1.	Build adenylate_mobilities.cpp.
2.  	Run resulting executable.  
3.  	Load ThreeAdenylates.pdb .
4.  	Open vmd.  Load adenylates.vmd state file.
5.	In the VMD menu bar, click Extensions -> Simulation -> IMD Connect (NAMD).
6.      Fill  in Hostname = localhost, Port = 3000, timestep transfer rate = 1, timestep keep rate 1.  Click connect.
7.  	Enjoy the simulation!  Note that there are two additional methods for outputting the trajectory, see comments in program file.