142 lines
5.5 KiB
Plaintext
142 lines
5.5 KiB
Plaintext
LAMMPS (5 Jun 2010-ICMS)
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# Pour granular particles into chute container, then induce flow
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atom_style granular
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boundary p p fm
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newton off
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communicate single vel yes
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region reg block -10 10 -10 10 -0.5 16 units box
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create_box 1 reg
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Created orthogonal box = (-10 -10 -0.5) to (10 10 16)
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2 by 2 by 1 processor grid
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using 2 OpenMP thread(s) per MPI task
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neighbor 0.2 bin
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neigh_modify delay 0
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# IMPORTANT NOTE: these values of stiffness (2000) and timestep (0.001)
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# are used in this example file to produce a quick simulation and movie.
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# More appropriate values for realistic simulations would be
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# k = 2.0e5 and dt = 0.0001, as in bench/in.chute.
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pair_style gran/hooke/history/omp 2000.0 NULL 50.0 NULL 0.5 0
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pair_coeff * *
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timestep 0.001
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fix 1 all nve/sphere
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fix 2 all gravity 1.0 spherical 0.0 -180.0
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fix zlower all wall/gran/omp 2000.0 NULL 50.0 NULL 0.5 0 zplane 0.0 2000.0
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region slab block -9.0 9.0 -9.0 9.0 10.0 15.0 units box
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fix ins all pour 3000 1 300719 vol 0.13 50 region slab
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Particle insertion: 402 every 3162 steps, 3000 by step 22135
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compute 1 all erotate/sphere
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thermo_style custom step atoms ke c_1 vol
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thermo 1000
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thermo_modify lost ignore norm no
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compute_modify thermo_temp dynamic yes
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run 25000
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Memory usage per processor = 9.02412 Mbytes
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Step Atoms KinEng 1 Volume
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0 0 -0 0 6600
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1000 402 779.98578 0 6600
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2000 402 1424.4252 0 6600
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3000 402 1425.0863 12.9927 6600
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4000 804 1724.8627 47.36161 6600
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5000 804 1599.9516 63.808734 6600
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6000 804 1359.1774 63.495338 6600
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7000 1206 1532.7896 68.602762 6600
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8000 1206 1403.019 62.696462 6600
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9000 1206 1246.5753 52.231964 6600
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10000 1608 1384.5899 51.460162 6600
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11000 1608 1242.4887 50.745726 6600
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12000 1608 1197.481 42.194296 6600
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13000 2010 1321.2214 47.42928 6600
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14000 2010 1174.3424 42.408121 6600
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15000 2010 981.67307 45.598658 6600
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16000 2412 1033.7983 45.311452 6600
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17000 2412 1018.2598 42.141965 6600
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18000 2412 908.36873 36.678547 6600
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19000 2814 1019.7476 36.378478 6600
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20000 2814 949.00477 41.509969 6600
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21000 2814 759.05274 39.433543 6600
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22000 2814 528.88038 37.699279 6600
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23000 3000 433.87518 34.124534 6600
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24000 3000 359.33802 22.059403 6600
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25000 3000 220.64822 22.234806 6600
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Loop time of 3.34694 on 4 procs / 2 threads for 25000 steps with 3000 atoms
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Pair time (%) = 1.35584 (40.5098)
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Neigh time (%) = 0.469209 (14.0191)
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Comm time (%) = 0.542474 (16.2081)
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Outpt time (%) = 0.000692368 (0.0206866)
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Other time (%) = 0.978722 (29.2423)
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Nlocal: 750 ave 758 max 737 min
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Histogram: 1 0 0 0 1 0 0 0 0 2
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Nghost: 389 ave 397 max 377 min
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Histogram: 1 0 0 0 0 0 1 1 0 1
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Neighs: 3580.5 ave 3599 max 3565 min
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Histogram: 1 0 0 0 2 0 0 0 0 1
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Total # of neighbors = 14322
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Ave neighs/atom = 4.774
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Neighbor list builds = 1151
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Dangerous builds = 0
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dump id all xyz 1000 pour.xyz
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unfix ins
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fix 2 all gravity 1.0 chute 26.0
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run 25000
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Memory usage per processor = 9.72626 Mbytes
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Step Atoms KinEng 1 Volume
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25000 3000 220.64822 22.234806 6600
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26000 3000 103.19986 18.174301 6600
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27000 3000 98.294382 11.826361 6600
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28000 3000 180.69879 11.583498 6600
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29000 3000 295.25214 14.032061 6600
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30000 3000 459.5425 17.683337 6600
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31000 3000 689.06435 23.952376 6600
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32000 3000 968.21246 31.719147 6600
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33000 3000 1372.8361 35.414891 6600
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34000 3000 1820.7921 46.329911 6600
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35000 3000 2375.8558 54.415618 6600
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36000 3000 2993.5483 61.424743 6600
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37000 3000 3640.425 73.398761 6600
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38000 3000 4416.5164 86.393469 6600
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39000 3000 5217.0461 90.130433 6600
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40000 3000 6097.8684 102.90775 6600
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41000 3000 7047.8577 116.52598 6600
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42000 3000 8013.5511 125.73802 6600
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43000 3000 9086.1914 137.63312 6600
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44000 3000 10193.555 143.90476 6600
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45000 3000 11321.871 161.81092 6600
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46000 3000 12420.49 163.33332 6600
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47000 3000 13627.352 180.05204 6600
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48000 3000 14959.689 189.04694 6600
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49000 3000 16355.247 194.52038 6600
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50000 3000 17641.109 221.05346 6600
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Loop time of 5.60801 on 4 procs / 2 threads for 25000 steps with 3000 atoms
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Pair time (%) = 2.34494 (41.8141)
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Neigh time (%) = 0.666394 (11.8829)
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Comm time (%) = 0.912153 (16.2652)
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Outpt time (%) = 0.0606593 (1.08165)
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Other time (%) = 1.62387 (28.9562)
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Nlocal: 750 ave 759 max 734 min
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Histogram: 1 0 0 0 0 0 0 1 1 1
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Nghost: 403.25 ave 410 max 394 min
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Histogram: 1 0 0 0 0 1 0 0 1 1
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Neighs: 3676.25 ave 3722 max 3628 min
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Histogram: 1 0 1 0 0 0 0 1 0 1
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Total # of neighbors = 14705
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Ave neighs/atom = 4.90167
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Neighbor list builds = 801
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Dangerous builds = 0
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