lammps/bench/POTENTIALS/log.16Mar18.lj.4

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LAMMPS (16 Mar 2018)
OMP_NUM_THREADS environment is not set. Defaulting to 1 thread. (../comm.cpp:90)
using 1 OpenMP thread(s) per MPI task
# 3d Lennard-Jones melt
units lj
atom_style atomic
lattice fcc 0.8442
Lattice spacing in x,y,z = 1.6796 1.6796 1.6796
region box block 0 20 0 20 0 20
create_box 1 box
Created orthogonal box = (0 0 0) to (33.5919 33.5919 33.5919)
1 by 2 by 2 MPI processor grid
create_atoms 1 box
Created 32000 atoms
Time spent = 0.000587225 secs
mass 1 1.0
velocity all create 1.44 87287 loop geom
pair_style lj/cut 2.5
pair_coeff 1 1 1.0 1.0 2.5
neighbor 0.3 bin
neigh_modify delay 5 every 1
fix 1 all nve
run 100
Neighbor list info ...
update every 1 steps, delay 5 steps, check yes
max neighbors/atom: 2000, page size: 100000
master list distance cutoff = 2.8
ghost atom cutoff = 2.8
binsize = 1.4, bins = 24 24 24
1 neighbor lists, perpetual/occasional/extra = 1 0 0
(1) pair lj/cut, perpetual
attributes: half, newton on
pair build: half/bin/atomonly/newton
stencil: half/bin/3d/newton
bin: standard
Per MPI rank memory allocation (min/avg/max) = 6.88 | 6.88 | 6.88 Mbytes
Step Temp E_pair E_mol TotEng Press
0 1.44 -6.7733681 0 -4.6134356 -5.0197073
100 0.75745998 -5.7584998 0 -4.6223453 0.20729996
Loop time of 0.469936 on 4 procs for 100 steps with 32000 atoms
Performance: 91927.316 tau/day, 212.795 timesteps/s
99.1% CPU use with 4 MPI tasks x 1 OpenMP threads
MPI task timing breakdown:
Section | min time | avg time | max time |%varavg| %total
---------------------------------------------------------------
Pair | 0.32713 | 0.32917 | 0.33317 | 0.4 | 70.05
Neigh | 0.10836 | 0.10931 | 0.11007 | 0.2 | 23.26
Comm | 0.015526 | 0.020355 | 0.022399 | 2.0 | 4.33
Output | 4.2439e-05 | 5.8353e-05 | 0.00010061 | 0.0 | 0.01
Modify | 0.0071156 | 0.0072448 | 0.007309 | 0.1 | 1.54
Other | | 0.003793 | | | 0.81
Nlocal: 8000 ave 8041 max 7958 min
Histogram: 2 0 0 0 0 0 0 0 0 2
Nghost: 9011 ave 9065 max 8961 min
Histogram: 1 1 0 0 0 0 0 1 0 1
Neighs: 300794 ave 304843 max 297317 min
Histogram: 1 0 0 1 1 0 0 0 0 1
Total # of neighbors = 1203176
Ave neighs/atom = 37.5992
Neighbor list builds = 11
Dangerous builds = 0
Total wall time: 0:00:00