What mesh generator does Sundance use?
None, other than trivial meshers for lines and rectangles for use in testing. Third-party meshers such as Cubit or Triangle are better than anything I could write, so I have concentrated on reading meshes output from such codes. It is in principle possible to wrap such a mesher and link it into Sundance, but the configuration headaches that would entail make it not worth the effort. Thus, except for lines and rectangles, Sundance meshes are always read from files rather than generated at runtime.