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LOCATION:506
DTSTART;TZID=America/Denver:20231112T094000
DTEND;TZID=America/Denver:20231112T100000
UID:submissions.supercomputing.org_SC23_sess417_misc317@linklings.com
SUMMARY:Toward the Development of a Comprehensive Digital Twin of an Exasc
 ale Supercomputer
DESCRIPTION:Wes Brewer (Oak Ridge National Laboratory (ORNL))\n\nOver the 
 past year, we have embarked upon an ambitious initiative to develop a comp
 rehensive digital twin of the Frontier supercomputer. This twin includes: 
 3D asset modeling with virtual and augmented reality capabilities, telemet
 ry data assimilation, AI/ML integration, simulations, and reinforcement le
 arning for optimization. Key simulations under development include: (1) a 
 transient simulation of the thermo-fluid cooling system from cooling tower
  to cold plate, (2) a rectifier loss model predicting heat generation and 
 rectification losses, (3) a job scheduling simulator, and (4) a parallel d
 iscrete-event simulator to study network congestion. This digital twin off
 ers insights into operational strategies, "what-if" scenarios, as well as 
 elucidates complex, cross-disciplinary transient behaviors; it also serves
  as a design tool for future system prototyping. Built on an open software
  stack (Modelica, SST Macro, Unreal Engine) with an aim to foster communit
 y-driven development, we have formed a partnership with CSC Finland to stu
 dy application fingerprinting on LUMI and are in active discussions with a
  number of other supercomputer centers who have expressed interest in coll
 aborating for future development.\n\nTag: Codesign, Hardware Technologies,
  Large Scale Systems, Software Engineering\n\nRegistration Category: Works
 hop Reg Pass\n\nSession Chairs: Jim Brandt (Sandia National Laboratories);
  Ann Gentile (Sandia National Laboratories); Michael Jantz (University of 
 Tennessee, Knoxville); Terry Jones (Oak Ridge National Laboratory (ORNL));
  and Estela Suarez (Jülich Supercomputing Centre (JSC), University of Bonn
 )\n\n
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