The command _slic -n_ will start the simulator in interactive mode, where Geant4 commands can be typed into the terminal. When you use this command, you should see the Geant4 prompt. {format} PreInit> {format} The "PreInit" means that the geometry and physics have not been loaded, so Geant4 is in a pre-initialization state. If you specify the geometry file with the interactive mode, then the simulator will be intialized for you. {noformat} slic -g mygeom.lcdd -n {noformat} This command should result in the idle state. {noformat} Idle> {noformat} From the idle state, it is possible to start the simulation by using the _/run/beamOn_ command, or execute other commands that are valid for the idle state. |