LAMMPS (5 Oct 2007)
# LAMMPS benchmark of granular flow
# chute flow of 32000 atoms with frozen base at 26 degrees

units		lj
atom_style	granular
boundary	p p fs
newton		off

read_data	data.chute
  orthogonal box = (0 0 0) to (40 20 37.2886)
  1 by 1 by 1 processor grid
  32000 atoms
  32000 velocities

pair_style	gran/history 200000.0 50.0 0.5 0

neighbor	0.1 bin
neigh_modify	every 1 delay 0

timestep	0.0001

group		bottom type 2
912 atoms in group bottom
group		active subtract all bottom
31088 atoms in group active
neigh_modify	exclude group bottom bottom

fix		1 all gravity 1.0 chute 26.0
fix		2 bottom freeze
fix		3 active nve/gran

thermo_style	granular
thermo		100

run		100
Memory usage per processor = 32.9693 Mbytes
Step Atoms KinEng RotKEgrn Volume 
       0    32000    784139.13    1601.1263     29830.88 
     100    32000    784289.99    1571.0137    29831.804 
Loop time of 1.91739 on 1 procs for 100 steps with 32000 atoms

Pair  time (%) = 1.09812 (57.2715)
Neigh time (%) = 0.0856261 (4.46577)
Comm  time (%) = 0.0961592 (5.01512)
Outpt time (%) = 0.000524998 (0.0273809)
Other time (%) = 0.63696 (33.2202)

Nlocal:    32000 ave 32000 max 32000 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Nghost:    5463 ave 5463 max 5463 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Neighs:    115133 ave 115133 max 115133 min
Histogram: 1 0 0 0 0 0 0 0 0 0

Total # of neighbors = 115133
Ave neighs/atom = 3.59791
Neighbor list builds = 2
Dangerous builds = 0