Starting ultraFluidX with the parameter -h (ultraFluidX -h) exposes additional command line options and special ultraFluidX functions without license checkout in the terminal.
A helpful option is the specification of a separate output folder or path via the option -o, where a location, such as output, will automatically be created if it will be a new folder in the current directory:
mpirun -np 5 ultraFluidX case.xml –o output