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lammps/examples/pour/log.pour.21May08.linux.4
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LAMMPS (21 May 2008)
# Pour granular particles into chute container, then induce flow
atom_style granular
boundary p p fm
newton off
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/history 2000.0 50.0 0.5 0
timestep 0.001
fix 1 all nve/sphere
fix 2 all gravity 1.0 spherical 0.0 -180.0
fix zlower all wall/gran zplane 0.0 2000.0 50.0 0.5
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 = 3.14935 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 1424.6738 13.243803 6600
4000 804 1725.4319 47.250762 6600
5000 804 1605.2015 60.084404 6600
6000 804 1371.3425 69.247899 6600
7000 1206 1524.3574 74.071529 6600
8000 1206 1418.8999 60.727347 6600
9000 1206 1258.0064 51.943448 6600
10000 1608 1391.6571 50.505619 6600
11000 1608 1232.8265 50.877674 6600
12000 1608 1195.2804 46.358334 6600
13000 2010 1315.8232 49.633638 6600
14000 2010 1171.0007 43.965336 6600
15000 2010 984.42685 42.714353 6600
16000 2412 1028.8418 41.732668 6600
17000 2412 1016.9257 44.039977 6600
18000 2412 911.33181 36.804113 6600
19000 2814 1002.0117 38.864202 6600
20000 2814 960.38825 45.167894 6600
21000 2814 747.55191 45.970768 6600
22000 2814 523.67155 43.946925 6600
23000 3000 438.80433 35.866677 6600
24000 3000 350.60693 23.380222 6600
25000 3000 232.00186 22.76523 6600
Loop time of 12.3364 on 4 procs for 25000 steps with 3000 atoms
Pair time (%) = 3.62034 (29.3469)
Neigh time (%) = 0.423409 (3.4322)
Comm time (%) = 4.89279 (39.6614)
Outpt time (%) = 0.0863795 (0.700201)
Other time (%) = 3.31347 (26.8593)
Nlocal: 750 ave 763 max 730 min
Histogram: 1 0 0 0 1 0 0 0 0 2
Nghost: 393.25 ave 404 max 387 min
Histogram: 1 0 2 0 0 0 0 0 0 1
Neighs: 3584.25 ave 3654 max 3500 min
Histogram: 1 0 0 0 1 0 0 1 0 1
Total # of neighbors = 14337
Ave neighs/atom = 4.779
Neighbor list builds = 1151
Dangerous builds = 0
unfix ins
fix 2 all gravity 1.0 chute 26.0
run 25000
Memory usage per processor = 9.68018 Mbytes
Step Atoms KinEng 1 Volume
25000 3000 232.00186 22.76523 6600
26000 3000 106.03482 19.110968 6600
27000 3000 117.35702 11.863221 6600
28000 3000 210.16302 11.734546 6600
29000 3000 364.51031 13.978019 6600
30000 3000 615.67035 19.096214 6600
31000 3000 903.47015 29.320372 6600
32000 3000 1251.3923 32.674763 6600
33000 3000 1705.6441 43.39215 6600
34000 3000 2196.1688 50.259234 6600
35000 3000 2774.3046 56.750935 6600
36000 3000 3390.0639 66.826889 6600
37000 3000 4108.0306 80.340967 6600
38000 3000 4931.8421 82.362753 6600
39000 3000 5798.3775 99.330342 6600
40000 3000 6729.1245 110.92274 6600
41000 3000 7780.6383 123.43956 6600
42000 3000 8927.2592 135.00244 6600
43000 3000 10032.341 144.35759 6600
44000 3000 11220.512 163.73946 6600
45000 3000 12527.526 182.56044 6600
46000 3000 14021.788 208.42883 6600
47000 3000 15724.627 221.7706 6600
48000 3000 17394.628 231.95039 6600
49000 3000 19056.668 255.27889 6600
50000 3000 20908.007 287.26263 6600
Loop time of 18.252 on 4 procs for 25000 steps with 3000 atoms
Pair time (%) = 7.67562 (42.0535)
Neigh time (%) = 0.668073 (3.66027)
Comm time (%) = 5.45432 (29.8833)
Outpt time (%) = 0.128624 (0.704711)
Other time (%) = 4.3254 (23.6982)
Nlocal: 750 ave 760 max 743 min
Histogram: 1 0 1 1 0 0 0 0 0 1
Nghost: 406 ave 408 max 402 min
Histogram: 1 0 0 0 0 0 1 0 0 2
Neighs: 3714 ave 3765 max 3659 min
Histogram: 1 0 0 0 1 1 0 0 0 1
Total # of neighbors = 14856
Ave neighs/atom = 4.952
Neighbor list builds = 850
Dangerous builds = 0
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