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Full-Text Articles in Physical Sciences and Mathematics
System Design And Algorithmic Development For Computational Steering In Distributed Environments, Qishi Wu, Michelle Zhu, Yi Gu, Nageswara S.V. Rao
System Design And Algorithmic Development For Computational Steering In Distributed Environments, Qishi Wu, Michelle Zhu, Yi Gu, Nageswara S.V. Rao
Department of Computer Science Faculty Scholarship and Creative Works
Supporting visualization pipelines over wide-area networks is critical to enabling large-scale scientific applications that require visual feedback to interactively steer online computations. We propose a remote computational steering system that employs analytical models to estimate the cost of computing and communication components and optimizes the overall system performance in distributed environments with heterogeneous resources. We formulate and categorize the visualization pipeline configuration problems for maximum frame rate into three classes according to the constraints on node reuse or resource sharing, namely no, contiguous, and arbitrary reuse. We prove all three problems to be NP-complete and present heuristic approaches based on …
Optimal Pipeline Decomposition And Adaptive Network Mapping To Support Distributed Remote Visualization, Michelle Zhu, Qishi Wu, Nageswara S.V. Rao, Sitharama Iyengar
Optimal Pipeline Decomposition And Adaptive Network Mapping To Support Distributed Remote Visualization, Michelle Zhu, Qishi Wu, Nageswara S.V. Rao, Sitharama Iyengar
Department of Computer Science Faculty Scholarship and Creative Works
This paper discusses algorithmic and implementation aspects of a distributed remote visualization system that optimally decomposes and adaptively maps the visualization pipeline to a wide-area shared or dedicated network. The first node of the system typically generates or stores raw data sets, and a remote client resides on the last node equipped with a display device ranging from a personal desktop to a powerwall. Intermediate nodes include workstations, clusters, or rendering engines, which can be located anywhere on the network. We employ a regression method to estimate the effective bandwidth of a transport path. Based on link measurements, node characteristics, …