fix_modify AtC control lumped_lambda_solve command — LAMMPS documentation

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# fix_modify AtC control lumped_lambda_solve command

## Syntax

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

- AtC fixID = ID of fix atc instance

- control lumped_lambda_solve = name of the AtC sub-command

- on or off = Toggles state of lumped matrix

## Examples

    fix_modify AtC control lumped_lambda_solve on

## Description

Command select whether to use or not use lumped matrix for lambda solve.

## Restrictions

None.

## Related AtC commands

- fix_modify AtC command overview

## Default

off