LAMMPS (6 Oct 2016)
# LAMMPS benchmark of granular flow
# chute flow of 32000 atoms with frozen base at 26 degrees

units		lj
atom_style	sphere
boundary	p p fs
newton		off
comm_modify	vel yes

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

pair_style	gran/hooke/history 200000.0 NULL 50.0 NULL 0.5 0
pair_coeff	* *

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/sphere

compute		1 all erotate/sphere
thermo_style	custom step atoms ke c_1 vol
thermo_modify	norm no
thermo		100

run		100
Neighbor list info ...
  2 neighbor list requests
  update every 1 steps, delay 0 steps, check yes
  max neighbors/atom: 2000, page size: 100000
  master list distance cutoff = 1.1
  ghost atom cutoff = 1.1
  binsize = 0.55 -> bins = 73 37 68
Memory usage per processor = 16.0904 Mbytes
Step Atoms KinEng c_1 Volume 
       0    32000    784139.13    1601.1263    29833.783 
     100    32000    784292.08    1571.0968    29834.707 
Loop time of 0.534174 on 1 procs for 100 steps with 32000 atoms

Performance: 1617.451 tau/day, 187.205 timesteps/s
99.8% CPU use with 1 MPI tasks x no OpenMP threads

MPI task timing breakdown:
Section |  min time  |  avg time  |  max time  |%varavg| %total
---------------------------------------------------------------
Pair    | 0.33346    | 0.33346    | 0.33346    |   0.0 | 62.43
Neigh   | 0.043902   | 0.043902   | 0.043902   |   0.0 |  8.22
Comm    | 0.018391   | 0.018391   | 0.018391   |   0.0 |  3.44
Output  | 0.00022411 | 0.00022411 | 0.00022411 |   0.0 |  0.04
Modify  | 0.11666    | 0.11666    | 0.11666    |   0.0 | 21.84
Other   |            | 0.02153    |            |       |  4.03

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
Total wall time: 0:00:00
