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lammps/examples/pour/log.pour.15Jan10.linux.4
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LAMMPS (15 Jan 2010)
# Pour granular particles into chute container, then induce flow
atom_style granular
boundary p p fm
newton off
communicate single vel yes
region reg block -10 10 -10 10 -0.5 16 units box
create_box 1 reg
Created orthogonal box = (-10 -10 -0.5) to (10 10 16)
2 by 2 by 1 processor grid
neighbor 0.2 bin
neigh_modify delay 0
# IMPORTANT NOTE: these values of stiffness (2000) and timestep (0.001)
# are used in this example file to produce a quick simulation and movie.
# More appropriate values for realistic simulations would be
# k = 2.0e5 and dt = 0.0001, as in bench/in.chute.
pair_style gran/hooke/history 2000.0 NULL 50.0 NULL 0.5 0
pair_coeff * *
timestep 0.001
fix 1 all nve/sphere
fix 2 all gravity 1.0 spherical 0.0 -180.0
fix zlower all wall/gran 2000.0 NULL 50.0 NULL 0.5 0 zplane 0.0 2000.0
region slab block -9.0 9.0 -9.0 9.0 10.0 15.0 units box
fix ins all pour 3000 1 300719 vol 0.13 50 region slab
Particle insertion: 402 every 3162 steps, 3000 by step 22135
compute 1 all erotate/sphere
thermo_style custom step atoms ke c_1 vol
thermo 1000
thermo_modify lost ignore norm no
compute_modify thermo_temp dynamic yes
dump id all atom 1000 dump.pour
run 25000
Memory usage per processor = 9.02398 Mbytes
Step Atoms KinEng 1 Volume
0 0 -0 0 6600
1000 402 779.98578 0 6600
2000 402 1424.4252 0 6600
3000 402 1425.0863 12.9927 6600
4000 804 1724.8627 47.36161 6600
5000 804 1599.9516 63.808734 6600
6000 804 1359.1774 63.495338 6600
7000 1206 1532.7896 68.602762 6600
8000 1206 1403.019 62.696462 6600
9000 1206 1246.5766 52.235655 6600
10000 1608 1384.2206 51.017669 6600
11000 1608 1247.6415 50.760042 6600
12000 1608 1195.7464 41.478899 6600
13000 2010 1319.9158 53.65564 6600
14000 2010 1195.3567 44.039046 6600
15000 2010 978.10764 39.976633 6600
16000 2412 1050.2028 45.306777 6600
17000 2412 1042.2556 39.814723 6600
18000 2412 894.58742 40.161025 6600
19000 2814 1009.3277 35.382235 6600
20000 2814 959.77476 43.212143 6600
21000 2814 757.47849 39.534175 6600
22000 2814 516.06689 40.398841 6600
23000 3000 425.8695 34.108574 6600
24000 3000 364.2896 21.08092 6600
25000 3000 233.88996 22.425122 6600
Loop time of 11.8692 on 4 procs for 25000 steps with 3000 atoms
Pair time (%) = 2.89043 (24.3523)
Neigh time (%) = 0.429167 (3.6158)
Comm time (%) = 4.96078 (41.7952)
Outpt time (%) = 0.0948666 (0.799264)
Other time (%) = 3.494 (29.4374)
Nlocal: 750 ave 756 max 739 min
Histogram: 1 0 0 0 0 1 0 0 0 2
Nghost: 393.25 ave 396 max 391 min
Histogram: 1 0 1 0 0 0 1 0 0 1
Neighs: 3579.5 ave 3599 max 3555 min
Histogram: 1 0 0 1 0 0 0 0 1 1
Total # of neighbors = 14318
Ave neighs/atom = 4.77267
Neighbor list builds = 1152
Dangerous builds = 0
unfix ins
fix 2 all gravity 1.0 chute 26.0
run 25000
Memory usage per processor = 9.68015 Mbytes
Step Atoms KinEng 1 Volume
25000 3000 233.88996 22.425122 6600
26000 3000 95.798714 17.862426 6600
27000 3000 89.20664 12.04109 6600
28000 3000 153.95767 10.639392 6600
29000 3000 259.61171 11.359565 6600
30000 3000 405.29433 16.92367 6600
31000 3000 593.74006 20.533913 6600
32000 3000 849.78176 26.221939 6600
33000 3000 1207.1697 29.651312 6600
34000 3000 1640.0393 44.321538 6600
35000 3000 2184.3996 50.654217 6600
36000 3000 2748.733 57.776259 6600
37000 3000 3431.8372 72.462448 6600
38000 3000 4208.2247 81.621985 6600
39000 3000 5037.035 87.875437 6600
40000 3000 5968.7679 102.80889 6600
41000 3000 6988.042 127.50415 6600
42000 3000 8046.5759 128.6489 6600
43000 3000 9218.0921 138.30481 6600
44000 3000 10406.603 149.42698 6600
45000 3000 11720.813 177.18618 6600
46000 3000 13072.246 188.23186 6600
47000 3000 14497.861 194.91929 6600
48000 3000 16005.838 231.43677 6600
49000 3000 17686.896 235.61473 6600
50000 3000 19398.978 258.59144 6600
Loop time of 17.7707 on 4 procs for 25000 steps with 3000 atoms
Pair time (%) = 6.27581 (35.3155)
Neigh time (%) = 0.622012 (3.50021)
Comm time (%) = 6.27691 (35.3217)
Outpt time (%) = 0.142299 (0.800749)
Other time (%) = 4.45368 (25.0619)
Nlocal: 750 ave 757 max 743 min
Histogram: 1 0 0 0 1 1 0 0 0 1
Nghost: 400.5 ave 408 max 393 min
Histogram: 1 1 0 0 0 0 0 0 1 1
Neighs: 3755 ave 3821 max 3701 min
Histogram: 1 1 0 0 0 0 1 0 0 1
Total # of neighbors = 15020
Ave neighs/atom = 5.00667
Neighbor list builds = 811
Dangerous builds = 0
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