LAMMPS (18 Feb 2013) # 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 2 by 2 MPI processor grid create_atoms 1 box Created 512 atoms mass 1 29.0 change_box all triclinic triclinic box = (0 0 0) to (21.724 21.724 21.724) with tilt (0 0 0) 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 (min.cpp:173) Memory usage per processor = 3.94669 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 0.0780766 on 4 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 (%) = 0.0592672 (75.9091) Neigh time (%) = 0 (0) Comm time (%) = 0.0172435 (22.0854) Outpt time (%) = 3.74317e-05 (0.0479423) Other time (%) = 0.00152844 (1.95762) Nlocal: 128 ave 164 max 100 min Histogram: 1 0 0 2 0 0 0 0 0 1 Nghost: 3073 ave 3101 max 3037 min Histogram: 1 0 0 0 0 0 2 0 0 1 Neighs: 0 ave 0 max 0 min Histogram: 4 0 0 0 0 0 0 0 0 0 FullNghs: 53248 ave 68224 max 41600 min Histogram: 1 0 0 2 0 0 0 0 0 1 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 (verlet.cpp:54) Memory usage per processor = 2.95487 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 0.00455427 on 4 procs for 1 steps with 512 atoms Pair time (%) = 0.00345755 (75.9188) Neigh time (%) = 0 (0) Comm time (%) = 0.00106198 (23.3182) Outpt time (%) = 2.22921e-05 (0.489478) Other time (%) = 1.24574e-05 (0.273532) Nlocal: 128 ave 164 max 100 min Histogram: 1 0 0 2 0 0 0 0 0 1 Nghost: 3073 ave 3101 max 3037 min Histogram: 1 0 0 0 0 0 2 0 0 1 Neighs: 0 ave 0 max 0 min Histogram: 4 0 0 0 0 0 0 0 0 0 FullNghs: 53248 ave 68224 max 41600 min Histogram: 1 0 0 2 0 0 0 0 0 1 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 (output.cpp:663) run 10 Memory usage per processor = 3.41263 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 4.3524877e-06 1.8042579e-06 4.1896632e-06 5 21.728291 21.728073 21.728073 0 0 0 217976.4 217976.4 217976.4 3.9149761e-06 3.2372561e-06 3.502927e-06 6 21.728508 21.728073 21.728073 0 0 0 364177.1 295296.39 295296.39 4.1166557e-06 -1.2651413e-06 4.8424433e-06 7 21.728725 21.728073 21.728073 0 0 0 510377.09 372612.84 372612.84 4.4157935e-06 3.4555783e-06 3.5524659e-06 8 21.728942 21.728073 21.728073 0 0 0 656576.36 449925.76 449925.76 3.5670296e-06 3.0278352e-06 -7.8505045e-07 9 21.72916 21.728073 21.728073 0 0 0 802774.92 527235.13 527235.13 -5.1605584e-06 -4.0956773e-06 1.1117963e-06 10 21.729377 21.728073 21.728073 0 0 0 948972.76 604540.97 604540.97 3.8245737e-06 2.4901528e-06 4.1996836e-07 11 21.729594 21.728073 21.728073 0 0 0 1095169.9 681843.26 681843.26 3.6820717e-06 2.7936078e-06 9.7033933e-07 12 21.729811 21.728073 21.728073 0 0 0 1241366.3 759142.02 759142.02 2.5991175e-06 2.4533026e-06 8.3157649e-08 13 21.730029 21.728073 21.728073 0 0 0 1387562 836437.23 836437.23 3.721416e-06 2.9778369e-06 1.060601e-06 14 21.730246 21.728073 21.728073 0 0 0 1533757 913728.91 913728.91 -4.9700036e-06 -5.1268692e-06 7.7885069e-07 Loop time of 0.0553849 on 4 procs for 10 steps with 512 atoms Pair time (%) = 0.0413134 (74.5933) Neigh time (%) = 0 (0) Comm time (%) = 0.0119895 (21.6477) Outpt time (%) = 0.00200319 (3.61686) Other time (%) = 7.87377e-05 (0.142165) Nlocal: 128 ave 164 max 100 min Histogram: 1 0 0 2 0 0 0 0 0 1 Nghost: 3073 ave 3101 max 3037 min Histogram: 1 0 0 0 0 0 2 0 0 1 Neighs: 0 ave 0 max 0 min Histogram: 4 0 0 0 0 0 0 0 0 0 FullNghs: 53248 ave 68224 max 41600 min Histogram: 1 0 0 2 0 0 0 0 0 1 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 = 3.8704 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 3.687345e-06 1.6819153e-06 4.1240524e-06 15 21.730246 21.728073 21.728291 0 0 0 1679951.2 991017.05 991017.05 3.3938808e-06 3.2093146e-06 3.3381904e-06 16 21.730246 21.728073 21.728508 0 0 0 1757243.6 1068312.4 1137190.1 2.8599709e-06 3.5571018e-07 3.402267e-06 17 21.730246 21.728073 21.728725 0 0 0 1834532.4 1145604.2 1283362.4 3.5833832e-06 3.2299854e-06 3.6621754e-06 18 21.730246 21.728073 21.728942 0 0 0 1911817.6 1222892.5 1429534 3.7053848e-06 3.4835013e-06 -3.9113334e-06 19 21.730246 21.728073 21.72916 0 0 0 1989099.3 1300177.3 1575704.9 -4.3298305e-08 3.1904447e-06 -3.1048376e-06 20 21.730246 21.728073 21.729377 0 0 0 2066377.5 1377458.5 1721875.1 -2.1040293e-07 3.325676e-06 3.9472127e-06 21 21.730246 21.728073 21.729594 0 0 0 2143652.1 1454736.2 1868044.5 4.8927752e-07 3.7764208e-06 4.2422297e-06 22 21.730246 21.728073 21.729811 0 0 0 2220923.2 1532010.3 2014213.3 3.4578611e-07 3.4348778e-06 3.5302571e-06 23 21.730246 21.728073 21.730029 0 0 0 2298190.7 1609280.9 2160381.3 2.7596926e-07 3.1082209e-06 3.2371412e-06 24 21.730246 21.728073 21.730246 0 0 0 2375454.8 1686547.9 2306548.6 6.5005639e-07 3.5157638e-06 3.3216552e-06 Loop time of 0.0553373 on 4 procs for 10 steps with 512 atoms Pair time (%) = 0.0412204 (74.4894) Neigh time (%) = 0 (0) Comm time (%) = 0.0120674 (21.8069) Outpt time (%) = 0.00197399 (3.56719) Other time (%) = 7.55191e-05 (0.13647) Nlocal: 128 ave 164 max 100 min Histogram: 1 0 0 2 0 0 0 0 0 1 Nghost: 3073 ave 3101 max 3037 min Histogram: 1 0 0 0 0 0 2 0 0 1 Neighs: 0 ave 0 max 0 min Histogram: 4 0 0 0 0 0 0 0 0 0 FullNghs: 53248 ave 68224 max 41600 min Histogram: 1 0 0 2 0 0 0 0 0 1 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 = 4.32816 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 2.7488902e-06 2.2403278e-06 2.9646035e-06 25 21.730246 21.728073 21.730246 0 0 4.3460492e-07 2452715.2 1763811.4 2452715.2 1.8018491e-06 4.5267444e-06 1.4167929e-06 26 21.730246 21.728073 21.730246 0 0 8.6920984e-07 2452715.2 1763811.4 2452715.2 2.2612618e-06 6.3053213e-06 243.65137 27 21.730246 21.728073 21.730246 0 0 1.3038148e-06 2452715.2 1763811.4 2452715.2 2.6450284e-06 5.3647504e-06 487.30277 28 21.730246 21.728073 21.730246 0 0 1.7384197e-06 2452715.2 1763811.4 2452715.2 2.1283355e-06 5.8925162e-06 730.9542 29 21.730246 21.728073 21.730246 0 0 2.1730246e-06 2452715.2 1763811.4 2452715.2 2.1488507e-06 2.9390226e-06 974.60552 30 21.730246 21.728073 21.730246 0 0 2.6076295e-06 2452715.2 1763811.4 2452715.2 2.8780366e-06 5.7299178e-06 1218.2569 31 21.730246 21.728073 21.730246 0 0 3.0422344e-06 2452715.2 1763811.4 2452715.2 2.7906173e-06 6.1777239e-06 1461.9083 32 21.730246 21.728073 21.730246 0 0 3.4768394e-06 2452715.2 1763811.4 2452715.2 3.1628404e-06 6.9745551e-06 1705.5598 33 21.730246 21.728073 21.730246 0 0 3.9114443e-06 2452715.2 1763811.4 2452715.2 2.6040944e-06 4.8739276e-06 1949.2111 34 21.730246 21.728073 21.730246 0 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 2.3988573e-06 4.8943983e-06 2192.8625 Loop time of 0.0553365 on 4 procs for 10 steps with 512 atoms Pair time (%) = 0.0413296 (74.6877) Neigh time (%) = 0 (0) Comm time (%) = 0.0119735 (21.6376) Outpt time (%) = 0.00195616 (3.53503) Other time (%) = 7.73072e-05 (0.139704) Nlocal: 128 ave 164 max 100 min Histogram: 1 0 0 2 0 0 0 0 0 1 Nghost: 3073 ave 3101 max 3037 min Histogram: 1 0 0 0 0 0 2 0 0 1 Neighs: 0 ave 0 max 0 min Histogram: 4 0 0 0 0 0 0 0 0 0 FullNghs: 53248 ave 68224 max 41600 min Histogram: 1 0 0 2 0 0 0 0 0 1 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 = 4.78592 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 2.7629722e-06 6.2982358e-06 2436.5139 35 21.730246 21.728073 21.730246 4.3456146e-07 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 1.9222276e-06 7.9969235e-06 2436.5139 36 21.730246 21.728073 21.730246 8.6912293e-07 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 243.63759 -0.00012183818 2436.5139 37 21.730246 21.728073 21.730246 1.3036844e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 487.27523 -0.00025103477 2436.5139 38 21.730246 21.728073 21.730246 1.7382459e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 730.91287 -0.00038377747 2436.5139 39 21.730246 21.728073 21.730246 2.1728073e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 974.55045 -0.000512822 2436.5139 40 21.730246 21.728073 21.730246 2.6073688e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 1218.188 -0.00064353362 2436.5139 41 21.730246 21.728073 21.730246 3.0419303e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 1461.8257 -0.00077379758 2436.5139 42 21.730246 21.728073 21.730246 3.4764917e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 1705.4633 -0.00090375344 2436.5139 43 21.730246 21.728073 21.730246 3.9110532e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 1949.1009 -0.0010335056 2436.5139 44 21.730246 21.728073 21.730246 4.3456146e-06 0 4.3460492e-06 2452715.2 1763811.4 2452715.2 2192.7385 -0.0011635685 2436.5139 Loop time of 0.0511474 on 4 procs for 10 steps with 512 atoms Pair time (%) = 0.041354 (80.8526) Neigh time (%) = 0 (0) Comm time (%) = 0.0077486 (15.1496) Outpt time (%) = 0.00196868 (3.84904) Other time (%) = 7.61151e-05 (0.148815) Nlocal: 128 ave 152 max 112 min Histogram: 2 0 0 0 0 0 1 0 0 1 Nghost: 3073 ave 3089 max 3049 min Histogram: 1 0 0 0 1 0 0 0 0 2 Neighs: 0 ave 0 max 0 min Histogram: 4 0 0 0 0 0 0 0 0 0 FullNghs: 53248 ave 63232 max 46592 min Histogram: 2 0 0 0 0 0 1 0 0 1 Total # of neighbors = 212992 Ave neighs/atom = 416 Neighbor list builds = 0 Dangerous builds = 0