I'm looking for a right tool to do simulation of elastic wave propagation in the domain of the subsurface within around underground tunnel. There is commonly used free software such as SPECFEM3D, which implements the spectral element method, for doing the job. However, as my colleage from the geophysics department at the Ruhr-University told me that it took nearly two days for one run of simulation on a computer cluster of 100 cores. I don't have such a computer cluster or supercomputer at my group. You have shown very attractive results of the DG on GPUs. I have the following questions that I'd like to ask you. 1. Does 'hedge', which implements the Discontinueous Galerkin, have the capability of simulating elastic wave propagation for a 2D/ 3D structural model taking into account absorbing boundaries, attenuation, etc.? In short, can one get a seismogram as a result of simulation when the model (dimensions, velocity profiles, source points, boundaries) has been defined?

2. If not, could you give me some comments on the possibility of program extension? I think that 'hedge' could be a good tool for simulating seismic wave propagation of a relatively small domain for one who does not have the high computing facility at hand - which is my case.