Section Calculation Modes::Optimal Control
The initial field to start the optimization search is usually given in the inp file, through a TDExternalFields block. However, you can start from a random guess if you set this variable to true.
Note, however, that this is only valid for the "direct" optimization schemes; moreover
you still need to provide a TDExternalFields block.
call parse_variable(namespace, 'OCTRandomInitialGuess', .false., oct%random_initial_guess)