lammps/examples/pour/log.5Oct16.pour.2d.g++.4

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LAMMPS (5 Oct 2016)
# Pour 2d granular particles into container
dimension 2
atom_style sphere
boundary f fm p
newton off
comm_modify vel yes
region reg block 0 100 0 50 -0.5 0.5 units box
create_box 1 reg
Created orthogonal box = (0 0 -0.5) to (100 50 0.5)
4 by 1 by 1 MPI processor grid
neighbor 0.2 bin
neigh_modify delay 0
# IMPORTANT NOTE: these values of stiffness (4000) 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 = 4.0e5 and dt = 0.0001, as in bench/in.chute (if it were Hertzian).
pair_style gran/hertz/history 4000.0 NULL 100.0 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 xwalls all wall/gran hertz/history 4000.0 NULL 100.0 NULL 0 1 xplane 0 100
fix ywalls all wall/gran hertz/history 4000.0 NULL 100.0 NULL 0 1 yplane 0 NULL
region slab block 1.0 99.0 30 34.5 -0.5 0.5 units box
fix ins all pour 1000 1 4767548 vol 0.4 10 diam range 0.5 1.0 region slab
Particle insertion: 224 every 3000 steps, 1000 by step 12001
fix 3 all enforce2d
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 250 dump.pour
#dump 2 all image 500 image.*.jpg type type # zoom 1.6 adiam 1.5
#dump_modify 2 pad 5
#dump 3 all movie 500 movie.mpg type type # zoom 1.6 adiam 1.5
#dump_modify 3 pad 5
run 25000
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 = 1.2
ghost atom cutoff = 1.2
binsize = 0.6 -> bins = 167 84 2
Memory usage per processor = 2.7174 Mbytes
Step Atoms KinEng c_1 Volume
0 0 -0 0 5000
1000 224 201.77464 0 5000
2000 224 372.42868 0 5000
3000 224 599.60221 0 5000
4000 448 1084.3752 0 5000
5000 448 1592.4543 0 5000
6000 448 1763.3153 37.274939 5000
7000 672 1805.206 89.331853 5000
8000 672 1778.0015 111.58381 5000
9000 672 1592.6805 97.550311 5000
10000 896 1630.8521 79.742572 5000
11000 896 1593.1588 67.633788 5000
12000 896 1562.2084 65.097236 5000
13000 1000 1504.1203 63.468934 5000
14000 1000 1266.5724 55.837334 5000
15000 1000 1041.8665 48.938774 5000
16000 1000 766.27305 43.846151 5000
17000 1000 466.30103 43.206188 5000
18000 1000 320.50154 26.84775 5000
19000 1000 207.91453 29.183522 5000
20000 1000 52.447982 19.30378 5000
21000 1000 22.027641 10.395933 5000
22000 1000 15.395099 6.7003289 5000
23000 1000 11.97674 5.2548063 5000
24000 1000 7.8974699 3.7396899 5000
25000 1000 6.1288038 2.2056805 5000
Loop time of 0.974647 on 4 procs for 25000 steps with 1000 atoms
Performance: 2216187.157 tau/day, 25650.314 timesteps/s
99.4% CPU use with 4 MPI tasks x no OpenMP threads
MPI task timing breakdown:
Section | min time | avg time | max time |%varavg| %total
---------------------------------------------------------------
Pair | 0.29556 | 0.31544 | 0.33654 | 3.0 | 32.36
Neigh | 0.10012 | 0.10782 | 0.11355 | 1.7 | 11.06
Comm | 0.081835 | 0.087606 | 0.098412 | 2.2 | 8.99
Output | 0.00039244 | 0.00043273 | 0.0004766 | 0.2 | 0.04
Modify | 0.28155 | 0.29814 | 0.31262 | 2.2 | 30.59
Other | | 0.1652 | | | 16.95
Nlocal: 250 ave 267 max 232 min
Histogram: 1 0 0 0 1 1 0 0 0 1
Nghost: 18 ave 23 max 14 min
Histogram: 2 0 0 0 0 0 0 1 0 1
Neighs: 606 ave 664 max 559 min
Histogram: 1 0 1 0 0 1 0 0 0 1
Total # of neighbors = 2424
Ave neighs/atom = 2.424
Neighbor list builds = 2060
Dangerous builds = 0
Total wall time: 0:00:00