fix_modify AtC control localized_lambda command — LAMMPS documentation

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# fix_modify AtC control localized_lambda command

## Syntax

    fix_modify <AtC fixID> control localized_lambda <on|off>

- AtC fixID = ID of fix atc instance

- control localized_lambda = name of the AtC sub-command

- on or off = Toggles state of localization algorithm

## Examples

    fix_modify AtC control localized_lambda on

## Description

Turns the localization algorithms on or off for control algorithms to restrict the influence of FE coupling or boundary conditions to a region near the boundary of the MD region. Control algorithms will not affect atoms in elements not possessing faces on the boundary of the region. Flux-based control is localized via row-sum lumping while quantity control is done by solving a truncated matrix equation.

## Restrictions

None.

## Related AtC commands

- fix_modify AtC command overview

## Default

off