a minimum value and :ref:`gmx mdrun` might increase it, unless
it is set to 1. With parallel simulations and/or non-bonded
force calculation on the GPU, a value of 20 or 40 often gives
- the best performance.
+ the best performance. With energy minimization this parameter
+ is not used as the pair list is updated when at least one atom
+ has moved by more than half the pair list buffer size.
.. mdp-value:: 0