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IEEE Cluster 2013 Conference
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Tuesday, September 24 • 4:00pm - 4:25pm
FlexQuery: An Online Query System for Interactive Remote Visual Data Exploration at Large Scale

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The remote visual exploration of live data generated by scientific simulations is useful for scientific discovery, performance monitoring, and online validation for the sim- ulation results. Online visualization methods are challenged, however, by the continued growth in the volume of simulation output data that has to be transferred from its source – the simulation running on the high end machine – to where it is analyzed, visualized, and displayed. A specific challenge in this context is limits in the communication bandwidth between data source(s) and sinks. data reduction capabilities, but such work does not address the common scenario in which scientists make multiple simultaneous and different queries about the data being produced. This paper considers the general case in which science users are interested in different (sub)sets of the data produced by a high end simulation. We offer the FlexQuery online data query system that can deploy and execute data queries (e.g., those used for purposes of data visualization) ‘along’ the I/O and analytics pipelines. FlexQuery carefully extends such analytics pipelines, using online performance monitoring and data location tracking, to realize data queries in ways that minimize additional data movement and offer low latency in data query execution. Using a real-world scientific application – the Maya astrophysics code and its analytics workflow – we demonstrate FlexQuery’s ability to dynamically deploy queries for low-latency remote data visualization.

Tuesday September 24, 2013 4:00pm - 4:25pm
15th Floor - Circle City 15 (Hilton) 120 W. Market St, Indianapolis, IN

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