LAMMPS (22 Aug 2018) # 3d Lennard-Jones melt - client script variable mode index file if "${mode} == file" then "message client md file tmp.couple" elif "${mode} == zmq" "message client md zmq localhost:5555" elif "${mode} == mpione" "message client md mpi/one" elif "${mode} == mpitwo" "message client md mpi/two tmp.couple" message client md mpi/one variable x index 5 variable y index 5 variable z index 5 units lj atom_style atomic atom_modify sort 0 0.0 map yes lattice fcc 0.8442 Lattice spacing in x,y,z = 1.6796 1.6796 1.6796 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 (8.39798 8.39798 8.39798) 1 by 1 by 1 MPI processor grid create_atoms 1 box Created 500 atoms Time spent = 0.000540018 secs mass 1 1.0 velocity all create 1.44 87287 loop geom neighbor 0.3 bin neigh_modify delay 0 every 1 check yes fix 1 all nve # same with NPT #fix 1 all npt temp 1.0 1.0 0.1 iso 1 1 1.0 fix 2 all client/md fix_modify 2 energy yes thermo 10 run 50 Per MPI rank memory allocation (min/avg/max) = 2.303 | 2.303 | 2.303 Mbytes Step Temp E_pair E_mol TotEng Press 0 1.44 0 0 -4.6176881 -5.0221006 10 1.1347688 0 0 -4.6166043 -2.6072847 20 0.628166 0 0 -4.62213 1.0186262 30 0.73767593 0 0 -4.6254647 0.49629637 40 0.69517962 0 0 -4.6253506 0.69303877 50 0.70150496 0 0 -4.6259832 0.59551518 Loop time of 0.0403891 on 1 procs for 50 steps with 500 atoms Performance: 534798.272 tau/day, 1237.959 timesteps/s 99.9% CPU use with 1 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 | 4.7684e-06 | 4.7684e-06 | 4.7684e-06 | 0.0 | 0.01 Comm | 6.3181e-05 | 6.3181e-05 | 6.3181e-05 | 0.0 | 0.16 Output | 9.5367e-05 | 9.5367e-05 | 9.5367e-05 | 0.0 | 0.24 Modify | 0.040053 | 0.040053 | 0.040053 | 0.0 | 99.17 Other | | 0.0001726 | | | 0.43 Nlocal: 500 ave 500 max 500 min Histogram: 1 0 0 0 0 0 0 0 0 0 Nghost: 0 ave 0 max 0 min Histogram: 1 0 0 0 0 0 0 0 0 0 Neighs: 0 ave 0 max 0 min Histogram: 1 0 0 0 0 0 0 0 0 0 Total # of neighbors = 0 Ave neighs/atom = 0 Neighbor list builds = 4 Dangerous builds = 0 Total wall time: 0:00:00