138 lines
6.1 KiB
Groff
138 lines
6.1 KiB
Groff
LAMMPS (18 Feb 2020)
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# bcc iron in a 3d periodic box
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clear
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units metal
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atom_style spin
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dimension 3
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boundary p p p
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# necessary for the serial algorithm (sametag)
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atom_modify map array
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lattice bcc 2.8665
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Lattice spacing in x,y,z = 2.8665 2.8665 2.8665
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region box block 0.0 5.0 0.0 5.0 0.0 5.0
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create_box 1 box
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Created orthogonal box = (0 0 0) to (14.3325 14.3325 14.3325)
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1 by 1 by 1 MPI processor grid
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create_atoms 1 box
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Created 250 atoms
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create_atoms CPU = 0.000427961 secs
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# setting mass, mag. moments, and interactions for bcc iron
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mass 1 55.845
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set group all spin/random 31 2.2
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250 settings made for spin/random
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# set group all spin 2.2 0.0 0.0 1.0
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velocity all create 100 4928459 rot yes dist gaussian
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pair_style hybrid/overlay eam/alloy spin/exchange 3.5
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pair_coeff * * eam/alloy Fe_Mishin2006.eam.alloy Fe
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pair_coeff * * spin/exchange exchange 3.4 0.02726 0.2171 1.841
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neighbor 0.1 bin
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neigh_modify every 10 check yes delay 20
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fix 1 all precession/spin zeeman 0.0 0.0 0.0 1.0
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fix_modify 1 energy yes
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fix 2 all langevin/spin 0.0 0.0 21
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fix 3 all nve/spin lattice moving
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timestep 0.0001
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# compute and output options
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compute out_mag all spin
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compute out_pe all pe
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compute out_ke all ke
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compute out_temp all temp
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variable magz equal c_out_mag[3]
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variable magnorm equal c_out_mag[4]
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variable emag equal c_out_mag[5]
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variable tmag equal c_out_mag[6]
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thermo_style custom step time v_magnorm v_tmag temp v_emag ke pe press etotal
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thermo 50
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compute outsp all property/atom spx spy spz sp fmx fmy fmz
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dump 1 all custom 100 dump_iron.lammpstrj type x y z c_outsp[1] c_outsp[2] c_outsp[3]
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run 1000
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Neighbor list info ...
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update every 10 steps, delay 20 steps, check yes
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max neighbors/atom: 2000, page size: 100000
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master list distance cutoff = 5.77337
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ghost atom cutoff = 5.77337
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binsize = 2.88668, bins = 5 5 5
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2 neighbor lists, perpetual/occasional/extra = 2 0 0
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(1) pair eam/alloy, perpetual, half/full from (2)
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attributes: half, newton on
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pair build: halffull/newton
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stencil: none
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bin: none
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(2) pair spin/exchange, perpetual
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attributes: full, newton on
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pair build: full/bin/atomonly
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stencil: full/bin/3d
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bin: standard
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Per MPI rank memory allocation (min/avg/max) = 7.82 | 7.82 | 7.82 Mbytes
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Step Time v_magnorm v_tmag Temp v_emag KinEng PotEng Press TotEng
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0 0 0.076456975 9109.0924 100.00358 -0.85791269 3.2186929 -1070.8579 394.43342 -1067.6392
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50 0.005 0.076456974 9316.7659 96.663685 -0.86504718 3.1111957 -1070.7504 709.50826 -1067.6392
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100 0.01 0.076456983 9488.3743 86.965803 -0.88035771 2.7990619 -1070.4383 1466.6938 -1067.6392
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150 0.015 0.076456973 9589.0566 72.421197 -0.8996913 2.3309324 -1069.9702 2534.3867 -1067.6392
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200 0.02 0.076456944 9415.3095 55.633188 -0.921682 1.7905973 -1069.4298 3732.183 -1067.6392
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250 0.025 0.076456953 8878.9394 39.802206 -0.94649004 1.2810649 -1068.9203 4831.5559 -1067.6392
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300 0.03 0.076457027 8203.3388 27.882295 -0.97253854 0.8974133 -1068.5366 5612.0928 -1067.6392
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350 0.035 0.076457103 7720.309 21.776538 -0.99708692 0.70089477 -1068.3401 5906.3057 -1067.6392
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400 0.04 0.076457117 7531.0683 21.857102 -1.0190244 0.70348778 -1068.3427 5682.0053 -1067.6392
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450 0.045 0.076457072 7479.8073 26.959407 -1.0389343 0.86770942 -1068.5069 5066.5077 -1067.6392
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500 0.05 0.076457001 7461.6683 34.92521 -1.0582008 1.124095 -1068.7633 4279.2424 -1067.6392
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550 0.055 0.076456962 7396.1112 43.405912 -1.0785156 1.397053 -1069.0363 3533.4153 -1067.6392
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600 0.06 0.076456997 7121.894 50.544844 -1.102048 1.626825 -1069.2661 2975.8479 -1067.6392
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650 0.065 0.076457079 6683.4805 55.261218 -1.1296588 1.7786252 -1069.4179 2683.3023 -1067.6392
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700 0.07 0.076457136 6313.6896 57.25083 -1.1595102 1.8426624 -1069.4819 2640.5967 -1067.6392
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750 0.075 0.076457132 6199.0363 56.934336 -1.1893875 1.8324758 -1069.4717 2778.3261 -1067.6392
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800 0.08 0.076457116 6265.997 55.266343 -1.2181223 1.7787901 -1069.418 3020.1175 -1067.6392
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850 0.085 0.076457116 6326.5886 53.376453 -1.2443326 1.7179626 -1069.3572 3287.9042 -1067.6392
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900 0.09 0.076457121 6336.1261 52.279557 -1.2676425 1.6826581 -1069.3219 3504.7334 -1067.6392
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950 0.095 0.076457122 6288.4204 52.667743 -1.2902335 1.6951522 -1069.3344 3622.1382 -1067.6392
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1000 0.1 0.076457135 6122.1622 54.684094 -1.314147 1.76005 -1069.3993 3625.2935 -1067.6392
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Loop time of 1.6842 on 1 procs for 1000 steps with 250 atoms
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Performance: 5.130 ns/day, 4.678 hours/ns, 593.753 timesteps/s
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100.0% CPU use with 1 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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---------------------------------------------------------------
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Pair | 0.78195 | 0.78195 | 0.78195 | 0.0 | 46.43
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Neigh | 0.004627 | 0.004627 | 0.004627 | 0.0 | 0.27
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Comm | 0.022943 | 0.022943 | 0.022943 | 0.0 | 1.36
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Output | 0.0038755 | 0.0038755 | 0.0038755 | 0.0 | 0.23
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Modify | 0.86736 | 0.86736 | 0.86736 | 0.0 | 51.50
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Other | | 0.003444 | | | 0.20
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Nlocal: 250 ave 250 max 250 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Nghost: 1399 ave 1399 max 1399 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Neighs: 7855 ave 7855 max 7855 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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FullNghs: 15710 ave 15710 max 15710 min
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Histogram: 1 0 0 0 0 0 0 0 0 0
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Total # of neighbors = 15710
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Ave neighs/atom = 62.84
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Neighbor list builds = 6
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Dangerous builds = 0
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Please see the log.cite file for references relevant to this simulation
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Total wall time: 0:00:01
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