LAMMPS (24 Mar 2022) OMP_NUM_THREADS environment is not set. Defaulting to 1 thread. (src/comm.cpp:98) using 1 OpenMP thread(s) per MPI task # 3d Lennard-Jones melt variable x index 1 variable y index 1 variable z index 1 variable xx equal 20*$x variable xx equal 20*1 variable yy equal 20*$y variable yy equal 20*1 variable zz equal 20*$z variable zz equal 20*1 units lj atom_style atomic lattice fcc 0.8442 Lattice spacing in x,y,z = 1.6795962 1.6795962 1.6795962 region box block 0 ${xx} 0 ${yy} 0 ${zz} region box block 0 20 0 ${yy} 0 ${zz} region box block 0 20 0 20 0 ${zz} region box block 0 20 0 20 0 20 create_box 1 box Created orthogonal box = (0 0 0) to (33.591924 33.591924 33.591924) 1 by 1 by 1 MPI processor grid create_atoms 1 box Created 32000 atoms using lattice units in orthogonal box = (0 0 0) to (33.591924 33.591924 33.591924) create_atoms CPU = 0.003 seconds mass 1 1.0 velocity all create 1.44 87287 loop geom pair_style lj/cut 2.5 pair_coeff 1 1 1.0 1.0 2.5 neighbor 0.3 bin neigh_modify delay 0 every 20 check no fix 1 all nve thermo_style yaml thermo 10 dump 1 all yaml 25 dump.yaml id type x y z ix iy iz vx vy vz dump_modify 1 sort id thermo yes units yes time yes format 1 %5d format float "% 12.8e" format int %2d run 100 generated 0 of 0 mixed pair_coeff terms from geometric mixing rule Neighbor list info ... update every 20 steps, delay 0 steps, check no max neighbors/atom: 2000, page size: 100000 master list distance cutoff = 2.8 ghost atom cutoff = 2.8 binsize = 1.4, bins = 24 24 24 1 neighbor lists, perpetual/occasional/extra = 1 0 0 (1) pair lj/cut, perpetual attributes: half, newton on pair build: half/bin/atomonly/newton stencil: half/bin/3d bin: standard Per MPI rank memory allocation (min/avg/max) = 20.56 | 20.56 | 20.56 Mbytes --- keywords: [Step, Temp, KinEng, PotEng, E_bond, E_angle, E_dihed, E_impro, E_vdwl, E_coul, E_long, Press, ] data: - [0, 1.44000000000001, 2.15993250000001, -6.77336805323422, 0, 0, 0, 0, -6.77336805323422, 0, 0, -5.01970725908556, ] - [10, 1.12539487029313, 1.68803955255514, -6.30005271976029, 0, 0, 0, 0, -6.30005271976029, 0, 0, -2.55968522600129, ] - [20, 0.625793798302192, 0.938661363368992, -5.55655653922756, 0, 0, 0, 0, -5.55655653922756, 0, 0, 0.973517658007722, ] - [30, 0.745927295413064, 1.11885597777762, -5.73951278150759, 0, 0, 0, 0, -5.73951278150759, 0, 0, 0.339284096694852, ] - [40, 0.731026217827733, 1.09650505988764, -5.71764564663628, 0, 0, 0, 0, -5.71764564663628, 0, 0, 0.388973418756238, ] - [50, 0.740091517740786, 1.11010258482128, -5.73150426762886, 0, 0, 0, 0, -5.73150426762886, 0, 0, 0.335273324523691, ] - [60, 0.750500641591031, 1.12571578266897, -5.74713299283555, 0, 0, 0, 0, -5.74713299283555, 0, 0, 0.26343139026926, ] - [70, 0.755436366857812, 1.13311913920702, -5.75480059117447, 0, 0, 0, 0, -5.75480059117447, 0, 0, 0.224276619217515, ] - [80, 0.759974280364828, 1.13992579675285, -5.76187162670983, 0, 0, 0, 0, -5.76187162670983, 0, 0, 0.191626237124102, ] - [90, 0.760464250735042, 1.14066072934081, -5.76280209529731, 0, 0, 0, 0, -5.76280209529731, 0, 0, 0.189478083345243, ] - [100, 0.757453103239936, 1.13614414924569, -5.75850548601596, 0, 0, 0, 0, -5.75850548601596, 0, 0, 0.207261053624723, ] ... Loop time of 1.89046 on 1 procs for 100 steps with 32000 atoms Performance: 22851.622 tau/day, 52.897 timesteps/s 99.6% CPU use with 1 MPI tasks x 1 OpenMP threads MPI task timing breakdown: Section | min time | avg time | max time |%varavg| %total --------------------------------------------------------------- Pair | 1.2896 | 1.2896 | 1.2896 | 0.0 | 68.22 Neigh | 0.17687 | 0.17687 | 0.17687 | 0.0 | 9.36 Comm | 0.014543 | 0.014543 | 0.014543 | 0.0 | 0.77 Output | 0.37678 | 0.37678 | 0.37678 | 0.0 | 19.93 Modify | 0.028638 | 0.028638 | 0.028638 | 0.0 | 1.51 Other | | 0.003975 | | | 0.21 Nlocal: 32000 ave 32000 max 32000 min Histogram: 1 0 0 0 0 0 0 0 0 0 Nghost: 19657 ave 19657 max 19657 min Histogram: 1 0 0 0 0 0 0 0 0 0 Neighs: 1.20283e+06 ave 1.20283e+06 max 1.20283e+06 min Histogram: 1 0 0 0 0 0 0 0 0 0 Total # of neighbors = 1202833 Ave neighs/atom = 37.588531 Neighbor list builds = 5 Dangerous builds not checked run 100 generated 0 of 0 mixed pair_coeff terms from geometric mixing rule Per MPI rank memory allocation (min/avg/max) = 20.57 | 20.57 | 20.57 Mbytes --- keywords: [Step, Temp, KinEng, PotEng, E_bond, E_angle, E_dihed, E_impro, E_vdwl, E_coul, E_long, Press, ] data: - [100, 0.757453103239935, 1.13614414924569, -5.7585054860159, 0, 0, 0, 0, -5.7585054860159, 0, 0, 0.207261053624721, ] - [110, 0.759322359337036, 1.13894794576996, -5.7614668389562, 0, 0, 0, 0, -5.7614668389562, 0, 0, 0.194314975399602, ] - [120, 0.759372342462676, 1.13902291811546, -5.76149365656489, 0, 0, 0, 0, -5.76149365656489, 0, 0, 0.191600048851267, ] - [130, 0.756833027516501, 1.13521406472659, -5.75777334823494, 0, 0, 0, 0, -5.75777334823494, 0, 0, 0.208792327853067, ] - [140, 0.759725426691298, 1.13955252790757, -5.76208910746081, 0, 0, 0, 0, -5.76208910746081, 0, 0, 0.193895435346637, ] - [150, 0.760545839455106, 1.14078310859643, -5.7633284876011, 0, 0, 0, 0, -5.7633284876011, 0, 0, 0.187959630462945, ] - [160, 0.758404626168493, 1.13757138903589, -5.76023198892283, 0, 0, 0, 0, -5.76023198892283, 0, 0, 0.19692107984108, ] - [170, 0.758880300638885, 1.13828487844424, -5.76103232235402, 0, 0, 0, 0, -5.76103232235402, 0, 0, 0.197653518549842, ] - [180, 0.753691827878246, 1.13050241251294, -5.75304767384283, 0, 0, 0, 0, -5.75304767384283, 0, 0, 0.237041776410937, ] - [190, 0.757361226563721, 1.13600633853809, -5.75852399133222, 0, 0, 0, 0, -5.75852399133222, 0, 0, 0.219529562657488, ] - [200, 0.759531750132731, 1.13926202214831, -5.76188923485725, 0, 0, 0, 0, -5.76188923485725, 0, 0, 0.209105747192796, ] ... Loop time of 1.93916 on 1 procs for 100 steps with 32000 atoms Performance: 22277.687 tau/day, 51.569 timesteps/s 99.4% CPU use with 1 MPI tasks x 1 OpenMP threads MPI task timing breakdown: Section | min time | avg time | max time |%varavg| %total --------------------------------------------------------------- Pair | 1.3292 | 1.3292 | 1.3292 | 0.0 | 68.55 Neigh | 0.18317 | 0.18317 | 0.18317 | 0.0 | 9.45 Comm | 0.013626 | 0.013626 | 0.013626 | 0.0 | 0.70 Output | 0.38206 | 0.38206 | 0.38206 | 0.0 | 19.70 Modify | 0.027034 | 0.027034 | 0.027034 | 0.0 | 1.39 Other | | 0.004028 | | | 0.21 Nlocal: 32000 ave 32000 max 32000 min Histogram: 1 0 0 0 0 0 0 0 0 0 Nghost: 19570 ave 19570 max 19570 min Histogram: 1 0 0 0 0 0 0 0 0 0 Neighs: 1.19982e+06 ave 1.19982e+06 max 1.19982e+06 min Histogram: 1 0 0 0 0 0 0 0 0 0 Total # of neighbors = 1199821 Ave neighs/atom = 37.494406 Neighbor list builds = 5 Dangerous builds not checked Total wall time: 0:00:04