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Local time stepping on high performance computing architectures : mitigating CFL bottlenecks for large-scale wave propagation

Rietmann, Max ; Schenk, Olaf (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2015 ; 2015INFO006.

Modeling problems that require the simulation of hyperbolic PDEs (wave equations) on large heterogeneous domains have potentially many bottlenecks. We attack this problem through two techniques: the massively parallel capabilities of graphics processors (GPUs) and local time stepping (LTS) to mitigate any CFL bottlenecks on a multiscale mesh. Many modern supercomputing centers are installing...