#------------------------------------------------------------------------------- # Stage 2.1: Initialize LAMMPS run for 3-d periodic #------------------------------------------------------------------------------- units real boundary p p p atom_style full box tilt large read_data structure.dat Reading data file ... orthogonal box = (0 0 0) to (12.5214 12.5214 10.6652) 2 by 4 by 2 MPI processor grid reading atoms ... 216 atoms Finding 1-2 1-3 1-4 neighbors ... special bond factors lj: 0 0 0 special bond factors coul: 0 0 0 0 = max # of 1-2 neighbors 0 = max # of 1-3 neighbors 0 = max # of 1-4 neighbors 1 = max # of special neighbors special bonds CPU = 0.000 seconds read_data CPU = 0.002 seconds pair_style reax/c NULL checkqeq no safezone 10.0 mincap 1000 pair_coeff * * parameters.dat C N O Si variable R equal 0.00198722 variable sysvol equal vol variable sysmass equal mass(all)/6.0221367e+023 variable sysdensity equal v_sysmass/v_sysvol/1.0e-24 variable coulomb equal ecoul+elong variable etotal equal etotal variable pe equal pe variable ke equal ke variable evdwl equal evdwl variable epair equal epair variable ebond equal ebond variable eangle equal eangle variable edihed equal edihed variable eimp equal eimp variable lx equal lx variable ly equal ly variable lz equal lz variable Nthermo equal 0 variable cella equal lx variable cellb equal sqrt(ly*ly+xy*xy) variable cellc equal sqrt(lz*lz+xz*xz+yz*yz) variable cellalpha equal acos((xy*xz+ly*yz)/(v_cellb*v_cellc)) variable cellbeta equal acos(xz/v_cellc) variable cellgamma equal acos(xy/v_cellb) variable p equal press variable pxx equal pxx variable pyy equal pyy variable pzz equal pzz variable pyz equal pyz variable pxz equal pxz variable pxy equal pxy variable sxx equal -pxx variable syy equal -pyy variable szz equal -pzz variable syz equal -pyz variable sxz equal -pxz variable sxy equal -pxy variable fmax equal fmax variable fnorm equal fnorm variable time equal step*dt+0.000001 variable surfacetension equal 0.5*v_lz*(0.5*(v_sxx+v_syy)-v_szz) thermo_style custom step v_time press vol v_sysdensity temp ebond eangle edihed eimp evdwl ecoul etail elong pe ke thermo_modify flush yes # # Set up the fixed and movable groups # group movable union all 216 atoms in group movable group fixed subtract all movable 0 atoms in group fixed compute sum_f1 movable reduce sum fx fy fz variable sum_fx equal c_sum_f1[1] variable sum_fy equal c_sum_f1[2] variable sum_fz equal c_sum_f1[3] log 2.2_Minimization.out