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update gcmc example to use fix rigid/small

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This commit is contained in:
Axel Kohlmeyer
2021-04-01 08:23:10 -04:00
parent 7699fb3708
commit f48af95d49
3 changed files with 220 additions and 220 deletions
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48
examples/gcmc/in.gcmc.co2
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# GCMC for CO2 molecular fluid, rigid/small/nvt dynamics
# GCMC for CO2 molecular fluid, rigid/small dynamics
# Rigid CO2 TraPPE model
# [Potoff and J.I. Siepmann, Vapor-liquid equilibria of
# mixtures containing alkanes, carbon dioxide and
@ -7,7 +7,7 @@
# variables available on command line
variable mu index -8.1
variable disp index 0.5
variable disp index 0.5
variable temp index 338.0
variable lbox index 10.0
variable spacing index 5.0
@ -17,7 +17,7 @@ variable spacing index 5.0
units real
atom_style full
boundary p p p
pair_style lj/cut/coul/long 14
pair_style lj/cut/coul/long 14
pair_modify mix arithmetic tail yes
kspace_style ewald 0.0001
bond_style harmonic
@ -25,7 +25,7 @@ angle_style harmonic
# box, start molecules on simple cubic lattice
lattice sc ${spacing}
lattice sc ${spacing}
region box block 0 ${lbox} 0 ${lbox} 0 ${lbox} units box
create_box 2 box &
bond/types 1 &
@ -34,56 +34,56 @@ create_box 2 box &
extra/angle/per/atom 1 &
extra/special/per/atom 2
molecule co2mol CO2.txt
create_atoms 0 box mol co2mol 464563 units box
# rigid CO2 TraPPE model
create_atoms 0 box mol co2mol 464563 units box
# rigid CO2 TraPPE model
pair_coeff 1 1 0.053649 2.8
pair_coeff 2 2 0.156973 3.05
bond_coeff 1 0 1.16
angle_coeff 1 0 180
pair_coeff 2 2 0.156973 3.05
bond_coeff 1 0 1.16
angle_coeff 1 0 180
# masses
mass 1 12.0107
mass 2 15.9994
mass 1 12.0107
mass 2 15.9994
# MD settings
group co2 type 1 2
neighbor 2.0 bin
neigh_modify every 1 delay 10 check yes
velocity all create ${temp} 54654
velocity all create ${temp} 54654
timestep 1.0
# rigid constraints with thermostat
# rigid constraints with thermostat
fix myrigidnvt co2 rigid/nvt/small molecule temp ${temp} ${temp} 100 mol co2mol
fix myrigid co2 rigid/small molecule mol co2mol
# dynamically update fix rigid/nvt/small temperature ndof
fix_modify myrigidnvt dynamic/dof yes
fix_modify myrigid dynamic/dof yes
# gcmc
variable tfac equal 5.0/3.0 # (3 trans + 2 rot)/(3 trans)
fix mygcmc co2 gcmc 100 100 0 0 54341 ${temp} ${mu} ${disp} mol &
co2mol tfac_insert ${tfac} group co2 rigid myrigidnvt
co2mol tfac_insert ${tfac} group co2 rigid myrigid
# atom counts
variable carbon atom "type==1"
variable carbon atom "type==1"
variable oxygen atom "type==2"
group carbon dynamic co2 var carbon
group oxygen dynamic co2 var oxygen
group carbon dynamic co2 var carbon
group oxygen dynamic co2 var oxygen
variable nC equal count(carbon)
variable nO equal count(oxygen)
# output
variable tacc equal f_mygcmc[2]/(f_mygcmc[1]+0.1)
variable iacc equal f_mygcmc[4]/(f_mygcmc[3]+0.1)
variable dacc equal f_mygcmc[6]/(f_mygcmc[5]+0.1)
variable racc equal f_mygcmc[8]/(f_mygcmc[7]+0.1)
variable tacc equal f_mygcmc[2]/(f_mygcmc[1]+0.1)
variable iacc equal f_mygcmc[4]/(f_mygcmc[3]+0.1)
variable dacc equal f_mygcmc[6]/(f_mygcmc[5]+0.1)
variable racc equal f_mygcmc[8]/(f_mygcmc[7]+0.1)
# dynamically update default temperature ndof
compute_modify thermo_temp dynamic/dof yes

196
examples/gcmc/log.27Nov18.gcmc.co2.g++.1
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LAMMPS (27 Nov 2018)
using 1 OpenMP thread(s) per MPI task
# GCMC for CO2 molecular fluid, rigid/small/nvt dynamics
# Rigid CO2 TraPPE model
# [Potoff and J.I. Siepmann, Vapor-liquid equilibria of
# mixtures containing alkanes, carbon dioxide and
# nitrogen AIChE J., 47,1676-1682 (2001)].
# variables available on command line
variable mu index -8.1
variable disp index 0.5
variable temp index 338.0
variable lbox index 10.0
variable spacing index 5.0
# global model settings
units real
atom_style full
boundary p p p
pair_style lj/cut/coul/long 14
pair_modify mix arithmetic tail yes
kspace_style ewald 0.0001
bond_style harmonic
angle_style harmonic
# box, start molecules on simple cubic lattice
lattice sc ${spacing}
lattice sc 5.0
Lattice spacing in x,y,z = 5 5 5
region box block 0 ${lbox} 0 ${lbox} 0 ${lbox} units box
region box block 0 10.0 0 ${lbox} 0 ${lbox} units box
region box block 0 10.0 0 10.0 0 ${lbox} units box
region box block 0 10.0 0 10.0 0 10.0 units box
create_box 2 box bond/types 1 angle/types 1 extra/bond/per/atom 2 extra/angle/per/atom 1 extra/special/per/atom 2
Created orthogonal box = (0 0 0) to (10 10 10)
1 by 1 by 1 MPI processor grid
molecule co2mol CO2.txt
Read molecule co2mol:
3 atoms with max type 2
2 bonds with max type 1
1 angles with max type 1
0 dihedrals with max type 0
0 impropers with max type 0
create_atoms 0 box mol co2mol 464563 units box
Created 24 atoms
Time spent = 0.00134993 secs
# rigid CO2 TraPPE model
pair_coeff 1 1 0.053649 2.8
pair_coeff 2 2 0.156973 3.05
bond_coeff 1 0 1.16
angle_coeff 1 0 180
# masses
mass 1 12.0107
mass 2 15.9994
# MD settings
group co2 type 1 2
24 atoms in group co2
neighbor 2.0 bin
neigh_modify every 1 delay 10 check yes
velocity all create ${temp} 54654
velocity all create 338.0 54654
timestep 1.0
# rigid constraints with thermostat
fix myrigidnvt co2 rigid/nvt/small molecule temp ${temp} ${temp} 100 mol co2mol
fix myrigidnvt co2 rigid/nvt/small molecule temp 338.0 ${temp} 100 mol co2mol
fix myrigidnvt co2 rigid/nvt/small molecule temp 338.0 338.0 100 mol co2mol
8 rigid bodies with 24 atoms
1.16 = max distance from body owner to body atom
# dynamically update fix rigid/nvt/small temperature ndof
fix_modify myrigidnvt dynamic/dof yes
# gcmc
variable tfac equal 5.0/3.0 # (3 trans + 2 rot)/(3 trans)
fix mygcmc co2 gcmc 100 100 0 0 54341 ${temp} ${mu} ${disp} mol co2mol tfac_insert ${tfac} group co2 rigid myrigidnvt
fix mygcmc co2 gcmc 100 100 0 0 54341 338.0 ${mu} ${disp} mol co2mol tfac_insert ${tfac} group co2 rigid myrigidnvt
fix mygcmc co2 gcmc 100 100 0 0 54341 338.0 -8.1 ${disp} mol co2mol tfac_insert ${tfac} group co2 rigid myrigidnvt
fix mygcmc co2 gcmc 100 100 0 0 54341 338.0 -8.1 0.5 mol co2mol tfac_insert ${tfac} group co2 rigid myrigidnvt
fix mygcmc co2 gcmc 100 100 0 0 54341 338.0 -8.1 0.5 mol co2mol tfac_insert 1.66666666666667 group co2 rigid myrigidnvt
# atom counts
variable carbon atom "type==1"
variable oxygen atom "type==2"
group carbon dynamic co2 var carbon
dynamic group carbon defined
group oxygen dynamic co2 var oxygen
dynamic group oxygen defined
variable nC equal count(carbon)
variable nO equal count(oxygen)
# output
variable tacc equal f_mygcmc[2]/(f_mygcmc[1]+0.1)
variable iacc equal f_mygcmc[4]/(f_mygcmc[3]+0.1)
variable dacc equal f_mygcmc[6]/(f_mygcmc[5]+0.1)
variable racc equal f_mygcmc[8]/(f_mygcmc[7]+0.1)
# dynamically update default temperature ndof
compute_modify thermo_temp dynamic/dof yes
thermo_style custom step temp press pe ke density atoms v_iacc v_dacc v_tacc v_racc v_nC v_nO
thermo 1000
# run
run 20000
Ewald initialization ...
using 12-bit tables for long-range coulomb (src/kspace.cpp:321)
G vector (1/distance) = 0.164636
estimated absolute RMS force accuracy = 0.0332064
estimated relative force accuracy = 0.0001
KSpace vectors: actual max1d max3d = 16 2 62
kxmax kymax kzmax = 2 2 2
WARNING: Fix gcmc using full_energy option (src/MC/fix_gcmc.cpp:487)
0 atoms in group FixGCMC:gcmc_exclusion_group:mygcmc
0 atoms in group FixGCMC:rotation_gas_atoms:mygcmc
WARNING: Neighbor exclusions used with KSpace solver may give inconsistent Coulombic energies (src/neighbor.cpp:471)
Neighbor list info ...
update every 1 steps, delay 10 steps, check yes
max neighbors/atom: 2000, page size: 100000
master list distance cutoff = 16
ghost atom cutoff = 16
binsize = 8, bins = 2 2 2
1 neighbor lists, perpetual/occasional/extra = 1 0 0
(1) pair lj/cut/coul/long, perpetual
attributes: half, newton on
pair build: half/bin/newton
stencil: half/bin/3d/newton
bin: standard
Per MPI rank memory allocation (min/avg/max) = 15.62 | 15.62 | 15.62 Mbytes
Step Temp Press PotEng KinEng Density Atoms v_iacc v_dacc v_tacc v_racc v_nC v_nO
0 364.27579 4238.8631 -9.6809388 13.391989 0.5846359 24 0 0 0 0 8 16
1000 267.9799 -73.919548 -3.6735999 5.8578459 0.36539744 15 0.23663972 0.2494423 0 0 5 10
2000 409.06596 -98.033864 -6.7570039 10.974131 0.43847693 18 0.29379544 0.29816284 0 0 6 12
3000 279.3225 -836.47758 -26.434976 15.819539 0.87695385 36 0.23798567 0.24203908 0 0 12 24
4000 333.6181 606.63478 -30.35312 18.894592 0.87695385 36 0.19121778 0.19481508 0 0 12 24
5000 405.98741 -103.97582 -14.180277 16.942399 0.65771539 27 0.15272841 0.15982952 0 0 9 18
6000 283.5835 -240.01076 -6.7198093 7.607777 0.43847693 18 0.1606796 0.16536735 0 0 6 12
7000 142.00717 154.95914 -0.74192319 0.98769159 0.14615898 6 0.19501993 0.20103405 0 0 2 4
8000 376.67702 -118.12474 -10.774631 13.847899 0.5846359 24 0.20133396 0.20468352 0 0 8 16
9000 305.43166 -1095.8633 -10.388279 9.7112935 0.51155641 21 0.19445239 0.19869334 0 0 7 14
10000 244.08225 -179.31274 -12.974988 8.9732748 0.5846359 24 0.19098971 0.19586397 0 0 8 16
11000 305.03389 -568.94714 -21.745425 14.244887 0.73079488 30 0.18517522 0.18978828 0 0 10 20
12000 318.29735 767.76579 -37.184231 21.189508 1.0231128 42 0.17256426 0.17580267 0 0 14 28
13000 411.21707 433.01125 -4.5149215 8.9889065 0.36539744 15 0.16329385 0.16767604 0 0 5 10
14000 304.29535 148.28607 -2.3505844 6.6516754 0.36539744 15 0.17435868 0.17897674 0 0 5 10
15000 338.00555 2384.1424 -21.438264 17.463859 0.80387436 33 0.17237066 0.17634112 0 0 11 22
16000 613.56062 610.93867 -0.057364228 1.2192718 0.073079488 3 0.17128158 0.1758886 0 0 1 2
17000 432.63323 -980.52384 -15.79844 18.054365 0.65771539 27 0.17145651 0.17504846 0 0 9 18
18000 181.74572 -352.81765 -1.8617959 2.1669979 0.21923846 9 0.17292463 0.17654774 0 0 3 6
19000 208.55292 -248.38735 -4.2287767 4.5588154 0.36539744 15 0.18168324 0.18454331 0 0 5 10
20000 304.73317 -649.9896 -16.532405 12.716924 0.65771539 27 0.18085983 0.18345574 0 0 9 18
Loop time of 21.0434 on 1 procs for 20000 steps with 27 atoms
Performance: 82.116 ns/day, 0.292 hours/ns, 950.415 timesteps/s
98.5% CPU use with 1 MPI tasks x 1 OpenMP threads
MPI task timing breakdown:
Section | min time | avg time | max time |%varavg| %total
---------------------------------------------------------------
Pair | 2.2373 | 2.2373 | 2.2373 | 0.0 | 10.63
Bond | 0.022895 | 0.022895 | 0.022895 | 0.0 | 0.11
Kspace | 0.16756 | 0.16756 | 0.16756 | 0.0 | 0.80
Neigh | 0.11436 | 0.11436 | 0.11436 | 0.0 | 0.54
Comm | 0.26988 | 0.26988 | 0.26988 | 0.0 | 1.28
Output | 0.0014684 | 0.0014684 | 0.0014684 | 0.0 | 0.01
Modify | 18.193 | 18.193 | 18.193 | 0.0 | 86.45
Other | | 0.03692 | | | 0.18
Nlocal: 27 ave 27 max 27 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Nghost: 2081 ave 2081 max 2081 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Neighs: 6264 ave 6264 max 6264 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Total # of neighbors = 6264
Ave neighs/atom = 232
Ave special neighs/atom = 2
Neighbor list builds = 20177
Dangerous builds = 0
Total wall time: 0:00:21

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examples/gcmc/log.31Mar21.gcmc.co2.g++.1 Normal file
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LAMMPS (10 Mar 2021)
using 1 OpenMP thread(s) per MPI task
# GCMC for CO2 molecular fluid, rigid/small dynamics
# Rigid CO2 TraPPE model
# [Potoff and J.I. Siepmann, Vapor-liquid equilibria of
# mixtures containing alkanes, carbon dioxide and
# nitrogen AIChE J., 47,1676-1682 (2001)].
# variables available on command line
variable mu index -8.1
variable disp index 0.5
variable temp index 338.0
variable lbox index 10.0
variable spacing index 5.0
# global model settings
units real
atom_style full
boundary p p p
pair_style lj/cut/coul/long 14
pair_modify mix arithmetic tail yes
kspace_style ewald 0.0001
bond_style harmonic
angle_style harmonic
# box, start molecules on simple cubic lattice
lattice sc ${spacing}
lattice sc 5.0
Lattice spacing in x,y,z = 5.0000000 5.0000000 5.0000000
region box block 0 ${lbox} 0 ${lbox} 0 ${lbox} units box
region box block 0 10.0 0 ${lbox} 0 ${lbox} units box
region box block 0 10.0 0 10.0 0 ${lbox} units box
region box block 0 10.0 0 10.0 0 10.0 units box
create_box 2 box bond/types 1 angle/types 1 extra/bond/per/atom 2 extra/angle/per/atom 1 extra/special/per/atom 2
Created orthogonal box = (0.0000000 0.0000000 0.0000000) to (10.000000 10.000000 10.000000)
1 by 1 by 1 MPI processor grid
molecule co2mol CO2.txt
Read molecule template co2mol:
1 molecules
3 atoms with max type 2
2 bonds with max type 1
1 angles with max type 1
0 dihedrals with max type 0
0 impropers with max type 0
create_atoms 0 box mol co2mol 464563 units box
Created 24 atoms
create_atoms CPU = 0.002 seconds
# rigid CO2 TraPPE model
pair_coeff 1 1 0.053649 2.8
pair_coeff 2 2 0.156973 3.05
bond_coeff 1 0 1.16
angle_coeff 1 0 180
# masses
mass 1 12.0107
mass 2 15.9994
# MD settings
group co2 type 1 2
24 atoms in group co2
neighbor 2.0 bin
neigh_modify every 1 delay 10 check yes
velocity all create ${temp} 54654
velocity all create 338.0 54654
timestep 1.0
# rigid constraints with thermostat
fix myrigid co2 rigid/small molecule mol co2mol
create bodies CPU = 0.000 seconds
8 rigid bodies with 24 atoms
1.1600000 = max distance from body owner to body atom
# dynamically update fix rigid/nvt/small temperature ndof
fix_modify myrigid dynamic/dof yes
# gcmc
variable tfac equal 5.0/3.0 # (3 trans + 2 rot)/(3 trans)
fix mygcmc co2 gcmc 100 100 0 0 54341 ${temp} ${mu} ${disp} mol co2mol tfac_insert ${tfac} group co2 rigid myrigid
fix mygcmc co2 gcmc 100 100 0 0 54341 338.0 ${mu} ${disp} mol co2mol tfac_insert ${tfac} group co2 rigid myrigid
fix mygcmc co2 gcmc 100 100 0 0 54341 338.0 -8.1 ${disp} mol co2mol tfac_insert ${tfac} group co2 rigid myrigid
fix mygcmc co2 gcmc 100 100 0 0 54341 338.0 -8.1 0.5 mol co2mol tfac_insert ${tfac} group co2 rigid myrigid
fix mygcmc co2 gcmc 100 100 0 0 54341 338.0 -8.1 0.5 mol co2mol tfac_insert 1.66666666666667 group co2 rigid myrigid
# atom counts
variable carbon atom "type==1"
variable oxygen atom "type==2"
group carbon dynamic co2 var carbon
dynamic group carbon defined
group oxygen dynamic co2 var oxygen
dynamic group oxygen defined
variable nC equal count(carbon)
variable nO equal count(oxygen)
# output
variable tacc equal f_mygcmc[2]/(f_mygcmc[1]+0.1)
variable iacc equal f_mygcmc[4]/(f_mygcmc[3]+0.1)
variable dacc equal f_mygcmc[6]/(f_mygcmc[5]+0.1)
variable racc equal f_mygcmc[8]/(f_mygcmc[7]+0.1)
# dynamically update default temperature ndof
compute_modify thermo_temp dynamic/dof yes
thermo_style custom step temp press pe ke density atoms v_iacc v_dacc v_tacc v_racc v_nC v_nO
thermo 1000
# run
run 20000
Ewald initialization ...
using 12-bit tables for long-range coulomb (src/kspace.cpp:339)
G vector (1/distance) = 0.16463644
estimated absolute RMS force accuracy = 0.033206372
estimated relative force accuracy = 0.0001
KSpace vectors: actual max1d max3d = 16 2 62
kxmax kymax kzmax = 2 2 2
WARNING: Fix gcmc using full_energy option (src/MC/fix_gcmc.cpp:482)
0 atoms in group FixGCMC:gcmc_exclusion_group:mygcmc
0 atoms in group FixGCMC:rotation_gas_atoms:mygcmc
WARNING: Neighbor exclusions used with KSpace solver may give inconsistent Coulombic energies (src/neighbor.cpp:486)
Neighbor list info ...
update every 1 steps, delay 10 steps, check yes
max neighbors/atom: 2000, page size: 100000
master list distance cutoff = 16
ghost atom cutoff = 16
binsize = 8, bins = 2 2 2
1 neighbor lists, perpetual/occasional/extra = 1 0 0
(1) pair lj/cut/coul/long, perpetual
attributes: half, newton on
pair build: half/bin/newton
stencil: half/bin/3d/newton
bin: standard
Per MPI rank memory allocation (min/avg/max) = 15.62 | 15.62 | 15.62 Mbytes
Step Temp Press PotEng KinEng Density Atoms v_iacc v_dacc v_tacc v_racc v_nC v_nO
0 364.27579 4238.8631 -9.6809388 13.391989 0.5846359 24 0 0 0 0 8 16
1000 261.50949 -204.60974 -9.6459249 8.3147747 0.51155641 21 0.096366192 0.097590121 0 0 7 14
2000 479.39697 231.28436 -7.0089345 10.47927 0.36539744 15 0.085531005 0.085453295 0 0 5 10
3000 318.31766 -433.17133 -7.3680951 8.5396005 0.43847693 18 0.078556687 0.080101462 0 0 6 12
4000 357.40776 -186.78 -16.453111 14.915105 0.65771539 27 0.082003877 0.08249082 0 0 9 18
5000 399.94731 1524.2909 -16.624678 18.677282 0.73079488 30 0.071285101 0.072731705 0 0 10 20
6000 354.71736 60.134827 -18.988979 16.565073 0.73079488 30 0.071615663 0.071713414 0 0 10 20
7000 483.32057 966.32174 -5.7393251 10.565037 0.36539744 15 0.087027775 0.089855826 0 0 5 10
8000 547.68562 494.96891 -4.125626 11.97201 0.36539744 15 0.11738082 0.11937373 0 0 5 10
9000 433.76488 390.91467 -0.85312985 5.1718828 0.21923846 9 0.13265238 0.13513212 0 0 3 6
10000 330.01685 -862.07457 -26.494645 18.690633 0.87695385 36 0.13775034 0.13905403 0 0 12 24
11000 334.26318 -578.48274 -13.236965 12.288625 0.5846359 24 0.13713936 0.13960485 0 0 8 16
12000 243.68657 -1244.7156 -25.757644 12.590645 0.80387436 33 0.1339588 0.13588739 0 0 11 22
13000 307.66758 -429.66928 -17.864639 14.367878 0.73079488 30 0.12604721 0.1278094 0 0 10 20
14000 330.91434 495.97112 -15.374248 13.809499 0.65771539 27 0.12011756 0.12145865 0 0 9 18
15000 564.87966 982.72332 -14.810525 26.379517 0.73079488 30 0.12164324 0.12343521 0 0 10 20
16000 342.63867 -54.776299 -2.2580523 5.7875978 0.29231795 12 0.13535812 0.13790758 0 0 4 8
17000 461.07005 -2.4317694 -1.145154 3.2068452 0.14615898 6 0.1444739 0.14730804 0 0 2 4
18000 197.21207 -40.124433 -7.0857418 5.2906654 0.43847693 18 0.14403997 0.14574329 0 0 6 12
19000 393.36395 -420.49802 -11.172739 14.461366 0.5846359 24 0.15005606 0.15142063 0 0 8 16
20000 356.48539 56.071962 -1.7861789 4.2504609 0.21923846 9 0.15422732 0.15627984 0 0 3 6
Loop time of 19.5982 on 1 procs for 20000 steps with 9 atoms
Performance: 88.171 ns/day, 0.272 hours/ns, 1020.502 timesteps/s
99.5% CPU use with 1 MPI tasks x 1 OpenMP threads
MPI task timing breakdown:
Section | min time | avg time | max time |%varavg| %total
---------------------------------------------------------------
Pair | 2.3404 | 2.3404 | 2.3404 | 0.0 | 11.94
Bond | 0.033919 | 0.033919 | 0.033919 | 0.0 | 0.17
Kspace | 0.19974 | 0.19974 | 0.19974 | 0.0 | 1.02
Neigh | 0.11478 | 0.11478 | 0.11478 | 0.0 | 0.59
Comm | 0.22538 | 0.22538 | 0.22538 | 0.0 | 1.15
Output | 0.00096536 | 0.00096536 | 0.00096536 | 0.0 | 0.00
Modify | 16.627 | 16.627 | 16.627 | 0.0 | 84.84
Other | | 0.05594 | | | 0.29
Nlocal: 9.00000 ave 9 max 9 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Nghost: 703.000 ave 703 max 703 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Neighs: 719.000 ave 719 max 719 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Total # of neighbors = 719
Ave neighs/atom = 79.888889
Ave special neighs/atom = 2.0000000
Neighbor list builds = 20196
Dangerous builds = 0
Total wall time: 0:00:19