  Synchronization is an ubiquitous phenomenon in dynamical systems of networked
oscillators. While it is often a goal to achieve, in some context one would
like to decrease it, e.g., although synchronization is essential to the good
functioning of brain dynamics, hyper-synchronization can induce problems like
epilepsy seizures. Motivated by this problem, scholars have developed pinning
control schemes able to decrease synchronization in a system. Focusing on one
of these methods, the goal of the present work is to analyse which is the best
way to select the controlled nodes, i.e. the one that guarantees the lower
synchronization rate. We show that hubs are generally the most advantageous
nodes to control, especially when the degree distribution is heterogeneous.
Nevertheless, pinning a too large number of hubs is in general not an
appropriate choice. Our results are in line with previous works that studied
pinning control aimed to increase synchronization. These observations shed
light on an interesting universality of good practice of node selection
disregarding the actual goal of the control scheme.
