geodynamics/specfem2d — pull request #170 by xiezhinan (2014-12-31 05:48:21+00:00)
Title: fix the need to use small time step when Stacey is used.

fix the current way for excluding corners to make sure there is no contradiction on the normal when Stacey ABC is used, which did not work. Since for different IEDGE array "codeabs(IEDGE,ispecabs)" is independent of each other. Thus it leads us to use smaller time step when Stacey is used.