BEGIN:VCALENDAR
VERSION:2.0
PRODID:Linklings LLC
BEGIN:VTIMEZONE
TZID:America/Denver
X-LIC-LOCATION:America/Denver
BEGIN:DAYLIGHT
TZOFFSETFROM:-0700
TZOFFSETTO:-0600
TZNAME:MDT
DTSTART:19700308T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0600
TZOFFSETTO:-0700
TZNAME:MST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260422T000711Z
LOCATION:403-404
DTSTART;TZID=America/Denver:20231116T143000
DTEND;TZID=America/Denver:20231116T150000
UID:submissions.supercomputing.org_SC23_sess182_pap133@linklings.com
SUMMARY:Leveraging the Compute Power of Two HPC Systems for Higher-Dimensi
 onal Grid-Based Simulations with the Widely-Distributed Sparse Grid Combin
 ation Technique
DESCRIPTION:Theresa Pollinger, Alexander Van Craen, Christoph Niethammer, 
 Marcel Breyer, and Dirk Pflüger (University of Stuttgart)\n\nThis paper pr
 esents the core concepts of the widely-distributed combination technique, 
 which allows us to use the compute power and memory of more than one HPC s
 ystem for the same simulation. We apply the sparse-grid combination techni
 que to a six-dimensional advection problem serving as a proxy for plasma s
 imulations. The full-grid solution approximated by the combination techniq
 ue would contain ≈5ZB if computed with conventional grid-based methods. Th
 e combination-technique simulation operates on ≈988GB plus the supporting 
 sparse grid data structures. We propose a new approach to divide the compu
 te load, requiring only 76GB to be exchanged. Based on this, we have reali
 zed the first synchronous grid-based simulation using two HPC systems, the
  Tier-0 supercomputers Hawk and SuperMUC-NG. The simulation is computed at
  an average overhead of ≈35% (108s per combination step) for file-I/O and 
 transfer. The presented concepts apply to any pair of HPC systems if high-
 speed data transfer is possible.\n\nTag: Algorithms, Cloud Computing, Dist
 ributed Computing, Heterogeneous Computing, Large Scale Systems, State of 
 the Practice\n\nRegistration Category: Tech Program Reg Pass\n\nReproducib
 ility Badges: Artifact Available, Artifact Functional\n\nSession Chair: Ma
 hdieh Ghazimirsaeed (Advanced Micro Devices (AMD) Inc)\n\n
END:VEVENT
END:VCALENDAR