LAMMPS (27 Mar 2011) # Pure Si crystal, qeq off, calculates stress-strain, no out.*.cfg units metal atom_style charge dimension 3 boundary p p p lattice diamond 5.431 Lattice spacing in x,y,z = 5.431 5.431 5.431 region box block 0 4 0 4 0 4 create_box 1 box Created orthogonal box = (0 0 0) to (21.724 21.724 21.724) 1 by 1 by 1 processor grid create_atoms 1 box Created 512 atoms mass 1 29.0 change_box triclinic velocity all create 1.0 277387 pair_style comb pair_coeff * * ffield.comb Si neighbor 0.5 bin neigh_modify every 20 delay 0 check no fix 1 all box/relax aniso 0.0 vmax 0.001 timestep 0.00020 thermo_style custom step temp etotal pe evdwl ecoul #lx ly lz vol pxx pyy pzz thermo_modify norm yes thermo 1 minimize 1.0e-14 1.0e-20 1000 10000 WARNING: Resetting reneighboring criteria during minimization Memory usage per processor = 3.87189 Mbytes Step Temp TotEng PotEng E_vdwl E_coul 0 1 -4.6295947 -4.6297237 -4.6297237 0 1 1 -4.6295963 -4.6297253 -4.6297253 0 2 1 -4.6295965 -4.6297255 -4.6297255 0 3 1 -4.6295965 -4.6297255 -4.6297255 0 Loop time of 0.768104 on 1 procs for 3 steps with 512 atoms Minimization stats: Stopping criterion = linesearch alpha is zero Energy initial, next-to-last, final = -4.62972371535 -4.62972550036 -4.62972550036 Force two-norm initial, final = 5.86582 0.235602 Force max component initial, final = 3.38663 0.136025 Final line search alpha, max atom move = 0.000114869 1.5625e-05 Iterations, force evaluations = 3 16 Pair time (%) = 0.763957 (99.46) Neigh time (%) = 0 (0) Comm time (%) = 0.0010047 (0.130802) Outpt time (%) = 7.00951e-05 (0.00912572) Other time (%) = 0.00307274 (0.400042) Nlocal: 512 ave 512 max 512 min Histogram: 1 0 0 0 0 0 0 0 0 0 Nghost: 4861 ave 4861 max 4861 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 FullNghs: 212992 ave 212992 max 212992 min Histogram: 1 0 0 0 0 0 0 0 0 0 Total # of neighbors = 212992 Ave neighs/atom = 416 Neighbor list builds = 0 Dangerous builds = 0 min_modify dmax 0.2 line quadratic unfix 1 run 1 WARNING: No fixes defined, atoms won't move Memory usage per processor = 2.88007 Mbytes Step Temp TotEng PotEng E_vdwl E_coul 3 1 -4.6295965 -4.6297255 -4.6297255 0 4 1 -4.6295965 -4.6297255 -4.6297255 0 Loop time of 0.0448351 on 1 procs for 1 steps with 512 atoms Pair time (%) = 0.0447428 (99.7942) Neigh time (%) = 0 (0) Comm time (%) = 5.81741e-05 (0.129751) Outpt time (%) = 1.5974e-05 (0.0356284) Other time (%) = 1.81198e-05 (0.0404144) Nlocal: 512 ave 512 max 512 min Histogram: 1 0 0 0 0 0 0 0 0 0 Nghost: 4861 ave 4861 max 4861 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 FullNghs: 212992 ave 212992 max 212992 min Histogram: 1 0 0 0 0 0 0 0 0 0 Total # of neighbors = 212992 Ave neighs/atom = 416 Neighbor list builds = 0 Dangerous builds = 0 ### copy lines after this to any input script for elastic calculations ### ## Elastic constants calculations: strain box, measure box stress ## strain x, measure s_x, s_y, s_z, s_yz: ## calculates C11, C12, C13 and C14 fix 2 all deform 1 x scale 1.0001 remap x compute perfx all stress/atom pair compute fx all reduce sum c_perfx[1] c_perfx[2] c_perfx[3] c_perfx[4] c_perfx[5] c_perfx[6] thermo_style custom step lx ly lz xy xz yz c_fx[1] c_fx[2] c_fx[3] c_fx[4] c_fx[5] c_fx[6] WARNING: New thermo_style command, previous thermo_modify settings will be lost run 10 Memory usage per processor = 3.33784 Mbytes Step Lx Ly Lz Xy Xz Yz fx[1] fx[2] fx[3] fx[4] fx[5] fx[6] 4 21.728073 21.728073 21.728073 0 0 0 217976.4 217976.4 217976.4 1.9450404e-06 2.4752556e-06 -1.6071587e-06 5 21.728291 21.728073 21.728073 0 0 0 217976.4 217976.4 217976.4 1.8110987e-06 2.6015226e-06 -1.1358357e-06 6 21.728508 21.728073 21.728073 0 0 0 364177.1 295296.39 295296.39 -4.4966424e-06 1.848553e-07 -2.2958737e-06 7 21.728725 21.728073 21.728073 0 0 0 510377.09 372612.85 372612.85 2.4287963e-06 2.6615821e-06 -1.9832618e-06 8 21.728942 21.728073 21.728073 0 0 0 656576.36 449925.76 449925.76 2.4447348e-06 2.4469323e-06 -8.4990897e-07 9 21.72916 21.728073 21.728073 0 0 0 802774.92 527235.13 527235.13 4.0363922e-06 -5.9982754e-06 -2.3201799e-06 10 21.729377 21.728073 21.728073 0 0 0 948972.76 604540.97 604540.97 2.8253812e-06 2.5964234e-06 -8.931554e-07 11 21.729594 21.728073 21.728073 0 0 0 1095169.9 681843.26 681843.26 2.3933505e-06 2.283704e-06 -3.9266049e-07 12 21.729811 21.728073 21.728073 0 0 0 1241366.3 759142.02 759142.02 2.2037259e-06 2.6987214e-06 3.737462e-07 13 21.730029 21.728073 21.728073 0 0 0 1387562 836437.23 836437.23 2.6802555e-06 2.9969439e-06 1.7521287e-07 14 21.730246 21.728073 21.728073 0 0 0 1533757 913728.91 913728.91 4.4634386e-06 -4.2738918e-06 3.2367003e-07 Loop time of 0.48314 on 1 procs for 10 steps with 512 atoms Pair time (%) = 0.479521 (99.2508) Neigh time (%) = 0 (0) Comm time (%) = 0.000623703 (0.129094) Outpt time (%) = 0.0027349 (0.566067) Other time (%) = 0.000261068 (0.0540357) Nlocal: 512 ave 512 max 512 min Histogram: 1 0 0 0 0 0 0 0 0 0 Nghost: 4861 ave 4861 max 4861 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 FullNghs: 212992 ave 212992 max 212992 min Histogram: 1 0 0 0 0 0 0 0 0 0 Total # of neighbors = 212992 Ave neighs/atom = 416 Neighbor list builds = 0 Dangerous builds = 0 ## strain z, measure s_z: calculates C33 fix 2 all deform 1 z scale 1.0001 remap x compute perfz all stress/atom pair compute fz all reduce sum c_perfz[1] c_perfz[2] c_perfz[3] c_perfz[4] c_perfz[5] c_perfz[6] thermo_style custom step lx ly lz xy xz yz c_fz[1] c_fz[2] c_fz[3] c_fz[4] c_fz[5] c_fz[6] run 10 Memory usage per processor = 3.7956 Mbytes Step Lx Ly Lz Xy Xz Yz fz[1] fz[2] fz[3] fz[4] fz[5] fz[6] 14 21.730246 21.728073 21.728073 0 0 0 1679951.2 991017.05 991017.05 1.3848713e-06 1.8198295e-06 -3.1488289e-06 15 21.730246 21.728073 21.728291 0 0 0 1679951.2 991017.05 991017.05 1.4477769e-06 2.1276907e-06 -2.7563351e-06 16 21.730246 21.728073 21.728508 0 0 0 1757243.6 1068312.4 1137190.1 2.1162843e-06 -3.0681281e-06 -1.8698946e-06 17 21.730246 21.728073 21.728725 0 0 0 1834532.4 1145604.2 1283362.4 1.5226892e-06 3.1081802e-06 -2.6821714e-06 18 21.730246 21.728073 21.728942 0 0 0 1911817.6 1222892.5 1429534 -7.5700513e-07 1.7188656e-06 4.1051196e-06 19 21.730246 21.728073 21.72916 0 0 0 1989099.3 1300177.3 1575704.9 -1.4391091e-06 2.0797417e-06 3.9123487e-06 20 21.730246 21.728073 21.729377 0 0 0 2066377.5 1377458.5 1721875.1 -1.5213551e-06 1.9181068e-06 -2.1773741e-06 21 21.730246 21.728073 21.729594 0 0 0 2143652.1 1454736.2 1868044.5 -1.4238005e-06 1.7984361e-06 -2.0333083e-06 22 21.730246 21.728073 21.729811 0 0 0 2220923.2 1532010.3 2014213.3 4.4088785e-06 2.5805071e-06 -2.1480169e-06 23 21.730246 21.728073 21.730029 0 0 0 2298190.7 1609280.9 2160381.3 -9.3407459e-07 2.1740278e-06 -1.3082692e-06 24 21.730246 21.728073 21.730246 0 0 0 2375454.8 1686547.9 2306548.6 -1.7972725e-06 2.108669e-06 -1.6910019e-06 Loop time of 0.48289 on 1 procs for 10 steps with 512 atoms Pair time (%) = 0.479337 (99.2643) Neigh time (%) = 0 (0) Comm time (%) = 0.000632048 (0.130889) Outpt time (%) = 0.0026505 (0.548883) Other time (%) = 0.00026989 (0.0558906) Nlocal: 512 ave 512 max 512 min Histogram: 1 0 0 0 0 0 0 0 0 0 Nghost: 4861 ave 4861 max 4861 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 FullNghs: 212992 ave 212992 max 212992 min Histogram: 1 0 0 0 0 0 0 0 0 0 Total # of neighbors = 212992 Ave neighs/atom = 416 Neighbor list builds = 0 Dangerous builds = 0 ## strain yz, measure s_yz: calculates C44 fix 2 all deform 1 yz erate 0.0001 remap x compute perfyz all stress/atom pair compute fyz all reduce sum c_perfyz[1] c_perfyz[2] c_perfyz[3] c_perfyz[4] c_perfyz[5] c_perfyz[6] thermo_style custom step lx ly lz xy xz yz c_fyz[1] c_fyz[2] c_fyz[3] c_fyz[4] c_fyz[5] c_fyz[6] run 10 Memory usage per processor = 4.25336 Mbytes Step Lx Ly Lz Xy Xz Yz fyz[1] fyz[2] fyz[3] fyz[4] fyz[5] fyz[6] 24 21.730246 21.728073 21.730246 0 0 0 2452715.2 1763811.4 2452715.2 -1.7548117e-06 3.6087566e-06 -3.6198628e-06 25 21.730246 21.728073 21.730246 0 0 4.3460492e-07 2452715.2 1763811.4 2452715.2 -1.7167978e-06 3.4304272e-06 -2.9804569e-06 26 21.730246 21.728073 21.730246 0 0 8.6920984e-07 2452715.2 1763811.4 2452715.2 -1.8729445e-06 4.5840765e-06 243.65136 27 21.730246 21.728073 21.730246 0 0 1.3038148e-06 2452715.2 1763811.4 2452715.2 -1.2316967e-06 2.6286266e-06 487.30276 28 21.730246 21.728073 21.730246 0 0 1.7384197e-06 2452715.2 1763811.4 2452715.2 -1.3251453e-06 2.7225014e-06 730.95419 29 21.730246 21.728073 21.730246 0 0 2.1730246e-06 2452715.2 1763811.4 2452715.2 -8.5464495e-07 -6.3592996e-07 974.60551 30 21.730246 21.728073 21.730246 0 0 2.6076295e-06 2452715.2 1763811.4 2452715.2 -1.7272259e-06 2.0497545e-06 1218.2569 31 21.730246 21.728073 21.730246 0 0 3.0422344e-06 2452715.2 1763811.4 2452715.2 -4.6626464e-07 2.1955509e-06 1461.9083 32 21.730246 21.728073 21.730246 0 0 3.4768394e-06 2452715.2 1763811.4 2452715.2 -1.1296433e-06 2.2397275e-06 1705.5598 33 21.730246 21.728073 21.730246 0 0 3.9114443e-06 2452715.2 1763811.4 2452715.2 -1.388603e-06 1.2425658e-06 1949.2111 34 21.730246 21.728073 21.730246 0 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 -1.1793341e-06 1.7092936e-06 2192.8625 Loop time of 0.483123 on 1 procs for 10 steps with 512 atoms Pair time (%) = 0.479436 (99.2368) Neigh time (%) = 0 (0) Comm time (%) = 0.000645638 (0.133638) Outpt time (%) = 0.00276113 (0.571516) Other time (%) = 0.00028038 (0.058035) Nlocal: 512 ave 512 max 512 min Histogram: 1 0 0 0 0 0 0 0 0 0 Nghost: 4861 ave 4861 max 4861 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 FullNghs: 212992 ave 212992 max 212992 min Histogram: 1 0 0 0 0 0 0 0 0 0 Total # of neighbors = 212992 Ave neighs/atom = 416 Neighbor list builds = 0 Dangerous builds = 0 ## strain xy, measure s_xy: calculates C66 fix 2 all deform 1 xy erate 0.0001 remap x compute perfxy all stress/atom pair compute fxy all reduce sum c_perfxy[1] c_perfxy[2] c_perfxy[3] c_perfxy[4] c_perfxy[5] c_perfxy[6] thermo_style custom step lx ly lz xy xz yz c_fxy[1] c_fxy[2] c_fxy[3] c_fxy[4] c_fxy[5] c_fxy[6] run 10 Memory usage per processor = 4.71113 Mbytes Step Lx Ly Lz Xy Xz Yz fxy[1] fxy[2] fxy[3] fxy[4] fxy[5] fxy[6] 34 21.730246 21.728073 21.730246 0 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 -1.7294679e-06 4.8293026e-06 2436.5139 35 21.730246 21.728073 21.730246 4.3456146e-07 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 -1.4630595e-06 4.5052213e-06 2436.5139 36 21.730246 21.728073 21.730246 8.6912293e-07 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 243.63758 -0.00012576585 2436.5139 37 21.730246 21.728073 21.730246 1.3036844e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 487.27522 -0.00025542614 2436.5139 38 21.730246 21.728073 21.730246 1.7382459e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 730.91286 -0.00038565598 2436.5139 39 21.730246 21.728073 21.730246 2.1728073e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 974.55045 -0.00051669611 2436.5138 40 21.730246 21.728073 21.730246 2.6073688e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 1218.188 -0.00064706412 2436.5139 41 21.730246 21.728073 21.730246 3.0419303e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 1461.8257 -0.0007779958 2436.5139 42 21.730246 21.728073 21.730246 3.4764917e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 1705.4633 -0.00090716273 2436.5138 43 21.730246 21.728073 21.730246 3.9110532e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 1949.1009 -0.001038008 2436.5138 44 21.730246 21.728073 21.730246 4.3456146e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 2192.7385 -0.0011663311 2436.5138 Loop time of 0.484576 on 1 procs for 10 steps with 512 atoms Pair time (%) = 0.480966 (99.255) Neigh time (%) = 0 (0) Comm time (%) = 0.000598431 (0.123496) Outpt time (%) = 0.00274968 (0.567441) Other time (%) = 0.000261784 (0.0540232) Nlocal: 512 ave 512 max 512 min Histogram: 1 0 0 0 0 0 0 0 0 0 Nghost: 4861 ave 4861 max 4861 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 FullNghs: 212992 ave 212992 max 212992 min Histogram: 1 0 0 0 0 0 0 0 0 0 Total # of neighbors = 212992 Ave neighs/atom = 416 Neighbor list builds = 0 Dangerous builds = 0