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DOE OSTI · 1663267

Data Services for Visualization and Analysis - ASC Level II Milestone (7186)

Templet, Jr., Gary J.·Glickman, Matthew R.·Kordenbrock, Todd Henry·Levy, Scott Larson Nicoll·Lofstead, Gerald Fredrick·Mauldin, Jeff·Otahal, Thomas Jay·Ulmer, Craig D.·Widener, Patrick·Oldfield, Ron A.
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Abstract

A new in transit Data Service is presented and compared to the traditional file-based workflow and the newly refactored in situ Catalyst workflow. Each workflow is enabled by the IOSS mesh interface equipped with data management layers for Exodus and CGNS (file-based), Catalyst (in situ), and FAODEL (in transit). FAODEL is a distributed object store that can transmit data across MPI allocations. Catalyst is a Para View-based visualization capability developed as part of the CSSE Data Services effort. The workflows considered here take SPARC data into Catalyst for visualization post-processing. Although still in unoptimized form, we show that the in transit approach is a viable alternative to file-based and in situ workflows and offers several advantages to both simulation and post-processing developers. Since IOSS is a mature interface with wide adoption across Sandia and externally, each workflow can be reconfigured to use different simulations that generate mesh data and post-processing tools that consume it.

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97 MATHEMATICS AND COMPUTING

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Templet, Jr., Gary J., Glickman, Matthew R., Kordenbrock, Todd Henry, Levy, Scott Larson Nicoll, Lofstead, Gerald Fredrick, Mauldin, Jeff, Otahal, Thomas Jay, Ulmer, Craig D., Widener, Patrick, Oldfield, Ron A.. 2020-08-01. Data Services for Visualization and Analysis - ASC Level II Milestone (7186). https://doi.org/10.2172/1663267

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