.handle.net/10057/12029
    Collections
    • AE Research Publications

    Browse

    All of Shocker Open Access RepositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsBy TypeThis CollectionBy Issue DateAuthorsTitlesSubjectsBy Type

    My Account

    LoginRegister

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    DSpace software copyright © 2002-2022  DuraSpace
    DSpace Express is a service operated by 
    Atmire NV