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lammps/bench/log.lj.serial-opt
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log.lj.serial-opt
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LAMMPS (6 Apr 2015-ICMS)
WARNING: OMP_NUM_THREADS environment is not set. (../comm.cpp:89)
using 1 OpenMP thread(s) per MPI task
# 3d Lennard-Jones melt
variable x index 1
variable y index 1
variable z index 1
variable xx equal 20*$x
variable xx equal 20*1
variable yy equal 20*$y
variable yy equal 20*1
variable zz equal 20*$z
variable zz equal 20*1
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 ${xx} 0 ${yy} 0 ${zz}
region box block 0 20 0 ${yy} 0 ${zz}
region box block 0 20 0 20 0 ${zz}
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 1 by 1 MPI processor grid
create_atoms 1 box
Created 32000 atoms
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 0 every 20 check no
fix 1 all nve
run 100
Neighbor list info ...
1 neighbor list requests
update every 20 steps, delay 0 steps, check no
master list distance cutoff = 2.8
Memory usage per processor = 8.21387 Mbytes
Step Temp E_pair E_mol TotEng Press
0 1.44 -6.7733681 0 -4.6134356 -5.0197073
100 0.7574531 -5.7585055 0 -4.6223613 0.20726105
Loop time of 1.77678 on 1 procs for 100 steps with 32000 atoms
100.1% CPU use with 1 MPI tasks x 1 OpenMP threads
MPI task timings breakdown:
Section | min time | avg time | max time |%varavg| %total
---------------------------------------------------------------
Pair | 1.4518 | 1.4518 | 1.4518 | 0.0 | 81.71
Neigh | 0.26188 | 0.26188 | 0.26188 | 0.0 | 14.74
Comm | 0.021981 | 0.021981 | 0.021981 | 0.0 | 1.24
Output | 0.00015187 | 0.00015187 | 0.00015187 | 0.0 | 0.01
Modify | 0.034947 | 0.034947 | 0.034947 | 0.0 | 1.97
Other | | 0.006014 | | | 0.34
Nlocal: 32000 ave 32000 max 32000 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Nghost: 19657 ave 19657 max 19657 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Neighs: 1.20283e+06 ave 1.20283e+06 max 1.20283e+06 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Total # of neighbors = 1202833
Ave neighs/atom = 37.5885
Neighbor list builds = 5
Dangerous builds = 0
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