# compute temp/deform/eff command

## Syntax

``` LAMMPS
compute ID group-ID temp/deform/eff
```

-   ID, group-ID are documented in [compute](compute) command
-   temp/deform/eff = style name of this compute command

## Examples

``` LAMMPS
compute myTemp all temp/deform/eff
```

## Description

Define a computation that calculates the temperature of a group of
nuclei and electrons in the [electron force field](pair_eff) model,
after subtracting out a streaming velocity induced by the simulation box
changing size and/or shape, for example in a non-equilibrium MD (NEMD)
simulation. The size/shape change is induced by use of the [fix
deform](fix_deform) command. A compute of this style is created by the
[fix nvt/sllod/eff](fix_nvt_sllod_eff) command to compute the thermal
temperature of atoms for thermostatting purposes. A compute of this
style can also be used by any command that computes a temperature (e.g.,
[thermo_modify](thermo_modify), [fix npt/eff](fix_nh_eff)).

The calculation performed by this compute is exactly like that described
by the [compute temp/deform](compute_temp_deform) command, except that
the formula for the temperature includes the radial electron velocity
contributions, as discussed by the [compute temp/eff](compute_temp_eff)
command. Note that only the translational degrees of freedom for each
nuclei or electron are affected by the streaming velocity adjustment.
The radial velocity component of the electrons is not affected.

## Output info

This compute calculates a global scalar (the temperature) and a global
vector of length 6 (KE tensor), which can be accessed by indices 1\--6.
These values can be used by any command that uses global scalar or
vector values from a compute as input. See the [Howto
output](Howto_output) page for an overview of LAMMPS output options.

The scalar value calculated by this compute is \"intensive\". The vector
values are \"extensive\".

The scalar value will be in temperature [units](units). The vector
values will be in energy [units](units).

## Restrictions

This compute is part of the EFF package. It is only enabled if LAMMPS
was built with that package. See the [Build package](Build_package) page
for more info.

## Related commands

[compute temp/ramp](compute_temp_ramp), [fix deform](fix_deform), [fix
nvt/sllod/eff](fix_nvt_sllod_eff)

## Default

none