High-resolution seismic wave propagation using local time stepping

Handle URI:
http://hdl.handle.net/10754/623344
Title:
High-resolution seismic wave propagation using local time stepping
Authors:
Peter, Daniel ( 0000-0002-3397-5379 ) ; Rietmann, Max; Galvez, Percy; Ampuero, Jean Paul
Abstract:
High-resolution seismic wave simulations often require local refinements in numerical meshes to accurately capture e.g. steep topography or complex fault geometry. Together with explicit time schemes, this dramatically reduces the global time step size for ground-motion simulations due to numerical stability conditions. To alleviate this problem, local time stepping (LTS) algorithms allow an explicit time stepping scheme to adapt the time step to the element size, allowing nearoptimal time steps everywhere in the mesh. This can potentially lead to significantly faster simulation runtimes.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Extreme Computing Research Center
Conference/Event name:
High Performance Computing Saudi Arabia (HPC Saudi) 2017
Issue Date:
13-Mar-2017
Type:
Poster
Appears in Collections:
Posters; High Performance Computing Saudi Arabia (HPC Saudi) 2017

Full metadata record

DC FieldValue Language
dc.contributor.authorPeter, Danielen
dc.contributor.authorRietmann, Maxen
dc.contributor.authorGalvez, Percyen
dc.contributor.authorAmpuero, Jean Paulen
dc.date.accessioned2017-05-04T12:33:23Z-
dc.date.available2017-05-04T12:33:23Z-
dc.date.issued2017-03-13-
dc.identifier.urihttp://hdl.handle.net/10754/623344-
dc.description.abstractHigh-resolution seismic wave simulations often require local refinements in numerical meshes to accurately capture e.g. steep topography or complex fault geometry. Together with explicit time schemes, this dramatically reduces the global time step size for ground-motion simulations due to numerical stability conditions. To alleviate this problem, local time stepping (LTS) algorithms allow an explicit time stepping scheme to adapt the time step to the element size, allowing nearoptimal time steps everywhere in the mesh. This can potentially lead to significantly faster simulation runtimes.en
dc.titleHigh-resolution seismic wave propagation using local time steppingen
dc.typePosteren
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentExtreme Computing Research Centeren
dc.conference.dateMarch 13-15, 2017en
dc.conference.nameHigh Performance Computing Saudi Arabia (HPC Saudi) 2017en
dc.conference.locationKAUSTen
dc.contributor.institutionETH Zurich, Institute of Geophysics, Switzerlanden
dc.contributor.institutionAECOM, Seismology department, United Statesen
dc.contributor.institutionCalifornia Institute of Technology, Seismological Laboratory, United Statesen
kaust.authorPeter, Danielen
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