# fix_modify AtC decomposition command

## Syntax

    fix_modify <AtC fixID> decomposition <type>

-   AtC fixID = ID of [fix atc](fix_atc) instance
-   decomposition = name of the AtC sub-command
-   type = *replicated_memory* or *distributed_memory*

## Examples

``` LAMMPS
fix_modify AtC decomposition distributed_memory
```

## Description

Command for assigning the distribution of work and memory for parallel
runs. With *replicated_memory* the nodal information is replicated on
each processor, and with *distributed_memory* only the owned nodal
information kept on each processor. The *replicated_memory* option is
most appropriate for simulations were the number of nodes is much
smaller than the number of atoms.

## Restrictions

None.

## Related AtC commands

-   [fix_modify AtC command overview](atc_fix_modify)

## Default

replicated_memory