High resolution tsunami inundation simulations

S. G. Roberts, Y. Oishi, M. Li

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    4 Citations (Scopus)

    Abstract

    In this paper we investigate the high performance computing efficiency of the shallow water software package ANUGA . This package is developed as a collaborative project between the Australian National University (ANU) and Geoscience Australia (GA) and is available as Free and Open Source Software (FOSS). ANUGA uses a shallow water model and approximates the model using the finite volume method based on unstructured meshes of triangles. The geometrical flexibility of unstructured meshes is convenient for tsunami inundation modeling where the tsunami wave source generally consists of long wavelength components, and waves around the coast consists of short wavelengths, which can both be modeled in the same simulation. ANUGA is written in the high level computer language PYTHON. We will present an overview of the model and the numerical method in the early sections of the paper. We will then present our work on parallelizing the ANUGA code, in particular our efforts to obtain efficient simulations using 100s of CPU cores. Our results demonstrate that our PYTHON based software can obtain high efficiency on highly parallel computers. The results presented in this paper demonstrate better than real time simulation of medium resolution (millions of triangles) tsunami models. Our ultimate goal is the solution of high resolution (tens of millions of triangles) simulations in better than real time.

    Original languageEnglish
    Title of host publicationProceedings - 20th International Congress on Modelling and Simulation, MODSIM 2013
    EditorsJulia Piantadosi, Robert Anderssen, John Boland
    PublisherModelling and Simulation Society of Australia and New Zealand Inc (MSSANZ)
    Pages310-316
    Number of pages7
    ISBN (Electronic)9780987214331
    Publication statusPublished - 2013
    Event20th International Congress on Modelling and Simulation - Adapting to Change: The Multiple Roles of Modelling, MODSIM 2013 - Held jointly with the 22nd National Conference of the Australian Society for Operations Research, ASOR 2013 and the DSTO led Defence Operations Research Symposium, DORS 2013 - Adelaide, Australia
    Duration: 1 Dec 20136 Dec 2013

    Publication series

    NameProceedings - 20th International Congress on Modelling and Simulation, MODSIM 2013

    Conference

    Conference20th International Congress on Modelling and Simulation - Adapting to Change: The Multiple Roles of Modelling, MODSIM 2013 - Held jointly with the 22nd National Conference of the Australian Society for Operations Research, ASOR 2013 and the DSTO led Defence Operations Research Symposium, DORS 2013
    Country/TerritoryAustralia
    CityAdelaide
    Period1/12/136/12/13

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