Scoreboarding
Scoreboarding or scoreboard method is an algorithm for implementing dynamic scheduling in processors . At a central point, in the scoreboard (also point table ), it is checked whether there are dependencies on operating resources , data or control flow dependencies . An instruction is only released for execution when none of these dependencies exist.
However, since, in contrast to the Tomasulo algorithm, no register renaming is carried out with scoreboarding , existing functional units can only be better utilized if the data is not counter-dependent or output- dependent .