lammps/bench/POTENTIALS/log.26Jun12.granular.4

62 lines
1.5 KiB
Groff

LAMMPS (30 Jun 2012)
# granular chute flow
units lj
atom_style sphere
boundary p p fs
newton off
communicate single vel yes
read_data data.granular
orthogonal box = (0 0 0) to (40 20 37.2886)
2 by 1 by 2 MPI processor grid
32000 atoms
32000 velocities
pair_style gran/hooke/history 200000.0 NULL 50.0 NULL 0.5 0
pair_coeff * *
neighbor 0.1 bin
neigh_modify delay 5 every 1
timestep 0.0001
group bottom type 2
912 atoms in group bottom
group active subtract all bottom
31088 atoms in group active
neigh_modify exclude group bottom bottom
fix 1 all gravity 1.0 chute 26.0
fix 2 bottom freeze
fix 3 active nve/sphere
compute 1 all erotate/sphere
thermo_style custom step atoms ke c_1 vol
thermo_modify norm no
run 100
Memory usage per processor = 15.3108 Mbytes
Step Atoms KinEng 1 Volume
0 32000 784139.13 1601.1263 29833.783
100 32000 784292.08 1571.0968 29834.707
Loop time of 0.155661 on 4 procs for 100 steps with 32000 atoms
Pair time (%) = 0.0724595 (46.5496)
Neigh time (%) = 0.0113012 (7.26016)
Comm time (%) = 0.0168278 (10.8105)
Outpt time (%) = 0.000223458 (0.143554)
Other time (%) = 0.0548489 (35.2362)
Nlocal: 8000 ave 8008 max 7992 min
Histogram: 2 0 0 0 0 0 0 0 0 2
Nghost: 2439 ave 2450 max 2428 min
Histogram: 2 0 0 0 0 0 0 0 0 2
Neighs: 29500.5 ave 30488 max 28513 min
Histogram: 2 0 0 0 0 0 0 0 0 2
Total # of neighbors = 118002
Ave neighs/atom = 3.68756
Neighbor list builds = 2
Dangerous builds = 0