lammps/bench/log.15Jan10.chute.fixed.lin...

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LAMMPS (15 Jan 2010)
# LAMMPS benchmark of granular flow
# chute flow of 32000 atoms with frozen base at 26 degrees
units lj
atom_style granular
boundary p p fs
newton off
communicate single vel yes
read_data data.chute
orthogonal box = (0 0 0) to (40 20 37.2886)
2 by 1 by 2 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 every 1 delay 0
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
thermo 100
run 100
Memory usage per processor = 14.5608 Mbytes
Step Atoms KinEng 1 Volume
0 32000 784139.13 1601.1263 29830.88
100 32000 784289.99 1571.0137 29831.804
Loop time of 0.325478 on 4 procs for 100 steps with 32000 atoms
Pair time (%) = 0.14207 (43.6497)
Neigh time (%) = 0.0174815 (5.37102)
Comm time (%) = 0.0710311 (21.8236)
Outpt time (%) = 0.000512004 (0.157308)
Other time (%) = 0.0943834 (28.9984)
Nlocal: 8000 ave 8010 max 7990 min
Histogram: 2 0 0 0 0 0 0 0 0 2
Nghost: 2439 ave 2452 max 2426 min
Histogram: 2 0 0 0 0 0 0 0 0 2
Neighs: 29503.5 ave 30500 max 28507 min
Histogram: 2 0 0 0 0 0 0 0 0 2
Total # of neighbors = 118014
Ave neighs/atom = 3.68794
Neighbor list builds = 2
Dangerous builds = 0