FLEUR supports many different parameters to controll the simulation stored in an file 'inp.xml'. Hence, to create this file and to fill it with defaults a utility program called 'inpgen' is provided.
In contrast to FLEUR inpgen operates on a minimal input. As an example we
provide you with such a simple input for bulk Silicon
You might want to check the corresponding documentation to see all the different inputs 'inpgen' supports.
Hence in a typical FLEUR workflow will start with running 'inpgen'.