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Earth System Models: Challenges in a changing HPC environment

Jöckel, Patrick (2012) Earth System Models: Challenges in a changing HPC environment. High Performance Computing and Networking Workshop, Braunschweig, Germany.

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Kurzfassung

Climate models are continuously further developed into comprehensive Earth System Models (ESMs) representing more and more detailed process descriptions at increasingly higher model resolution. This transition poses several challenges, which are exacerbated by the concurrently changing HPC environment. The steadily increasing complexity of the model systems requires new approaches for the overall model design to keep them manageable and extendable, their long life cycles require the application of software engineering techniques in HPC and rely on standardisations. One of the fundamental issues is the methodology to combine ("couple") efficiently different domain and/or process models into a consistent ESM. Often, historically grown legacy codes, or parts of them, and model components based on a variety of numerical methods and parallelisation strategies need to be connected. Several approaches to tackle these issues exist. The Modular Earth Submodel System combines different coupling approaches, such as the fine granular modularisation for atmospheric chemistry processes, the indirect and direct coupling of an atmosphere - ocean system, and the on-line nesting of a high resolution limited area atmospheric model into a global model.

Dokumentart:Konferenzbeitrag (Vorlesung)
Titel:Earth System Models: Challenges in a changing HPC environment
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Jöckel, PatrickPatrick.Joeckel@dlr.de
Datum:22 Mai 2012
Stichwörter:climate modelling, high-performance computing
Veranstaltungstitel:High Performance Computing and Networking Workshop
Veranstaltungsort:Braunschweig, Germany
Veranstaltungsart:Workshop
Veranstalter :9-10 May 2012
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erdbeobachtung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):R - Vorhaben Atmosphären- und Klimaforschung
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Dynamik der Atmosphäre
Hinterlegt von: Patrick Jöckel
Hinterlegt am:22 Mai 2012 11:27
Letzte Änderung:12 Dez 2013 21:39

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