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lammps/bench/log.15Feb16.chute.fixed.icc.1
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LAMMPS (15 Feb 2016)
# LAMMPS benchmark of granular flow
# chute flow of 32000 atoms with frozen base at 26 degrees
units lj
atom_style sphere
boundary p p fs
newton off
comm_modify vel yes
read_data data.chute
orthogonal box = (0 0 0) to (40 20 37.2886)
1 by 1 by 1 MPI processor grid
reading atoms ...
32000 atoms
reading velocities ...
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
Neighbor list info ...
2 neighbor list requests
update every 1 steps, delay 0 steps, check yes
max neighbors/atom: 2000, page size: 100000
master list distance cutoff = 1.1
ghost atom cutoff = 1.1
binsize = 0.55 -> bins = 73 37 68
Memory usage per processor = 15.567 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 0.550482 on 1 procs for 100 steps with 32000 atoms
Performance: 1569.534 tau/day, 181.659 timesteps/s
100.1% CPU use with 1 MPI tasks x no OpenMP threads
MPI task timing breakdown:
Section | min time | avg time | max time |%varavg| %total
---------------------------------------------------------------
Pair | 0.33849 | 0.33849 | 0.33849 | 0.0 | 61.49
Neigh | 0.040353 | 0.040353 | 0.040353 | 0.0 | 7.33
Comm | 0.018023 | 0.018023 | 0.018023 | 0.0 | 3.27
Output | 0.00020385 | 0.00020385 | 0.00020385 | 0.0 | 0.04
Modify | 0.13155 | 0.13155 | 0.13155 | 0.0 | 23.90
Other | | 0.02186 | | | 3.97
Nlocal: 32000 ave 32000 max 32000 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Nghost: 5463 ave 5463 max 5463 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Neighs: 115133 ave 115133 max 115133 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Total # of neighbors = 115133
Ave neighs/atom = 3.59791
Neighbor list builds = 2
Dangerous builds = 0
Total wall time: 0:00:00
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