Technical Papers
Nov 17, 2014

Celestina-Sim: Framework to Support Distributed Testing and Service Integration in Earthquake Engineering

Publication: Journal of Computing in Civil Engineering
Volume 30, Issue 1

Abstract

Distributed hybrid simulation is an approach to large-scale testing in which the system under test is split into several sub-structures which are tested or simulated in different locations. Data are passed between the sub-structures at each timestep so as to ensure that the distributed experiment realistically simulates the full system under test. This approach optimises the use of resources at different locations to achieve a more representative experiment. While different software to conduct distributed simulations exists, there are no standards and specifications to organise and plan the experiments, and as a result the different systems lack inter-operability. To address these issues, we have developed a high-level specification called Celestina, which provides a framework for conducting a distributed experiment. Celestina specifies the services to be implemented, under three main headings of networking, definition and execution, and supports the data exchange during a simulation. It does not force any particular implementation or method of data exchange. This paper summarises the Celestina specification and describes one implementation. Lastly, a validation experiment is presented, involving distributed numerical simulations of an earlier local hybrid experiment, in which Celestina controls the experiment planning and data exchange effectively and with minimal computational overhead.

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Acknowledgments

The work described has received funding from the European Community Seventh Framework Program (FP7-Infrastructure-2008-1) under grant agreement no. 227887, as part of the project SERIES (Seismic Engineering Research Infrastructures for European Synergies).

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Go to Journal of Computing in Civil Engineering
Journal of Computing in Civil Engineering
Volume 30Issue 1January 2016

History

Received: Jan 30, 2014
Accepted: Oct 10, 2014
Published online: Nov 17, 2014
Discussion open until: Apr 17, 2015
Published in print: Jan 1, 2016

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Authors

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Ignacio Lamata Martinez [email protected]
Researcher, Dept. of Engineering Science, Univ. of Oxford, Parks Rd., Oxford OX1 3PJ, U.K (corresponding author). E-mail: [email protected]
Ferran Obon Santacana
Researcher, Institute of Structural Engineering, Univ. of Kassel, Mönchebergstraße 19, 34109 Kassel, Germany.
Martin S. Williams
Professor, Dept. of Engineering Science, Univ. of Oxford, Parks Rd., Oxford OX1 3PJ, U.K.
Anthony Blakeborough
Professor, Dept. of Engineering Science, Univ. of Oxford, Parks Rd., Oxford OX1 3PJ, U.K.
Uwe E. Dorka
Professor, Institute of Structural Engineering, Univ. of Kassel, Mönchebergstraße 19, 34109 Kassel, Germany.

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