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LOCATION:Singapore Room
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UID:submissions.pasc-conference.org_PASC22_sess147_msa251@linklings.com
SUMMARY:Supercomputing of Earthquakes and the Seismic Cycle
DESCRIPTION:Minisymposium\n\nSupercomputing of Earthquakes and the Seismic
  Cycle\n\nGabriel, Uphoff, May, Schliwa\n\nEarthquake rupture dynamics and
  seismic shaking simulations routinely utilize large supercomputers. Yet, 
 simulations of the seismic cycle - sequences of earthquakes and aseismic s
 lip - are challenging and have not been extensively developed for HPC envi
 ronments. I will first summarize recent advances and applications of multi
 -physics modeling of earthquake dynamics using SeisSol. Next, I will prese
 nt Tandem for modeling the seismic cycle IN MODEL DOMAINS including more t
 han one intersecting and curved faults, complex geometries and the heterog
 eneity of the subsurface. Tandem uses a symmetric interior penalty discont
 inuous Galerkin (SIPG) method and method accommodates two- and three-dimen
 sional domains, is of arbitrary order, handles sub-element variations in m
 aterial properties and supports isoparametric elements, i.e. high-order re
 presentations of the exterior and interior boundaries and interfaces. Tand
 em is open-source and utilizes highly efficient kernels, is inherently par
 allel and well suited to perform high resolution simulations on large scal
 e distributed memory architectures. Further flexibility is provided by opt
 ionally defining the displacement evaluation via a discrete Green's functi
 on, using algorithmically optimal and scalable sparse parallel solvers and
  preconditioners. Tandem exploits advantages of both the boundary integral
  and volumetric methods and is an interesting avenue to pursue in the futu
 re for extreme scale 3D SEAS simulations.\n\nDomain: Climate, Weather and 
 Earth Sciences, Computer Science and Applied Mathematics, Physics
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