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Discussion papers | Copyright
https://doi.org/10.5194/gmd-2018-158
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Development and technical paper 20 Jul 2018

Development and technical paper | 20 Jul 2018

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This discussion paper is a preprint. It is a manuscript under review for the journal Geoscientific Model Development (GMD).

ScientificWorkflows Applied to the Coupling of a Continuum (Elmer v8.3) and a Discrete Element (HiDEM v1.0) Ice Dynamic Model

Shahbaz Memon1,4, Dorothée Vallot2, Thomas Zwinger3, Jan Åström3, Helmut Neukirchen4, Morris Riedel1,4, and Matthias Book4 Shahbaz Memon et al.
  • 1Jülich Supercomputing Centre, Forschungszentrum Jülich, Leo-Brandt Straße, 52428 Jülich, Germany
  • 2Department of Earth Sciences, Uppsala University, Uppsala, Sweden
  • 3CSC – IT Center for Science Ltd., Espoo, Finland
  • 4Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland

Abstract. Scientific computing applications involving complex simulations and data-intensive processing are often composed of multiple tasks forming a workflow of computing jobs. Scientific communities running such applications on distributed and heterogeneous computing resources find it cumbersome to manage and monitor the execution of these tasks. Scientific workflow management systems (WMS) can be used to automate and simplify complex task structures by providing tooling for the composition and execution of workflows across distributed and heterogeneous computing environments. As a case study, we apply the UNICORE workflow management system to a formerly hard-coded coupling of a glacier sliding and calving simulation that contains many tasks and dependencies, ranging from pre-processing and data management to repetitive executions in heterogeneous high-performance computing (HPC) resource environments. Using the UNICORE workflow management system, the composition, management, and execution of the glacier modelling workflow becomes easier with respect to usage, monitoring, maintenance, re-usability, portability, and reproducibility in different environments and by different user groups.

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Model code and software

HiDEM J. Åström https://doi.org/10.5281/zenodo.1252379

UNICORE Workflow Template S. Memon and D. Vallot https://doi.org/10.23728/b2share.f10fd88bcce240fb9c8c4149c130a0d5

Shahbaz Memon et al.
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Latest update: 18 Aug 2018
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Short summary
Scientific workflows enable complex scientific computational scenarios, which include data intensive scenarios, parametric executions, and interactive simulations. In this article, we applied the UNICORE workflow management system to automate a formerly hard-coded coupling of a glacier sliding and calving simulation that contains many tasks and dependencies, ranging from pre-processing and data management to repetitive executions on heterogeneous high-performance computing (HPC) resources.
Scientific workflows enable complex scientific computational scenarios, which include data...
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