forked from lijiext/lammps
105 lines
3.5 KiB
Groff
105 lines
3.5 KiB
Groff
LAMMPS (9 Oct 2020)
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using 1 OpenMP thread(s) per MPI task
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# Gay-Berne benchmark
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# biaxial ellipsoid mesogens in isotropic phase
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# shape: 2 1.5 1
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# cutoff 4.0 with skin 0.8
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# NPT, T=2.4, P=8.0
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units lj
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atom_style ellipsoid
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# creation
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#lattice sc 0.22
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#region box block 0 32 0 32 0 32
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#create_box 1 box
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#create_atoms 1 box
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#set group all quat/random 982381
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read_data data.gb
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Reading data file ...
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orthogonal box = (2.1957493 2.1957493 2.1957493) to (50.812373 50.812373 50.812373)
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1 by 2 by 2 MPI processor grid
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reading atoms ...
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32768 atoms
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reading velocities ...
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32768 velocities
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32768 ellipsoids
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read_data CPU = 0.079 seconds
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compute rot all temp/asphere
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group spheroid type 1
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32768 atoms in group spheroid
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variable dof equal count(spheroid)+3
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compute_modify rot extra ${dof}
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compute_modify rot extra 32771
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velocity all create 2.4 41787 loop geom
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pair_style gayberne 1.0 3.0 1.0 4.0
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pair_coeff 1 1 1.0 1.0 1.0 0.5 0.2 1.0 0.5 0.2
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neighbor 0.8 bin
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timestep 0.002
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thermo 20
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# equilibration
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#fix 1 all npt/asphere temp 2.4 2.4 0.1 iso 5.0 8.0 0.1
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#compute_modify 1_temp extra ${dof}
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#run 100
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#write_restart tmp.restart
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fix 1 all npt/asphere temp 2.4 2.4 0.2 iso 8.0 8.0 0.2
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run 100
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Neighbor list info ...
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update every 1 steps, delay 10 steps, check yes
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max neighbors/atom: 2000, page size: 100000
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master list distance cutoff = 4.8
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ghost atom cutoff = 4.8
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binsize = 2.4, bins = 21 21 21
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1 neighbor lists, perpetual/occasional/extra = 1 0 0
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(1) pair gayberne, perpetual
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attributes: half, newton on
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pair build: half/bin/atomonly/newton
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stencil: half/bin/3d/newton
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bin: standard
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Per MPI rank memory allocation (min/avg/max) = 11.99 | 11.99 | 12.00 Mbytes
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Step Temp E_pair E_mol TotEng Press Volume
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0 2.4 0.50438568 0 4.1042758 6.7818168 114909.09
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20 2.7357797 0.26044978 0 4.363994 6.8299173 111715.2
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40 2.9201268 0.2257049 0 4.6057615 7.0767796 109473.26
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60 2.9820022 0.19733756 0 4.6702044 7.1507023 108393.79
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80 3.014852 0.15114765 0 4.6732876 7.1699472 107672.25
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100 3.0206698 0.105676 0 4.6365424 7.1543436 107184.84
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Loop time of 14.9338 on 4 procs for 100 steps with 32768 atoms
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Performance: 1157.109 tau/day, 6.696 timesteps/s
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99.5% CPU use with 4 MPI tasks x 1 OpenMP threads
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MPI task timing breakdown:
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Section | min time | avg time | max time |%varavg| %total
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---------------------------------------------------------------
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Pair | 14.317 | 14.457 | 14.545 | 2.5 | 96.81
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Neigh | 0.080048 | 0.080928 | 0.082009 | 0.3 | 0.54
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Comm | 0.15948 | 0.24734 | 0.38914 | 18.9 | 1.66
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Output | 0.00018859 | 0.00034791 | 0.00082254 | 0.0 | 0.00
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Modify | 0.137 | 0.13804 | 0.13981 | 0.3 | 0.92
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Other | | 0.01041 | | | 0.07
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Nlocal: 8192.00 ave 8215 max 8166 min
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Histogram: 1 1 0 0 0 0 0 0 0 2
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Nghost: 11972.5 ave 11984 max 11959 min
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Histogram: 1 0 0 0 1 0 1 0 0 1
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Neighs: 576083.0 ave 579616 max 572161 min
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Histogram: 1 1 0 0 0 0 0 0 0 2
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Total # of neighbors = 2304331
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Ave neighs/atom = 70.322601
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Neighbor list builds = 6
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Dangerous builds = 3
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Please see the log.cite file for references relevant to this simulation
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Total wall time: 0:00:15
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