Keywords: manual

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## energy_data.nlogn_use -- select non-bond list generation algorithm

> Before calculating dynamic non-bonded restraints, MODELLER determines which of the several routines is most appropriate and efficient for calculating the non-bonded atom pairs list. The user can use this variable to influence the selection, of either a straightforward search or a cell-based algorithm which has dependency of CPU time versus size . The latter algorithm is used when the maximal difference in residue indices of the atoms in the current dynamic restraints is larger than energy_data.nlogn_use or when the box size for this algorithm would have to be larger than 8.