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lammps/examples/srd/log.srd.pure.10Sep10.linux.4
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LAMMPS (1 Oct 2010)
# 2d SRD only test
units lj
atom_style atomic
atom_modify first empty
dimension 2
# create box with big lattice
lattice sq 0.4
Lattice spacing in x,y,z = 1.58114 1.58114 1.58114
region box block 0 10 0 10 -0.5 0.5
create_box 1 box
Created orthogonal box = (0 0 -0.790569) to (15.8114 15.8114 0.790569)
2 by 2 by 1 processor grid
# add SRD particles as hi density lattice
lattice sq 0.4
Lattice spacing in x,y,z = 1.58114 1.58114 1.58114
region plane block 0 10 0 10 -0.001 0.001
lattice sq 85.0
Lattice spacing in x,y,z = 0.108465 0.108465 0.108465
create_atoms 1 region plane
Created 21316 atoms
group empty type 2
0 atoms in group empty
mass 1 0.01
velocity all create 1.0 593849 loop geom
# settings - need dummy empty group to enable no communication
neighbor 0.3 bin
neigh_modify delay 1 every 1 check no
communicate single group empty
# timestep is big and SRD frequency is 1
timestep 0.02
fix 1 all srd 1 NULL 1.0 0.25 49894 collision slip
fix 2 all enforce2d
# diagnostics
thermo_style custom step temp f_1[7] etotal press f_1[3] f_1[4] f_1[6]
thermo 100
dump 1 all atom 250 dump.srd.pure
run 5000
SRD info:
SRD/big particles = 21316 0
big particle diameter max/min = 0 1e+20
SRD temperature & lamda = 1 0.2
SRD max distance & max velocity = 0.8 40
SRD grid counts: 63 63 1
SRD grid size: request, actual (xyz) = 0.25, 0.250974 0.250974 1.58114
SRD per actual grid cell = 5.37062
SRD viscosity = 0.439647
big/SRD mass density ratio = 0
# of rescaled SRD velocities = 0
ave/max all velocity = 13.2735 24.2873
Memory usage per processor = 1.31651 Mbytes
Step Temp 1[7] TotEng Press 1[3] 1[4] 1[6]
0 1 0 0.99995309 85.26 0 0 0
100 1 3969 0.99995309 85.26 0 0 0
200 1 3969 0.99995309 85.26 0 0 0
300 1 3969 0.99995309 85.26 0 0 0
400 1 3969 0.99995309 85.26 0 0 0
500 1 3969 0.99995309 85.26 0 0 0
600 1 3969 0.99995309 85.26 0 0 0
700 1 3969 0.99995309 85.26 0 0 0
800 1 3969 0.99995309 85.26 0 0 0
900 1 3969 0.99995309 85.26 0 0 0
1000 1 3969 0.99995309 85.26 0 0 0
1100 1 3969 0.99995309 85.26 0 0 0
1200 1 3969 0.99995309 85.26 0 0 0
1300 1 3969 0.99995309 85.26 0 0 0
1400 1 3969 0.99995309 85.26 0 0 0
1500 1 3969 0.99995309 85.26 0 0 0
1600 1 3969 0.99995309 85.26 0 0 0
1700 1 3969 0.99995309 85.26 0 0 0
1800 1 3969 0.99995309 85.26 0 0 0
1900 1 3969 0.99995309 85.26 0 0 0
2000 1 3969 0.99995309 85.26 0 0 0
2100 1 3969 0.99995309 85.26 0 0 0
2200 1 3969 0.99995309 85.26 0 0 0
2300 1 3969 0.99995309 85.26 0 0 0
2400 1 3969 0.99995309 85.26 0 0 0
2500 1 3969 0.99995309 85.26 0 0 0
2600 1 3969 0.99995309 85.26 0 0 0
2700 1 3969 0.99995309 85.26 0 0 0
2800 1 3969 0.99995309 85.26 0 0 0
2900 1 3969 0.99995309 85.26 0 0 0
3000 1 3969 0.99995309 85.26 0 0 0
3100 1 3969 0.99995309 85.26 0 0 0
3200 1 3969 0.99995309 85.26 0 0 0
3300 1 3969 0.99995309 85.26 0 0 0
3400 1 3969 0.99995309 85.26 0 0 0
3500 1 3969 0.99995309 85.26 0 0 0
3600 1 3969 0.99995309 85.26 0 0 0
3700 1 3969 0.99995309 85.26 0 0 0
3800 1 3969 0.99995309 85.26 0 0 0
3900 1 3969 0.99995309 85.26 0 0 0
4000 1 3969 0.99995309 85.26 0 0 0
4100 1 3969 0.99995309 85.26 0 0 0
4200 1 3969 0.99995309 85.26 0 0 0
4300 1 3969 0.99995309 85.26 0 0 0
4400 1 3969 0.99995309 85.26 0 0 0
4500 1 3969 0.99995309 85.26 0 0 0
4600 1 3969 0.99995309 85.26 0 0 0
4700 1 3969 0.99995309 85.26 0 0 0
4800 1 3969 0.99995309 85.26 0 0 0
4900 1 3969 0.99995309 85.26 0 0 0
5000 1 3969 0.99995309 85.26 0 0 0
Loop time of 3.48791 on 4 procs for 5000 steps with 21316 atoms
Pair time (%) = 0 (0)
Neigh time (%) = 1.4364 (41.1823)
Comm time (%) = 0.740496 (21.2303)
Outpt time (%) = 0.541988 (15.5391)
Other time (%) = 0.769027 (22.0483)
Nlocal: 5329 ave 5381 max 5260 min
Histogram: 1 0 0 0 1 0 0 0 1 1
Nghost: 0 ave 0 max 0 min
Histogram: 4 0 0 0 0 0 0 0 0 0
Neighs: 0 ave 0 max 0 min
Histogram: 4 0 0 0 0 0 0 0 0 0
Total # of neighbors = 0
Ave neighs/atom = 0
Neighbor list builds = 5000
Dangerous builds = 0
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