The actual application used was Glide, http://www.schrodinger.com/products/14/5/ http://www.schrodinger.com/products/14/5/, which is likely Fortran or C++ given

The actual application used was Glide, http://www.schrodinger.com/products/14/5/ http://www.schrodinger.com/products/14/5/, which is likely Fortran or C++ given the type of app. Don't know what Cycle's core sofware for managing the whole infrastructure is written in, but they use a lot of Chef and schedulers like Torque or Condor in addition to Boto to orchestrate the EC2 side.