title: Performance of distributed multiscale simulations.
abstract: Multiscale simulations model phenomena across natural scales using monolithic or component-based code, running on local or distributed resources. In this work, we investigate the performance of distributed multiscale computing of component-based models, guided by six multiscale applications with different characteristics and from several disciplines. Three modes of distributed multiscale computing are identified: supplementing local dependencies with large-scale resources, load distribution over multiple resources, and load balancing of small- and large-scale resources. We find that the first mode has the apparent benefit of increasing simulation speed, and the second mode can increase simulation speed if local resources are limited. Depending on resource reservation and model coupling topology, the third mode may result in a reduction of resource consumption.
authors: Computational Science, Informatics Institute, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands j.borgdorff@uva.nl.
authors: J
authors: J
authors: Borgdorff
authors: Computer Science Department, University of Geneva, 1227 Carouge, Switzerland.
authors: M
authors: M
authors: Ben Belgacem
authors: Department of Applied Mathematics, University of A Coruña, 15001 A Coruña, Spain.
authors: C
authors: C
authors: Bona-Casas
authors: Department of Earth and Space Sciences, Chalmers University of Technology, 41296 Göteborg, Sweden.
authors: L
authors: L
authors: Fazendeiro
authors: Centre for Computational Science, University College London, 20 Gordon Street, London WC1H OAJ, UK.
authors: D
authors: D
authors: Groen
authors: Max-Planck-Institut für Plasmaphysik, 85748 Garching, Germany.
authors: O
authors: O
authors: Hoenen
authors: Nano Systems Biology, School of Biomedicine, University of Ulster, Coleraine BTS2 1SA, UK.
authors: A
authors: A
authors: Mizeranschi
authors: Centre for Computational Science, University College London, 20 Gordon Street, London WC1H OAJ, UK.
authors: J L
authors: JL
authors: Suter
authors: Max-Planck-Institut für Plasmaphysik, 85748 Garching, Germany.
authors: D
authors: D
authors: Coster
authors: Centre for Computational Science, University College London, 20 Gordon Street, London WC1H OAJ, UK.
authors: P V
authors: PV
authors: Coveney
authors: Nano Systems Biology, School of Biomedicine, University of Ulster, Coleraine BTS2 1SA, UK.
authors: W
authors: W
authors: Dubitzky
authors: Computational Science, Informatics Institute, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands National Research University ITMO, Kronverkskiy prospekt 49, 197101 St Petersburg, Russia.
authors: A G
authors: AG
authors: Hoekstra
authors: Department of Earth and Space Sciences, Chalmers University of Technology, 41296 Göteborg, Sweden.
authors: P
authors: P
authors: Strand
authors: Computer Science Department, University of Geneva, 1227 Carouge, Switzerland.
authors: B
authors: B
authors: Chopard
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D008954:Models, Biological; D012984:Software; D012985:Software Design; D018511:Systems Integration
keywords: distributed multiscale computing; multiscale simulation; performance