VisIt-OSPRay: Toward an Exascale Volume Visualization System (Unknown language)

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Large-scale simulations can easily produce data in excess of what can be efficiently visualized using production visualization software, making it challenging for scientists to gain insights from the results of these simulations. This trend is expected to grow with exascale. To meet this challenge, and run on the highly parallel hardware being deployed on HPC system, rendering systems in production visualization software must be redesigned to perform well at these new scales and levels of parallelism. In this work, we present VisIt-OSPRay, a high-performance, scalable, hybrid-parallel rendering system in VisIt, using OSPRay and IceT, coupled with PIDX for scalable I/O. We examine the scalability and memory efficiency of this system and investigate further areas for improvement to prepare VisIt for upcoming exascale workloads.

Table of contents conference proceedings

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Direct Raytracing of Particle-based Fluid Surfaces Using Anisotropic Kernels
Biedert, Tim / Sohns, Jan-Tobias / Schröder, Simon / Amstutz, Jefferson / Wald, Ingo / Garth, Christoph | 2018
VisIt-OSPRay: Toward an Exascale Volume Visualization System
Wu, Qi / Usher, Will / Petruzza, Steve / Kumar, Sidharth / Wang, Feng / Wald, Ingo / Pascucci, Valerio / Hansen, Charles D. | 2018
Robust Iterative Find-Next-Hit Ray Traversal
Wald, Ingo / Amstutz, Jefferson / Benthin, Carsten | 2018
Hardware-Accelerated Multi-Tile Streaming for Realtime Remote Visualization
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Performance-Portable Particle Advection with VTK-m
Pugmire, David / Yenpure, Abhishek / Kim, Mark / Kress, James / Maynard, Robert / Childs, Hank / Hentschel, Bernd | 2018
Dense Texture Flow Visualization using Data-Parallel Primitives
Kim, Mark / Klasky, Scott / Pugmire, David | 2018
Revisiting the Evaluation of In Situ Lagrangian Analysis
Sane, Sudhanshu / Bujack, Roxana / Childs, Hank | 2018
Rapid k-d Tree Construction for Sparse Volume Data
Zellmann, Stefan / Schulze, Jürgen P. / Lang, Ulrich | 2018
Interactive Visual Analysis of Multi-dimensional Metamodels
Gebhardt, Sascha / Pick, Sebastian / Hentschel, Bernd / Kuhlen, Torsten Wolfgang | 2018
La VALSE: Scalable Log Visualization for Fault Characterization in Supercomputers
Guo, Hanqi / Di, Sheng / Gupta, Rinku / Peterka, Tom / Cappello, Franck | 2018