Program specfem3D from SPECFEM3D_GLOBE is a 3-D spectral-element solver for the Earth.
It uses a mesh generated by program meshfem3D.
Main "historical" authors: Dimitri Komatitsch and Jeroen Tromp (there are currently many more!)
Instructions on how to install and use SPECFEM3D_GLOBE are available
in the PDF manual located in directory doc/USER_MANUAL.
Development is hosted on GitHub in the geodynamics/specfem3d_globe repository.
Git submodules for data files and examples are hosted on the CIG servers at: