In this work we present the high performance open-source numerical code SPEED (Spectral Elements in Elastodynamics with Discontinuous Galerkin) for seismic wave propagation analyses in complex media. Based on a non-conforming high-order Discontinuous Galerkin approximation, along with efficient and scalable algorithms, the code allows the evaluation of the typically multi-scale wave propagation problems in its complexity, from far-field to near-field and from near-field to soil-structure interaction effects.
Validation benchmarks are illustrated to check the accuracy, stability and performance features of the parallel kernel. The application examples clearly show that such an approach
may enable significant advantages for a variety of engineering problems featuring multi-scale seismic wave propagation phenomena.