LAMMPS (2 Jun 2022) # 3d Lennard-Jones melt - MDI driver script variable x index 5 variable y index 5 variable z index 5 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 $x 0 $y 0 $z region box block 0 5 0 $y 0 $z region box block 0 5 0 5 0 $z region box block 0 5 0 5 0 5 create_box 1 box Created orthogonal box = (0 0 0) to (8.397981 8.397981 8.397981) 1 by 1 by 3 MPI processor grid create_atoms 1 box Created 500 atoms using lattice units in orthogonal box = (0 0 0) to (8.397981 8.397981 8.397981) create_atoms CPU = 0.001 seconds mass 1 1.0 velocity all create 1.44 87287 loop geom neighbor 0.3 bin neigh_modify delay 0 every 1 check yes # NVE fix 1 all nve # NPT #fix 1 all npt temp 1.0 1.0 0.1 iso 1.0 1.0 1.0 fix 2 all mdi/qm virial yes thermo_style custom step temp pe etotal press vol thermo 1 run 10 WARNING: No pairwise cutoff or binsize set. Atom sorting therefore disabled. (../atom.cpp:2127) WARNING: Communication cutoff is 0.0. No ghost atoms will be generated. Atoms may get lost. (../comm_brick.cpp:210) Per MPI rank memory allocation (min/avg/max) = 2.297 | 2.297 | 2.297 Mbytes Step Temp PotEng TotEng Press Volume 0 1.44 -6.7733681 -4.6176881 -5.0221006 592.27671 1 1.4377309 -6.7699814 -4.6176981 -5.0007431 592.27671 2 1.430825 -6.7596844 -4.6177394 -4.9363501 592.27671 3 1.4189655 -6.7420029 -4.6178116 -4.8276957 592.27671 4 1.4016029 -6.7161132 -4.6179137 -4.6726332 592.27671 5 1.3779738 -6.6808361 -4.6180094 -4.468186 592.27671 6 1.3471497 -6.6344152 -4.6177322 -4.2103477 592.27671 7 1.3081237 -6.5752633 -4.6170021 -3.8956402 592.27671 8 1.2599751 -6.502724 -4.6165412 -3.5228721 592.27671 9 1.2021373 -6.4153971 -4.6157975 -3.0910274 592.27671 10 1.1347688 -6.3153532 -4.6166043 -2.6072847 592.27671 Loop time of 2.39983 on 3 procs for 10 steps with 500 atoms Performance: 1800.127 tau/day, 4.167 timesteps/s 66.7% CPU use with 3 MPI tasks x no OpenMP threads MPI task timing breakdown: Section | min time | avg time | max time |%varavg| %total --------------------------------------------------------------- Pair | 0 | 0 | 0 | 0.0 | 0.00 Neigh | 3.75e-07 | 1.3583e-06 | 2.574e-06 | 0.0 | 0.00 Comm | 5.4167e-05 | 0.00010938 | 0.00015338 | 0.0 | 0.00 Output | 0.00030885 | 0.00042099 | 0.00064497 | 0.0 | 0.02 Modify | 2.3988 | 2.3989 | 2.3989 | 0.0 | 99.96 Other | | 0.0004276 | | | 0.02 Nlocal: 166.667 ave 176 max 150 min Histogram: 1 0 0 0 0 0 0 0 0 2 Nghost: 0 ave 0 max 0 min Histogram: 3 0 0 0 0 0 0 0 0 0 Neighs: 0 ave 0 max 0 min Histogram: 3 0 0 0 0 0 0 0 0 0 Total # of neighbors = 0 Ave neighs/atom = 0 Neighbor list builds = 1 Dangerous builds = 0 Total wall time: 0:00:03