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DTSTART;TZID=America/New_York:20241117T153000
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UID:submissions.supercomputing.org_SC24_sess743_ws_isav103@linklings.com
SUMMARY:Bridging Gaps in Simulation Analysis through a General Purpose, Bi
 directional Steering Interface with Ascent
DESCRIPTION:Andres Sewell (Utah State University); Dimitrios Fytanidis and
  Victor Mateevitsi (Argonne National Laboratory (ANL)); Cyrus Harrison and
  Nicole Marsaglia (Lawrence Livermore National Laboratory (LLNL)); Thomas 
 Marrinan, Silvio Rizzi, Joseph Insley, and Michael Papka (Argonne National
  Laboratory (ANL)); and Steve Petruzza (Utah State University)\n\nThis pap
 er presents a novel, general-purpose interface for adding interactive huma
 n-in-the-loop steering controls to existing simulation codes. The design i
 s agnostic to any specific in situ analysis and visualization library, tho
 ugh our reference implementation is based on Ascent -- a common in situ vi
 sualization and analysis library for large-scale simulations. Traditional 
 in situ analysis and visualization workflows are typically automated throu
 gh trigger mechanisms that execute as simulations reach certain predefined
  states (e.g. every N timesteps, simulation parameters become unstable, et
 c.). Although such automated in situ tasks suffice for many real-world app
 lications, we demonstrate that a complementary interactive interface can s
 ignificantly boost scientific productivity. With two use case simulations,
  we show how our approach enables scientists to pause and resume simulatio
 ns, allowing for interactive adjustments to the simulation state between t
 imesteps. This method avoids the overhead of cold restarting, enabling fas
 ter case setup, troubleshooting, and exploration.\n\nTag: Distributed Comp
 uting, Performance Evaluation and/or Optimization Tools, Scientific and In
 formation Visualization\n\nRegistration Category: Workshop Reg Pass\n\nSes
 sion Chairs: Nicola Ferrier (Argonne National Laboratory (ANL), University
  of Chicago); Axel Huebl (Lawrence Berkeley National Laboratory (LBNL)); M
 atthew Larsen (Luminary Cloud Inc); Will Usher (Luminary Cloud Inc); and S
 ean Ziegeler (US Department of Defense HPC Modernization Program, Departme
 nt of Defense High Performance Computing Modernization Program (DoD HPCMP)
 )\n\n
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