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Post-Processing Pipeline Optimization for Interactive Exploration of Multi-Block Turbine Propulsion Simulation Datasets

Gerndt, Andreas and Hempel, Rolf and Kügeler, Edmund and Kuhlen, Torsten (2009) Post-Processing Pipeline Optimization for Interactive Exploration of Multi-Block Turbine Propulsion Simulation Datasets. In: Proceedings of the 5th High-End Visualization Workshop, pp. 62-78. Lehmanns Media. 5th High-End Visualization Workshop, 18. - 22. March 2009, Baton Rouge, Louisiana, USA. ISBN 978-3-86541-330-7.

Full text not available from this repository.

Abstract

With the increasing power of current supercomputers, flow field simulations become larger and larger. Those datasets are too large to fit into the main memory of a visualization workstation and too large to be processed in a reasonable time on a stand-alone system. Distributed post-processing can eliminate dominant bottlenecks. With parallel computer systems, the post-processing can show a considerable speed-up. In this paper, we address issues to optimize several phases of the pipeline-based post-processing for interactive exploration of time-dependent, multi-block flow field simulation datasets. Firstly, we present the distributed post-processing framework, its approach to manage multi-block data structures, and how nested parallelization can improve the overall runtime. Scalability, balancing, and efficiency of algorithms optimized for unsteady multi-block datasets are presented. However, complex feature extractions are still time-consuming. For interactive exploration approaches in virtual environments, further strategies like streaming of intermediate data from post-processing backend to visualization frontend are needed. If the extracted visualization objects are too complex to be rendered with interactive frame rates, view-dependent multi-resolution techniques can help to present essential details without losing real-time rendering. To improve the interactivity, several integrated strategies are evaluated. Run-time measurements prove the efficiency of the approaches. An outlook for future steps concludes this paper.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Post-Processing Pipeline Optimization for Interactive Exploration of Multi-Block Turbine Propulsion Simulation Datasets
Authors:
AuthorsInstitution or Email of Authors
Gerndt, AndreasDLR, Germany
Hempel, RolfDLR, Germany
Kügeler, EdmundDLR, Germany
Kuhlen, TorstenVR-Group, RWTH Aachen, Germany
Date:2009
Journal or Publication Title:Proceedings of the 5th High-End Visualization Workshop
Refereed publication:Yes
In ISI Web of Science:No
Page Range:pp. 62-78
Editors:
EditorsEmail
Berger, WernerUNSPECIFIED
Schoor, WolframUNSPECIFIED
Su, SimonUNSPECIFIED
Gerndt, AndreasUNSPECIFIED
Publisher:Lehmanns Media
ISBN:978-3-86541-330-7
Status:Published
Keywords:Virtual Reality, Scientific Visualization, Large-scale Datasets, Multi-Block Data Structure, Data Streaming, Multi-Resolution Approaches
Event Title:5th High-End Visualization Workshop
Event Location:Baton Rouge, Louisiana, USA
Event Type:Workshop
Event Dates:18. - 22. March 2009
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:other
DLR - Research area:Transport
DLR - Program:V - no assignement
DLR - Research theme (Project):V -- no assignement
Location: Köln-Porz , Braunschweig
Institutes and Institutions:Institut of Simulation and Software Technology
Institut of Simulation and Software Technology > Software für Raumfahrtsysteme und interaktive Visualisierung
Deposited By: Dr.rer.nat. Andreas Gerndt
Deposited On:10 Dec 2009 09:47
Last Modified:18 Mar 2013 16:55

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