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DTSTAMP:20191206T142455Z
LOCATION:Booth N-230
DTSTART;TZID=Europe/Stockholm:20180626T151500
DTEND;TZID=Europe/Stockholm:20180626T154500
UID:isc_hpc_ISC High Performance 2018_sess144_proj106@linklings.com
SUMMARY:(PP17) Efficient Time Stepping in Partitioned Multi-Physics
DESCRIPTION:Project Poster\n\n(PP17) Efficient Time Stepping in Partitione
 d Multi-Physics\n\nRüth\n\nThe ExaFSA project, part of the DFG priority pr
 ogram SPPEXA, aims at efficient and scalable simulations of fluid-structur
 e-acoustics (FSA) interaction problems. Parallel solvers and HPC algorithm
 s are needed to solve this multi-scale multi-physics problem.\n\nAn import
 ant building block is the coupling library preCICE that allows combining a
 lready existing highly efficient expert solvers in a partitioned black-box
  approach. However, FSA is a multi-physics multi-scale problem that leads 
 to an inhomogeneous setup: The solvers may use non-matching meshes and dis
 cretization techniques to handle their respective problem in the most effi
 cient way -- both in the spatial and temporal domain (multi-scale). This l
 eads to non-optimal performance of the individual solvers and, thus, of th
 e coupled simulation code.\n\npreCICE provides methods for a correct treat
 ment of non-matching spatial meshes, but it currently lacks advanced techn
 iques for the treatment of the temporal dimension. The implementation of e
 fficient time stepping in the partitioned approach is the goal of the pres
 ented research project. Different problems for time stepping in the contex
 t of a partitioned approach, such as reduced order and stability of the sc
 heme, are described and a candidate solution following the preCICE black-b
 ox approach is presented.\n\nPasses: Conference Pass, Exhibition Pass, Exa
 scale Systems, Parallel Algorithms, Parallel Applications, Scientific Soft
 ware Development\n\nTag: Conference Pass, Exhibition Pass, Exascale System
 s, Parallel Algorithms, Parallel Applications, Scientific Software Develop
 ment
URL:https://2018.isc-program.com/presentation/?id=proj106&sess=sess144
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