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686 Commits
patch_6Oct
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patch_21Fe
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| 2551619b07 | |||
| d8bf149edc | |||
| 473b12ded4 | |||
| 27c3149590 | |||
| 3b408d71fe | |||
| ebabc8f0bc | |||
| 232abf8534 | |||
| d22caf2658 | |||
| 3842aa6095 | |||
| 32c240978a | |||
| 212c2617f6 | |||
| 40f85c93ba | |||
| 2f02d98469 | |||
| 4553881fc2 | |||
| 81fcbcd99c | |||
| 82c6eb4675 | |||
| 8ed3f4226e | |||
| 9b7a0d7e1c | |||
| c9c2ae6c61 | |||
| 0229556b03 | |||
| 357d4517e8 | |||
| a4a97de84f |
@ -1,4 +1,4 @@
|
||||
LAMMPS (15 Feb 2016)
|
||||
LAMMPS (6 Oct 2016)
|
||||
# FENE beadspring benchmark
|
||||
|
||||
units lj
|
||||
@ -43,25 +43,25 @@ Neighbor list info ...
|
||||
master list distance cutoff = 1.52
|
||||
ghost atom cutoff = 1.52
|
||||
binsize = 0.76 -> bins = 45 45 45
|
||||
Memory usage per processor = 11.5189 Mbytes
|
||||
Memory usage per processor = 12.0423 Mbytes
|
||||
Step Temp E_pair E_mol TotEng Press
|
||||
0 0.97029772 0.44484087 20.494523 22.394765 4.6721833
|
||||
100 0.9729966 0.4361122 20.507698 22.40326 4.6548819
|
||||
Loop time of 0.978585 on 1 procs for 100 steps with 32000 atoms
|
||||
Loop time of 0.977647 on 1 procs for 100 steps with 32000 atoms
|
||||
|
||||
Performance: 105948.895 tau/day, 102.188 timesteps/s
|
||||
100.0% CPU use with 1 MPI tasks x no OpenMP threads
|
||||
Performance: 106050.541 tau/day, 102.286 timesteps/s
|
||||
99.9% CPU use with 1 MPI tasks x no OpenMP threads
|
||||
|
||||
MPI task timing breakdown:
|
||||
Section | min time | avg time | max time |%varavg| %total
|
||||
---------------------------------------------------------------
|
||||
Pair | 0.19562 | 0.19562 | 0.19562 | 0.0 | 19.99
|
||||
Bond | 0.087475 | 0.087475 | 0.087475 | 0.0 | 8.94
|
||||
Neigh | 0.44861 | 0.44861 | 0.44861 | 0.0 | 45.84
|
||||
Comm | 0.032932 | 0.032932 | 0.032932 | 0.0 | 3.37
|
||||
Output | 0.00010395 | 0.00010395 | 0.00010395 | 0.0 | 0.01
|
||||
Modify | 0.19413 | 0.19413 | 0.19413 | 0.0 | 19.84
|
||||
Other | | 0.01972 | | | 2.02
|
||||
Pair | 0.19421 | 0.19421 | 0.19421 | 0.0 | 19.86
|
||||
Bond | 0.08741 | 0.08741 | 0.08741 | 0.0 | 8.94
|
||||
Neigh | 0.45791 | 0.45791 | 0.45791 | 0.0 | 46.84
|
||||
Comm | 0.032649 | 0.032649 | 0.032649 | 0.0 | 3.34
|
||||
Output | 0.00012207 | 0.00012207 | 0.00012207 | 0.0 | 0.01
|
||||
Modify | 0.18071 | 0.18071 | 0.18071 | 0.0 | 18.48
|
||||
Other | | 0.02464 | | | 2.52
|
||||
|
||||
Nlocal: 32000 ave 32000 max 32000 min
|
||||
Histogram: 1 0 0 0 0 0 0 0 0 0
|
||||
@ -1,4 +1,4 @@
|
||||
LAMMPS (15 Feb 2016)
|
||||
LAMMPS (6 Oct 2016)
|
||||
# FENE beadspring benchmark
|
||||
|
||||
units lj
|
||||
@ -43,25 +43,25 @@ Neighbor list info ...
|
||||
master list distance cutoff = 1.52
|
||||
ghost atom cutoff = 1.52
|
||||
binsize = 0.76 -> bins = 45 45 45
|
||||
Memory usage per processor = 3.91518 Mbytes
|
||||
Memory usage per processor = 4.14663 Mbytes
|
||||
Step Temp E_pair E_mol TotEng Press
|
||||
0 0.97029772 0.44484087 20.494523 22.394765 4.6721833
|
||||
100 0.97145835 0.43803883 20.502691 22.397872 4.626988
|
||||
Loop time of 0.271187 on 4 procs for 100 steps with 32000 atoms
|
||||
Loop time of 0.269205 on 4 procs for 100 steps with 32000 atoms
|
||||
|
||||
Performance: 382319.453 tau/day, 368.749 timesteps/s
|
||||
99.6% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
Performance: 385133.446 tau/day, 371.464 timesteps/s
|
||||
99.8% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
|
||||
MPI task timing breakdown:
|
||||
Section | min time | avg time | max time |%varavg| %total
|
||||
---------------------------------------------------------------
|
||||
Pair | 0.048621 | 0.050076 | 0.051229 | 0.4 | 18.47
|
||||
Bond | 0.022254 | 0.022942 | 0.023567 | 0.3 | 8.46
|
||||
Neigh | 0.11873 | 0.11881 | 0.11887 | 0.0 | 43.81
|
||||
Comm | 0.019066 | 0.021357 | 0.024297 | 1.3 | 7.88
|
||||
Output | 5.0068e-05 | 5.5015e-05 | 6.1035e-05 | 0.1 | 0.02
|
||||
Modify | 0.048737 | 0.050198 | 0.051231 | 0.4 | 18.51
|
||||
Other | | 0.007751 | | | 2.86
|
||||
Pair | 0.049383 | 0.049756 | 0.049988 | 0.1 | 18.48
|
||||
Bond | 0.022701 | 0.022813 | 0.022872 | 0.0 | 8.47
|
||||
Neigh | 0.11982 | 0.12002 | 0.12018 | 0.0 | 44.58
|
||||
Comm | 0.020274 | 0.021077 | 0.022348 | 0.5 | 7.83
|
||||
Output | 5.3167e-05 | 5.6148e-05 | 6.3181e-05 | 0.1 | 0.02
|
||||
Modify | 0.046276 | 0.046809 | 0.047016 | 0.1 | 17.39
|
||||
Other | | 0.008669 | | | 3.22
|
||||
|
||||
Nlocal: 8000 ave 8030 max 7974 min
|
||||
Histogram: 1 0 0 1 0 1 0 0 0 1
|
||||
@ -1,4 +1,4 @@
|
||||
LAMMPS (15 Feb 2016)
|
||||
LAMMPS (6 Oct 2016)
|
||||
# FENE beadspring benchmark
|
||||
|
||||
variable x index 1
|
||||
@ -59,25 +59,25 @@ Neighbor list info ...
|
||||
master list distance cutoff = 1.52
|
||||
ghost atom cutoff = 1.52
|
||||
binsize = 0.76 -> bins = 89 89 45
|
||||
Memory usage per processor = 12.8735 Mbytes
|
||||
Memory usage per processor = 13.2993 Mbytes
|
||||
Step Temp E_pair E_mol TotEng Press
|
||||
0 0.97027498 0.44484087 20.494523 22.394765 4.6721833
|
||||
100 0.97682955 0.44239968 20.500229 22.407862 4.6527025
|
||||
Loop time of 1.20889 on 4 procs for 100 steps with 128000 atoms
|
||||
Loop time of 1.14845 on 4 procs for 100 steps with 128000 atoms
|
||||
|
||||
Performance: 85764.410 tau/day, 82.720 timesteps/s
|
||||
99.8% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
Performance: 90277.919 tau/day, 87.074 timesteps/s
|
||||
99.9% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
|
||||
MPI task timing breakdown:
|
||||
Section | min time | avg time | max time |%varavg| %total
|
||||
---------------------------------------------------------------
|
||||
Pair | 0.21738 | 0.23306 | 0.23926 | 1.9 | 19.28
|
||||
Bond | 0.094536 | 0.10196 | 0.10534 | 1.4 | 8.43
|
||||
Neigh | 0.52311 | 0.52392 | 0.52519 | 0.1 | 43.34
|
||||
Comm | 0.090161 | 0.10022 | 0.12557 | 4.7 | 8.29
|
||||
Output | 0.00012207 | 0.00017327 | 0.00019598 | 0.2 | 0.01
|
||||
Modify | 0.19662 | 0.20262 | 0.20672 | 0.8 | 16.76
|
||||
Other | | 0.04694 | | | 3.88
|
||||
Pair | 0.2203 | 0.22207 | 0.22386 | 0.3 | 19.34
|
||||
Bond | 0.094861 | 0.095302 | 0.095988 | 0.1 | 8.30
|
||||
Neigh | 0.52127 | 0.5216 | 0.52189 | 0.0 | 45.42
|
||||
Comm | 0.079585 | 0.082159 | 0.084366 | 0.7 | 7.15
|
||||
Output | 0.00013304 | 0.00015306 | 0.00018501 | 0.2 | 0.01
|
||||
Modify | 0.18351 | 0.18419 | 0.1856 | 0.2 | 16.04
|
||||
Other | | 0.04298 | | | 3.74
|
||||
|
||||
Nlocal: 32000 ave 32015 max 31983 min
|
||||
Histogram: 1 0 1 0 0 0 0 0 1 1
|
||||
@ -1,4 +1,4 @@
|
||||
LAMMPS (15 Feb 2016)
|
||||
LAMMPS (6 Oct 2016)
|
||||
# LAMMPS benchmark of granular flow
|
||||
# chute flow of 32000 atoms with frozen base at 26 degrees
|
||||
|
||||
@ -47,24 +47,24 @@ Neighbor list info ...
|
||||
master list distance cutoff = 1.1
|
||||
ghost atom cutoff = 1.1
|
||||
binsize = 0.55 -> bins = 73 37 68
|
||||
Memory usage per processor = 15.567 Mbytes
|
||||
Step Atoms KinEng 1 Volume
|
||||
Memory usage per processor = 16.0904 Mbytes
|
||||
Step Atoms KinEng c_1 Volume
|
||||
0 32000 784139.13 1601.1263 29833.783
|
||||
100 32000 784292.08 1571.0968 29834.707
|
||||
Loop time of 0.550482 on 1 procs for 100 steps with 32000 atoms
|
||||
Loop time of 0.534174 on 1 procs for 100 steps with 32000 atoms
|
||||
|
||||
Performance: 1569.534 tau/day, 181.659 timesteps/s
|
||||
100.1% CPU use with 1 MPI tasks x no OpenMP threads
|
||||
Performance: 1617.451 tau/day, 187.205 timesteps/s
|
||||
99.8% CPU use with 1 MPI tasks x no OpenMP threads
|
||||
|
||||
MPI task timing breakdown:
|
||||
Section | min time | avg time | max time |%varavg| %total
|
||||
---------------------------------------------------------------
|
||||
Pair | 0.33849 | 0.33849 | 0.33849 | 0.0 | 61.49
|
||||
Neigh | 0.040353 | 0.040353 | 0.040353 | 0.0 | 7.33
|
||||
Comm | 0.018023 | 0.018023 | 0.018023 | 0.0 | 3.27
|
||||
Output | 0.00020385 | 0.00020385 | 0.00020385 | 0.0 | 0.04
|
||||
Modify | 0.13155 | 0.13155 | 0.13155 | 0.0 | 23.90
|
||||
Other | | 0.02186 | | | 3.97
|
||||
Pair | 0.33346 | 0.33346 | 0.33346 | 0.0 | 62.43
|
||||
Neigh | 0.043902 | 0.043902 | 0.043902 | 0.0 | 8.22
|
||||
Comm | 0.018391 | 0.018391 | 0.018391 | 0.0 | 3.44
|
||||
Output | 0.00022411 | 0.00022411 | 0.00022411 | 0.0 | 0.04
|
||||
Modify | 0.11666 | 0.11666 | 0.11666 | 0.0 | 21.84
|
||||
Other | | 0.02153 | | | 4.03
|
||||
|
||||
Nlocal: 32000 ave 32000 max 32000 min
|
||||
Histogram: 1 0 0 0 0 0 0 0 0 0
|
||||
@ -1,4 +1,4 @@
|
||||
LAMMPS (15 Feb 2016)
|
||||
LAMMPS (6 Oct 2016)
|
||||
# LAMMPS benchmark of granular flow
|
||||
# chute flow of 32000 atoms with frozen base at 26 degrees
|
||||
|
||||
@ -47,24 +47,24 @@ Neighbor list info ...
|
||||
master list distance cutoff = 1.1
|
||||
ghost atom cutoff = 1.1
|
||||
binsize = 0.55 -> bins = 73 37 68
|
||||
Memory usage per processor = 6.81783 Mbytes
|
||||
Step Atoms KinEng 1 Volume
|
||||
Memory usage per processor = 7.04927 Mbytes
|
||||
Step Atoms KinEng c_1 Volume
|
||||
0 32000 784139.13 1601.1263 29833.783
|
||||
100 32000 784292.08 1571.0968 29834.707
|
||||
Loop time of 0.13141 on 4 procs for 100 steps with 32000 atoms
|
||||
Loop time of 0.171815 on 4 procs for 100 steps with 32000 atoms
|
||||
|
||||
Performance: 6574.833 tau/day, 760.976 timesteps/s
|
||||
99.3% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
Performance: 5028.653 tau/day, 582.020 timesteps/s
|
||||
99.7% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
|
||||
MPI task timing breakdown:
|
||||
Section | min time | avg time | max time |%varavg| %total
|
||||
---------------------------------------------------------------
|
||||
Pair | 0.062505 | 0.067 | 0.07152 | 1.5 | 50.99
|
||||
Neigh | 0.010041 | 0.0101 | 0.010178 | 0.1 | 7.69
|
||||
Comm | 0.012347 | 0.012895 | 0.013444 | 0.5 | 9.81
|
||||
Output | 6.3896e-05 | 0.00010294 | 0.00014091 | 0.3 | 0.08
|
||||
Modify | 0.031802 | 0.032348 | 0.032897 | 0.3 | 24.62
|
||||
Other | | 0.008965 | | | 6.82
|
||||
Pair | 0.093691 | 0.096898 | 0.10005 | 0.8 | 56.40
|
||||
Neigh | 0.011976 | 0.012059 | 0.012146 | 0.1 | 7.02
|
||||
Comm | 0.016384 | 0.017418 | 0.018465 | 0.8 | 10.14
|
||||
Output | 7.7963e-05 | 0.00010747 | 0.00013304 | 0.2 | 0.06
|
||||
Modify | 0.031744 | 0.031943 | 0.032167 | 0.1 | 18.59
|
||||
Other | | 0.01339 | | | 7.79
|
||||
|
||||
Nlocal: 8000 ave 8008 max 7992 min
|
||||
Histogram: 2 0 0 0 0 0 0 0 0 2
|
||||
@ -1,4 +1,4 @@
|
||||
LAMMPS (15 Feb 2016)
|
||||
LAMMPS (6 Oct 2016)
|
||||
# LAMMPS benchmark of granular flow
|
||||
# chute flow of 32000 atoms with frozen base at 26 degrees
|
||||
|
||||
@ -57,24 +57,24 @@ Neighbor list info ...
|
||||
master list distance cutoff = 1.1
|
||||
ghost atom cutoff = 1.1
|
||||
binsize = 0.55 -> bins = 146 73 68
|
||||
Memory usage per processor = 15.7007 Mbytes
|
||||
Step Atoms KinEng 1 Volume
|
||||
Memory usage per processor = 16.1265 Mbytes
|
||||
Step Atoms KinEng c_1 Volume
|
||||
0 128000 3136556.5 6404.5051 119335.13
|
||||
100 128000 3137168.3 6284.3873 119338.83
|
||||
Loop time of 0.906913 on 4 procs for 100 steps with 128000 atoms
|
||||
Loop time of 0.832365 on 4 procs for 100 steps with 128000 atoms
|
||||
|
||||
Performance: 952.683 tau/day, 110.264 timesteps/s
|
||||
99.7% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
Performance: 1038.006 tau/day, 120.140 timesteps/s
|
||||
99.8% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
|
||||
MPI task timing breakdown:
|
||||
Section | min time | avg time | max time |%varavg| %total
|
||||
---------------------------------------------------------------
|
||||
Pair | 0.51454 | 0.53094 | 0.55381 | 2.0 | 58.54
|
||||
Neigh | 0.042597 | 0.043726 | 0.045801 | 0.6 | 4.82
|
||||
Comm | 0.063027 | 0.064657 | 0.067367 | 0.7 | 7.13
|
||||
Output | 0.00024891 | 0.00059718 | 0.00086498 | 1.0 | 0.07
|
||||
Modify | 0.16508 | 0.17656 | 0.1925 | 2.6 | 19.47
|
||||
Other | | 0.09043 | | | 9.97
|
||||
Pair | 0.5178 | 0.52208 | 0.52793 | 0.5 | 62.72
|
||||
Neigh | 0.047003 | 0.047113 | 0.047224 | 0.0 | 5.66
|
||||
Comm | 0.05233 | 0.052988 | 0.053722 | 0.2 | 6.37
|
||||
Output | 0.00024986 | 0.00032717 | 0.00036693 | 0.3 | 0.04
|
||||
Modify | 0.15517 | 0.15627 | 0.15808 | 0.3 | 18.77
|
||||
Other | | 0.0536 | | | 6.44
|
||||
|
||||
Nlocal: 32000 ave 32000 max 32000 min
|
||||
Histogram: 4 0 0 0 0 0 0 0 0 0
|
||||
@ -87,4 +87,4 @@ Total # of neighbors = 460532
|
||||
Ave neighs/atom = 3.59791
|
||||
Neighbor list builds = 2
|
||||
Dangerous builds = 0
|
||||
Total wall time: 0:00:01
|
||||
Total wall time: 0:00:00
|
||||
@ -1,4 +1,4 @@
|
||||
LAMMPS (15 Feb 2016)
|
||||
LAMMPS (6 Oct 2016)
|
||||
# bulk Cu lattice
|
||||
|
||||
variable x index 1
|
||||
@ -49,25 +49,25 @@ Neighbor list info ...
|
||||
master list distance cutoff = 5.95
|
||||
ghost atom cutoff = 5.95
|
||||
binsize = 2.975 -> bins = 25 25 25
|
||||
Memory usage per processor = 10.2238 Mbytes
|
||||
Memory usage per processor = 11.2238 Mbytes
|
||||
Step Temp E_pair E_mol TotEng Press
|
||||
0 1600 -113280 0 -106662.09 18703.573
|
||||
50 781.69049 -109873.35 0 -106640.13 52273.088
|
||||
100 801.832 -109957.3 0 -106640.77 51322.821
|
||||
Loop time of 5.90097 on 1 procs for 100 steps with 32000 atoms
|
||||
Loop time of 5.96529 on 1 procs for 100 steps with 32000 atoms
|
||||
|
||||
Performance: 7.321 ns/day, 3.278 hours/ns, 16.946 timesteps/s
|
||||
Performance: 7.242 ns/day, 3.314 hours/ns, 16.764 timesteps/s
|
||||
99.9% CPU use with 1 MPI tasks x no OpenMP threads
|
||||
|
||||
MPI task timing breakdown:
|
||||
Section | min time | avg time | max time |%varavg| %total
|
||||
---------------------------------------------------------------
|
||||
Pair | 5.2121 | 5.2121 | 5.2121 | 0.0 | 88.33
|
||||
Neigh | 0.58212 | 0.58212 | 0.58212 | 0.0 | 9.86
|
||||
Comm | 0.030392 | 0.030392 | 0.030392 | 0.0 | 0.52
|
||||
Output | 0.00023389 | 0.00023389 | 0.00023389 | 0.0 | 0.00
|
||||
Modify | 0.060871 | 0.060871 | 0.060871 | 0.0 | 1.03
|
||||
Other | | 0.01527 | | | 0.26
|
||||
Pair | 5.2743 | 5.2743 | 5.2743 | 0.0 | 88.42
|
||||
Neigh | 0.59212 | 0.59212 | 0.59212 | 0.0 | 9.93
|
||||
Comm | 0.030399 | 0.030399 | 0.030399 | 0.0 | 0.51
|
||||
Output | 0.00026202 | 0.00026202 | 0.00026202 | 0.0 | 0.00
|
||||
Modify | 0.050487 | 0.050487 | 0.050487 | 0.0 | 0.85
|
||||
Other | | 0.01776 | | | 0.30
|
||||
|
||||
Nlocal: 32000 ave 32000 max 32000 min
|
||||
Histogram: 1 0 0 0 0 0 0 0 0 0
|
||||
@ -1,4 +1,4 @@
|
||||
LAMMPS (15 Feb 2016)
|
||||
LAMMPS (6 Oct 2016)
|
||||
# bulk Cu lattice
|
||||
|
||||
variable x index 1
|
||||
@ -49,25 +49,25 @@ Neighbor list info ...
|
||||
master list distance cutoff = 5.95
|
||||
ghost atom cutoff = 5.95
|
||||
binsize = 2.975 -> bins = 25 25 25
|
||||
Memory usage per processor = 5.09629 Mbytes
|
||||
Memory usage per processor = 5.59629 Mbytes
|
||||
Step Temp E_pair E_mol TotEng Press
|
||||
0 1600 -113280 0 -106662.09 18703.573
|
||||
50 781.69049 -109873.35 0 -106640.13 52273.088
|
||||
100 801.832 -109957.3 0 -106640.77 51322.821
|
||||
Loop time of 1.58019 on 4 procs for 100 steps with 32000 atoms
|
||||
Loop time of 1.64562 on 4 procs for 100 steps with 32000 atoms
|
||||
|
||||
Performance: 27.338 ns/day, 0.878 hours/ns, 63.284 timesteps/s
|
||||
Performance: 26.252 ns/day, 0.914 hours/ns, 60.767 timesteps/s
|
||||
99.8% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
|
||||
MPI task timing breakdown:
|
||||
Section | min time | avg time | max time |%varavg| %total
|
||||
---------------------------------------------------------------
|
||||
Pair | 1.3617 | 1.366 | 1.3723 | 0.4 | 86.45
|
||||
Neigh | 0.15123 | 0.15232 | 0.15374 | 0.2 | 9.64
|
||||
Comm | 0.033429 | 0.041275 | 0.047066 | 2.7 | 2.61
|
||||
Output | 0.00011301 | 0.0001573 | 0.000211 | 0.3 | 0.01
|
||||
Modify | 0.014694 | 0.015085 | 0.015421 | 0.2 | 0.95
|
||||
Other | | 0.005342 | | | 0.34
|
||||
Pair | 1.408 | 1.4175 | 1.4341 | 0.9 | 86.14
|
||||
Neigh | 0.15512 | 0.15722 | 0.16112 | 0.6 | 9.55
|
||||
Comm | 0.029105 | 0.049986 | 0.061822 | 5.8 | 3.04
|
||||
Output | 0.00010991 | 0.00011539 | 0.00012302 | 0.0 | 0.01
|
||||
Modify | 0.013383 | 0.013573 | 0.013883 | 0.2 | 0.82
|
||||
Other | | 0.007264 | | | 0.44
|
||||
|
||||
Nlocal: 8000 ave 8008 max 7993 min
|
||||
Histogram: 2 0 0 0 0 0 0 0 1 1
|
||||
@ -1,4 +1,4 @@
|
||||
LAMMPS (15 Feb 2016)
|
||||
LAMMPS (6 Oct 2016)
|
||||
# bulk Cu lattice
|
||||
|
||||
variable x index 1
|
||||
@ -49,25 +49,25 @@ Neighbor list info ...
|
||||
master list distance cutoff = 5.95
|
||||
ghost atom cutoff = 5.95
|
||||
binsize = 2.975 -> bins = 49 49 25
|
||||
Memory usage per processor = 10.1402 Mbytes
|
||||
Memory usage per processor = 11.1402 Mbytes
|
||||
Step Temp E_pair E_mol TotEng Press
|
||||
0 1600 -453120 0 -426647.73 18704.012
|
||||
50 779.50001 -439457.02 0 -426560.06 52355.276
|
||||
100 797.97828 -439764.76 0 -426562.07 51474.74
|
||||
Loop time of 6.46849 on 4 procs for 100 steps with 128000 atoms
|
||||
Loop time of 6.60121 on 4 procs for 100 steps with 128000 atoms
|
||||
|
||||
Performance: 6.679 ns/day, 3.594 hours/ns, 15.460 timesteps/s
|
||||
Performance: 6.544 ns/day, 3.667 hours/ns, 15.149 timesteps/s
|
||||
99.9% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
|
||||
MPI task timing breakdown:
|
||||
Section | min time | avg time | max time |%varavg| %total
|
||||
---------------------------------------------------------------
|
||||
Pair | 5.581 | 5.5997 | 5.6265 | 0.8 | 86.57
|
||||
Neigh | 0.65287 | 0.658 | 0.66374 | 0.5 | 10.17
|
||||
Comm | 0.075706 | 0.11015 | 0.13655 | 7.2 | 1.70
|
||||
Output | 0.00026488 | 0.00028312 | 0.00029302 | 0.1 | 0.00
|
||||
Modify | 0.069607 | 0.072407 | 0.074555 | 0.7 | 1.12
|
||||
Other | | 0.02794 | | | 0.43
|
||||
Pair | 5.6676 | 5.7011 | 5.7469 | 1.3 | 86.36
|
||||
Neigh | 0.66423 | 0.67119 | 0.68082 | 0.7 | 10.17
|
||||
Comm | 0.079367 | 0.13668 | 0.1791 | 10.5 | 2.07
|
||||
Output | 0.00026989 | 0.00028622 | 0.00031209 | 0.1 | 0.00
|
||||
Modify | 0.060046 | 0.062203 | 0.065009 | 0.9 | 0.94
|
||||
Other | | 0.02974 | | | 0.45
|
||||
|
||||
Nlocal: 32000 ave 32092 max 31914 min
|
||||
Histogram: 1 0 0 1 0 1 0 0 0 1
|
||||
@ -1,4 +1,4 @@
|
||||
LAMMPS (15 Feb 2016)
|
||||
LAMMPS (6 Oct 2016)
|
||||
# 3d Lennard-Jones melt
|
||||
|
||||
variable x index 1
|
||||
@ -50,20 +50,20 @@ Memory usage per processor = 8.21387 Mbytes
|
||||
Step Temp E_pair E_mol TotEng Press
|
||||
0 1.44 -6.7733681 0 -4.6134356 -5.0197073
|
||||
100 0.7574531 -5.7585055 0 -4.6223613 0.20726105
|
||||
Loop time of 2.26309 on 1 procs for 100 steps with 32000 atoms
|
||||
Loop time of 2.26185 on 1 procs for 100 steps with 32000 atoms
|
||||
|
||||
Performance: 19088.920 tau/day, 44.187 timesteps/s
|
||||
Performance: 19099.377 tau/day, 44.212 timesteps/s
|
||||
99.9% CPU use with 1 MPI tasks x no OpenMP threads
|
||||
|
||||
MPI task timing breakdown:
|
||||
Section | min time | avg time | max time |%varavg| %total
|
||||
---------------------------------------------------------------
|
||||
Pair | 1.9341 | 1.9341 | 1.9341 | 0.0 | 85.46
|
||||
Neigh | 0.2442 | 0.2442 | 0.2442 | 0.0 | 10.79
|
||||
Comm | 0.024158 | 0.024158 | 0.024158 | 0.0 | 1.07
|
||||
Output | 0.00011611 | 0.00011611 | 0.00011611 | 0.0 | 0.01
|
||||
Modify | 0.053222 | 0.053222 | 0.053222 | 0.0 | 2.35
|
||||
Other | | 0.007258 | | | 0.32
|
||||
Pair | 1.9328 | 1.9328 | 1.9328 | 0.0 | 85.45
|
||||
Neigh | 0.2558 | 0.2558 | 0.2558 | 0.0 | 11.31
|
||||
Comm | 0.024061 | 0.024061 | 0.024061 | 0.0 | 1.06
|
||||
Output | 0.00012612 | 0.00012612 | 0.00012612 | 0.0 | 0.01
|
||||
Modify | 0.040887 | 0.040887 | 0.040887 | 0.0 | 1.81
|
||||
Other | | 0.008214 | | | 0.36
|
||||
|
||||
Nlocal: 32000 ave 32000 max 32000 min
|
||||
Histogram: 1 0 0 0 0 0 0 0 0 0
|
||||
@ -1,4 +1,4 @@
|
||||
LAMMPS (15 Feb 2016)
|
||||
LAMMPS (6 Oct 2016)
|
||||
# 3d Lennard-Jones melt
|
||||
|
||||
variable x index 1
|
||||
@ -50,20 +50,20 @@ Memory usage per processor = 4.09506 Mbytes
|
||||
Step Temp E_pair E_mol TotEng Press
|
||||
0 1.44 -6.7733681 0 -4.6134356 -5.0197073
|
||||
100 0.7574531 -5.7585055 0 -4.6223613 0.20726105
|
||||
Loop time of 0.640733 on 4 procs for 100 steps with 32000 atoms
|
||||
Loop time of 0.635957 on 4 procs for 100 steps with 32000 atoms
|
||||
|
||||
Performance: 67422.779 tau/day, 156.071 timesteps/s
|
||||
99.7% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
Performance: 67929.172 tau/day, 157.243 timesteps/s
|
||||
99.9% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
|
||||
MPI task timing breakdown:
|
||||
Section | min time | avg time | max time |%varavg| %total
|
||||
---------------------------------------------------------------
|
||||
Pair | 0.49487 | 0.51733 | 0.5322 | 1.9 | 80.74
|
||||
Neigh | 0.061131 | 0.063685 | 0.065433 | 0.6 | 9.94
|
||||
Comm | 0.02457 | 0.042349 | 0.069598 | 8.1 | 6.61
|
||||
Output | 5.9843e-05 | 6.3181e-05 | 6.6996e-05 | 0.0 | 0.01
|
||||
Modify | 0.012961 | 0.013863 | 0.014491 | 0.5 | 2.16
|
||||
Other | | 0.003448 | | | 0.54
|
||||
Pair | 0.51335 | 0.51822 | 0.52569 | 0.7 | 81.49
|
||||
Neigh | 0.063695 | 0.064309 | 0.065397 | 0.3 | 10.11
|
||||
Comm | 0.027525 | 0.03629 | 0.041959 | 3.1 | 5.71
|
||||
Output | 6.3896e-05 | 6.6698e-05 | 7.081e-05 | 0.0 | 0.01
|
||||
Modify | 0.012472 | 0.01254 | 0.012618 | 0.1 | 1.97
|
||||
Other | | 0.004529 | | | 0.71
|
||||
|
||||
Nlocal: 8000 ave 8037 max 7964 min
|
||||
Histogram: 2 0 0 0 0 0 0 0 1 1
|
||||
@ -1,4 +1,4 @@
|
||||
LAMMPS (15 Feb 2016)
|
||||
LAMMPS (6 Oct 2016)
|
||||
# 3d Lennard-Jones melt
|
||||
|
||||
variable x index 1
|
||||
@ -50,20 +50,20 @@ Memory usage per processor = 8.13678 Mbytes
|
||||
Step Temp E_pair E_mol TotEng Press
|
||||
0 1.44 -6.7733681 0 -4.6133849 -5.0196788
|
||||
100 0.75841891 -5.759957 0 -4.6223375 0.20008866
|
||||
Loop time of 2.57914 on 4 procs for 100 steps with 128000 atoms
|
||||
Loop time of 2.55762 on 4 procs for 100 steps with 128000 atoms
|
||||
|
||||
Performance: 16749.768 tau/day, 38.773 timesteps/s
|
||||
Performance: 16890.677 tau/day, 39.099 timesteps/s
|
||||
99.8% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
|
||||
MPI task timing breakdown:
|
||||
Section | min time | avg time | max time |%varavg| %total
|
||||
---------------------------------------------------------------
|
||||
Pair | 2.042 | 2.1092 | 2.1668 | 3.1 | 81.78
|
||||
Neigh | 0.23982 | 0.24551 | 0.25233 | 1.0 | 9.52
|
||||
Comm | 0.067088 | 0.13887 | 0.22681 | 15.7 | 5.38
|
||||
Output | 0.00013185 | 0.00021666 | 0.00027108 | 0.4 | 0.01
|
||||
Modify | 0.060348 | 0.071269 | 0.077063 | 2.5 | 2.76
|
||||
Other | | 0.01403 | | | 0.54
|
||||
Pair | 2.0583 | 2.0988 | 2.1594 | 2.6 | 82.06
|
||||
Neigh | 0.24411 | 0.24838 | 0.25585 | 0.9 | 9.71
|
||||
Comm | 0.066397 | 0.13872 | 0.1863 | 11.9 | 5.42
|
||||
Output | 0.00012994 | 0.00021023 | 0.00025702 | 0.3 | 0.01
|
||||
Modify | 0.055533 | 0.058343 | 0.061791 | 1.2 | 2.28
|
||||
Other | | 0.0132 | | | 0.52
|
||||
|
||||
Nlocal: 32000 ave 32060 max 31939 min
|
||||
Histogram: 1 0 1 0 0 0 0 1 0 1
|
||||
@ -1,4 +1,4 @@
|
||||
LAMMPS (15 Feb 2016)
|
||||
LAMMPS (6 Oct 2016)
|
||||
# Rhodopsin model
|
||||
|
||||
units real
|
||||
@ -56,6 +56,7 @@ timestep 2.0
|
||||
|
||||
run 100
|
||||
PPPM initialization ...
|
||||
WARNING: Using 12-bit tables for long-range coulomb (../kspace.cpp:316)
|
||||
G vector (1/distance) = 0.248835
|
||||
grid = 25 32 32
|
||||
stencil order = 5
|
||||
@ -70,41 +71,41 @@ Neighbor list info ...
|
||||
master list distance cutoff = 12
|
||||
ghost atom cutoff = 12
|
||||
binsize = 6 -> bins = 10 13 13
|
||||
Memory usage per processor = 91.7487 Mbytes
|
||||
Memory usage per processor = 93.2721 Mbytes
|
||||
---------------- Step 0 ----- CPU = 0.0000 (sec) ----------------
|
||||
TotEng = -25356.2064 KinEng = 21444.8313 Temp = 299.0397
|
||||
PotEng = -46801.0377 E_bond = 2537.9940 E_angle = 10921.3742
|
||||
E_dihed = 5211.7865 E_impro = 213.5116 E_vdwl = -2307.8634
|
||||
E_coul = 207025.8927 E_long = -270403.7333 Press = -142.6035
|
||||
E_coul = 207025.8927 E_long = -270403.7333 Press = -149.3301
|
||||
Volume = 307995.0335
|
||||
---------------- Step 50 ----- CPU = 17.6362 (sec) ----------------
|
||||
TotEng = -25330.0828 KinEng = 21501.0029 Temp = 299.8230
|
||||
PotEng = -46831.0857 E_bond = 2471.7004 E_angle = 10836.4975
|
||||
E_dihed = 5239.6299 E_impro = 227.1218 E_vdwl = -1993.2754
|
||||
E_coul = 206797.6331 E_long = -270410.3930 Press = 237.6701
|
||||
Volume = 308031.5639
|
||||
---------------- Step 100 ----- CPU = 35.9089 (sec) ----------------
|
||||
TotEng = -25290.7593 KinEng = 21592.0117 Temp = 301.0920
|
||||
PotEng = -46882.7709 E_bond = 2567.9807 E_angle = 10781.9408
|
||||
E_dihed = 5198.7432 E_impro = 216.7834 E_vdwl = -1902.4783
|
||||
E_coul = 206659.2326 E_long = -270404.9733 Press = 6.9960
|
||||
Volume = 308133.9888
|
||||
Loop time of 35.9089 on 1 procs for 100 steps with 32000 atoms
|
||||
---------------- Step 50 ----- CPU = 17.2007 (sec) ----------------
|
||||
TotEng = -25330.0321 KinEng = 21501.0036 Temp = 299.8230
|
||||
PotEng = -46831.0357 E_bond = 2471.7033 E_angle = 10836.5108
|
||||
E_dihed = 5239.6316 E_impro = 227.1219 E_vdwl = -1993.2763
|
||||
E_coul = 206797.6655 E_long = -270410.3927 Press = 237.6866
|
||||
Volume = 308031.5640
|
||||
---------------- Step 100 ----- CPU = 35.0315 (sec) ----------------
|
||||
TotEng = -25290.7387 KinEng = 21591.9096 Temp = 301.0906
|
||||
PotEng = -46882.6484 E_bond = 2567.9789 E_angle = 10781.9556
|
||||
E_dihed = 5198.7493 E_impro = 216.7863 E_vdwl = -1902.6458
|
||||
E_coul = 206659.5006 E_long = -270404.9733 Press = 6.7898
|
||||
Volume = 308133.9933
|
||||
Loop time of 35.0316 on 1 procs for 100 steps with 32000 atoms
|
||||
|
||||
Performance: 0.481 ns/day, 49.874 hours/ns, 2.785 timesteps/s
|
||||
Performance: 0.493 ns/day, 48.655 hours/ns, 2.855 timesteps/s
|
||||
99.9% CPU use with 1 MPI tasks x no OpenMP threads
|
||||
|
||||
MPI task timing breakdown:
|
||||
Section | min time | avg time | max time |%varavg| %total
|
||||
---------------------------------------------------------------
|
||||
Pair | 25.731 | 25.731 | 25.731 | 0.0 | 71.66
|
||||
Bond | 1.2771 | 1.2771 | 1.2771 | 0.0 | 3.56
|
||||
Kspace | 3.2094 | 3.2094 | 3.2094 | 0.0 | 8.94
|
||||
Neigh | 4.4538 | 4.4538 | 4.4538 | 0.0 | 12.40
|
||||
Comm | 0.068507 | 0.068507 | 0.068507 | 0.0 | 0.19
|
||||
Output | 0.00025916 | 0.00025916 | 0.00025916 | 0.0 | 0.00
|
||||
Modify | 1.1417 | 1.1417 | 1.1417 | 0.0 | 3.18
|
||||
Other | | 0.027 | | | 0.08
|
||||
Pair | 25.021 | 25.021 | 25.021 | 0.0 | 71.42
|
||||
Bond | 1.2834 | 1.2834 | 1.2834 | 0.0 | 3.66
|
||||
Kspace | 3.2116 | 3.2116 | 3.2116 | 0.0 | 9.17
|
||||
Neigh | 4.2767 | 4.2767 | 4.2767 | 0.0 | 12.21
|
||||
Comm | 0.069283 | 0.069283 | 0.069283 | 0.0 | 0.20
|
||||
Output | 0.00028205 | 0.00028205 | 0.00028205 | 0.0 | 0.00
|
||||
Modify | 1.14 | 1.14 | 1.14 | 0.0 | 3.25
|
||||
Other | | 0.02938 | | | 0.08
|
||||
|
||||
Nlocal: 32000 ave 32000 max 32000 min
|
||||
Histogram: 1 0 0 0 0 0 0 0 0 0
|
||||
@ -113,9 +114,9 @@ Histogram: 1 0 0 0 0 0 0 0 0 0
|
||||
Neighs: 1.20281e+07 ave 1.20281e+07 max 1.20281e+07 min
|
||||
Histogram: 1 0 0 0 0 0 0 0 0 0
|
||||
|
||||
Total # of neighbors = 12028107
|
||||
Total # of neighbors = 12028098
|
||||
Ave neighs/atom = 375.878
|
||||
Ave special neighs/atom = 7.43187
|
||||
Neighbor list builds = 11
|
||||
Dangerous builds = 0
|
||||
Total wall time: 0:00:37
|
||||
Total wall time: 0:00:36
|
||||
@ -1,4 +1,4 @@
|
||||
LAMMPS (15 Feb 2016)
|
||||
LAMMPS (6 Oct 2016)
|
||||
# Rhodopsin model
|
||||
|
||||
units real
|
||||
@ -56,6 +56,7 @@ timestep 2.0
|
||||
|
||||
run 100
|
||||
PPPM initialization ...
|
||||
WARNING: Using 12-bit tables for long-range coulomb (../kspace.cpp:316)
|
||||
G vector (1/distance) = 0.248835
|
||||
grid = 25 32 32
|
||||
stencil order = 5
|
||||
@ -70,52 +71,52 @@ Neighbor list info ...
|
||||
master list distance cutoff = 12
|
||||
ghost atom cutoff = 12
|
||||
binsize = 6 -> bins = 10 13 13
|
||||
Memory usage per processor = 36.629 Mbytes
|
||||
Memory usage per processor = 37.3604 Mbytes
|
||||
---------------- Step 0 ----- CPU = 0.0000 (sec) ----------------
|
||||
TotEng = -25356.2064 KinEng = 21444.8313 Temp = 299.0397
|
||||
PotEng = -46801.0377 E_bond = 2537.9940 E_angle = 10921.3742
|
||||
E_dihed = 5211.7865 E_impro = 213.5116 E_vdwl = -2307.8634
|
||||
E_coul = 207025.8927 E_long = -270403.7333 Press = -142.6035
|
||||
E_coul = 207025.8927 E_long = -270403.7333 Press = -149.3301
|
||||
Volume = 307995.0335
|
||||
---------------- Step 50 ----- CPU = 4.7461 (sec) ----------------
|
||||
TotEng = -25330.0828 KinEng = 21501.0029 Temp = 299.8230
|
||||
PotEng = -46831.0857 E_bond = 2471.7004 E_angle = 10836.4975
|
||||
E_dihed = 5239.6299 E_impro = 227.1218 E_vdwl = -1993.2754
|
||||
E_coul = 206797.6331 E_long = -270410.3930 Press = 237.6701
|
||||
Volume = 308031.5639
|
||||
---------------- Step 100 ----- CPU = 9.6332 (sec) ----------------
|
||||
TotEng = -25290.7591 KinEng = 21592.0117 Temp = 301.0920
|
||||
PotEng = -46882.7708 E_bond = 2567.9807 E_angle = 10781.9408
|
||||
E_dihed = 5198.7432 E_impro = 216.7834 E_vdwl = -1902.4783
|
||||
E_coul = 206659.2327 E_long = -270404.9733 Press = 6.9960
|
||||
Volume = 308133.9888
|
||||
Loop time of 9.63322 on 4 procs for 100 steps with 32000 atoms
|
||||
---------------- Step 50 ----- CPU = 4.6056 (sec) ----------------
|
||||
TotEng = -25330.0321 KinEng = 21501.0036 Temp = 299.8230
|
||||
PotEng = -46831.0357 E_bond = 2471.7033 E_angle = 10836.5108
|
||||
E_dihed = 5239.6316 E_impro = 227.1219 E_vdwl = -1993.2763
|
||||
E_coul = 206797.6655 E_long = -270410.3927 Press = 237.6866
|
||||
Volume = 308031.5640
|
||||
---------------- Step 100 ----- CPU = 9.3910 (sec) ----------------
|
||||
TotEng = -25290.7386 KinEng = 21591.9096 Temp = 301.0906
|
||||
PotEng = -46882.6482 E_bond = 2567.9789 E_angle = 10781.9556
|
||||
E_dihed = 5198.7493 E_impro = 216.7863 E_vdwl = -1902.6458
|
||||
E_coul = 206659.5007 E_long = -270404.9733 Press = 6.7898
|
||||
Volume = 308133.9933
|
||||
Loop time of 9.39107 on 4 procs for 100 steps with 32000 atoms
|
||||
|
||||
Performance: 1.794 ns/day, 13.379 hours/ns, 10.381 timesteps/s
|
||||
99.9% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
Performance: 1.840 ns/day, 13.043 hours/ns, 10.648 timesteps/s
|
||||
99.8% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
|
||||
MPI task timing breakdown:
|
||||
Section | min time | avg time | max time |%varavg| %total
|
||||
---------------------------------------------------------------
|
||||
Pair | 6.4364 | 6.5993 | 6.7208 | 4.7 | 68.51
|
||||
Bond | 0.30755 | 0.32435 | 0.35704 | 3.4 | 3.37
|
||||
Kspace | 0.92248 | 1.0782 | 1.2597 | 13.0 | 11.19
|
||||
Neigh | 1.1669 | 1.1672 | 1.1675 | 0.0 | 12.12
|
||||
Comm | 0.094674 | 0.098065 | 0.10543 | 1.4 | 1.02
|
||||
Output | 0.00015521 | 0.00016224 | 0.00018215 | 0.1 | 0.00
|
||||
Modify | 0.32982 | 0.34654 | 0.35365 | 1.6 | 3.60
|
||||
Other | | 0.01943 | | | 0.20
|
||||
Pair | 6.2189 | 6.3266 | 6.6072 | 6.5 | 67.37
|
||||
Bond | 0.30793 | 0.32122 | 0.3414 | 2.4 | 3.42
|
||||
Kspace | 0.87994 | 1.1644 | 1.2855 | 15.3 | 12.40
|
||||
Neigh | 1.1358 | 1.136 | 1.1362 | 0.0 | 12.10
|
||||
Comm | 0.08292 | 0.084935 | 0.087077 | 0.5 | 0.90
|
||||
Output | 0.00015712 | 0.00016558 | 0.00018501 | 0.1 | 0.00
|
||||
Modify | 0.33717 | 0.34246 | 0.34794 | 0.7 | 3.65
|
||||
Other | | 0.01526 | | | 0.16
|
||||
|
||||
Nlocal: 8000 ave 8143 max 7933 min
|
||||
Histogram: 1 2 0 0 0 0 0 0 0 1
|
||||
Nghost: 22733.5 ave 22769 max 22693 min
|
||||
Histogram: 1 0 0 0 0 2 0 0 0 1
|
||||
Neighs: 3.00703e+06 ave 3.0975e+06 max 2.96493e+06 min
|
||||
Neighs: 3.00702e+06 ave 3.0975e+06 max 2.96492e+06 min
|
||||
Histogram: 1 2 0 0 0 0 0 0 0 1
|
||||
|
||||
Total # of neighbors = 12028107
|
||||
Total # of neighbors = 12028098
|
||||
Ave neighs/atom = 375.878
|
||||
Ave special neighs/atom = 7.43187
|
||||
Neighbor list builds = 11
|
||||
Dangerous builds = 0
|
||||
Total wall time: 0:00:10
|
||||
Total wall time: 0:00:09
|
||||
@ -1,4 +1,4 @@
|
||||
LAMMPS (15 Feb 2016)
|
||||
LAMMPS (6 Oct 2016)
|
||||
# Rhodopsin model
|
||||
|
||||
variable x index 1
|
||||
@ -77,6 +77,7 @@ timestep 2.0
|
||||
|
||||
run 100
|
||||
PPPM initialization ...
|
||||
WARNING: Using 12-bit tables for long-range coulomb (../kspace.cpp:316)
|
||||
G vector (1/distance) = 0.248593
|
||||
grid = 48 60 36
|
||||
stencil order = 5
|
||||
@ -91,52 +92,52 @@ Neighbor list info ...
|
||||
master list distance cutoff = 12
|
||||
ghost atom cutoff = 12
|
||||
binsize = 6 -> bins = 19 26 13
|
||||
Memory usage per processor = 95.5339 Mbytes
|
||||
Memory usage per processor = 96.9597 Mbytes
|
||||
---------------- Step 0 ----- CPU = 0.0000 (sec) ----------------
|
||||
TotEng = -101425.4887 KinEng = 85779.3251 Temp = 299.0304
|
||||
PotEng = -187204.8138 E_bond = 10151.9760 E_angle = 43685.4968
|
||||
E_dihed = 20847.1460 E_impro = 854.0463 E_vdwl = -9231.4537
|
||||
E_coul = 827053.5824 E_long = -1080565.6077 Press = -142.3092
|
||||
E_coul = 827053.5824 E_long = -1080565.6077 Press = -149.0358
|
||||
Volume = 1231980.1340
|
||||
---------------- Step 50 ----- CPU = 18.7806 (sec) ----------------
|
||||
TotEng = -101320.2677 KinEng = 86003.4837 Temp = 299.8118
|
||||
PotEng = -187323.7514 E_bond = 9887.1072 E_angle = 43346.7922
|
||||
E_dihed = 20958.7032 E_impro = 908.4715 E_vdwl = -7973.4457
|
||||
E_coul = 826141.3831 E_long = -1080592.7629 Press = 238.0161
|
||||
Volume = 1232126.1855
|
||||
---------------- Step 100 ----- CPU = 38.3684 (sec) ----------------
|
||||
TotEng = -101158.1849 KinEng = 86355.6149 Temp = 301.0393
|
||||
PotEng = -187513.7998 E_bond = 10272.0693 E_angle = 43128.6454
|
||||
E_dihed = 20793.9759 E_impro = 867.0826 E_vdwl = -7586.7186
|
||||
E_coul = 825583.7122 E_long = -1080572.5667 Press = 15.2151
|
||||
Volume = 1232535.8423
|
||||
Loop time of 38.3684 on 4 procs for 100 steps with 128000 atoms
|
||||
---------------- Step 50 ----- CPU = 18.1689 (sec) ----------------
|
||||
TotEng = -101320.0211 KinEng = 86003.4933 Temp = 299.8118
|
||||
PotEng = -187323.5144 E_bond = 9887.1189 E_angle = 43346.8448
|
||||
E_dihed = 20958.7108 E_impro = 908.4721 E_vdwl = -7973.4486
|
||||
E_coul = 826141.5493 E_long = -1080592.7617 Press = 238.0404
|
||||
Volume = 1232126.1814
|
||||
---------------- Step 100 ----- CPU = 37.2027 (sec) ----------------
|
||||
TotEng = -101157.9546 KinEng = 86355.7413 Temp = 301.0398
|
||||
PotEng = -187513.6959 E_bond = 10272.0456 E_angle = 43128.7018
|
||||
E_dihed = 20794.0107 E_impro = 867.0928 E_vdwl = -7587.2409
|
||||
E_coul = 825584.2416 E_long = -1080572.5474 Press = 15.1729
|
||||
Volume = 1232535.8440
|
||||
Loop time of 37.2028 on 4 procs for 100 steps with 128000 atoms
|
||||
|
||||
Performance: 0.450 ns/day, 53.289 hours/ns, 2.606 timesteps/s
|
||||
Performance: 0.464 ns/day, 51.671 hours/ns, 2.688 timesteps/s
|
||||
99.9% CPU use with 4 MPI tasks x no OpenMP threads
|
||||
|
||||
MPI task timing breakdown:
|
||||
Section | min time | avg time | max time |%varavg| %total
|
||||
---------------------------------------------------------------
|
||||
Pair | 26.205 | 26.538 | 26.911 | 5.0 | 69.17
|
||||
Bond | 1.298 | 1.3125 | 1.3277 | 1.0 | 3.42
|
||||
Kspace | 3.7099 | 4.0992 | 4.4422 | 13.3 | 10.68
|
||||
Neigh | 4.6137 | 4.6144 | 4.615 | 0.0 | 12.03
|
||||
Comm | 0.21398 | 0.21992 | 0.22886 | 1.2 | 0.57
|
||||
Output | 0.00030518 | 0.00031543 | 0.00033307 | 0.1 | 0.00
|
||||
Modify | 1.5066 | 1.5232 | 1.5388 | 1.0 | 3.97
|
||||
Other | | 0.06051 | | | 0.16
|
||||
Pair | 25.431 | 25.738 | 25.984 | 4.0 | 69.18
|
||||
Bond | 1.2966 | 1.3131 | 1.3226 | 0.9 | 3.53
|
||||
Kspace | 3.7563 | 4.0123 | 4.3127 | 10.0 | 10.79
|
||||
Neigh | 4.3778 | 4.378 | 4.3782 | 0.0 | 11.77
|
||||
Comm | 0.1903 | 0.19549 | 0.20485 | 1.3 | 0.53
|
||||
Output | 0.00031805 | 0.00037521 | 0.00039601 | 0.2 | 0.00
|
||||
Modify | 1.4861 | 1.5051 | 1.5122 | 0.9 | 4.05
|
||||
Other | | 0.05992 | | | 0.16
|
||||
|
||||
Nlocal: 32000 ave 32000 max 32000 min
|
||||
Histogram: 4 0 0 0 0 0 0 0 0 0
|
||||
Nghost: 47957 ave 47957 max 47957 min
|
||||
Histogram: 4 0 0 0 0 0 0 0 0 0
|
||||
Neighs: 1.20281e+07 ave 1.20572e+07 max 1.1999e+07 min
|
||||
Neighs: 1.20281e+07 ave 1.20572e+07 max 1.19991e+07 min
|
||||
Histogram: 2 0 0 0 0 0 0 0 0 2
|
||||
|
||||
Total # of neighbors = 48112472
|
||||
Total # of neighbors = 48112540
|
||||
Ave neighs/atom = 375.879
|
||||
Ave special neighs/atom = 7.43187
|
||||
Neighbor list builds = 11
|
||||
Dangerous builds = 0
|
||||
Total wall time: 0:00:39
|
||||
Total wall time: 0:00:38
|
||||
4
doc/.gitignore
vendored
@ -1 +1,5 @@
|
||||
/html
|
||||
/LAMMPS.epub
|
||||
/LAMMPS.mobi
|
||||
/Manual.pdf
|
||||
/Developer.pdf
|
||||
|
||||
31
doc/Makefile
@ -8,19 +8,21 @@ VENV = $(BUILDDIR)/docenv
|
||||
TXT2RST = $(VENV)/bin/txt2rst
|
||||
|
||||
PYTHON = $(shell which python3)
|
||||
HAS_PYTHON3 = NO
|
||||
HAS_VIRTUALENV = NO
|
||||
|
||||
ifeq ($(shell which python3 >/dev/null 2>&1; echo $$?), 1)
|
||||
$(error Python3 was not found! Please check README.md for further instructions)
|
||||
ifeq ($(shell which python3 >/dev/null 2>&1; echo $$?), 0)
|
||||
HAS_PYTHON3 = YES
|
||||
endif
|
||||
|
||||
ifeq ($(shell which virtualenv >/dev/null 2>&1; echo $$?), 1)
|
||||
$(error virtualenv was not found! Please check README.md for further instructions)
|
||||
ifeq ($(shell which virtualenv >/dev/null 2>&1; echo $$?), 0)
|
||||
HAS_VIRTUALENV = YES
|
||||
endif
|
||||
|
||||
SOURCES=$(wildcard src/*.txt)
|
||||
OBJECTS=$(SOURCES:src/%.txt=$(RSTDIR)/%.rst)
|
||||
|
||||
.PHONY: help clean-all clean html pdf old venv
|
||||
.PHONY: help clean-all clean epub html pdf old venv
|
||||
|
||||
# ------------------------------------------
|
||||
|
||||
@ -30,6 +32,7 @@ help:
|
||||
@echo " pdf create Manual.pdf and Developer.pdf in this dir"
|
||||
@echo " old create old-style HTML doc pages in old dir"
|
||||
@echo " fetch fetch HTML and PDF files from LAMMPS web site"
|
||||
@echo " epub create ePUB format manual for e-book readers"
|
||||
@echo " clean remove all intermediate RST files"
|
||||
@echo " clean-all reset the entire build environment"
|
||||
@echo " txt2html build txt2html tool"
|
||||
@ -40,7 +43,7 @@ clean-all:
|
||||
rm -rf $(BUILDDIR)/* utils/txt2html/txt2html.exe
|
||||
|
||||
clean:
|
||||
rm -rf $(RSTDIR)
|
||||
rm -rf $(RSTDIR) html
|
||||
|
||||
html: $(OBJECTS)
|
||||
@(\
|
||||
@ -61,6 +64,20 @@ html: $(OBJECTS)
|
||||
@rm -rf html/USER/*/*.[sg]*
|
||||
@echo "Build finished. The HTML pages are in doc/html."
|
||||
|
||||
epub: $(OBJECTS)
|
||||
@mkdir -p epub
|
||||
@rm -f LAMMPS.epub
|
||||
@cp src/JPG/lammps-logo.png epub/
|
||||
@(\
|
||||
. $(VENV)/bin/activate ;\
|
||||
cp -r src/* $(RSTDIR)/ ;\
|
||||
sphinx-build -j 8 -b epub -c utils/sphinx-config -d $(BUILDDIR)/doctrees $(RSTDIR) epub ;\
|
||||
deactivate ;\
|
||||
)
|
||||
@mv epub/LAMMPS.epub .
|
||||
@rm -rf epub
|
||||
@echo "Build finished. The ePUB manual file is created."
|
||||
|
||||
pdf: utils/txt2html/txt2html.exe
|
||||
@(\
|
||||
cd src; \
|
||||
@ -109,6 +126,8 @@ $(RSTDIR)/%.rst : src/%.txt $(TXT2RST)
|
||||
)
|
||||
|
||||
$(VENV):
|
||||
@if [ "$(HAS_PYTHON3)" == "NO" ] ; then echo "Python3 was not found! Please check README.md for further instructions" 1>&2; exit 1; fi
|
||||
@if [ "$(HAS_VIRTUALENV)" == "NO" ] ; then echo "virtualenv was not found! Please check README.md for further instructions" 1>&2; exit 1; fi
|
||||
@( \
|
||||
virtualenv -p $(PYTHON) $(VENV); \
|
||||
. $(VENV)/bin/activate; \
|
||||
|
||||
21
doc/README
@ -1,13 +1,14 @@
|
||||
LAMMPS Documentation
|
||||
|
||||
Depending on how you obtained LAMMPS, this directory has 2 or 3
|
||||
sub-directories and optionally 2 PDF files:
|
||||
sub-directories and optionally 2 PDF files and an ePUB file:
|
||||
|
||||
src content files for LAMMPS documentation
|
||||
html HTML version of the LAMMPS manual (see html/Manual.html)
|
||||
tools tools and settings for building the documentation
|
||||
Manual.pdf large PDF version of entire manual
|
||||
Developer.pdf small PDF with info about how LAMMPS is structured
|
||||
LAMMPS.epub Manual in ePUB format
|
||||
|
||||
If you downloaded LAMMPS as a tarball from the web site, all these
|
||||
directories and files should be included.
|
||||
@ -49,6 +50,7 @@ make pdf # generate 2 PDF files (Manual.pdf,Developer.pdf)
|
||||
make old # generate old-style HTML pages in old dir via txt2html
|
||||
make fetch # fetch HTML doc pages and 2 PDF files from web site
|
||||
# as a tarball and unpack into html dir and 2 PDFs
|
||||
make epub # generate LAMMPS.epub in ePUB format using Sphinx
|
||||
make clean # remove intermediate RST files created by HTML build
|
||||
make clean-all # remove entire build folder and any cached data
|
||||
|
||||
@ -92,5 +94,22 @@ This will install virtualenv from the Python Package Index.
|
||||
|
||||
Installing prerequisites for PDF build
|
||||
|
||||
[TBA]
|
||||
|
||||
----------------
|
||||
|
||||
Installing prerequisites for epub build
|
||||
|
||||
## ePUB
|
||||
|
||||
Same as for HTML. This uses the same tools and configuration
|
||||
files as the HTML tree.
|
||||
|
||||
For converting the generated ePUB file to a mobi format file
|
||||
(for e-book readers like Kindle, that cannot read ePUB), you
|
||||
also need to have the 'ebook-convert' tool from the "calibre"
|
||||
software installed. http://calibre-ebook.com/
|
||||
You first create the ePUB file with 'make epub' and then do:
|
||||
|
||||
ebook-convert LAMMPS.epub LAMMPS.mobi
|
||||
|
||||
|
||||
BIN
doc/src/Eqs/bond_oxdna_fene.jpg
Normal file
|
After Width: | Height: | Size: 3.8 KiB |
10
doc/src/Eqs/bond_oxdna_fene.tex
Normal file
@ -0,0 +1,10 @@
|
||||
\documentclass[12pt]{article}
|
||||
\pagestyle{empty}
|
||||
|
||||
\begin{document}
|
||||
|
||||
$$
|
||||
E = - \frac{\epsilon}{2} \ln \left[ 1 - \left(\frac{r-r0}{\Delta}\right)^2\right]
|
||||
$$
|
||||
|
||||
\end{document}
|
||||
BIN
doc/src/Eqs/fix_grem.jpg
Normal file
|
After Width: | Height: | Size: 6.1 KiB |
9
doc/src/Eqs/fix_grem.tex
Normal file
@ -0,0 +1,9 @@
|
||||
\documentclass[12pt]{article}
|
||||
|
||||
\begin{document}
|
||||
|
||||
$$
|
||||
T_{eff} = \lambda + \eta (H - H_0)
|
||||
$$
|
||||
|
||||
\end{document}
|
||||
BIN
doc/src/Eqs/pair_agni.jpg
Normal file
|
After Width: | Height: | Size: 15 KiB |
|
Before Width: | Height: | Size: 1.6 KiB |
@ -1,9 +0,0 @@
|
||||
\documentclass[12pt]{article}
|
||||
\pagestyle{empty}
|
||||
\begin{document}
|
||||
|
||||
$$
|
||||
F^C = A \omega_{ij} \qquad \qquad r_{ij} < r_c
|
||||
$$
|
||||
|
||||
\end{document}
|
||||
BIN
doc/src/Eqs/pair_dpd_energy.jpg
Normal file
|
After Width: | Height: | Size: 25 KiB |
12
doc/src/Eqs/pair_dpd_energy.tex
Normal file
@ -0,0 +1,12 @@
|
||||
\documentclass[12pt]{article}
|
||||
\pagestyle{empty}
|
||||
\begin{document}
|
||||
|
||||
\begin{eqnarray*}
|
||||
du_{i}^{cond} & = & \kappa_{ij}(\frac{1}{\theta_{i}}-\frac{1}{\theta_{j}})\omega_{ij}^{2} + \alpha_{ij}\omega_{ij}\zeta_{ij}^{q}(\Delta{t})^{-1/2} \\
|
||||
du_{i}^{mech} & = & -\frac{1}{2}\gamma_{ij}\omega_{ij}^{2}(\frac{\vec{r_{ij}}}{r_{ij}}\bullet\vec{v_{ij}})^{2} -
|
||||
\frac{\sigma^{2}_{ij}}{4}(\frac{1}{m_{i}}+\frac{1}{m_{j}})\omega_{ij}^{2} -
|
||||
\frac{1}{2}\sigma_{ij}\omega_{ij}(\frac{\vec{r_{ij}}}{r_{ij}}\bullet\vec{v_{ij}})\zeta_{ij}(\Delta{t})^{-1/2} \\
|
||||
\end{eqnarray*}
|
||||
|
||||
\end{document}
|
||||
BIN
doc/src/Eqs/pair_dpd_energy_terms.jpg
Normal file
|
After Width: | Height: | Size: 8.7 KiB |
11
doc/src/Eqs/pair_dpd_energy_terms.tex
Normal file
@ -0,0 +1,11 @@
|
||||
\documentclass[12pt]{article}
|
||||
\pagestyle{empty}
|
||||
\begin{document}
|
||||
|
||||
\begin{eqnarray*}
|
||||
\alpha_{ij}^{2} & = & 2k_{B}\kappa_{ij} \\
|
||||
\sigma^{2}_{ij} & = & 2\gamma_{ij}k_{B}\Theta_{ij} \\
|
||||
\Theta_{ij}^{-1} & = & \frac{1}{2}(\frac{1}{\theta_{i}}+\frac{1}{\theta_{j}}) \\
|
||||
\end{eqnarray*}
|
||||
|
||||
\end{document}
|
||||
BIN
doc/src/Eqs/pair_tersoff_mod_c.jpg
Normal file
|
After Width: | Height: | Size: 4.1 KiB |
10
doc/src/Eqs/pair_tersoff_mod_c.tex
Normal file
@ -0,0 +1,10 @@
|
||||
\documentclass[12pt]{article}
|
||||
\pagestyle{empty}
|
||||
|
||||
\begin{document}
|
||||
|
||||
\begin{eqnarray*}
|
||||
V_{ij} & = & f_C(r_{ij}) \left[ f_R(r_{ij}) + b_{ij} f_A(r_{ij}) + c_0 \right]
|
||||
\end{eqnarray*}
|
||||
|
||||
\end{document}
|
||||
|
Before Width: | Height: | Size: 4.0 KiB After Width: | Height: | Size: 4.2 KiB |
@ -3,7 +3,7 @@
|
||||
\begin{document}
|
||||
|
||||
$$
|
||||
P = \frac{N k_B T}{V} + \frac{\sum_{i}^{N} r_i \bullet f_i}{dV}
|
||||
P = \frac{N k_B T}{V} + \frac{\sum_{i}^{N'} r_i \bullet f_i}{dV}
|
||||
$$
|
||||
|
||||
\end{document}
|
||||
|
Before Width: | Height: | Size: 4.9 KiB After Width: | Height: | Size: 5.3 KiB |
@ -4,7 +4,7 @@
|
||||
|
||||
$$
|
||||
P_{IJ} = \frac{\sum_{k}^{N} m_k v_{k_I} v_{k_J}}{V} +
|
||||
\frac{\sum_{k}^{N} r_{k_I} f_{k_J}}{V}
|
||||
\frac{\sum_{k}^{N'} r_{k_I} f_{k_J}}{V}
|
||||
$$
|
||||
|
||||
\end{document}
|
||||
|
||||
BIN
doc/src/JPG/lammps-logo.png
Normal file
|
After Width: | Height: | Size: 4.8 KiB |
BIN
doc/src/JPG/pylammps_dihedral.jpg
Normal file
|
After Width: | Height: | Size: 70 KiB |
BIN
doc/src/JPG/pylammps_mc_disordered.jpg
Normal file
|
After Width: | Height: | Size: 104 KiB |
BIN
doc/src/JPG/pylammps_mc_energies_plot.jpg
Normal file
|
After Width: | Height: | Size: 53 KiB |
BIN
doc/src/JPG/pylammps_mc_minimum.jpg
Normal file
|
After Width: | Height: | Size: 111 KiB |
BIN
doc/src/JPG/tutorial_additional_changes.png
Normal file
|
After Width: | Height: | Size: 21 KiB |
BIN
doc/src/JPG/tutorial_automated_checks.png
Normal file
|
After Width: | Height: | Size: 99 KiB |
BIN
doc/src/JPG/tutorial_automated_checks_passed.png
Normal file
|
After Width: | Height: | Size: 30 KiB |
|
Before Width: | Height: | Size: 73 KiB After Width: | Height: | Size: 16 KiB |
BIN
doc/src/JPG/tutorial_changes_others.png
Normal file
|
After Width: | Height: | Size: 19 KiB |
BIN
doc/src/JPG/tutorial_create_new_pull_request1.png
Normal file
|
After Width: | Height: | Size: 51 KiB |
BIN
doc/src/JPG/tutorial_create_new_pull_request2.png
Normal file
|
After Width: | Height: | Size: 34 KiB |
BIN
doc/src/JPG/tutorial_edits_maintainers.png
Normal file
|
After Width: | Height: | Size: 13 KiB |
|
Before Width: | Height: | Size: 33 KiB After Width: | Height: | Size: 15 KiB |
|
Before Width: | Height: | Size: 17 KiB After Width: | Height: | Size: 70 KiB |
|
Before Width: | Height: | Size: 57 KiB After Width: | Height: | Size: 25 KiB |
BIN
doc/src/JPG/tutorial_new_pull_request.png
Normal file
|
After Width: | Height: | Size: 19 KiB |
BIN
doc/src/JPG/tutorial_reverse_pull_request.png
Normal file
|
After Width: | Height: | Size: 27 KiB |
BIN
doc/src/JPG/tutorial_reverse_pull_request2.png
Normal file
|
After Width: | Height: | Size: 78 KiB |
BIN
doc/src/JPG/tutorial_reverse_pull_request3.png
Normal file
|
After Width: | Height: | Size: 77 KiB |
BIN
doc/src/JPG/tutorial_reverse_pull_request4.png
Normal file
|
After Width: | Height: | Size: 104 KiB |
BIN
doc/src/JPG/tutorial_reverse_pull_request5.png
Normal file
|
After Width: | Height: | Size: 37 KiB |
BIN
doc/src/JPG/tutorial_reverse_pull_request6.png
Normal file
|
After Width: | Height: | Size: 6.2 KiB |
BIN
doc/src/JPG/tutorial_reverse_pull_request7.png
Normal file
|
After Width: | Height: | Size: 25 KiB |
BIN
doc/src/JPG/tutorial_steve_assignee.png
Normal file
|
After Width: | Height: | Size: 45 KiB |
@ -1,7 +1,7 @@
|
||||
<!-- HTML_ONLY -->
|
||||
<HEAD>
|
||||
<TITLE>LAMMPS Users Manual</TITLE>
|
||||
<META NAME="docnumber" CONTENT="6 Oct 2016 version">
|
||||
<META NAME="docnumber" CONTENT="21 Feb 2017 version">
|
||||
<META NAME="author" CONTENT="http://lammps.sandia.gov - Sandia National Laboratories">
|
||||
<META NAME="copyright" CONTENT="Copyright (2003) Sandia Corporation. This software and manual is distributed under the GNU General Public License.">
|
||||
</HEAD>
|
||||
@ -21,7 +21,7 @@
|
||||
<H1></H1>
|
||||
|
||||
LAMMPS Documentation :c,h3
|
||||
6 Oct 2016 version :c,h4
|
||||
21 Feb 2017 version :c,h4
|
||||
|
||||
Version info: :h4
|
||||
|
||||
|
||||
BIN
doc/src/PDF/USER-CGDNA-overview.pdf
Normal file
@ -106,7 +106,7 @@ the $. Thus $\{myTemp\} and $x refer to variable names "myTemp" and
|
||||
"x".
|
||||
|
||||
How the variable is converted to a text string depends on what style
|
||||
of variable it is; see the "variable"_variable doc page for details.
|
||||
of variable it is; see the "variable"_variable.html doc page for details.
|
||||
It can be a variable that stores multiple text strings, and return one
|
||||
of them. The returned text string can be multiple "words" (space
|
||||
separated) which will then be interpreted as multiple arguments in the
|
||||
@ -282,78 +282,135 @@ the "minimize"_minimize.html command. A parallel tempering
|
||||
3.4 Commands listed by category :link(cmd_4),h4
|
||||
|
||||
This section lists all LAMMPS commands, grouped by category. The
|
||||
"next section"_#cmd_5 lists the same commands alphabetically. Note
|
||||
that some style options for some commands are part of specific LAMMPS
|
||||
packages, which means they cannot be used unless the package was
|
||||
included when LAMMPS was built. Not all packages are included in a
|
||||
default LAMMPS build. These dependencies are listed as Restrictions
|
||||
in the command's documentation.
|
||||
"next section"_#cmd_5 lists the same commands alphabetically. The
|
||||
next section also includes (long) lists of style options for entries
|
||||
that appear in the following categories as a single command (fix,
|
||||
compute, pair, etc). Commands that are added by user packages are not
|
||||
included in these categories, but they are in the next section.
|
||||
|
||||
Initialization:
|
||||
|
||||
"atom_modify"_atom_modify.html, "atom_style"_atom_style.html,
|
||||
"boundary"_boundary.html, "dimension"_dimension.html,
|
||||
"newton"_newton.html, "processors"_processors.html, "units"_units.html
|
||||
"newton"_newton.html,
|
||||
"package"_package.html,
|
||||
"processors"_processors.html,
|
||||
"suffix"_suffix.html,
|
||||
"units"_units.html
|
||||
|
||||
Atom definition:
|
||||
Setup simulation box:
|
||||
|
||||
"create_atoms"_create_atoms.html, "create_box"_create_box.html,
|
||||
"lattice"_lattice.html, "read_data"_read_data.html,
|
||||
"read_dump"_read_dump.html, "read_restart"_read_restart.html,
|
||||
"region"_region.html, "replicate"_replicate.html
|
||||
"boundary"_boundary.html,
|
||||
"box"_box.html,
|
||||
"change_box"_change_box.html,
|
||||
"create_box"_create_box.html,
|
||||
"dimension"_dimension.html,
|
||||
"lattice"_lattice.html,
|
||||
"region"_region.html
|
||||
|
||||
Setup atoms:
|
||||
|
||||
"atom_modify"_atom_modify.html,
|
||||
"atom_style"_atom_style.html,
|
||||
"balance"_balance.html,
|
||||
"create_atoms"_create_atoms.html,
|
||||
"create_bonds"_create_bonds.html,
|
||||
"delete_atoms"_delete_atoms.html,
|
||||
"delete_bonds"_delete_bonds.html,
|
||||
"displace_atoms"_displace_atoms.html,
|
||||
"group"_group.html,
|
||||
"mass"_mass.html,
|
||||
"molecule"_molecule.html,
|
||||
"read_data"_read_data.html,
|
||||
"read_dump"_read_dump.html,
|
||||
"read_restart"_read_restart.html,
|
||||
"replicate"_replicate.html,
|
||||
"set"_set.html,
|
||||
"velocity"_velocity.html
|
||||
|
||||
Force fields:
|
||||
|
||||
"angle_coeff"_angle_coeff.html, "angle_style"_angle_style.html,
|
||||
"bond_coeff"_bond_coeff.html, "bond_style"_bond_style.html,
|
||||
"dielectric"_dielectric.html, "dihedral_coeff"_dihedral_coeff.html,
|
||||
"angle_coeff"_angle_coeff.html,
|
||||
"angle_style"_angle_style.html,
|
||||
"bond_coeff"_bond_coeff.html,
|
||||
"bond_style"_bond_style.html,
|
||||
"bond_write"_bond_write.html,
|
||||
"dielectric"_dielectric.html,
|
||||
"dihedral_coeff"_dihedral_coeff.html,
|
||||
"dihedral_style"_dihedral_style.html,
|
||||
"improper_coeff"_improper_coeff.html,
|
||||
"improper_style"_improper_style.html,
|
||||
"kspace_modify"_kspace_modify.html, "kspace_style"_kspace_style.html,
|
||||
"pair_coeff"_pair_coeff.html, "pair_modify"_pair_modify.html,
|
||||
"pair_style"_pair_style.html, "pair_write"_pair_write.html,
|
||||
"kspace_modify"_kspace_modify.html,
|
||||
"kspace_style"_kspace_style.html,
|
||||
"pair_coeff"_pair_coeff.html,
|
||||
"pair_modify"_pair_modify.html,
|
||||
"pair_style"_pair_style.html,
|
||||
"pair_write"_pair_write.html,
|
||||
"special_bonds"_special_bonds.html
|
||||
|
||||
Settings:
|
||||
|
||||
"comm_style"_comm_style.html, "group"_group.html, "mass"_mass.html,
|
||||
"min_modify"_min_modify.html, "min_style"_min_style.html,
|
||||
"neigh_modify"_neigh_modify.html, "neighbor"_neighbor.html,
|
||||
"reset_timestep"_reset_timestep.html, "run_style"_run_style.html,
|
||||
"set"_set.html, "timestep"_timestep.html, "velocity"_velocity.html
|
||||
"comm_modify"_comm_modify.html,
|
||||
"comm_style"_comm_style.html,
|
||||
"info"_info.html,
|
||||
"min_modify"_min_modify.html,
|
||||
"min_style"_min_style.html,
|
||||
"neigh_modify"_neigh_modify.html,
|
||||
"neighbor"_neighbor.html,
|
||||
"partition"_partition.html,
|
||||
"reset_timestep"_reset_timestep.html,
|
||||
"run_style"_run_style.html,
|
||||
"timer"_timer.html,
|
||||
"timestep"_timestep.html
|
||||
|
||||
Fixes:
|
||||
Operations within timestepping (fixes) and diagnositics (computes):
|
||||
|
||||
"fix"_fix.html, "fix_modify"_fix_modify.html, "unfix"_unfix.html
|
||||
|
||||
Computes:
|
||||
|
||||
"compute"_compute.html, "compute_modify"_compute_modify.html,
|
||||
"uncompute"_uncompute.html
|
||||
"compute"_compute.html,
|
||||
"compute_modify"_compute_modify.html,
|
||||
"fix"_fix.html,
|
||||
"fix_modify"_fix_modify.html,
|
||||
"uncompute"_uncompute.html,
|
||||
"unfix"_unfix.html
|
||||
|
||||
Output:
|
||||
|
||||
"dump"_dump.html, "dump image"_dump_image.html,
|
||||
"dump_modify"_dump_modify.html, "dump movie"_dump_image.html,
|
||||
"restart"_restart.html, "thermo"_thermo.html,
|
||||
"thermo_modify"_thermo_modify.html, "thermo_style"_thermo_style.html,
|
||||
"undump"_undump.html, "write_data"_write_data.html,
|
||||
"write_dump"_write_dump.html, "write_restart"_write_restart.html
|
||||
"dump image"_dump_image.html,
|
||||
"dump movie"_dump_image.html,
|
||||
"dump"_dump.html,
|
||||
"dump_modify"_dump_modify.html,
|
||||
"restart"_restart.html,
|
||||
"thermo"_thermo.html,
|
||||
"thermo_modify"_thermo_modify.html,
|
||||
"thermo_style"_thermo_style.html,
|
||||
"undump"_undump.html,
|
||||
"write_coeff"_write_coeff.html,
|
||||
"write_data"_write_data.html,
|
||||
"write_dump"_write_dump.html,
|
||||
"write_restart"_write_restart.html
|
||||
|
||||
Actions:
|
||||
|
||||
"delete_atoms"_delete_atoms.html, "delete_bonds"_delete_bonds.html,
|
||||
"displace_atoms"_displace_atoms.html, "change_box"_change_box.html,
|
||||
"minimize"_minimize.html, "neb"_neb.html "prd"_prd.html,
|
||||
"rerun"_rerun.html, "run"_run.html, "temper"_temper.html
|
||||
"minimize"_minimize.html,
|
||||
"neb"_neb.html,
|
||||
"prd"_prd.html,
|
||||
"rerun"_rerun.html,
|
||||
"run"_run.html,
|
||||
"tad"_tad.html,
|
||||
"temper"_temper.html
|
||||
|
||||
Miscellaneous:
|
||||
Input script control:
|
||||
|
||||
"clear"_clear.html, "echo"_echo.html, "if"_if.html,
|
||||
"include"_include.html, "jump"_jump.html, "label"_label.html,
|
||||
"log"_log.html, "next"_next.html, "print"_print.html,
|
||||
"shell"_shell.html, "variable"_variable.html
|
||||
"clear"_clear.html,
|
||||
"echo"_echo.html,
|
||||
"if"_if.html,
|
||||
"include"_include.html,
|
||||
"jump"_jump.html,
|
||||
"label"_label.html,
|
||||
"log"_log.html,
|
||||
"next"_next.html,
|
||||
"print"_print.html,
|
||||
"python"_python.html,
|
||||
"quit"_quit.html,
|
||||
"shell"_shell.html,
|
||||
"variable"_variable.html
|
||||
|
||||
:line
|
||||
|
||||
@ -471,8 +528,11 @@ These are additional commands in USER packages, which can be used if
|
||||
package"_Section_start.html#start_3.
|
||||
|
||||
"dump custom/vtk"_dump_custom_vtk.html,
|
||||
"dump nc"_dump_nc.html,
|
||||
"dump nc/mpiio"_dump_nc.html,
|
||||
"group2ndx"_group2ndx.html,
|
||||
"ndx2group"_group2ndx.html :tb(c=3,ea=c)
|
||||
"ndx2group"_group2ndx.html,
|
||||
"temper/grem"_temper_grem.html :tb(c=3,ea=c)
|
||||
|
||||
:line
|
||||
|
||||
@ -516,12 +576,14 @@ USER-INTEL, k = KOKKOS, o = USER-OMP, t = OPT.
|
||||
"gcmc"_fix_gcmc.html,
|
||||
"gld"_fix_gld.html,
|
||||
"gravity (o)"_fix_gravity.html,
|
||||
"halt"_fix_halt.html,
|
||||
"heat"_fix_heat.html,
|
||||
"indent"_fix_indent.html,
|
||||
"langevin (k)"_fix_langevin.html,
|
||||
"lineforce"_fix_lineforce.html,
|
||||
"momentum"_fix_momentum.html,
|
||||
"momentum (k)"_fix_momentum.html,
|
||||
"move"_fix_move.html,
|
||||
"mscg"_fix_mscg.html,
|
||||
"msst"_fix_msst.html,
|
||||
"neb"_fix_neb.html,
|
||||
"nph (ko)"_fix_nh.html,
|
||||
@ -572,10 +634,10 @@ USER-INTEL, k = KOKKOS, o = USER-OMP, t = OPT.
|
||||
"rigid/nve (o)"_fix_rigid.html,
|
||||
"rigid/nvt (o)"_fix_rigid.html,
|
||||
"rigid/small (o)"_fix_rigid.html,
|
||||
"rigid/small/nph"_fix_rigid.html,
|
||||
"rigid/small/npt"_fix_rigid.html,
|
||||
"rigid/small/nve"_fix_rigid.html,
|
||||
"rigid/small/nvt"_fix_rigid.html,
|
||||
"rigid/small/nph (o)"_fix_rigid.html,
|
||||
"rigid/small/npt (o)"_fix_rigid.html,
|
||||
"rigid/small/nve (o)"_fix_rigid.html,
|
||||
"rigid/small/nvt (o)"_fix_rigid.html,
|
||||
"setforce (k)"_fix_setforce.html,
|
||||
"shake"_fix_shake.html,
|
||||
"spring"_fix_spring.html,
|
||||
@ -618,6 +680,7 @@ package"_Section_start.html#start_3.
|
||||
"atc"_fix_atc.html,
|
||||
"ave/correlate/long"_fix_ave_correlate_long.html,
|
||||
"colvars"_fix_colvars.html,
|
||||
"dpd/energy"_fix_dpd_energy.html,
|
||||
"drude"_fix_drude.html,
|
||||
"drude/transform/direct"_fix_drude_transform.html,
|
||||
"drude/transform/reverse"_fix_drude_transform.html,
|
||||
@ -626,6 +689,7 @@ package"_Section_start.html#start_3.
|
||||
"eos/table/rx"_fix_eos_table_rx.html,
|
||||
"flow/gauss"_fix_flow_gauss.html,
|
||||
"gle"_fix_gle.html,
|
||||
"grem"_fix_grem.html,
|
||||
"imd"_fix_imd.html,
|
||||
"ipi"_fix_ipi.html,
|
||||
"langevin/drude"_fix_langevin_drude.html,
|
||||
@ -638,7 +702,10 @@ package"_Section_start.html#start_3.
|
||||
"meso"_fix_meso.html,
|
||||
"manifoldforce"_fix_manifoldforce.html,
|
||||
"meso/stationary"_fix_meso_stationary.html,
|
||||
"nve/dot"_fix_nve_dot.html,
|
||||
"nve/dotc/langevin"_fix_nve_dotc_langevin.html,
|
||||
"nve/manifold/rattle"_fix_nve_manifold_rattle.html,
|
||||
"nvk"_fix_nvk.html,
|
||||
"nvt/manifold/rattle"_fix_nvt_manifold_rattle.html,
|
||||
"nph/eff"_fix_nh_eff.html,
|
||||
"npt/eff"_fix_nh_eff.html,
|
||||
@ -704,6 +771,7 @@ KOKKOS, o = USER-OMP, t = OPT.
|
||||
"erotate/sphere"_compute_erotate_sphere.html,
|
||||
"erotate/sphere/atom"_compute_erotate_sphere_atom.html,
|
||||
"event/displace"_compute_event_displace.html,
|
||||
"global/atom"_compute_global_atom.html,
|
||||
"group/group"_compute_group_group.html,
|
||||
"gyration"_compute_gyration.html,
|
||||
"gyration/chunk"_compute_gyration_chunk.html,
|
||||
@ -825,6 +893,8 @@ KOKKOS, o = USER-OMP, t = OPT.
|
||||
"body"_pair_body.html,
|
||||
"bop"_pair_bop.html,
|
||||
"born (go)"_pair_born.html,
|
||||
"born/coul/dsf"_pair_born.html,
|
||||
"born/coul/dsf/cs"_pair_born.html,
|
||||
"born/coul/long (go)"_pair_born.html,
|
||||
"born/coul/long/cs"_pair_born.html,
|
||||
"born/coul/msm (o)"_pair_born.html,
|
||||
@ -848,10 +918,10 @@ KOKKOS, o = USER-OMP, t = OPT.
|
||||
"coul/msm"_pair_coul.html,
|
||||
"coul/streitz"_pair_coul.html,
|
||||
"coul/wolf (ko)"_pair_coul.html,
|
||||
"dpd (o)"_pair_dpd.html,
|
||||
"dpd/tstat (o)"_pair_dpd.html,
|
||||
"dpd (go)"_pair_dpd.html,
|
||||
"dpd/tstat (go)"_pair_dpd.html,
|
||||
"dsmc"_pair_dsmc.html,
|
||||
"eam (gkot)"_pair_eam.html,
|
||||
"eam (gkiot)"_pair_eam.html,
|
||||
"eam/alloy (gkot)"_pair_eam.html,
|
||||
"eam/fs (gkot)"_pair_eam.html,
|
||||
"eim (o)"_pair_eim.html,
|
||||
@ -899,7 +969,7 @@ KOKKOS, o = USER-OMP, t = OPT.
|
||||
"lubricateU/poly"_pair_lubricateU.html,
|
||||
"meam"_pair_meam.html,
|
||||
"mie/cut (o)"_pair_mie.html,
|
||||
"morse (got)"_pair_morse.html,
|
||||
"morse (gkot)"_pair_morse.html,
|
||||
"nb3b/harmonic (o)"_pair_nb3b_harmonic.html,
|
||||
"nm/cut (o)"_pair_nm.html,
|
||||
"nm/cut/coul/cut (o)"_pair_nm.html,
|
||||
@ -918,11 +988,13 @@ KOKKOS, o = USER-OMP, t = OPT.
|
||||
"table (gko)"_pair_table.html,
|
||||
"tersoff (gkio)"_pair_tersoff.html,
|
||||
"tersoff/mod (gko)"_pair_tersoff_mod.html,
|
||||
"tersoff/mod/c (o)"_pair_tersoff_mod.html,
|
||||
"tersoff/zbl (gko)"_pair_tersoff_zbl.html,
|
||||
"tip4p/cut (o)"_pair_coul.html,
|
||||
"tip4p/long (o)"_pair_coul.html,
|
||||
"tri/lj"_pair_tri_lj.html,
|
||||
"vashishta (o)"_pair_vashishta.html,
|
||||
"vashishta (ko)"_pair_vashishta.html,
|
||||
"vashishta/table (o)"_pair_vashishta.html,
|
||||
"yukawa (go)"_pair_yukawa.html,
|
||||
"yukawa/colloid (go)"_pair_yukawa_colloid.html,
|
||||
"zbl (go)"_pair_zbl.html :tb(c=4,ea=c)
|
||||
@ -931,6 +1003,7 @@ These are additional pair styles in USER packages, which can be used
|
||||
if "LAMMPS is built with the appropriate
|
||||
package"_Section_start.html#start_3.
|
||||
|
||||
"agni (o)"_pair_agni.html,
|
||||
"awpmd/cut"_pair_awpmd.html,
|
||||
"buck/mdf"_pair_mdf.html,
|
||||
"coul/cut/soft (o)"_pair_lj_soft.html,
|
||||
@ -964,6 +1037,11 @@ package"_Section_start.html#start_3.
|
||||
"morse/soft"_pair_morse.html,
|
||||
"multi/lucy"_pair_multi_lucy.html,
|
||||
"multi/lucy/rx"_pair_multi_lucy_rx.html,
|
||||
"oxdna/coaxstk"_pair_oxdna.html,
|
||||
"oxdna/excv"_pair_oxdna.html,
|
||||
"oxdna/hbond"_pair_oxdna.html,
|
||||
"oxdna/stk"_pair_oxdna.html,
|
||||
"oxdna/xstk"_pair_oxdna.html,
|
||||
"quip"_pair_quip.html,
|
||||
"reax/c (k)"_pair_reax_c.html,
|
||||
"smd/hertz"_pair_smd_hertz.html,
|
||||
@ -998,7 +1076,7 @@ KOKKOS, o = USER-OMP, t = OPT.
|
||||
"none"_bond_none.html,
|
||||
"zero"_bond_zero.html,
|
||||
"hybrid"_bond_hybrid.html,
|
||||
"class2 (o)"_bond_class2.html,
|
||||
"class2 (ko)"_bond_class2.html,
|
||||
"fene (iko)"_bond_fene.html,
|
||||
"fene/expand (o)"_bond_fene_expand.html,
|
||||
"harmonic (ko)"_bond_harmonic.html,
|
||||
@ -1012,7 +1090,8 @@ if "LAMMPS is built with the appropriate
|
||||
package"_Section_start.html#start_3.
|
||||
|
||||
"harmonic/shift (o)"_bond_harmonic_shift.html,
|
||||
"harmonic/shift/cut (o)"_bond_harmonic_shift_cut.html :tb(c=4,ea=c)
|
||||
"harmonic/shift/cut (o)"_bond_harmonic_shift_cut.html,
|
||||
"oxdna/fene"_bond_oxdna_fene.html :tb(c=4,ea=c)
|
||||
|
||||
:line
|
||||
|
||||
@ -1030,7 +1109,7 @@ USER-OMP, t = OPT.
|
||||
"zero"_angle_zero.html,
|
||||
"hybrid"_angle_hybrid.html,
|
||||
"charmm (ko)"_angle_charmm.html,
|
||||
"class2 (o)"_angle_class2.html,
|
||||
"class2 (ko)"_angle_class2.html,
|
||||
"cosine (o)"_angle_cosine.html,
|
||||
"cosine/delta (o)"_angle_cosine_delta.html,
|
||||
"cosine/periodic (o)"_angle_cosine_periodic.html,
|
||||
@ -1066,7 +1145,7 @@ USER-OMP, t = OPT.
|
||||
"zero"_dihedral_zero.html,
|
||||
"hybrid"_dihedral_hybrid.html,
|
||||
"charmm (ko)"_dihedral_charmm.html,
|
||||
"class2 (o)"_dihedral_class2.html,
|
||||
"class2 (ko)"_dihedral_class2.html,
|
||||
"harmonic (io)"_dihedral_harmonic.html,
|
||||
"helix (o)"_dihedral_helix.html,
|
||||
"multi/harmonic (o)"_dihedral_multi_harmonic.html,
|
||||
@ -1098,7 +1177,7 @@ USER-OMP, t = OPT.
|
||||
"none"_improper_none.html,
|
||||
"zero"_improper_zero.html,
|
||||
"hybrid"_improper_hybrid.html,
|
||||
"class2 (o)"_improper_class2.html,
|
||||
"class2 (ko)"_improper_class2.html,
|
||||
"cvff (io)"_improper_cvff.html,
|
||||
"harmonic (ko)"_improper_harmonic.html,
|
||||
"umbrella (o)"_improper_umbrella.html :tb(c=4,ea=c)
|
||||
|
||||
@ -22,7 +22,7 @@ either conceptually, or as printed out by the program.
|
||||
|
||||
12.1 Common problems :link(err_1),h4
|
||||
|
||||
If two LAMMPS runs do not produce the same answer on different
|
||||
If two LAMMPS runs do not produce the exact same answer on different
|
||||
machines or different numbers of processors, this is typically not a
|
||||
bug. In theory you should get identical answers on any number of
|
||||
processors and on any machine. In practice, numerical round-off can
|
||||
@ -55,12 +55,13 @@ LAMMPS errors are detected at setup time; others like a bond
|
||||
stretching too far may not occur until the middle of a run.
|
||||
|
||||
LAMMPS tries to flag errors and print informative error messages so
|
||||
you can fix the problem. Of course, LAMMPS cannot figure out your
|
||||
physics or numerical mistakes, like choosing too big a timestep,
|
||||
specifying erroneous force field coefficients, or putting 2 atoms on
|
||||
top of each other! If you run into errors that LAMMPS doesn't catch
|
||||
that you think it should flag, please send an email to the
|
||||
"developers"_http://lammps.sandia.gov/authors.html.
|
||||
you can fix the problem. For most errors it will also print the last
|
||||
input script command that it was processing. Of course, LAMMPS cannot
|
||||
figure out your physics or numerical mistakes, like choosing too big a
|
||||
timestep, specifying erroneous force field coefficients, or putting 2
|
||||
atoms on top of each other! If you run into errors that LAMMPS
|
||||
doesn't catch that you think it should flag, please send an email to
|
||||
the "developers"_http://lammps.sandia.gov/authors.html.
|
||||
|
||||
If you get an error message about an invalid command in your input
|
||||
script, you can determine what command is causing the problem by
|
||||
@ -79,12 +80,24 @@ order. If you mess this up, LAMMPS will often flag the error, but it
|
||||
may also simply read a bogus argument and assign a value that is
|
||||
valid, but not what you wanted. E.g. trying to read the string "abc"
|
||||
as an integer value of 0. Careful reading of the associated doc page
|
||||
for the command should allow you to fix these problems. Note that
|
||||
some commands allow for variables to be specified in place of numeric
|
||||
constants so that the value can be evaluated and change over the
|
||||
course of a run. This is typically done with the syntax {v_name} for
|
||||
a parameter, where name is the name of the variable. This is only
|
||||
allowed if the command documentation says it is.
|
||||
for the command should allow you to fix these problems. In most cases,
|
||||
where LAMMPS expects to read a number, either integer or floating point,
|
||||
it performs a stringent test on whether the provided input actually
|
||||
is an integer or floating-point number, respectively, and reject the
|
||||
input with an error message (for instance, when an integer is required,
|
||||
but a floating-point number 1.0 is provided):
|
||||
|
||||
ERROR: Expected integer parameter in input script or data file :pre
|
||||
|
||||
Some commands allow for using variable references in place of numeric
|
||||
constants so that the value can be evaluated and may change over the
|
||||
course of a run. This is typically done with the syntax {v_name} for a
|
||||
parameter, where name is the name of the variable. On the other hand,
|
||||
immediate variable expansion with the syntax ${name} is performed while
|
||||
reading the input and before parsing commands,
|
||||
|
||||
NOTE: Using a variable reference (i.e. {v_name}) is only allowed if
|
||||
the documentation of the corresponding command explicitly says it is.
|
||||
|
||||
Generally, LAMMPS will print a message to the screen and logfile and
|
||||
exit gracefully when it encounters a fatal error. Sometimes it will
|
||||
@ -8116,11 +8129,11 @@ boundary of a processor's sub-domain has moved more than 1/2 the
|
||||
rebuilt and atoms being migrated to new processors. This also means
|
||||
you may be missing pairwise interactions that need to be computed.
|
||||
The solution is to change the re-neighboring criteria via the
|
||||
"neigh_modify"_neigh_modify command. The safest settings are "delay 0
|
||||
every 1 check yes". Second, it may mean that an atom has moved far
|
||||
outside a processor's sub-domain or even the entire simulation box.
|
||||
This indicates bad physics, e.g. due to highly overlapping atoms, too
|
||||
large a timestep, etc. :dd
|
||||
"neigh_modify"_neigh_modify.html command. The safest settings are
|
||||
"delay 0 every 1 check yes". Second, it may mean that an atom has
|
||||
moved far outside a processor's sub-domain or even the entire
|
||||
simulation box. This indicates bad physics, e.g. due to highly
|
||||
overlapping atoms, too large a timestep, etc. :dd
|
||||
|
||||
{Out of range atoms - cannot compute PPPM} :dt
|
||||
|
||||
@ -8132,11 +8145,11 @@ boundary of a processor's sub-domain has moved more than 1/2 the
|
||||
rebuilt and atoms being migrated to new processors. This also means
|
||||
you may be missing pairwise interactions that need to be computed.
|
||||
The solution is to change the re-neighboring criteria via the
|
||||
"neigh_modify"_neigh_modify command. The safest settings are "delay 0
|
||||
every 1 check yes". Second, it may mean that an atom has moved far
|
||||
outside a processor's sub-domain or even the entire simulation box.
|
||||
This indicates bad physics, e.g. due to highly overlapping atoms, too
|
||||
large a timestep, etc. :dd
|
||||
"neigh_modify"_neigh_modify.html command. The safest settings are
|
||||
"delay 0 every 1 check yes". Second, it may mean that an atom has
|
||||
moved far outside a processor's sub-domain or even the entire
|
||||
simulation box. This indicates bad physics, e.g. due to highly
|
||||
overlapping atoms, too large a timestep, etc. :dd
|
||||
|
||||
{Out of range atoms - cannot compute PPPMDisp} :dt
|
||||
|
||||
@ -8148,11 +8161,11 @@ boundary of a processor's sub-domain has moved more than 1/2 the
|
||||
rebuilt and atoms being migrated to new processors. This also means
|
||||
you may be missing pairwise interactions that need to be computed.
|
||||
The solution is to change the re-neighboring criteria via the
|
||||
"neigh_modify"_neigh_modify command. The safest settings are "delay 0
|
||||
every 1 check yes". Second, it may mean that an atom has moved far
|
||||
outside a processor's sub-domain or even the entire simulation box.
|
||||
This indicates bad physics, e.g. due to highly overlapping atoms, too
|
||||
large a timestep, etc. :dd
|
||||
"neigh_modify"_neigh_modify.html command. The safest settings are
|
||||
"delay 0 every 1 check yes". Second, it may mean that an atom has
|
||||
moved far outside a processor's sub-domain or even the entire
|
||||
simulation box. This indicates bad physics, e.g. due to highly
|
||||
overlapping atoms, too large a timestep, etc. :dd
|
||||
|
||||
{Overflow of allocated fix vector storage} :dt
|
||||
|
||||
|
||||
@ -1854,13 +1854,19 @@ internal LAMMPS operations. Note that LAMMPS classes are defined
|
||||
within a LAMMPS namespace (LAMMPS_NS) if you use them from another C++
|
||||
application.
|
||||
|
||||
Library.cpp contains these 5 basic functions:
|
||||
Library.cpp contains these functions for creating and destroying an
|
||||
instance of LAMMPS and sending it commands to execute. See the
|
||||
documentation in the src/library.cpp file for details:
|
||||
|
||||
void lammps_open(int, char **, MPI_Comm, void **)
|
||||
void lammps_open_no_mpi(int, char **, void **)
|
||||
void lammps_close(void *)
|
||||
int lammps_version(void *)
|
||||
void lammps_file(void *, char *)
|
||||
char *lammps_command(void *, char *) :pre
|
||||
char *lammps_command(void *, char *)
|
||||
void lammps_commands_list(void *, int, char **)
|
||||
void lammps_commands_string(void *, char *)
|
||||
void lammps_free(void *) :pre
|
||||
|
||||
The lammps_open() function is used to initialize LAMMPS, passing in a
|
||||
list of strings as if they were "command-line
|
||||
@ -1880,6 +1886,10 @@ half to the other code and run both codes simultaneously before
|
||||
syncing them up periodically. Or it might instantiate multiple
|
||||
instances of LAMMPS to perform different calculations.
|
||||
|
||||
The lammps_open_no_mpi() function is similar except that no MPI
|
||||
communicator is passed from the caller. Instead, MPI_COMM_WORLD is
|
||||
used to instantiate LAMMPS, and MPI is initialzed if necessary.
|
||||
|
||||
The lammps_close() function is used to shut down an instance of LAMMPS
|
||||
and free all its memory.
|
||||
|
||||
@ -1891,44 +1901,106 @@ changes to the LAMMPS command syntax between versions. The returned
|
||||
LAMMPS version code is an integer (e.g. 2 Sep 2015 results in
|
||||
20150902) that grows with every new LAMMPS version.
|
||||
|
||||
The lammps_file() and lammps_command() functions are used to pass a
|
||||
file or string to LAMMPS as if it were an input script or single
|
||||
command in an input script. Thus the calling code can read or
|
||||
generate a series of LAMMPS commands one line at a time and pass it
|
||||
thru the library interface to setup a problem and then run it,
|
||||
interleaving the lammps_command() calls with other calls to extract
|
||||
information from LAMMPS, perform its own operations, or call another
|
||||
code's library.
|
||||
The lammps_file(), lammps_command(), lammps_commands_list(), and
|
||||
lammps_commands_string() functions are used to pass one or more
|
||||
commands to LAMMPS to execute, the same as if they were coming from an
|
||||
input script.
|
||||
|
||||
Other useful functions are also included in library.cpp. For example:
|
||||
Via these functions, the calling code can read or generate a series of
|
||||
LAMMPS commands one or multiple at a time and pass it thru the library
|
||||
interface to setup a problem and then run it in stages. The caller
|
||||
can interleave the command function calls with operations it performs,
|
||||
calls to extract information from or set information within LAMMPS, or
|
||||
calls to another code's library.
|
||||
|
||||
The lammps_file() function passes the filename of an input script.
|
||||
The lammps_command() function passes a single command as a string.
|
||||
The lammps_commands_list() function passes multiple commands in a
|
||||
char** list. In both lammps_command() and lammps_commands_list(),
|
||||
individual commands may or may not have a trailing newline. The
|
||||
lammps_commands_string() function passes multiple commands
|
||||
concatenated into one long string, separated by newline characters.
|
||||
In both lammps_commands_list() and lammps_commands_string(), a single
|
||||
command can be spread across multiple lines, if the last printable
|
||||
character of all but the last line is "&", the same as if the lines
|
||||
appeared in an input script.
|
||||
|
||||
The lammps_free() function is a clean-up function to free memory that
|
||||
the library allocated previously via other function calls. See
|
||||
comments in src/library.cpp file for which other functions need this
|
||||
clean-up.
|
||||
|
||||
Library.cpp also contains these functions for extracting information
|
||||
from LAMMPS and setting value within LAMMPS. Again, see the
|
||||
documentation in the src/library.cpp file for details, including
|
||||
which quantities can be queried by name:
|
||||
|
||||
void *lammps_extract_global(void *, char *)
|
||||
void lammps_extract_box(void *, double *, double *,
|
||||
double *, double *, double *, int *, int *)
|
||||
void *lammps_extract_atom(void *, char *)
|
||||
void *lammps_extract_compute(void *, char *, int, int)
|
||||
void *lammps_extract_fix(void *, char *, int, int, int, int)
|
||||
void *lammps_extract_variable(void *, char *, char *)
|
||||
int lammps_set_variable(void *, char *, char *)
|
||||
void *lammps_extract_variable(void *, char *, char *) :pre
|
||||
|
||||
void lammps_reset_box(void *, double *, double *, double, double, double)
|
||||
int lammps_set_variable(void *, char *, char *) :pre
|
||||
|
||||
double lammps_get_thermo(void *, char *)
|
||||
int lammps_get_natoms(void *)
|
||||
void lammps_get_coords(void *, double *)
|
||||
void lammps_put_coords(void *, double *) :pre
|
||||
void lammps_gather_atoms(void *, double *)
|
||||
void lammps_scatter_atoms(void *, double *) :pre
|
||||
void lammps_create_atoms(void *, int, tagint *, int *, double *, double *,
|
||||
imageint *, int) :pre
|
||||
|
||||
These can extract various global or per-atom quantities from LAMMPS as
|
||||
well as values calculated by a compute, fix, or variable. The
|
||||
"set_variable" function can set an existing string-style variable to a
|
||||
new value, so that subsequent LAMMPS commands can access the variable.
|
||||
The "get" and "put" operations can retrieve and reset atom
|
||||
coordinates. See the library.cpp file and its associated header file
|
||||
library.h for details.
|
||||
The extract functions return a pointer to various global or per-atom
|
||||
quantities stored in LAMMPS or to values calculated by a compute, fix,
|
||||
or variable. The pointer returned by the extract_global() function
|
||||
can be used as a permanent reference to a value which may change. For
|
||||
the other extract functions, the underlying storage may be reallocated
|
||||
as LAMMPS runs, so you need to re-call the function to assure a
|
||||
current pointer or returned value(s).
|
||||
|
||||
The key idea of the library interface is that you can write any
|
||||
functions you wish to define how your code talks to LAMMPS and add
|
||||
them to src/library.cpp and src/library.h, as well as to the "Python
|
||||
interface"_Section_python.html. The routines you add can access or
|
||||
change any LAMMPS data you wish. The examples/COUPLE and python
|
||||
directories have example C++ and C and Python codes which show how a
|
||||
driver code can link to LAMMPS as a library, run LAMMPS on a subset of
|
||||
processors, grab data from LAMMPS, change it, and put it back into
|
||||
LAMMPS.
|
||||
The lammps_reset_box() function resets the size and shape of the
|
||||
simulation box, e.g. as part of restoring a previously extracted and
|
||||
saved state of a simulation.
|
||||
|
||||
The lammps_set_variable() function can set an existing string-style
|
||||
variable to a new string value, so that subsequent LAMMPS commands can
|
||||
access the variable.
|
||||
|
||||
The lammps_get_thermo() function returns the current value of a thermo
|
||||
keyword as a double precision value.
|
||||
|
||||
The lammps_get_natoms() function returns the total number of atoms in
|
||||
the system and can be used by the caller to allocate space for the
|
||||
lammps_gather_atoms() and lammps_scatter_atoms() functions. The
|
||||
gather function collects atom info of the requested type (atom coords,
|
||||
types, forces, etc) from all procsesors, orders them by atom ID, and
|
||||
returns a full list to each calling processor. The scatter function
|
||||
does the inverse. It distributes the same kinds of values,
|
||||
passed by the caller, to each atom owned by individual processors.
|
||||
|
||||
The lammps_create_atoms() function takes a list of N atoms as input
|
||||
with atom types and coords (required), an optionally atom IDs and
|
||||
velocities and image flags. It uses the coords of each atom to assign
|
||||
it as a new atom to the processor that owns it. This function is
|
||||
useful to add atoms to a simulation or (in tandem with
|
||||
lammps_reset_box()) to restore a previously extracted and saved state
|
||||
of a simulation. Additional properties for the new atoms can then be
|
||||
assigned via the lammps_scatter_atoms() or lammps_extract_atom()
|
||||
functions.
|
||||
|
||||
The examples/COUPLE and python directories have example C++ and C and
|
||||
Python codes which show how a driver code can link to LAMMPS as a
|
||||
library, run LAMMPS on a subset of processors, grab data from LAMMPS,
|
||||
change it, and put it back into LAMMPS.
|
||||
|
||||
NOTE: You can write code for additional functions as needed to define
|
||||
how your code talks to LAMMPS and add them to src/library.cpp and
|
||||
src/library.h, as well as to the "Python
|
||||
interface"_Section_python.html. The added functions can access or
|
||||
change any LAMMPS data you wish.
|
||||
|
||||
:line
|
||||
|
||||
@ -2501,7 +2573,7 @@ well.
|
||||
6.26 Adiabatic core/shell model :link(howto_26),h4
|
||||
|
||||
The adiabatic core-shell model by "Mitchell and
|
||||
Finchham"_#MitchellFinchham is a simple method for adding
|
||||
Fincham"_#MitchellFincham is a simple method for adding
|
||||
polarizability to a system. In order to mimic the electron shell of
|
||||
an ion, a satellite particle is attached to it. This way the ions are
|
||||
split into a core and a shell where the latter is meant to react to
|
||||
@ -2595,13 +2667,16 @@ bond_coeff 1 63.014 0.0
|
||||
bond_coeff 2 25.724 0.0 :pre
|
||||
|
||||
When running dynamics with the adiabatic core/shell model, the
|
||||
following issues should be considered. Since the relative motion of
|
||||
the core and shell particles corresponds to the polarization, typical
|
||||
thermostats can alter the polarization behaviour, meaning the shell
|
||||
will not react freely to its electrostatic environment. This is
|
||||
critical during the equilibration of the system. Therefore
|
||||
it's typically desirable to decouple the relative motion of the
|
||||
core/shell pair, which is an imaginary degree of freedom, from the
|
||||
following issues should be considered. The relative motion of
|
||||
the core and shell particles corresponds to the polarization,
|
||||
hereby an instantaneous relaxation of the shells is approximated
|
||||
and a fast core/shell spring frequency ensures a nearly constant
|
||||
internal kinetic energy during the simulation.
|
||||
Thermostats can alter this polarization behaviour, by scaling the
|
||||
internal kinetic energy, meaning the shell will not react freely to
|
||||
its electrostatic environment.
|
||||
Therefore it is typically desirable to decouple the relative motion of
|
||||
the core/shell pair, which is an imaginary degree of freedom, from the
|
||||
real physical system. To do that, the "compute
|
||||
temp/cs"_compute_temp_cs.html command can be used, in conjunction with
|
||||
any of the thermostat fixes, such as "fix nvt"_fix_nh.html or "fix
|
||||
@ -2632,6 +2707,22 @@ fix thermostatequ all nve # integrator as needed f
|
||||
fix_modify thermoberendsen temp CSequ
|
||||
thermo_modify temp CSequ # output of center-of-mass derived temperature :pre
|
||||
|
||||
The pressure for the core/shell system is computed via the regular
|
||||
LAMMPS convention by "treating the cores and shells as individual
|
||||
particles"_#MitchellFincham2. For the thermo output of the pressure
|
||||
as well as for the application of a barostat, it is necessary to
|
||||
use an additional "pressure"_compute_pressure compute based on the
|
||||
default "temperature"_compute_temp and specifying it as a second
|
||||
argument in "fix modify"_fix_modify.html and
|
||||
"thermo_modify"_thermo_modify.html resulting in:
|
||||
|
||||
(...)
|
||||
compute CSequ all temp/cs cores shells
|
||||
compute thermo_press_lmp all pressure thermo_temp # pressure for individual particles
|
||||
thermo_modify temp CSequ press thermo_press_lmp # modify thermo to regular pressure
|
||||
fix press_bar all npt temp 300 300 0.04 iso 0 0 0.4
|
||||
fix_modify press_bar temp CSequ press thermo_press_lmp # pressure modification for correct kinetic scalar :pre
|
||||
|
||||
If "compute temp/cs"_compute_temp_cs.html is used, the decoupled
|
||||
relative motion of the core and the shell should in theory be
|
||||
stable. However numerical fluctuation can introduce a small
|
||||
@ -2652,25 +2743,19 @@ temp/cs"_compute_temp_cs.html command to the {temp} keyword of the
|
||||
velocity all create 1427 134 bias yes temp CSequ
|
||||
velocity all scale 1427 temp CSequ :pre
|
||||
|
||||
It is important to note that the polarizability of the core/shell
|
||||
pairs is based on their relative motion. Therefore the choice of
|
||||
spring force and mass ratio need to ensure much faster relative motion
|
||||
of the 2 atoms within the core/shell pair than their center-of-mass
|
||||
velocity. This allow the shells to effectively react instantaneously
|
||||
to the electrostatic environment. This fast movement also limits the
|
||||
timestep size that can be used.
|
||||
To maintain the correct polarizability of the core/shell pairs, the
|
||||
kinetic energy of the internal motion shall remain nearly constant.
|
||||
Therefore the choice of spring force and mass ratio need to ensure
|
||||
much faster relative motion of the 2 atoms within the core/shell pair
|
||||
than their center-of-mass velocity. This allows the shells to
|
||||
effectively react instantaneously to the electrostatic environment and
|
||||
limits energy transfer to or from the core/shell oscillators.
|
||||
This fast movement also dictates the timestep that can be used.
|
||||
|
||||
The primary literature of the adiabatic core/shell model suggests that
|
||||
the fast relative motion of the core/shell pairs only allows negligible
|
||||
energy transfer to the environment. Therefore it is not intended to
|
||||
decouple the core/shell degree of freedom from the physical system
|
||||
during production runs. In other words, the "compute
|
||||
temp/cs"_compute_temp_cs.html command should not be used during
|
||||
production runs and is only required during equilibration. This way one
|
||||
is consistent with literature (based on the code packages DL_POLY or
|
||||
GULP for instance).
|
||||
|
||||
The mentioned energy transfer will typically lead to a a small drift
|
||||
energy transfer to the environment.
|
||||
The mentioned energy transfer will typically lead to a small drift
|
||||
in total energy over time. This internal energy can be monitored
|
||||
using the "compute chunk/atom"_compute_chunk_atom.html and "compute
|
||||
temp/chunk"_compute_temp_chunk.html commands. The internal kinetic
|
||||
@ -2689,14 +2774,20 @@ command, to use as input to the "compute
|
||||
chunk/atom"_compute_chunk_atom.html command to define the core/shell
|
||||
pairs as chunks.
|
||||
|
||||
For example,
|
||||
For example if core/shell pairs are the only molecules:
|
||||
|
||||
read_data NaCl_CS_x0.1_prop.data
|
||||
compute prop all property/atom molecule
|
||||
compute cs_chunk all chunk/atom c_prop
|
||||
compute cstherm all temp/chunk cs_chunk temp internal com yes cdof 3.0 # note the chosen degrees of freedom for the core/shell pairs
|
||||
fix ave_chunk all ave/time 10 1 10 c_cstherm file chunk.dump mode vector :pre
|
||||
|
||||
For example if core/shell pairs and other molecules are present:
|
||||
|
||||
fix csinfo all property/atom i_CSID # property/atom command
|
||||
read_data NaCl_CS_x0.1_prop.data fix csinfo NULL CS-Info # atom property added in the data-file
|
||||
compute prop all property/atom i_CSID
|
||||
compute cs_chunk all chunk/atom c_prop
|
||||
compute cstherm all temp/chunk cs_chunk temp internal com yes cdof 3.0 # note the chosen degrees of freedom for the core/shell pairs
|
||||
fix ave_chunk all ave/time 10 1 10 c_cstherm file chunk.dump mode vector :pre
|
||||
(...) :pre
|
||||
|
||||
The additional section in the date file would be formatted like this:
|
||||
|
||||
@ -2771,7 +2862,7 @@ temp/drude"_compute_temp_drude.html. This requires also to use the
|
||||
command {comm_modify vel yes}.
|
||||
|
||||
Short-range damping of the induced dipole interactions can be achieved
|
||||
using Thole functions through the the "pair style
|
||||
using Thole functions through the "pair style
|
||||
thole"_pair_thole.html in "pair_style hybrid/overlay"_pair_hybrid.html
|
||||
with a Coulomb pair style. It may be useful to use {coul/long/cs} or
|
||||
similar from the CORESHELL package if the core and Drude particle come
|
||||
@ -2818,9 +2909,13 @@ Phys, 79, 926 (1983).
|
||||
:link(Shinoda)
|
||||
[(Shinoda)] Shinoda, Shiga, and Mikami, Phys Rev B, 69, 134103 (2004).
|
||||
|
||||
:link(MitchellFinchham)
|
||||
[(Mitchell and Finchham)] Mitchell, Finchham, J Phys Condensed Matter,
|
||||
:link(MitchellFincham)
|
||||
[(Mitchell and Fincham)] Mitchell, Fincham, J Phys Condensed Matter,
|
||||
5, 1031-1038 (1993).
|
||||
|
||||
:link(MitchellFincham2)
|
||||
[(Fincham)] Fincham, Mackrodt and Mitchell, J Phys Condensed Matter,
|
||||
6, 393-404 (1994).
|
||||
|
||||
:link(howto-Lamoureux)
|
||||
[(Lamoureux and Roux)] G. Lamoureux, B. Roux, J. Chem. Phys 119, 3025 (2003)
|
||||
|
||||
@ -366,11 +366,11 @@ complementary modeling tasks.
|
||||
"DL_POLY"_dlpoly
|
||||
"Tinker"_tinker :ul
|
||||
|
||||
:link(charmm,http://www.scripps.edu/brooks)
|
||||
:link(amber,http://amber.scripps.edu)
|
||||
:link(charmm,http://www.charmm.org)
|
||||
:link(amber,http://ambermd.org)
|
||||
:link(namd,http://www.ks.uiuc.edu/Research/namd/)
|
||||
:link(nwchem,http://www.emsl.pnl.gov/docs/nwchem/nwchem.html)
|
||||
:link(dlpoly,http://www.cse.clrc.ac.uk/msi/software/DL_POLY)
|
||||
:link(dlpoly,http://www.ccp5.ac.uk/DL_POLY_CLASSIC)
|
||||
:link(tinker,http://dasher.wustl.edu/tinker)
|
||||
|
||||
CHARMM, AMBER, NAMD, NWCHEM, and Tinker are designed primarily for
|
||||
|
||||
@ -84,7 +84,7 @@ Package, Description, Author(s), Doc page, Example, Library
|
||||
"PERI"_#PERI, Peridynamics models, Mike Parks (Sandia), "pair_style peri"_pair_peri.html, peri, -
|
||||
"POEMS"_#POEMS, coupled rigid body motion, Rudra Mukherjee (JPL), "fix poems"_fix_poems.html, rigid, lib/poems
|
||||
"PYTHON"_#PYTHON, embed Python code in an input script, -, "python"_python.html, python, lib/python
|
||||
"REAX"_#REAX, ReaxFF potential, Aidan Thompson (Sandia), "pair_style reax"_pair_reax.html, reax, lib/reax
|
||||
"REAX"_#REAX, ReaxFF potential, Aidan Thompson (Sandia), "pair_style reax"_pair_reax.html, reax, lib/reax
|
||||
"REPLICA"_#REPLICA, multi-replica methods, -, "Section 6.6.5"_Section_howto.html#howto_5, tad, -
|
||||
"RIGID"_#RIGID, rigid bodies, -, "fix rigid"_fix_rigid.html, rigid, -
|
||||
"SHOCK"_#SHOCK, shock loading methods, -, "fix msst"_fix_msst.html, -, -
|
||||
@ -1140,6 +1140,7 @@ Package, Description, Author(s), Doc page, Example, Pic/movie, Library
|
||||
"USER-ATC"_#USER-ATC, atom-to-continuum coupling, Jones & Templeton & Zimmerman (1), "fix atc"_fix_atc.html, USER/atc, "atc"_atc, lib/atc
|
||||
"USER-AWPMD"_#USER-AWPMD, wave-packet MD, Ilya Valuev (JIHT), "pair_style awpmd/cut"_pair_awpmd.html, USER/awpmd, -, lib/awpmd
|
||||
"USER-CG-CMM"_#USER-CG-CMM, coarse-graining model, Axel Kohlmeyer (Temple U), "pair_style lj/sdk"_pair_sdk.html, USER/cg-cmm, "cg"_cg, -
|
||||
"USER-CGDNA"_#USER-CGDNA, coarse-grained DNA force fields, Oliver Henrich (U Edinburgh), src/USER-CGDNA/README, USER/cgdna, -, -
|
||||
"USER-COLVARS"_#USER-COLVARS, collective variables, Fiorin & Henin & Kohlmeyer (2), "fix colvars"_fix_colvars.html, USER/colvars, "colvars"_colvars, lib/colvars
|
||||
"USER-DIFFRACTION"_#USER-DIFFRACTION, virutal x-ray and electron diffraction, Shawn Coleman (ARL),"compute xrd"_compute_xrd.html, USER/diffraction, -, -
|
||||
"USER-DPD"_#USER-DPD, reactive dissipative particle dynamics (DPD), Larentzos & Mattox & Brennan (5), src/USER-DPD/README, USER/dpd, -, -
|
||||
@ -1153,6 +1154,7 @@ Package, Description, Author(s), Doc page, Example, Pic/movie, Library
|
||||
"USER-MISC"_#USER-MISC, single-file contributions, USER-MISC/README, USER-MISC/README, -, -, -
|
||||
"USER-MANIFOLD"_#USER-MANIFOLD, motion on 2d surface, Stefan Paquay (Eindhoven U of Technology), "fix manifoldforce"_fix_manifoldforce.html, USER/manifold, "manifold"_manifold, -
|
||||
"USER-MOLFILE"_#USER-MOLFILE, "VMD"_VMD molfile plug-ins, Axel Kohlmeyer (Temple U), "dump molfile"_dump_molfile.html, -, -, VMD-MOLFILE
|
||||
"USER-NC-DUMP"_#USER-NC-DUMP, dump output via NetCDF, Lars Pastewka (Karlsruhe Institute of Technology, KIT), "dump nc / dump nc/mpiio"_dump_nc.html, -, -, lib/netcdf
|
||||
"USER-OMP"_#USER-OMP, OpenMP threaded styles, Axel Kohlmeyer (Temple U), "Section 5.3.4"_accelerate_omp.html, -, -, -
|
||||
"USER-PHONON"_#USER-PHONON, phonon dynamical matrix, Ling-Ti Kong (Shanghai Jiao Tong U), "fix phonon"_fix_phonon.html, USER/phonon, -, -
|
||||
"USER-QMMM"_#USER-QMMM, QM/MM coupling, Axel Kohlmeyer (Temple U), "fix qmmm"_fix_qmmm.html, USER/qmmm, -, lib/qmmm
|
||||
@ -1283,6 +1285,31 @@ him directly if you have questions.
|
||||
|
||||
:line
|
||||
|
||||
USER-CGDNA package :link(USER-CGDNA),h5
|
||||
|
||||
Contents: The CGDNA package implements coarse-grained force fields for
|
||||
single- and double-stranded DNA. This is at the moment mainly the
|
||||
oxDNA model, developed by Doye, Louis and Ouldridge at the University
|
||||
of Oxford. The package also contains Langevin-type rigid-body
|
||||
integrators with improved stability.
|
||||
|
||||
See these doc pages to get started:
|
||||
|
||||
"bond_style oxdna_fene"_bond_oxdna_fene.html
|
||||
"pair_style oxdna_excv"_pair_oxdna_excv.html
|
||||
"fix nve/dotc/langevin"_fix_nve_dotc_langevin.html :ul
|
||||
|
||||
Supporting info: /src/USER-CGDNA/README, "bond_style
|
||||
oxdna_fene"_bond_oxdna_fene.html, "pair_style
|
||||
oxdna_excv"_pair_oxdna_excv.html, "fix
|
||||
nve/dotc/langevin"_fix_nve_dotc_langevin.html
|
||||
|
||||
Author: Oliver Henrich at the University of Edinburgh, UK (o.henrich
|
||||
at epcc.ed.ac.uk or ohenrich at ph.ed.ac.uk). Contact him directly if
|
||||
you have any questions.
|
||||
|
||||
:line
|
||||
|
||||
USER-COLVARS package :link(USER-COLVARS),h5
|
||||
|
||||
Contents: COLVARS stands for collective variables which can be used to
|
||||
@ -1598,6 +1625,30 @@ The person who created this package is Axel Kohlmeyer at Temple U
|
||||
|
||||
:line
|
||||
|
||||
USER-NC-DUMP package :link(USER-NC-DUMP),h5
|
||||
|
||||
Contents: Dump styles for writing NetCDF format files. NetCDF is a binary,
|
||||
portable, self-describing file format on top of HDF5. The file format
|
||||
contents follow the AMBER NetCDF trajectory conventions
|
||||
(http://ambermd.org/netcdf/nctraj.xhtml), but include extensions to this
|
||||
convention. This package implements a "dump nc"_dump_nc.html command
|
||||
and a "dump nc/mpiio"_dump_nc.html command to output LAMMPS snapshots
|
||||
in this format. See src/USER-NC-DUMP/README for more details.
|
||||
|
||||
NetCDF files can be directly visualized with the following tools:
|
||||
|
||||
Ovito (http://www.ovito.org/). Ovito supports the AMBER convention
|
||||
and all of the above extensions. :ulb,l
|
||||
VMD (http://www.ks.uiuc.edu/Research/vmd/) :l
|
||||
AtomEye (http://www.libatoms.org/). The libAtoms version of AtomEye contains
|
||||
a NetCDF reader that is not present in the standard distribution of AtomEye :l,ule
|
||||
|
||||
The person who created these files is Lars Pastewka at
|
||||
Karlsruhe Institute of Technology (lars.pastewka at kit.edu).
|
||||
Contact him directly if you have questions.
|
||||
|
||||
:line
|
||||
|
||||
USER-OMP package :link(USER-OMP),h5
|
||||
|
||||
Supporting info:
|
||||
|
||||
@ -8,19 +8,26 @@
|
||||
|
||||
11. Python interface to LAMMPS :h3
|
||||
|
||||
LAMMPS can work together with Python in two ways. First, Python can
|
||||
LAMMPS can work together with Python in three ways. First, Python can
|
||||
wrap LAMMPS through the "LAMMPS library
|
||||
interface"_Section_howto.html#howto_19, so that a Python script can
|
||||
create one or more instances of LAMMPS and launch one or more
|
||||
simulations. In Python lingo, this is "extending" Python with LAMMPS.
|
||||
|
||||
Second, LAMMPS can use the Python interpreter, so that a LAMMPS input
|
||||
Second, the low-level Python interface can be used indirectly through the
|
||||
PyLammps and IPyLammps wrapper classes in Python. These wrappers try to
|
||||
simplify the usage of LAMMPS in Python by providing an object-based interface
|
||||
to common LAMMPS functionality. It also reduces the amount of code necessary to
|
||||
parameterize LAMMPS scripts through Python and makes variables and computes
|
||||
directly accessible. See "PyLammps interface"_#py_9 for more details.
|
||||
|
||||
Third, LAMMPS can use the Python interpreter, so that a LAMMPS input
|
||||
script can invoke Python code, and pass information back-and-forth
|
||||
between the input script and Python functions you write. The Python
|
||||
code can also callback to LAMMPS to query or change its attributes.
|
||||
In Python lingo, this is "embedding" Python in LAMMPS.
|
||||
|
||||
This section describes how to do both.
|
||||
This section describes how to use these three approaches.
|
||||
|
||||
11.1 "Overview of running LAMMPS from Python"_#py_1
|
||||
11.2 "Overview of using Python from a LAMMPS script"_#py_2
|
||||
@ -29,7 +36,8 @@ This section describes how to do both.
|
||||
11.5 "Extending Python with MPI to run in parallel"_#py_5
|
||||
11.6 "Testing the Python-LAMMPS interface"_#py_6
|
||||
11.7 "Using LAMMPS from Python"_#py_7
|
||||
11.8 "Example Python scripts that use LAMMPS"_#py_8 :ul
|
||||
11.8 "Example Python scripts that use LAMMPS"_#py_8
|
||||
11.9 "PyLammps interface"_#py_9 :ul
|
||||
|
||||
If you are not familiar with it, "Python"_http://www.python.org is a
|
||||
powerful scripting and programming language which can essentially do
|
||||
@ -534,10 +542,11 @@ from lammps import lammps :pre
|
||||
These are the methods defined by the lammps module. If you look at
|
||||
the files src/library.cpp and src/library.h you will see that they
|
||||
correspond one-to-one with calls you can make to the LAMMPS library
|
||||
from a C++ or C or Fortran program.
|
||||
from a C++ or C or Fortran program, and which are described in
|
||||
"Section 6.19"_Section_howto.html#howto_19 of the manual.
|
||||
|
||||
lmp = lammps() # create a LAMMPS object using the default liblammps.so library
|
||||
4 optional args are allowed: name, cmdargs, ptr, comm
|
||||
# 4 optional args are allowed: name, cmdargs, ptr, comm
|
||||
lmp = lammps(ptr=lmpptr) # use lmpptr as previously created LAMMPS object
|
||||
lmp = lammps(comm=split) # create a LAMMPS object with a custom communicator, requires mpi4py 2.0.0 or later
|
||||
lmp = lammps(name="g++") # create a LAMMPS object using the liblammps_g++.so library
|
||||
@ -549,6 +558,8 @@ version = lmp.version() # return the numerical version id, e.g. LAMMPS 2 Sep 20
|
||||
|
||||
lmp.file(file) # run an entire input script, file = "in.lj"
|
||||
lmp.command(cmd) # invoke a single LAMMPS command, cmd = "run 100" :pre
|
||||
lmp.commands_list(cmdlist) # invoke commands in cmdlist = ["run 10", "run 20"]
|
||||
lmp.commands_string(multicmd) # invoke commands in multicmd = "run 10\nrun 20"
|
||||
|
||||
xlo = lmp.extract_global(name,type) # extract a global quantity
|
||||
# name = "boxxlo", "nlocal", etc
|
||||
@ -580,6 +591,8 @@ var = lmp.extract_variable(name,group,flag) # extract value(s) from a variable
|
||||
# 1 = atom-style variable :pre
|
||||
|
||||
flag = lmp.set_variable(name,value) # set existing named string-style variable to value, flag = 0 if successful
|
||||
value = lmp.get_thermo(name) # return current value of a thermo keyword
|
||||
|
||||
natoms = lmp.get_natoms() # total # of atoms as int
|
||||
data = lmp.gather_atoms(name,type,count) # return atom attribute of all atoms gathered into data, ordered by atom ID
|
||||
# name = "x", "charge", "type", etc
|
||||
@ -599,9 +612,10 @@ create an instance of LAMMPS, wrapped in a Python class by the lammps
|
||||
Python module, and return an instance of the Python class as lmp. It
|
||||
is used to make all subequent calls to the LAMMPS library.
|
||||
|
||||
Additional arguments can be used to tell Python the name of the shared
|
||||
library to load or to pass arguments to the LAMMPS instance, the same
|
||||
as if LAMMPS were launched from a command-line prompt.
|
||||
Additional arguments to lammps() can be used to tell Python the name
|
||||
of the shared library to load or to pass arguments to the LAMMPS
|
||||
instance, the same as if LAMMPS were launched from a command-line
|
||||
prompt.
|
||||
|
||||
If the ptr argument is set like this:
|
||||
|
||||
@ -626,8 +640,9 @@ lmp2 = lammps()
|
||||
lmp1.file("in.file1")
|
||||
lmp2.file("in.file2") :pre
|
||||
|
||||
The file() and command() methods allow an input script or single
|
||||
commands to be invoked.
|
||||
The file(), command(), commands_list(), commands_string() methods
|
||||
allow an input script, a single command, or multiple commands to be
|
||||
invoked.
|
||||
|
||||
The extract_global(), extract_atom(), extract_compute(),
|
||||
extract_fix(), and extract_variable() methods return values or
|
||||
@ -817,3 +832,7 @@ different visualization package options. Click to see larger images:
|
||||
:image(JPG/screenshot_atomeye_small.jpg,JPG/screenshot_atomeye.jpg)
|
||||
:image(JPG/screenshot_pymol_small.jpg,JPG/screenshot_pymol.jpg)
|
||||
:image(JPG/screenshot_vmd_small.jpg,JPG/screenshot_vmd.jpg)
|
||||
|
||||
11.9 PyLammps interface :link(py_9),h4
|
||||
|
||||
Please see the "PyLammps Tutorial"_tutorial_pylammps.html.
|
||||
|
||||
@ -413,7 +413,7 @@ uses (for performing 1d FFTs) when running the particle-particle
|
||||
particle-mesh (PPPM) option for long-range Coulombics via the
|
||||
"kspace_style"_kspace_style.html command.
|
||||
|
||||
LAMMPS supports various open-source or vendor-supplied FFT libraries
|
||||
LAMMPS supports common open-source or vendor-supplied FFT libraries
|
||||
for this purpose. If you leave these 3 variables blank, LAMMPS will
|
||||
use the open-source "KISS FFT library"_http://kissfft.sf.net, which is
|
||||
included in the LAMMPS distribution. This library is portable to all
|
||||
@ -423,10 +423,9 @@ package in your build, you can also leave the 3 variables blank.
|
||||
|
||||
Otherwise, select which kinds of FFTs to use as part of the FFT_INC
|
||||
setting by a switch of the form -DFFT_XXX. Recommended values for XXX
|
||||
are: MKL, SCSL, FFTW2, and FFTW3. Legacy options are: INTEL, SGI,
|
||||
ACML, and T3E. For backward compatability, using -DFFT_FFTW will use
|
||||
the FFTW2 library. Using -DFFT_NONE will use the KISS library
|
||||
described above.
|
||||
are: MKL or FFTW3. FFTW2 and NONE are supported as legacy options.
|
||||
Selecting -DFFT_FFTW will use the FFTW3 library and -DFFT_NONE will
|
||||
use the KISS library described above.
|
||||
|
||||
You may also need to set the FFT_INC, FFT_PATH, and FFT_LIB variables,
|
||||
so the compiler and linker can find the needed FFT header and library
|
||||
@ -706,7 +705,7 @@ future changes to LAMMPS.
|
||||
User packages, such as user-atc or user-omp, have been contributed by
|
||||
users, and always begin with the user prefix. If they are a single
|
||||
command (single file), they are typically in the user-misc package.
|
||||
Otherwise, they are a a set of files grouped together which add a
|
||||
Otherwise, they are a set of files grouped together which add a
|
||||
specific functionality to the code.
|
||||
|
||||
User packages don't necessarily meet the requirements of the standard
|
||||
@ -1601,9 +1600,9 @@ implementations, either by environment variables that specify how to
|
||||
order physical processors, or by config files that specify what
|
||||
physical processors to assign to each MPI rank. The -reorder switch
|
||||
simply gives you a portable way to do this without relying on MPI
|
||||
itself. See the "processors out"_processors command for how to output
|
||||
info on the final assignment of physical processors to the LAMMPS
|
||||
simulation domain.
|
||||
itself. See the "processors out"_processors.html command for how
|
||||
to output info on the final assignment of physical processors to
|
||||
the LAMMPS simulation domain.
|
||||
|
||||
-screen file :pre
|
||||
|
||||
@ -1727,7 +1726,7 @@ thermodynamic state and a total run time for the simulation. It then
|
||||
appends statistics about the CPU time and storage requirements for the
|
||||
simulation. An example set of statistics is shown here:
|
||||
|
||||
Loop time of 2.81192 on 4 procs for 300 steps with 2004 atoms
|
||||
Loop time of 2.81192 on 4 procs for 300 steps with 2004 atoms :pre
|
||||
|
||||
Performance: 18.436 ns/day 1.302 hours/ns 106.689 timesteps/s
|
||||
97.0% CPU use with 4 MPI tasks x no OpenMP threads :pre
|
||||
@ -1757,14 +1756,14 @@ Ave special neighs/atom = 2.34032
|
||||
Neighbor list builds = 26
|
||||
Dangerous builds = 0 :pre
|
||||
|
||||
The first section provides a global loop timing summary. The loop time
|
||||
The first section provides a global loop timing summary. The {loop time}
|
||||
is the total wall time for the section. The {Performance} line is
|
||||
provided for convenience to help predicting the number of loop
|
||||
continuations required and for comparing performance with other
|
||||
similar MD codes. The CPU use line provides the CPU utilzation per
|
||||
continuations required and for comparing performance with other,
|
||||
similar MD codes. The {CPU use} line provides the CPU utilzation per
|
||||
MPI task; it should be close to 100% times the number of OpenMP
|
||||
threads (or 1). Lower numbers correspond to delays due to file I/O or
|
||||
insufficient thread utilization.
|
||||
threads (or 1 of no OpenMP). Lower numbers correspond to delays due
|
||||
to file I/O or insufficient thread utilization.
|
||||
|
||||
The MPI task section gives the breakdown of the CPU run time (in
|
||||
seconds) into major categories:
|
||||
@ -1791,7 +1790,7 @@ is present that also prints the CPU utilization in percent. In
|
||||
addition, when using {timer full} and the "package omp"_package.html
|
||||
command are active, a similar timing summary of time spent in threaded
|
||||
regions to monitor thread utilization and load balance is provided. A
|
||||
new entry is the {Reduce} section, which lists the time spend in
|
||||
new entry is the {Reduce} section, which lists the time spent in
|
||||
reducing the per-thread data elements to the storage for non-threaded
|
||||
computation. These thread timings are taking from the first MPI rank
|
||||
only and and thus, as the breakdown for MPI tasks can change from MPI
|
||||
|
||||
@ -29,7 +29,7 @@ Bond Styles: fene, harmonic :l
|
||||
Dihedral Styles: charmm, harmonic, opls :l
|
||||
Fixes: nve, npt, nvt, nvt/sllod :l
|
||||
Improper Styles: cvff, harmonic :l
|
||||
Pair Styles: buck/coul/cut, buck/coul/long, buck, gayberne,
|
||||
Pair Styles: buck/coul/cut, buck/coul/long, buck, eam, gayberne,
|
||||
charmm/coul/long, lj/cut, lj/cut/coul/long, sw, tersoff :l
|
||||
K-Space Styles: pppm :l
|
||||
:ule
|
||||
@ -151,7 +151,7 @@ can start running so that the CPU pipeline is still being used
|
||||
efficiently. Although benefits can be seen by launching a MPI task
|
||||
for every hardware thread, for multinode simulations, we recommend
|
||||
that OpenMP threads are used for SMT instead, either with the
|
||||
USER-INTEL package, "USER-OMP package"_accelerate_omp.html", or
|
||||
USER-INTEL package, "USER-OMP package"_accelerate_omp.html, or
|
||||
"KOKKOS package"_accelerate_kokkos.html. In the example above, up
|
||||
to 36X speedups can be observed by using all 36 physical cores with
|
||||
LAMMPS. By using all 72 hardware threads, an additional 10-30%
|
||||
@ -343,7 +343,7 @@ when using offload.
|
||||
|
||||
Not all styles are supported in the USER-INTEL package. You can mix
|
||||
the USER-INTEL package with styles from the "OPT"_accelerate_opt.html
|
||||
package or the "USER-OMP package"_accelerate_omp.html". Of course,
|
||||
package or the "USER-OMP package"_accelerate_omp.html. Of course,
|
||||
this requires that these packages were installed at build time. This
|
||||
can performed automatically by using "-sf hybrid intel opt" or
|
||||
"-sf hybrid intel omp" command-line options. Alternatively, the "opt"
|
||||
|
||||
@ -110,14 +110,14 @@ mpirun -np 96 -ppn 12 lmp_g++ -k on t 20 -sf kk -in in.lj # ditto on 8 Phis :p
|
||||
[Required hardware/software:]
|
||||
|
||||
Kokkos support within LAMMPS must be built with a C++11 compatible
|
||||
compiler. If using gcc, version 4.8.1 or later is required.
|
||||
compiler. If using gcc, version 4.7.2 or later is required.
|
||||
|
||||
To build with Kokkos support for CPUs, your compiler must support the
|
||||
OpenMP interface. You should have one or more multi-core CPUs so that
|
||||
multiple threads can be launched by each MPI task running on a CPU.
|
||||
|
||||
To build with Kokkos support for NVIDIA GPUs, NVIDIA Cuda software
|
||||
version 6.5 or later must be installed on your system. See the
|
||||
version 7.5 or later must be installed on your system. See the
|
||||
discussion for the "GPU"_accelerate_gpu.html package for details of
|
||||
how to check and do this.
|
||||
|
||||
|
||||
@ -74,7 +74,7 @@ more instructions on how to use the accelerated styles effectively.
|
||||
[Restrictions:]
|
||||
|
||||
This angle style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
MOLECULE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
[Related commands:]
|
||||
|
||||
@ -8,6 +8,7 @@
|
||||
|
||||
angle_style class2 command :h3
|
||||
angle_style class2/omp command :h3
|
||||
angle_style class2/kk command :h3
|
||||
|
||||
[Syntax:]
|
||||
|
||||
|
||||
@ -61,7 +61,7 @@ more instructions on how to use the accelerated styles effectively.
|
||||
[Restrictions:]
|
||||
|
||||
This angle style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
MOLECULE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
[Related commands:]
|
||||
|
||||
@ -66,7 +66,7 @@ more instructions on how to use the accelerated styles effectively.
|
||||
[Restrictions:]
|
||||
|
||||
This angle style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
MOLECULE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
[Related commands:]
|
||||
|
||||
@ -74,7 +74,7 @@ more instructions on how to use the accelerated styles effectively.
|
||||
[Restrictions:]
|
||||
|
||||
This angle style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
MOLECULE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
[Related commands:]
|
||||
|
||||
@ -66,7 +66,7 @@ more instructions on how to use the accelerated styles effectively.
|
||||
[Restrictions:]
|
||||
|
||||
This angle style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
MOLECULE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
[Related commands:]
|
||||
|
||||
@ -65,11 +65,11 @@ more instructions on how to use the accelerated styles effectively.
|
||||
|
||||
:line
|
||||
|
||||
[Restrictions:] none
|
||||
[Restrictions:]
|
||||
|
||||
This angle style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
MOLECULE package. See the "Making LAMMPS"_Section_start.html#start_3
|
||||
section for more info on packages.
|
||||
|
||||
[Related commands:]
|
||||
|
||||
|
||||
@ -76,7 +76,7 @@ for specific angle types.
|
||||
[Restrictions:]
|
||||
|
||||
This angle style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
MOLECULE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
Unlike other angle styles, the hybrid angle style does not store angle
|
||||
|
||||
@ -147,7 +147,7 @@ more instructions on how to use the accelerated styles effectively.
|
||||
[Restrictions:]
|
||||
|
||||
This angle style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
MOLECULE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
[Related commands:]
|
||||
|
||||
@ -166,7 +166,7 @@ stores a per-particle mass and size and orientation (i.e. the corner
|
||||
points of the triangle).
|
||||
|
||||
The {template} style allows molecular topolgy (bonds,angles,etc) to be
|
||||
defined via a molecule template using the "molecule"_molecule.txt
|
||||
defined via a molecule template using the "molecule"_molecule.html
|
||||
command. The template stores one or more molecules with a single copy
|
||||
of the topology info (bonds,angles,etc) of each. Individual atoms
|
||||
only store a template index and template atom to identify which
|
||||
|
||||
@ -8,6 +8,7 @@
|
||||
|
||||
bond_style class2 command :h3
|
||||
bond_style class2/omp command :h3
|
||||
bond_style class2/kk command :h3
|
||||
|
||||
[Syntax:]
|
||||
|
||||
|
||||
@ -70,10 +70,10 @@ more instructions on how to use the accelerated styles effectively.
|
||||
[Restrictions:]
|
||||
|
||||
This bond style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
MOLECULE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
You typically should specify "special_bonds fene"_special_bonds.html"
|
||||
You typically should specify "special_bonds fene"_special_bonds.html
|
||||
or "special_bonds lj/coul 0 1 1"_special_bonds.html to use this bond
|
||||
style. LAMMPS will issue a warning it that's not the case.
|
||||
|
||||
|
||||
@ -73,10 +73,10 @@ more instructions on how to use the accelerated styles effectively.
|
||||
[Restrictions:]
|
||||
|
||||
This bond style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
MOLECULE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
You typically should specify "special_bonds fene"_special_bonds.html"
|
||||
You typically should specify "special_bonds fene"_special_bonds.html
|
||||
or "special_bonds lj/coul 0 1 1"_special_bonds.html to use this bond
|
||||
style. LAMMPS will issue a warning it that's not the case.
|
||||
|
||||
|
||||
@ -65,7 +65,7 @@ more instructions on how to use the accelerated styles effectively.
|
||||
[Restrictions:]
|
||||
|
||||
This bond style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
MOLECULE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
[Related commands:]
|
||||
|
||||
@ -59,7 +59,7 @@ bond types.
|
||||
[Restrictions:]
|
||||
|
||||
This bond style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
MOLECULE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
Unlike other bond styles, the hybrid bond style does not store bond
|
||||
|
||||
@ -64,7 +64,7 @@ more instructions on how to use the accelerated styles effectively.
|
||||
[Restrictions:]
|
||||
|
||||
This bond style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
MOLECULE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
[Related commands:]
|
||||
|
||||
@ -64,7 +64,7 @@ more instructions on how to use the accelerated styles effectively.
|
||||
[Restrictions:]
|
||||
|
||||
This bond style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
MOLECULE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
[Related commands:]
|
||||
|
||||
70
doc/src/bond_oxdna_fene.txt
Normal file
@ -0,0 +1,70 @@
|
||||
"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
|
||||
|
||||
:link(lws,http://lammps.sandia.gov)
|
||||
:link(ld,Manual.html)
|
||||
:link(lc,Section_commands.html#comm)
|
||||
|
||||
:line
|
||||
|
||||
bond_style oxdna_fene command :h3
|
||||
|
||||
[Syntax:]
|
||||
|
||||
bond_style oxdna_fene :pre
|
||||
|
||||
[Examples:]
|
||||
|
||||
bond_style oxdna_fene
|
||||
bond_coeff * 2.0 0.25 0.7525 :pre
|
||||
|
||||
[Description:]
|
||||
|
||||
The {oxdna_fene} bond style uses the potential
|
||||
|
||||
:c,image(Eqs/bond_oxdna_fene.jpg)
|
||||
|
||||
to define a modified finite extensible nonlinear elastic (FENE) potential
|
||||
"(Ouldridge)"_#oxdna_fene to model the connectivity of the phosphate backbone
|
||||
in the oxDNA force field for coarse-grained modelling of DNA.
|
||||
|
||||
The following coefficients must be defined for the bond type via the
|
||||
"bond_coeff"_bond_coeff.html command as given in the above example, or in
|
||||
the data file or restart files read by the "read_data"_read_data.html
|
||||
or "read_restart"_read_restart.html commands:
|
||||
|
||||
epsilon (energy)
|
||||
Delta (distance)
|
||||
r0 (distance) :ul
|
||||
|
||||
NOTE: This bond style has to be used together with the corresponding oxDNA pair styles
|
||||
for excluded volume interaction {oxdna_excv}, stacking {oxdna_stk}, cross-stacking {oxdna_xstk}
|
||||
and coaxial stacking interaction {oxdna_coaxstk} as well as hydrogen-bonding interaction {oxdna_hbond} (see also documentation of
|
||||
"pair_style oxdna_excv"_pair_oxdna_excv.html). The coefficients
|
||||
in the above example have to be kept fixed and cannot be changed without reparametrizing the entire model.
|
||||
|
||||
Example input and data files can be found in /examples/USER/cgdna/examples/duplex1/ and /duplex2/.
|
||||
A simple python setup tool which creates single straight or helical DNA strands,
|
||||
DNA duplexes or arrays of DNA duplexes can be found in /examples/USER/cgdna/util/.
|
||||
A technical report with more information on the model, the structure of the input file,
|
||||
the setup tool and the performance of the LAMMPS-implementation of oxDNA
|
||||
can be found "here"_PDF/USER-CGDNA-overview.pdf.
|
||||
|
||||
:line
|
||||
|
||||
[Restrictions:]
|
||||
|
||||
This bond style can only be used if LAMMPS was built with the
|
||||
USER-CGDNA package and the MOLECULE and ASPHERE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
|
||||
[Related commands:]
|
||||
|
||||
"pair_style oxdna_excv"_pair_oxdna_excv.html, "fix nve/dotc/langevin"_fix_nve_dotc_langevin.html, "bond_coeff"_bond_coeff.html
|
||||
|
||||
[Default:] none
|
||||
|
||||
:line
|
||||
|
||||
:link(oxdna_fene)
|
||||
[(Ouldridge)] T.E. Ouldridge, A.A. Louis, J.P.K. Doye, J. Chem. Phys. 134, 085101 (2011).
|
||||
@ -99,7 +99,7 @@ more instructions on how to use the accelerated styles effectively.
|
||||
[Restrictions:]
|
||||
|
||||
This bond style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
MOLECULE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
The {quartic} style requires that "special_bonds"_special_bonds.html
|
||||
|
||||
@ -144,7 +144,7 @@ more instructions on how to use the accelerated styles effectively.
|
||||
[Restrictions:]
|
||||
|
||||
This bond style can only be used if LAMMPS was built with the
|
||||
MOLECULE package (which it is by default). See the "Making
|
||||
MOLECULE package. See the "Making
|
||||
LAMMPS"_Section_start.html#start_3 section for more info on packages.
|
||||
|
||||
[Related commands:]
|
||||
|
||||
@ -15,6 +15,7 @@ Bond Styles :h1
|
||||
bond_morse
|
||||
bond_none
|
||||
bond_nonlinear
|
||||
bond_oxdna_fene
|
||||
bond_quartic
|
||||
bond_table
|
||||
bond_zero
|
||||
|
||||
@ -37,6 +37,7 @@ Commands :h1
|
||||
dump_image
|
||||
dump_modify
|
||||
dump_molfile
|
||||
dump_nc
|
||||
echo
|
||||
fix
|
||||
fix_modify
|
||||
@ -90,6 +91,7 @@ Commands :h1
|
||||
suffix
|
||||
tad
|
||||
temper
|
||||
temper_grem
|
||||
thermo
|
||||
thermo_modify
|
||||
thermo_style
|
||||
|
||||
@ -51,12 +51,12 @@ relative to the center of mass (COM) velocity of the 2 atoms in the
|
||||
bond.
|
||||
|
||||
The value {engvib} is the vibrational kinetic energy of the two atoms
|
||||
in the bond, which is simply 1/2 m1 v1^2 + 1/2 m1 v2^2, where v1 and
|
||||
in the bond, which is simply 1/2 m1 v1^2 + 1/2 m2 v2^2, where v1 and
|
||||
v2 are the magnitude of the velocity of the 2 atoms along the bond
|
||||
direction, after the COM velocity has been subtracted from each.
|
||||
|
||||
The value {engrot} is the rotationsl kinetic energy of the two atoms
|
||||
in the bond, which is simply 1/2 m1 v1^2 + 1/2 m1 v2^2, where v1 and
|
||||
in the bond, which is simply 1/2 m1 v1^2 + 1/2 m2 v2^2, where v1 and
|
||||
v2 are the magnitude of the velocity of the 2 atoms perpendicular to
|
||||
the bond direction, after the COM velocity has been subtracted from
|
||||
each.
|
||||
@ -67,7 +67,7 @@ Vcm^2 where Vcm = magnitude of the velocity of the COM.
|
||||
|
||||
Note that these 3 kinetic energy terms are simply a partitioning of
|
||||
the summed kinetic energy of the 2 atoms themselves. I.e. total KE =
|
||||
1/2 m1 v1^2 + 1/2 m2 v3^2 = engvib + engrot + engtrans, where v1,v2
|
||||
1/2 m1 v1^2 + 1/2 m2 v2^2 = engvib + engrot + engtrans, where v1,v2
|
||||
are the magnitude of the velocities of the 2 atoms, without any
|
||||
adjustment for the COM velocity.
|
||||
|
||||
|
||||
@ -114,7 +114,7 @@ local defects surrounding the central atom, as described above. For
|
||||
the {axes yes} case, the vector components are also unitless, since
|
||||
they represent spatial directions.
|
||||
|
||||
Here are typical centro-symmetry values, from a a nanoindentation
|
||||
Here are typical centro-symmetry values, from a nanoindentation
|
||||
simulation into gold (FCC). These were provided by Jon Zimmerman
|
||||
(Sandia):
|
||||
|
||||
|
||||
@ -536,7 +536,7 @@ For the {bin/cylinder} style the details are as follows. If {discard}
|
||||
is set to {yes}, an out-of-domain atom will have its chunk ID set to
|
||||
0. If {discard} is set to {no}, the atom will have its chunk ID set
|
||||
to the first or last bin in both the radial and axis dimensions. If
|
||||
{discard} is set to {mixed}, which is the default, the the radial
|
||||
{discard} is set to {mixed}, which is the default, the radial
|
||||
dimension is treated the same as for {discard} = no. But for the axis
|
||||
dimensinon, it will only have its chunk ID set to the first or last
|
||||
bin if bins extend to the simulation box boundary in the axis
|
||||
@ -641,7 +641,8 @@ the restarted simulation begins.
|
||||
|
||||
[Related commands:]
|
||||
|
||||
"fix ave/chunk"_fix_ave_chunk.html
|
||||
"fix ave/chunk"_fix_ave_chunk.html,
|
||||
"compute global/atom"_compute_global_atom.html
|
||||
|
||||
[Default:]
|
||||
|
||||
|
||||
@ -37,7 +37,7 @@ The neighbor list needed to compute this quantity is constructed each
|
||||
time the calculation is performed (i.e. each time a snapshot of atoms
|
||||
is dumped). Thus it can be inefficient to compute/dump this quantity
|
||||
too frequently or to have multiple compute/dump commands, each of a
|
||||
{clsuter/atom} style.
|
||||
{cluster/atom} style.
|
||||
|
||||
NOTE: If you have a bonded system, then the settings of
|
||||
"special_bonds"_special_bonds.html command can remove pairwise
|
||||
|
||||
@ -10,34 +10,43 @@ compute coord/atom command :h3
|
||||
|
||||
[Syntax:]
|
||||
|
||||
compute ID group-ID coord/atom cutoff type1 type2 ... :pre
|
||||
compute ID group-ID coord/atom cstyle args ... :pre
|
||||
|
||||
ID, group-ID are documented in "compute"_compute.html command
|
||||
coord/atom = style name of this compute command
|
||||
cutoff = distance within which to count coordination neighbors (distance units)
|
||||
typeN = atom type for Nth coordination count (see asterisk form below) :ul
|
||||
ID, group-ID are documented in "compute"_compute.html command :ulb,l
|
||||
coord/atom = style name of this compute command :l
|
||||
cstyle = {cutoff} or {orientorder} :l
|
||||
{cutoff} args = cutoff typeN
|
||||
cutoff = distance within which to count coordination neighbors (distance units)
|
||||
typeN = atom type for Nth coordination count (see asterisk form below)
|
||||
{orientorder} args = orientorderID threshold
|
||||
orientorderID = ID of an orientorder/atom compute
|
||||
threshold = minimum value of the product of two "connected" atoms :pre
|
||||
:ule
|
||||
|
||||
[Examples:]
|
||||
|
||||
compute 1 all coord/atom 2.0
|
||||
compute 1 all coord/atom 6.0 1 2
|
||||
compute 1 all coord/atom 6.0 2*4 5*8 * :pre
|
||||
compute 1 all coord/atom cutoff 2.0
|
||||
compute 1 all coord/atom cutoff 6.0 1 2
|
||||
compute 1 all coord/atom cutoff 6.0 2*4 5*8 *
|
||||
compute 1 all coord/atom orientorder 2 0.5 :pre
|
||||
|
||||
[Description:]
|
||||
|
||||
Define a computation that calculates one or more coordination numbers
|
||||
for each atom in a group.
|
||||
This compute performs calculations between neighboring atoms to
|
||||
determine a coordination value. The specific calculation and the
|
||||
meaning of the resulting value depend on the {cstyle} keyword used.
|
||||
|
||||
A coordination number is defined as the number of neighbor atoms with
|
||||
specified atom type(s) that are within the specified cutoff distance
|
||||
from the central atom. Atoms not in the group are included in a
|
||||
coordination number of atoms in the group.
|
||||
The {cutoff} cstyle calculates one or more traditional coordination
|
||||
numbers for each atom. A coordination number is defined as the number
|
||||
of neighbor atoms with specified atom type(s) that are within the
|
||||
specified cutoff distance from the central atom. Atoms not in the
|
||||
specified group are included in the coordination number tally.
|
||||
|
||||
The {typeN} keywords allow you to specify which atom types contribute
|
||||
to each coordination number. One coordination number is computed for
|
||||
each of the {typeN} keywords listed. If no {typeN} keywords are
|
||||
listed, a single coordination number is calculated, which includes
|
||||
atoms of all types (same as the "*" format, see below).
|
||||
The {typeN} keywords allow specification of which atom types
|
||||
contribute to each coordination number. One coordination number is
|
||||
computed for each of the {typeN} keywords listed. If no {typeN}
|
||||
keywords are listed, a single coordination number is calculated, which
|
||||
includes atoms of all types (same as the "*" format, see below).
|
||||
|
||||
The {typeN} keywords can be specified in one of two ways. An explicit
|
||||
numeric value can be used, as in the 2nd example above. Or a
|
||||
@ -49,8 +58,27 @@ from 1 to N. A leading asterisk means all types from 1 to n
|
||||
(inclusive). A middle asterisk means all types from m to n
|
||||
(inclusive).
|
||||
|
||||
The value of all coordination numbers will be 0.0 for atoms not in the
|
||||
specified compute group.
|
||||
The {orientorder} cstyle calculates the number of "connected" neighbor
|
||||
atoms J around each central atom I. For this {cstyle}, connected is
|
||||
defined by the orientational order parameter calculated by the
|
||||
"compute orientorder/atom"_compute_orientorder_atom.html command.
|
||||
This {cstyle} thus allows one to apply the ten Wolde's criterion to
|
||||
identify crystal-like atoms in a system, as discussed in "ten
|
||||
Wolde"_#tenWolde.
|
||||
|
||||
The ID of the previously specified "compute
|
||||
orientorder/atom"_compute_orientorder/atom command is specified as
|
||||
{orientorderID}. The compute must invoke its {components} option to
|
||||
calculate components of the {Ybar_lm} vector for each atoms, as
|
||||
described in its documenation. Note that orientorder/atom compute
|
||||
defines its own criteria for identifying neighboring atoms. If the
|
||||
scalar product ({Ybar_lm(i)},{Ybar_lm(j)}), calculated by the
|
||||
orientorder/atom compute is larger than the specified {threshold},
|
||||
then I and J are connected, and the coordination value of I is
|
||||
incremented by one.
|
||||
|
||||
For all {cstyle} settings, all coordination values will be 0.0 for
|
||||
atoms not in the specified compute group.
|
||||
|
||||
The neighbor list needed to compute this quantity is constructed each
|
||||
time the calculation is performed (i.e. each time a snapshot of atoms
|
||||
@ -72,11 +100,16 @@ the neighbor list.
|
||||
|
||||
[Output info:]
|
||||
|
||||
If single {type1} keyword is specified (or if none are specified),
|
||||
this compute calculates a per-atom vector. If multiple {typeN}
|
||||
keywords are specified, this compute calculates a per-atom array, with
|
||||
N columns. These values can be accessed by any command that uses
|
||||
per-atom values from a compute as input. See "Section
|
||||
For {cstyle} cutoff, this compute can calculate a per-atom vector or
|
||||
array. If single {type1} keyword is specified (or if none are
|
||||
specified), this compute calculates a per-atom vector. If multiple
|
||||
{typeN} keywords are specified, this compute calculates a per-atom
|
||||
array, with N columns.
|
||||
|
||||
For {cstyle} orientorder, this compute calculates a per-atom vector.
|
||||
|
||||
These values can be accessed by any command that uses per-atom values
|
||||
from a compute as input. See "Section
|
||||
6.15"_Section_howto.html#howto_15 for an overview of LAMMPS output
|
||||
options.
|
||||
|
||||
@ -88,5 +121,12 @@ explained above.
|
||||
[Related commands:]
|
||||
|
||||
"compute cluster/atom"_compute_cluster_atom.html
|
||||
"compute orientorder/atom"_compute_orientorder_atom.html
|
||||
|
||||
[Default:] none
|
||||
|
||||
:line
|
||||
|
||||
:link(tenWolde)
|
||||
[(tenWolde)] P. R. ten Wolde, M. J. Ruiz-Montero, D. Frenkel,
|
||||
J. Chem. Phys. 104, 9932 (1996).
|
||||
|
||||
@ -236,7 +236,7 @@ LAMMPS"_Section_start.html#start_3 section for more info.
|
||||
[Related commands:]
|
||||
|
||||
"fix adapt/fep"_fix_adapt_fep.html, "fix ave/time"_fix_ave_time.html,
|
||||
"pair_lj_soft_coul_soft"_pair_lj_soft_coul_soft.txt
|
||||
"pair_style lj/soft/coul/soft"_pair_lj_soft.html
|
||||
|
||||
[Default:]
|
||||
|
||||
|
||||