forked from lijiext/lammps
138 lines
4.9 KiB
Groff
138 lines
4.9 KiB
Groff
LAMMPS (15 Feb 2016)
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# 2d Lennard-Jones melt and subsequent energy minimization
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units lj
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dimension 2
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atom_style atomic
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lattice sq2 0.8442
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Lattice spacing in x,y,z = 1.53919 1.53919 1.53919
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region box block 0 20 0 20 -0.1 0.1
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create_box 1 box
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Created orthogonal box = (0 0 -0.153919) to (30.7838 30.7838 0.153919)
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2 by 2 by 1 MPI processor grid
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create_atoms 1 box
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Created 800 atoms
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mass 1 1.0
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velocity all create 5.0 87287 loop geom
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pair_style lj/cut 2.5
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pair_coeff 1 1 1.0 1.0 2.5
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pair_modify shift yes
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neighbor 0.3 bin
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neigh_modify delay 0 every 1 check yes
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fix 1 all nve
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fix 2 all enforce2d
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#dump 1 all atom 100 dump.min
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#dump 2 all image 50 image.*.jpg type type # zoom 1.6 adiam 1.5
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#dump_modify 2 pad 4
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#dump 3 all movie 50 movie.mpg type type # zoom 1.6 adiam 1.5
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#dump_modify 3 pad 4
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thermo 100
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run 1000
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Neighbor list info ...
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1 neighbor list requests
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update every 1 steps, delay 0 steps, check yes
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max neighbors/atom: 2000, page size: 100000
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master list distance cutoff = 2.8
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ghost atom cutoff = 2.8
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binsize = 1.4 -> bins = 22 22 1
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Memory usage per processor = 2.47676 Mbytes
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Step Temp E_pair E_mol TotEng Press
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0 5 -2.461717 0 2.532033 5.0190509
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100 3.2788864 -0.74311698 0 2.5316708 15.912832
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200 3.3041082 -0.77000277 0 2.5299752 15.602653
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300 3.3840228 -0.84859211 0 2.5312006 15.188203
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400 3.3916063 -0.85694601 0 2.5304208 15.383853
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500 3.3136053 -0.77935264 0 2.5301106 15.833296
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600 3.3888915 -0.85213737 0 2.532518 15.162759
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700 3.2123636 -0.67641846 0 2.5319297 16.31059
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800 3.3016408 -0.76570603 0 2.5318077 15.639259
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900 3.4621697 -0.92610292 0 2.5317391 14.773473
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1000 3.3058424 -0.77076863 0 2.5309414 15.708171
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Loop time of 0.0792709 on 4 procs for 1000 steps with 800 atoms
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Performance: 5449666.950 tau/day, 12614.970 timesteps/s
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94.3% CPU use with 4 MPI tasks x no OpenMP threads
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MPI task timing breakdown:
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Section | min time | avg time | max time |%varavg| %total
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Pair | 0.033109 | 0.03398 | 0.035743 | 0.6 | 42.87
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Neigh | 0.013423 | 0.013508 | 0.013607 | 0.1 | 17.04
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Comm | 0.019584 | 0.022177 | 0.023639 | 1.0 | 27.98
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Output | 0.0001688 | 0.00018328 | 0.00020313 | 0.1 | 0.23
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Modify | 0.0031462 | 0.0032172 | 0.0032594 | 0.1 | 4.06
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Other | | 0.006205 | | | 7.83
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Nlocal: 200 ave 202 max 196 min
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Histogram: 1 0 0 0 0 0 0 0 2 1
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Nghost: 170.25 ave 174 max 167 min
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Histogram: 1 0 1 0 0 1 0 0 0 1
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Neighs: 1934.75 ave 1972 max 1873 min
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Histogram: 1 0 0 0 0 0 1 0 1 1
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Total # of neighbors = 7739
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Ave neighs/atom = 9.67375
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Neighbor list builds = 203
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Dangerous builds = 0
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neigh_modify delay 0 every 1 check yes
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#dump_modify 1 every 25
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thermo 50
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minimize 1.0e-6 0.001 1000 10000
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Memory usage per processor = 3.60176 Mbytes
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Step Temp E_pair E_mol TotEng Press
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1000 3.3058424 -0.77076863 0 2.5309414 15.708171
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1050 3.3058424 -2.8318266 0 0.46988351 1.5980106
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1100 3.3058424 -2.8658339 0 0.43587618 1.7013061
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1150 3.3058424 -2.8788056 0 0.42290443 1.6855503
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1200 3.3058424 -2.8831122 0 0.41859789 1.6869035
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1250 3.3058424 -2.8877971 0 0.413913 1.7276622
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1300 3.3058424 -2.8887969 0 0.41291311 1.7424655
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Loop time of 0.053865 on 4 procs for 300 steps with 800 atoms
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98.4% CPU use with 4 MPI tasks x no OpenMP threads
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Minimization stats:
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Stopping criterion = energy tolerance
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Energy initial, next-to-last, final =
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-0.770768629298 -2.88879411525 -2.88879694984
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Force two-norm initial, final = 1950.95 0.825241
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Force max component initial, final = 374.098 0.224821
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Final line search alpha, max atom move = 0.410301 0.0922441
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Iterations, force evaluations = 300 595
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MPI task timing breakdown:
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Section | min time | avg time | max time |%varavg| %total
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Pair | 0.032029 | 0.032993 | 0.034442 | 0.5 | 61.25
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Neigh | 0.0037003 | 0.0038341 | 0.0038917 | 0.1 | 7.12
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Comm | 0.0051906 | 0.0071514 | 0.0082016 | 1.4 | 13.28
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Output | 8.1778e-05 | 8.5294e-05 | 9.5844e-05 | 0.1 | 0.16
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Modify | 0.00035262 | 0.00036818 | 0.00039029 | 0.1 | 0.68
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Other | | 0.009433 | | | 17.51
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Nlocal: 200 ave 202 max 196 min
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Histogram: 1 0 0 0 0 0 1 0 0 2
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Nghost: 172.5 ave 175 max 169 min
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Histogram: 1 0 0 1 0 0 0 0 0 2
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Neighs: 1757 ave 1793 max 1721 min
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Histogram: 1 0 1 0 0 0 0 1 0 1
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Total # of neighbors = 7028
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Ave neighs/atom = 8.785
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Neighbor list builds = 59
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Dangerous builds = 0
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Total wall time: 0:00:00
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