Interactive Particle Tracing in Time-Varying Tetrahedral Grids

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dc.contributor.authorBußler, Michaelen_US
dc.contributor.authorRick, Tobiasen_US
dc.contributor.authorKelle-Emden, Andreasen_US
dc.contributor.authorHentschel, Bernden_US
dc.contributor.authorKuhlen, Torstenen_US
dc.contributor.editorTorsten Kuhlen and Renato Pajarola and Kun Zhouen_US
dc.date.accessioned2014-01-26T16:57:06Z
dc.date.available2014-01-26T16:57:06Z
dc.date.issued2011en_US
dc.description.abstractParticle tracing methods are a fundamental class of techniques for vector field visualization. Specifically, interactive particle advection allows the user to rapidly gain an intuitive understanding of flow structures. Yet, it poses challenges in terms of computational cost and memory bandwidth. This is particularly true if the underlying data is time-dependent and represented by a series of unstructured meshes. In this paper, we propose a novel approach which maps the aforementioned computations to modern many-core compute devices in order to achieve parallel, interactive particle advection. The problem of cell location on unstructured tetrahedral meshes is addressed by a two-phase search scheme which is performed entirely on the compute device. In order to cope with limited device memory, the use of data reduction techniques is proposed. A CUDA implementation of the proposed algorithm is evaluated on the basis of one synthetic and two real-world data sets. This particularly includes an assessment of the effects of data reduction on the advection process' accuracy and its performance.en_US
dc.description.seriesinformationEurographics Symposium on Parallel Graphics and Visualizationen_US
dc.identifier.isbn978-3-905674-32-3en_US
dc.identifier.issn1727-348Xen_US
dc.identifier.urihttps://doi.org/10.2312/EGPGV/EGPGV11/071-080en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): I.3.1 [Computer Graphics]: Hardware Architecture- Graphics processors I.6.6 [Computer Graphics]: Simulation and Modeling-Simulation Output Analysis J.2 [Computer Applications]: Physical Science and Engineering-Engineeringen_US
dc.titleInteractive Particle Tracing in Time-Varying Tetrahedral Gridsen_US
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EGPGV11: Eurographics Symposium on Parallel Graphics and Visualization