Instructions on how to install and use SPECFEM2D are available in the PDF manual located in directory doc/USER_MANUAL. Main "historical" developers: Dimitri Komatitsch and Jeroen Tromp (there are currently many more!) For a quick test, run the default example with these commands: ./configure FC=gfortran make all ./bin/xmeshfem2D ./bin/xspecfem2D and check the output files in ./OUTPUT_FILES/