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Analyse, conception et réalisation d'un environnement pour le pilotage et la visualisation en ligne de simulations numériques parallèles

Aurélien Esnard 1, 2
2 SCALAPPLIX - Algorithms and high performance computing for grand challenge applications
Université Bordeaux Segalen - Bordeaux 2, Université Sciences et Technologies - Bordeaux 1, Inria Bordeaux - Sud-Ouest, École Nationale Supérieure d'Électronique, Informatique et Radiocommunications de Bordeaux (ENSEIRB), CNRS - Centre National de la Recherche Scientifique : UMR5800
Abstract : The computational steering is an effort to make the typical simulation work-flow (modeling, computing, analyzing) more efficient, by providing online visualization and interactive steering over the on-going computational processes. The online visualization appears very useful to monitor and to detect possible errors in long-running applications, and the interactive steering allows the researcher to alter simulation parameters on-the-fly and to immediately receive feedback on their effects. Thus, the scientist gains an additional insight in the simulation regarding to the cause-and-effect relationship.

The purpose of this thesis is to design and to develop a software environment, called EPSN (Environment for the Steering of Parallel Numerical Simulations) that enables to steer parallel simulations with visualization systems that can be parallel as well. In other words, we want to provide an environment that can benefit from immersive virtual reality technology (e.g. tiled display wall) and that might help scientists to better grasp the complexity of real-life simulations. Such a coupling between parallel numerical simulations and parallel visualization systems raises two crucial issues we investigate in this thesis: the problem of parallel coordination of steering operations and the problem of data redistribution of complex objects such as structured grids, particle set and unstructured meshes.
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Submitted on : Tuesday, June 20, 2006 - 12:41:01 PM
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  • HAL Id : tel-00080729, version 1



Aurélien Esnard. Analyse, conception et réalisation d'un environnement pour le pilotage et la visualisation en ligne de simulations numériques parallèles. Autre [cs.OH]. Université Sciences et Technologies - Bordeaux I, 2005. Français. ⟨tel-00080729⟩



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