LAMMPS (9 Nov 2011) # 2D triangular harmonic lattice dimension 2 boundary f f p units lj atom_style bond atom_modify sort 0 1. #angle_style cosine bond_style harmonic none pair_style none communicate single cutoff 1.0 # geometry read_data data.test2 4 = max bonds/atom 4 = max bonds/atom orthogonal box = (-1 -1 -0.001) to (1 1 0.001) 1 by 11 by 1 processor grid ERROR: Incorrect atom format in data file (atom.cpp:818)