Parallel Texture-Based Vector Field Visualization on Curved Surfaces Using GPU Cluster Computers

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dc.contributor.authorBachthaler, S.en_US
dc.contributor.authorStrengert, M.en_US
dc.contributor.authorWeiskopf, D.en_US
dc.contributor.authorErtl, T.en_US
dc.contributor.editorAlan Heirich and Bruno Raffin and Luis Paulo dos Santosen_US
dc.date.accessioned2014-01-26T16:30:47Z
dc.date.available2014-01-26T16:30:47Z
dc.date.issued2006en_US
dc.description.abstractWe adopt a technique for texture-based visualization of flow fields on curved surfaces for parallel computation on a GPU cluster. The underlying LIC method relies on image-space calculations and allows the user to visualize a full 3D vector field on arbitrary and changing hypersurfaces. By using parallelization, both the visualization speed and the maximum data set size are scaled with the number of cluster nodes. A sort-first strategy with image-space decomposition is employed to distribute the workload for the LIC computation, while a sort-last approach with an object-space partitioning of the vector field is used to increase the total amount of available GPU memory. We specifically address issues for parallel GPU-based vector field visualization, such as reduced locality of memory accesses caused by particle tracing, dynamic load balancing for changing camera parameters, and the combination of image-space and object-space decomposition in a hybrid approach. Performance measurements document the behavior of our implementation on a GPU cluster with AMD Opteron CPUs, NVIDIA GeForce 6800 Ultra GPUs, and Infiniband network connection.en_US
dc.description.seriesinformationEurographics Symposium on Parallel Graphics and Visualizationen_US
dc.identifier.isbn3-905673-40-1en_US
dc.identifier.issn1727-348Xen_US
dc.identifier.urihttps://doi.org/10.2312/EGPGV/EGPGV06/075-082en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): I.3.3 [Computer Graphics]: Viewing algorithms I.3.3 [Three-Dimensional Graphics and Realism]: Color, shading, shadowing, and textureen_US
dc.titleParallel Texture-Based Vector Field Visualization on Curved Surfaces Using GPU Cluster Computersen_US
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EGPGV06: Eurographics Symposium on Parallel Graphics and Visualization