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lammps/examples/balance/log.27Sep16.balance.group.static.g++.4
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LAMMPS (26 Sep 2016)
# 3d Lennard-Jones melt
units lj
atom_style atomic
processors * 1 1
variable factor index 1.0
lattice fcc 0.8442
Lattice spacing in x,y,z = 1.6796 1.6796 1.6796
region box block 0 10 0 10 0 10
create_box 3 box
Created orthogonal box = (0 0 0) to (16.796 16.796 16.796)
4 by 1 by 1 MPI processor grid
create_atoms 1 box
Created 4000 atoms
mass * 1.0
region long block 3 6 0 10 0 10
set region long type 2
1400 settings made for type
velocity all create 1.0 87287
pair_style lj/cut 2.5
pair_coeff * * 1.0 1.0 2.5
pair_coeff * 2 1.0 1.0 5.0
neighbor 0.3 bin
neigh_modify every 2 delay 4 check yes
balance 1.0 shift x 5 1.1 # out unweighted.txt
Neighbor list info ...
1 neighbor list requests
update every 2 steps, delay 4 steps, check yes
max neighbors/atom: 2000, page size: 100000
master list distance cutoff = 5.3
ghost atom cutoff = 5.3
binsize = 2.65 -> bins = 7 7 7
rebalancing time: 0.000433922 seconds
iteration count = 2
initial/final max load/proc = 1200 1200
initial/final imbalance factor = 1.2 1.2
x cuts: 0 0.25 0.5 0.6875 1
y cuts: 0 1
z cuts: 0 1
balance 1.0 x uniform
rebalancing time: 0.000152826 seconds
iteration count = 0
initial/final max load/proc = 1200 1200
initial/final imbalance factor = 1.2 1.2
x cuts: 0 0.25 0.5 0.75 1
y cuts: 0 1
z cuts: 0 1
variable weight atom (type==1)*1.0+(type==2)*v_factor
balance 1.0 shift x 5 1.1 weight var weight # out weighted_var.txt
rebalancing time: 0.000287056 seconds
iteration count = 2
weight variable: weight
initial/final max load/proc = 1200 1200
initial/final imbalance factor = 1.2 1.2
x cuts: 0 0.25 0.5 0.6875 1
y cuts: 0 1
z cuts: 0 1
balance 1.0 x uniform
rebalancing time: 0.00011611 seconds
iteration count = 0
initial/final max load/proc = 1200 1200
initial/final imbalance factor = 1.2 1.2
x cuts: 0 0.25 0.5 0.75 1
y cuts: 0 1
z cuts: 0 1
group fast type 1
2600 atoms in group fast
group slow type 2
1400 atoms in group slow
balance 1.0 shift x 5 1.1 weight group 2 fast 1.0 slow ${factor} # out weighted_group.txt
balance 1.0 shift x 5 1.1 weight group 2 fast 1.0 slow 1.0
rebalancing time: 0.000248909 seconds
iteration count = 2
group weights: fast=1 slow=1
initial/final max load/proc = 1200 1200
initial/final imbalance factor = 1.2 1.2
x cuts: 0 0.25 0.5 0.6875 1
y cuts: 0 1
z cuts: 0 1
fix 1 all nve
#dump id all atom 50 dump.melt
#dump 2 all image 25 image.*.jpg type type # axes yes 0.8 0.02 view 60 -30
#dump_modify 2 pad 3
#dump 3 all movie 25 movie.mpg type type # axes yes 0.8 0.02 view 60 -30
#dump_modify 3 pad 3
thermo 50
run 250
Memory usage per processor = 2.77892 Mbytes
Step Temp E_pair E_mol TotEng Press
0 1 -6.9453205 0 -5.4456955 -5.6812358
50 0.48653399 -6.1788509 0 -5.4492324 -1.6017778
100 0.53411175 -6.249885 0 -5.4489177 -1.9317606
150 0.53646658 -6.2527206 0 -5.4482219 -1.9689568
200 0.54551611 -6.2656326 0 -5.4475631 -2.0042104
250 0.54677719 -6.2671162 0 -5.4471555 -2.0015995
Loop time of 1.41033 on 4 procs for 250 steps with 4000 atoms
Performance: 76577.913 tau/day, 177.264 timesteps/s
98.7% CPU use with 4 MPI tasks x no OpenMP threads
MPI task timing breakdown:
Section | min time | avg time | max time |%varavg| %total
---------------------------------------------------------------
Pair | 0.33785 | 0.6592 | 1.1713 | 41.7 | 46.74
Neigh | 0.14133 | 0.17129 | 0.19681 | 5.6 | 12.15
Comm | 0.039078 | 0.57085 | 0.87566 | 45.3 | 40.48
Output | 0.00022721 | 0.00024492 | 0.00026417 | 0.1 | 0.02
Modify | 0.0025113 | 0.0033261 | 0.0040808 | 1.0 | 0.24
Other | | 0.005427 | | | 0.38
Nlocal: 1000 ave 1263 max 712 min
Histogram: 1 0 0 0 1 0 1 0 0 1
Nghost: 8711.5 ave 9045 max 8325 min
Histogram: 1 0 0 0 0 1 1 0 0 1
Neighs: 149325 ave 275165 max 77227 min
Histogram: 2 0 0 0 1 0 0 0 0 1
Total # of neighbors = 597299
Ave neighs/atom = 149.325
Neighbor list builds = 23
Dangerous builds = 0
Total wall time: 0:00:01
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