TY - JOUR A1 - Benger, Werner A1 - Bartsch, Hauke A1 - Hege, Hans-Christian A1 - Kitzler, Hagen A1 - Shumilina, Anna A1 - Werner, Annett T1 - Visualizing neuronal structures in the human brain via Diffusion Tensor MRI JF - Int. Journal of Neuroscience Y1 - 2006 VL - 116(4) SP - 461 EP - 514 ER - TY - CHAP A1 - Allen, Gabrielle A1 - Benger, Werner A1 - Goodale, Tom A1 - Hege, Hans-Christian A1 - Lanfermann, Gerd A1 - Merzky, André A1 - Radke, Thomas A1 - Seidel, Edward A1 - Shalf, John T1 - The Cactus Code: A Problem Solving Environment for the Grid T2 - High Performance Distributed Computing (HPDC-2000) Y1 - 2000 U6 - https://doi.org/10.1109/HPDC.2000.868657 SP - 253 EP - 260 ER - TY - JOUR A1 - Allen, Gabrielle A1 - Benger, Werner A1 - Dramlitsch, Thomas A1 - Goodale, Tom A1 - Hege, Hans-Christian A1 - Lanfermann, Gerd A1 - Merzky, André A1 - Radtke, Thomas A1 - Seidel, Edward A1 - Shalf, John T1 - Cactus Tools for Grid Applications JF - Cluster Computing Y1 - 2001 U6 - https://doi.org/10.1023/A:1011491422534 VL - 4 IS - 3 SP - 179 EP - 188 ER - TY - CHAP A1 - Allen, Gabrielle A1 - Benger, Werner A1 - Dramlitsch, Thomas A1 - Goodale, Tom A1 - Hege, Hans-Christian A1 - Lanfermann, Gerd A1 - Merzky, André A1 - Radke, Thomas A1 - Seidel, Edward ED - Sakellariou, Rizos ED - Keane, Jon ED - Gurd, John ED - Freeman, Len T1 - Cactus Grid Computing: Review of Current Devlopment T2 - Proceedings of Euro-Par 2001: 7th International Euro-Par Conference on Parallel Processing Y1 - 2001 U6 - https://doi.org/10.1007/3-540-44681-8_115 VL - 2150 SP - 817 EP - 824 PB - Springer Verlag, Berlin Heidelberg 2001 ER - TY - CHAP A1 - Benger, Werner A1 - Hege, Hans-Christian T1 - Tensor splats T2 - Visualization and Data Analysis 2004, Proc. of SPIE Y1 - 2004 U6 - https://doi.org/10.1117/12.549300 VL - 5295 SP - 151 EP - 162 ER - TY - CHAP A1 - Ullmer, Brygg A1 - Hutanu, Andrei A1 - Benger, Werner A1 - Hege, Hans-Christian ED - Staadt, Oliver T1 - Emerging Tangible Interfaces for Facilitating Collaborative Immersive Visualizations T2 - Proc. of NSF Lake Tahoe Workshop on Collaborative Virtual Reality and Visualization (extended abstract) Y1 - 2003 ER - TY - CHAP A1 - Benger, Werner A1 - Hege, Hans-Christian T1 - Analysing curved spacetimes with tensor splats T2 - Proceedings of the Tenth Marcel Grossmann Meeting in Theoretical and Experimental General Relativity, Gravitation and Relativistic Field Theories Y1 - 2006 U6 - https://doi.org/10.1142/9789812704030_0164 VL - 3 SP - 1619 EP - 1624 PB - World Scientific CY - Singapore ER - TY - JOUR A1 - Benger, Werner A1 - Hege, Hans-Christian T1 - Strategies for direct visualization of second-rank tensor fields JF - Visualization and Processing of Tensor Fields Y1 - 2006 U6 - https://doi.org/10.1007/3-540-31272-2_11 SP - 191 EP - 214 PB - Springer Verlag ER - TY - CHAP A1 - Benger, Werner A1 - Hege, Hans-Christian A1 - Merzky, André A1 - Radke, Thomas A1 - Seidel, Edward T1 - Efficient Distributed File I/O for Visualization in Grid Environments T2 - Simulation and Visualization on the Grid Y1 - 2000 VL - 13 SP - 1 EP - 6 PB - Springer Verlag ER - TY - CHAP A1 - Benger, Werner A1 - Hege, Hans-Christian A1 - Heusler, Stefan T1 - Visions of Numerical Relativity T2 - Proceedings of the 3d International Conference on the Interaction of Art and Fluid Mechanics (SCART2000) Y1 - 2000 SP - 239 EP - 246 PB - Kluwer Academic Publishers CY - ETH Zürich Zwitzerland ER - TY - JOUR A1 - Hege, Hans-Christian A1 - Benger, Werner A1 - Merzky, André A1 - Kasper, Friedbert A1 - Radke, Thomas A1 - Seidel, Edward T1 - Schwarze Löcher in Sicht - Immersive Überwachung und Steuerung von Remote-Simulationen JF - DFN-Mitteilungen Y1 - 2000 VL - 52 IS - 2 SP - 4 EP - 6 ER - TY - JOUR A1 - Allen, Gabrielle A1 - Goodale, Tom A1 - Lanfermann, Gerd A1 - Seidel, Edward A1 - Benger, Werner A1 - Hege, Hans-Christian A1 - Merzky, André A1 - Masso, Joan A1 - Shalf, John T1 - Solving Einstein’s Equations on Supercomputers JF - IEEE Computer Y1 - 1999 U6 - https://doi.org/10.1109/2.809251 SP - 52 EP - 59 ER - TY - CHAP A1 - Benger, Werner A1 - Foster, Ian A1 - Novotny, Jason A1 - Seidel, Edward A1 - Shalf, John A1 - Smith, Warren A1 - Walker, Paul T1 - Numerical Relativity in a Distributed Environment T2 - Proceedings of the Ninth SIAM Conference on Parallel Processing for Scientific Computing Y1 - 1999 ER - TY - THES A1 - Benger, Werner T1 - Visualization of General Relativistic Tensor Fields via a Fiber Bundle Data Model Y1 - 2004 N1 - ISBN 3-86541-108-8 ER - TY - GEN A1 - Benger, Werner A1 - Hege, Hans-Christian T1 - Tensor Splats N2 - An improved general-purpose technique for the visualization of symmetric positive definite tensor fields of rank two is described. It is based on a splatting technique that is built from tiny transparent glyph primitives which are capable to incorporate the full directional information content of a tensor. The result is an information-rich image that allows to read off the preferred directions in a tensor field at each point of a three-dimensional volume or two-dimensional surface. It is useful for analyzing slices or volumes of a three-dimensional tensor field and can be overlayed with standard volume rendering or color mapping. The application of the rendering technique is demonstrated on general relativistic data and the diffusion tensor field of a human brain. T3 - ZIB-Report - 03-17 KW - tensor field visualization KW - metric KW - splatting KW - volume rendering KW - general relativity KW - diffusion tensor images Y1 - 2003 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0297-zib-7393 ER - TY - GEN A1 - Benger, Werner A1 - Hege, Hans-Christian A1 - Heusler, Stefan T1 - Visions of Numerical Relativity 1999 N2 - We present visualizations of recent supercomputer simulations from numerical relativity, exploiting the progress in visualization techniques and numerical methods also from an artistic point of view. The sequences have been compiled into a video tape, showing colliding black holes, orbiting and merging neutron stars as well as collapsing gravitational waves. In this paper we give some background information and provide a glance at the presented sequences. T3 - ZIB-Report - SC-99-53 KW - General Relativity KW - Data Visualization KW - Numerical Simulations Y1 - 2000 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0297-zib-4429 ER - TY - GEN A1 - Benger, Werner A1 - Hege, Hans-Christian A1 - Merzky, Andre A1 - Radke, Thomas A1 - Seidel, Edward T1 - Efficient Distributed File I/O for Visualization in Grid Environments N2 - Large scale simulations running in metacomputing environments face the problem of efficient file I/O. For efficiency it is desirable to write data locally, distributed across the computing environment, and then to minimize data transfer, i.e.\ reduce remote file access. Both aspects require I/O approaches which differ from existing paradigms. For the data output of distributed simulations, one wants to use fast local parallel I/O for all participating nodes, producing a single distributed logical file, while keeping changes to the simulation code as small as possible. For reading the data file as in postprocessing and file based visualization, one wants to have efficient partial access to remote and distributed files, using a global naming scheme and efficient data caching, and again keeping the changes to the postprocessing code small. However, all available software solutions require the entire data to be staged locally (involving possible data recombination and conversion), or suffer from the performance problems of remote or distributed file systems. In this paper we show how to interface the HDF5 I/O library via its flexible Virtual File Driver layer to the Globus Data Grid. We show, that combining these two toolkits in a suitable way provides us with a new I/O framework, which allows efficient, secure, distributed and parallel file I/O in a metacomputing environment. T3 - ZIB-Report - SC-99-43 KW - Grid KW - Data Grid KW - Globus KW - HDF5 KW - Cactus KW - CCTK KW - Amira KW - VFD KW - Storage Systems Y1 - 1999 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0297-zib-4326 ER -