element=lattice type=modelname=O bcc Sim_LAMMPS_Vashishta_VashishtaKaliaRino_1990_SiO__SM_887826436433_000 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: 0.000000 Iterations: 36 Function evaluations: 100