LAMMPS (18 Jun 2019) OMP_NUM_THREADS environment is not set. Defaulting to 1 thread. (src/comm.cpp:88) using 1 OpenMP thread(s) per MPI task Lattice spacing in x,y,z = 3.32813 3.32813 3.32813 Created orthogonal box = (0 0 0) to (33.2813 33.2813 33.2813) 1 by 1 by 1 MPI processor grid Created 4000 atoms create_atoms CPU = 0.000463963 secs Initial system volume: 36863.7279991596 Angstroms^3 Neighbor list info ... update every 1 steps, delay 10 steps, check yes max neighbors/atom: 2000, page size: 100000 master list distance cutoff = 20.5307 ghost atom cutoff = 20.5307 binsize = 10.2653, bins = 4 4 4 1 neighbor lists, perpetual/occasional/extra = 1 0 0 (1) pair kim, perpetual attributes: full, newton off, cut 20.5307 pair build: full/bin/atomonly stencil: full/bin/3d bin: standard Setting up Verlet run ... Unit style : metal Current step : 0 Time step : 0.001 ERROR on proc 0: Neighbor list overflow, boost neigh_modify one (src/npair_full_bin_atomonly.cpp:90) Last command: run 1000