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lammps/examples/PACKAGES/pimd_bosonic/harmonic_trap_langevin/log.lammps.0

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LAMMPS (4 Feb 2025)
Processor partition = 0
# Units and dimensions
units electron
dimension 3
boundary p p p
atom_style atomic
atom_modify map yes
pair_style none
# Time step (in femtoseconds)
timestep 0.5
# Temperature (in Kelvin)
variable Temp equal 17.4
# Force constant (in Hartree energies per Bohr radius squared)
variable k equal 1.2154614120000001e-08
# Number of beads
variable Nbeads equal 4
variable ibead uloop ${Nbeads} pad
variable ibead uloop 4 pad
variable seed equal 18889
# Create box and atoms. All distances are in Bohr
region box block -1500 1500 -1500 1500 -1500 1500
create_box 1 box
Created orthogonal box = (-1500 -1500 -1500) to (1500 1500 1500)
1 by 1 by 1 MPI processor grid
variable a loop 3
label loop
variable x1 equal -15.0+0.5*v_a
variable y1 equal 10.0-0.5*v_a
variable z1 equal 1+0.5*v_a
create_atoms 1 single ${x1} ${y1} ${z1}
create_atoms 1 single -14.5 ${y1} ${z1}
create_atoms 1 single -14.5 9.5 ${z1}
create_atoms 1 single -14.5 9.5 1.5
Created 1 atoms
using lattice units in orthogonal box = (-1500 -1500 -1500) to (1500 1500 1500)
create_atoms CPU = 0.000 seconds
next a
jump SELF loop
variable x1 equal -15.0+0.5*v_a
variable y1 equal 10.0-0.5*v_a
variable z1 equal 1+0.5*v_a
create_atoms 1 single ${x1} ${y1} ${z1}
create_atoms 1 single -14 ${y1} ${z1}
create_atoms 1 single -14 9 ${z1}
create_atoms 1 single -14 9 2
Created 1 atoms
using lattice units in orthogonal box = (-1500 -1500 -1500) to (1500 1500 1500)
create_atoms CPU = 0.000 seconds
next a
jump SELF loop
variable x1 equal -15.0+0.5*v_a
variable y1 equal 10.0-0.5*v_a
variable z1 equal 1+0.5*v_a
create_atoms 1 single ${x1} ${y1} ${z1}
create_atoms 1 single -13.5 ${y1} ${z1}
create_atoms 1 single -13.5 8.5 ${z1}
create_atoms 1 single -13.5 8.5 2.5
Created 1 atoms
using lattice units in orthogonal box = (-1500 -1500 -1500) to (1500 1500 1500)
create_atoms CPU = 0.000 seconds
next a
jump SELF loop
# Electron mass (in amu)
mass 1 0.00054858
# Initialize velocities
velocity all create ${Temp} ${seed}${ibead} mom yes rot yes dist gaussian
velocity all create 17.4 ${seed}${ibead} mom yes rot yes dist gaussian
velocity all create 17.4 18889${ibead} mom yes rot yes dist gaussian
velocity all create 17.4 188891 mom yes rot yes dist gaussian
# Add harmonic external force
fix harm all spring/self ${k}
fix harm all spring/self 1.215461412e-08
# Add harmonic potential energy to total energy and potential energy
fix_modify harm energy yes
# PIMD command
fix pimdb all pimd/langevin/bosonic ensemble nvt temp ${Temp} thermostat PILE_L 12345 tau 50 fixcom no
fix pimdb all pimd/langevin/bosonic ensemble nvt temp 17.4 thermostat PILE_L 12345 tau 50 fixcom no
# Outputs
variable prim_kinetic equal f_pimdb[5]
variable virial equal f_pimdb[6]
thermo_style custom step pe v_virial v_prim_kinetic
thermo 1
run 100
Initializing PI Langevin equation thermostat...
Bead ID | omega | tau | c1 | c2
0 9.11206647e-03 5.00000000e+01 9.95012479e-01 9.97505201e-02
1 9.11206647e-03 5.00000000e+01 9.95012479e-01 9.97505201e-02
2 9.11206647e-03 5.00000000e+01 9.95012479e-01 9.97505201e-02
3 9.11206647e-03 5.00000000e+01 9.95012479e-01 9.97505201e-02
PILE_L thermostat successfully initialized!
WARNING: No pairwise cutoff or binsize set. Atom sorting therefore disabled. (../atom.cpp:2444)
WARNING: Communication cutoff is 0.0. No ghost atoms will be generated. Atoms may get lost. (../comm_brick.cpp:212)
Per MPI rank memory allocation (min/avg/max) = 2.801 | 2.801 | 2.801 Mbytes
Step PotEng v_virial v_prim_kinetic
0 0 1.3661449e-08 0.0009918329
1 1.3158398e-09 1.8742641e-09 0.00099182267
2 5.0818396e-09 7.1801177e-09 0.00099180053
3 1.2446727e-08 1.4372388e-08 0.00099176038
4 2.1754941e-08 3.1274072e-08 0.00099170266
5 3.2927703e-08 5.2470231e-08 0.00099162511
6 4.7293056e-08 7.2301291e-08 0.00099153
7 6.526455e-08 9.5440683e-08 0.00099141194
8 8.6974168e-08 1.1669162e-07 0.00099127168
9 1.1249595e-07 1.3551097e-07 0.00099109846
10 1.4190482e-07 1.6050328e-07 0.00099089759
11 1.7313555e-07 1.8645705e-07 0.0009906735
12 2.0672874e-07 2.1181418e-07 0.00099042271
13 2.4042615e-07 2.4218941e-07 0.00099012073
14 2.7524432e-07 2.7507982e-07 0.00098977876
15 3.1513375e-07 3.1771012e-07 0.00098940169
16 3.6161087e-07 3.6075963e-07 0.00098900826
17 4.0813191e-07 4.0059005e-07 0.00098859985
18 4.5194598e-07 4.3883585e-07 0.00098817535
19 4.9898075e-07 4.8036287e-07 0.00098770764
20 5.5458728e-07 5.2362451e-07 0.00098721266
21 6.1220768e-07 5.7705077e-07 0.00098670407
22 6.6573849e-07 6.3271105e-07 0.00098617081
23 7.2475089e-07 6.9382916e-07 0.00098557406
24 7.804837e-07 7.5979853e-07 0.0009849612
25 8.3194987e-07 8.232213e-07 0.00098434971
26 8.8723792e-07 8.9901705e-07 0.0009836645
27 9.3837241e-07 9.7033126e-07 0.0009830068
28 9.897077e-07 1.0444697e-06 0.00098229311
29 1.043431e-06 1.1208219e-06 0.00098150213
30 1.0900368e-06 1.1899315e-06 0.00098077686
31 1.1303314e-06 1.2560026e-06 0.00098003518
32 1.1725968e-06 1.3287355e-06 0.00097921099
33 1.2081344e-06 1.399856e-06 0.0009784037
34 1.2449387e-06 1.4769272e-06 0.00097754491
35 1.2852285e-06 1.5642459e-06 0.00097667479
36 1.3234189e-06 1.6571388e-06 0.00097572641
37 1.3666391e-06 1.7603492e-06 0.00097475881
38 1.4102743e-06 1.8666516e-06 0.00097373763
39 1.454172e-06 1.9696572e-06 0.0009727081
40 1.5031422e-06 2.0910539e-06 0.00097155807
41 1.5538491e-06 2.2198868e-06 0.00097030871
42 1.6079193e-06 2.3576614e-06 0.00096896762
43 1.6637051e-06 2.496284e-06 0.00096760456
44 1.7189714e-06 2.637657e-06 0.00096619083
45 1.7656688e-06 2.795845e-06 0.00096470693
46 1.8092153e-06 2.9727162e-06 0.00096303835
47 1.8415769e-06 3.1451673e-06 0.00096140406
48 1.8664597e-06 3.3241907e-06 0.00095971129
49 1.8940033e-06 3.5094834e-06 0.00095790964
50 1.9211844e-06 3.7049195e-06 0.00095603039
51 1.9533838e-06 3.9139587e-06 0.0009540918
52 1.9833776e-06 4.1289537e-06 0.0009520767
53 2.0106231e-06 4.3481079e-06 0.00095003676
54 2.0429292e-06 4.5702968e-06 0.00094802906
55 2.0747842e-06 4.7928135e-06 0.00094600351
56 2.1043981e-06 5.0253448e-06 0.0009438419
57 2.1474343e-06 5.2569331e-06 0.00094169256
58 2.2115003e-06 5.4997767e-06 0.00093948055
59 2.2773037e-06 5.7547729e-06 0.00093714003
60 2.3402972e-06 6.0074589e-06 0.00093480857
61 2.4107157e-06 6.2647899e-06 0.00093244785
62 2.4953095e-06 6.5384938e-06 0.00092998209
63 2.58923e-06 6.8124372e-06 0.00092751453
64 2.682021e-06 7.0913777e-06 0.00092505171
65 2.7538688e-06 7.3773956e-06 0.00092256944
66 2.8444661e-06 7.6811232e-06 0.00091984092
67 2.9532286e-06 7.9951107e-06 0.0009170037
68 3.0551339e-06 8.3096758e-06 0.00091414977
69 3.1625164e-06 8.6232285e-06 0.00091137219
70 3.2717759e-06 8.9388929e-06 0.00090857909
71 3.3924986e-06 9.2524846e-06 0.00090583473
72 3.5236727e-06 9.5688611e-06 0.00090308342
73 3.6440162e-06 9.8873586e-06 0.00090026584
74 3.7692169e-06 1.0203245e-05 0.00089755256
75 3.8946044e-06 1.0523755e-05 0.00089485804
76 4.0498738e-06 1.0848398e-05 0.00089217189
77 4.2099346e-06 1.1164286e-05 0.00088956967
78 4.3589564e-06 1.1466652e-05 0.00088700311
79 4.5069481e-06 1.177381e-05 0.00088439373
80 4.6635354e-06 1.2059606e-05 0.00088199635
81 4.8398269e-06 1.233837e-05 0.0008797438
82 5.0191539e-06 1.261531e-05 0.00087745162
83 5.205285e-06 1.2899972e-05 0.00087506863
84 5.3708116e-06 1.3160246e-05 0.00087288444
85 5.5534416e-06 1.3438712e-05 0.00087052617
86 5.7613e-06 1.372546e-05 0.00086818634
87 5.9645662e-06 1.4017631e-05 0.00086572407
88 6.1830289e-06 1.4328439e-05 0.000862992
89 6.423646e-06 1.4640964e-05 0.00086017364
90 6.688219e-06 1.4978644e-05 0.0008570595
91 6.9305603e-06 1.5307214e-05 0.00085411601
92 7.1857573e-06 1.5649328e-05 0.00085112325
93 7.4653538e-06 1.6015833e-05 0.0008479391
94 7.8132911e-06 1.6393131e-05 0.00084474237
95 8.1540941e-06 1.674573e-05 0.00084165639
96 8.4943231e-06 1.7094435e-05 0.00083858996
97 8.8504733e-06 1.7451741e-05 0.00083536142
98 9.2042324e-06 1.780703e-05 0.00083221292
99 9.5058078e-06 1.8141862e-05 0.00082913227
100 9.8087647e-06 1.8457846e-05 0.00082619877
Loop time of 0.122922 on 1 procs for 100 steps with 3 atoms
Performance: 35144210.362 fs/day, 0.000 hours/fs, 813.523 timesteps/s, 2.441 katom-step/s
70.1% 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 | 0 | 0 | 0.0 | 0.00
Neigh | 1.1593e-05 | 1.1593e-05 | 1.1593e-05 | 0.0 | 0.01
Comm | 9.2183e-05 | 9.2183e-05 | 9.2183e-05 | 0.0 | 0.07
Output | 0.023243 | 0.023243 | 0.023243 | 0.0 | 18.91
Modify | 0.099386 | 0.099386 | 0.099386 | 0.0 | 80.85
Other | | 0.0001896 | | | 0.15
Nlocal: 3 ave 3 max 3 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Nghost: 0 ave 0 max 0 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Neighs: 0 ave 0 max 0 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Total # of neighbors = 0
Ave neighs/atom = 0
Neighbor list builds = 33
Dangerous builds = 0