Lito Yap
Ansys Employee
Running Lumerical script.lsf files will require a GUI interface/environment. This is run using the CAD/GUI executable not the engine executable (default install path shown below):
/opt/lumerical/v221/bin/fdtd-solutions -nw -trust-script -run scriptfile.lsf
Does the cluster allow a GUI connection/interface? Otherwise, for headless cluster (no GUI) you can only run the simulation file on the cluster then do the pre/post on the CAD/GUI on your local computer as shown here.