Chapter 21

High performance seismic simulations

Abstract

Results using SeisSol, which simulates wave propagation and dynamic ruptures based on the arbitrary high-order accurate derivative discontinuous Galerkin method, on Knights Landing are discussed. The unique combination of the described individual steps allows the acceleration of seismic simulations. Data reorganization and low-level matrix kernel implementations are key.

Keywords

High-order; ADER; Discontinuous Galerkin; Finite element method; Vectorization; Small DGEMM; Local time stepping; Explicit time stepping; Hyperbolic equations; Code generation

What’s new with Knights Landing in this chapter

Example of application tuning for Knights Landing, including flat and cache memory ...

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