LAMMPS (17 Feb 2022)
# 3d Lennard-Jones melt - MDI engine script

variable	x index 5
variable	y index 5
variable	z index 5

units		lj
atom_style	atomic

lattice		fcc 0.8442
Lattice spacing in x,y,z = 1.6795962 1.6795962 1.6795962
region		box block 0 $x 0 $y 0 $z
region		box block 0 5 0 $y 0 $z
region		box block 0 5 0 5 0 $z
region		box block 0 5 0 5 0 5
create_box	1 box
Created orthogonal box = (0 0 0) to (8.397981 8.397981 8.397981)
  1 by 2 by 2 MPI processor grid
create_atoms	1 box
Created 500 atoms
  using lattice units in orthogonal box = (0 0 0) to (8.397981 8.397981 8.397981)
  create_atoms CPU = 0.001 seconds
mass		1 1.0

pair_style	lj/cut 2.5
pair_coeff	1 1 1.0 1.0 2.5

neighbor	0.3 bin
neigh_modify	delay 0 every 1 check yes

mdi             engine
WARNING: No fixes with time integration, atoms won't move (../verlet.cpp:60)
  generated 0 of 0 mixed pair_coeff terms from geometric mixing rule
Neighbor list info ...
  update every 1 steps, delay 0 steps, check yes
  max neighbors/atom: 2000, page size: 100000
  master list distance cutoff = 2.8
  ghost atom cutoff = 2.8
  binsize = 1.4, bins = 6 6 6
  1 neighbor lists, perpetual/occasional/extra = 1 0 0
  (1) pair lj/cut, perpetual
      attributes: half, newton on
      pair build: half/bin/atomonly/newton
      stencil: half/bin/3d
      bin: standard
Per MPI rank memory allocation (min/avg/max) = 3.109 | 3.109 | 3.109 Mbytes
Step Temp E_pair E_mol TotEng Press 
       0            0   -6.7733681            0   -6.7733681   -6.2353173 
       1            0   -6.7699814            0   -6.7699814   -6.2120481 
       2            0   -6.7596844            0   -6.7596844   -6.1418368 
       3            0   -6.7420029            0   -6.7420029   -6.0231905 
       4            0   -6.7161132            0   -6.7161132   -5.8534999 
       5            0   -6.6808361            0   -6.6808361   -5.6291449 
Total wall time: 0:00:01