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lammps/examples/USER/openmp/log.pour
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LAMMPS (5 Jun 2010-ICMS)
# 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
using 1 OpenMP thread(s) per MPI task
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
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 1246.5753 52.231964 6600
10000 1608 1384.5899 51.460162 6600
11000 1608 1242.4905 50.743602 6600
12000 1608 1198.1344 42.09716 6600
13000 2010 1320.2254 49.212225 6600
14000 2010 1168.1914 43.237369 6600
15000 2010 1000.9246 40.611044 6600
16000 2412 1042.1809 42.820883 6600
17000 2412 1017.7603 37.930359 6600
18000 2412 917.13682 36.262539 6600
19000 2814 1006.7645 37.65608 6600
20000 2814 939.29053 42.983872 6600
21000 2814 767.83153 42.743923 6600
22000 2814 519.02126 40.424847 6600
23000 3000 431.76254 31.764353 6600
24000 3000 368.73265 25.562394 6600
25000 3000 213.32319 26.876083 6600
Loop time of 3.34216 on 4 procs / 1 threads for 25000 steps with 3000 atoms
Pair time (%) = 1.5652 (46.8321)
Neigh time (%) = 0.457273 (13.682)
Comm time (%) = 0.437542 (13.0916)
Outpt time (%) = 0.000629485 (0.0188347)
Other time (%) = 0.88151 (26.3755)
Nlocal: 750 ave 768 max 738 min
Histogram: 1 0 1 1 0 0 0 0 0 1
Nghost: 391.5 ave 400 max 380 min
Histogram: 1 0 0 0 1 0 0 0 1 1
Neighs: 3589 ave 3630 max 3557 min
Histogram: 1 1 0 0 0 1 0 0 0 1
Total # of neighbors = 14356
Ave neighs/atom = 4.78533
Neighbor list builds = 1151
Dangerous builds = 0
dump id all xyz 1000 pour.xyz
unfix ins
fix 2 all gravity 1.0 chute 26.0
run 25000
Memory usage per processor = 9.72651 Mbytes
Step Atoms KinEng 1 Volume
25000 3000 213.32319 26.876083 6600
26000 3000 110.32635 17.284813 6600
27000 3000 106.97004 12.086035 6600
28000 3000 194.79068 12.202064 6600
29000 3000 316.45445 14.340477 6600
30000 3000 486.66006 19.245664 6600
31000 3000 720.5346 24.86945 6600
32000 3000 1020.0089 29.912815 6600
33000 3000 1386.0874 37.35596 6600
34000 3000 1844.1066 44.113175 6600
35000 3000 2338.6834 49.917072 6600
36000 3000 2965.9169 58.791895 6600
37000 3000 3633.9439 69.178865 6600
38000 3000 4381.169 77.125516 6600
39000 3000 5200.4428 85.112819 6600
40000 3000 5981.1243 93.916094 6600
41000 3000 6913.1321 111.52461 6600
42000 3000 7891.6856 126.41588 6600
43000 3000 9015.9183 132.79203 6600
44000 3000 10114.77 135.83655 6600
45000 3000 11186.13 161.2117 6600
46000 3000 12587.579 171.77876 6600
47000 3000 13907.677 191.12709 6600
48000 3000 15144.281 182.89003 6600
49000 3000 16407.271 207.27392 6600
50000 3000 17942.662 213.26893 6600
Loop time of 6.52165 on 4 procs / 1 threads for 25000 steps with 3000 atoms
Pair time (%) = 3.47373 (53.2646)
Neigh time (%) = 0.673379 (10.3253)
Comm time (%) = 0.719321 (11.0297)
Outpt time (%) = 0.190085 (2.91468)
Other time (%) = 1.46513 (22.4657)
Nlocal: 750 ave 761 max 734 min
Histogram: 1 0 0 0 0 0 1 1 0 1
Nghost: 400.25 ave 411 max 386 min
Histogram: 1 0 0 0 0 0 2 0 0 1
Neighs: 3700.75 ave 3759 max 3620 min
Histogram: 1 0 0 1 0 0 0 0 0 2
Total # of neighbors = 14803
Ave neighs/atom = 4.93433
Neighbor list builds = 825
Dangerous builds = 0
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