Commit 77fe3db0 authored by sjplimp's avatar sjplimp
Browse files

git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@14608 f3b2605a-c512-4ea7-a41b-209d697bcdaa
parent 85a60a94
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LAMMPS (15 Feb 2016)
# FENE beadspring benchmark

units		lj
atom_style	bond
special_bonds   fene

read_data	data.chain
  orthogonal box = (-16.796 -16.796 -16.796) to (16.796 16.796 16.796)
  1 by 1 by 1 MPI processor grid
  reading atoms ...
  32000 atoms
  reading velocities ...
  32000 velocities
  scanning bonds ...
  1 = max bonds/atom
  reading bonds ...
  31680 bonds
  2 = max # of 1-2 neighbors
  2 = max # of special neighbors

neighbor	0.4 bin
neigh_modify	every 1 delay 1

bond_style      fene
bond_coeff	1 30.0 1.5 1.0 1.0

pair_style	lj/cut 1.12
pair_modify	shift yes
pair_coeff	1 1 1.0 1.0 1.12

fix		1 all nve
fix		2 all langevin 1.0 1.0 10.0 904297

thermo          100
timestep	0.012

run		100
Neighbor list info ...
  1 neighbor list requests
  update every 1 steps, delay 1 steps, check yes
  max neighbors/atom: 2000, page size: 100000
  master list distance cutoff = 1.52
  ghost atom cutoff = 1.52
  binsize = 0.76 -> bins = 45 45 45
Memory usage per processor = 11.5189 Mbytes
Step Temp E_pair E_mol TotEng Press 
       0   0.97029772   0.44484087    20.494523    22.394765    4.6721833 
     100    0.9729966    0.4361122    20.507698     22.40326    4.6548819 
Loop time of 0.978585 on 1 procs for 100 steps with 32000 atoms

Performance: 105948.895 tau/day, 102.188 timesteps/s
100.0% CPU use with 1 MPI tasks x no OpenMP threads

MPI task timing breakdown:
Section |  min time  |  avg time  |  max time  |%varavg| %total
---------------------------------------------------------------
Pair    | 0.19562    | 0.19562    | 0.19562    |   0.0 | 19.99
Bond    | 0.087475   | 0.087475   | 0.087475   |   0.0 |  8.94
Neigh   | 0.44861    | 0.44861    | 0.44861    |   0.0 | 45.84
Comm    | 0.032932   | 0.032932   | 0.032932   |   0.0 |  3.37
Output  | 0.00010395 | 0.00010395 | 0.00010395 |   0.0 |  0.01
Modify  | 0.19413    | 0.19413    | 0.19413    |   0.0 | 19.84
Other   |            | 0.01972    |            |       |  2.02

Nlocal:    32000 ave 32000 max 32000 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Nghost:    9493 ave 9493 max 9493 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Neighs:    155873 ave 155873 max 155873 min
Histogram: 1 0 0 0 0 0 0 0 0 0

Total # of neighbors = 155873
Ave neighs/atom = 4.87103
Ave special neighs/atom = 1.98
Neighbor list builds = 25
Dangerous builds = 0
Total wall time: 0:00:01
+78 −0
Original line number Diff line number Diff line
LAMMPS (15 Feb 2016)
# FENE beadspring benchmark

units		lj
atom_style	bond
special_bonds   fene

read_data	data.chain
  orthogonal box = (-16.796 -16.796 -16.796) to (16.796 16.796 16.796)
  1 by 2 by 2 MPI processor grid
  reading atoms ...
  32000 atoms
  reading velocities ...
  32000 velocities
  scanning bonds ...
  1 = max bonds/atom
  reading bonds ...
  31680 bonds
  2 = max # of 1-2 neighbors
  2 = max # of special neighbors

neighbor	0.4 bin
neigh_modify	every 1 delay 1

bond_style      fene
bond_coeff	1 30.0 1.5 1.0 1.0

pair_style	lj/cut 1.12
pair_modify	shift yes
pair_coeff	1 1 1.0 1.0 1.12

fix		1 all nve
fix		2 all langevin 1.0 1.0 10.0 904297

thermo          100
timestep	0.012

run		100
Neighbor list info ...
  1 neighbor list requests
  update every 1 steps, delay 1 steps, check yes
  max neighbors/atom: 2000, page size: 100000
  master list distance cutoff = 1.52
  ghost atom cutoff = 1.52
  binsize = 0.76 -> bins = 45 45 45
Memory usage per processor = 3.91518 Mbytes
Step Temp E_pair E_mol TotEng Press 
       0   0.97029772   0.44484087    20.494523    22.394765    4.6721833 
     100   0.97145835   0.43803883    20.502691    22.397872     4.626988 
Loop time of 0.271187 on 4 procs for 100 steps with 32000 atoms

Performance: 382319.453 tau/day, 368.749 timesteps/s
99.6% CPU use with 4 MPI tasks x no OpenMP threads

MPI task timing breakdown:
Section |  min time  |  avg time  |  max time  |%varavg| %total
---------------------------------------------------------------
Pair    | 0.048621   | 0.050076   | 0.051229   |   0.4 | 18.47
Bond    | 0.022254   | 0.022942   | 0.023567   |   0.3 |  8.46
Neigh   | 0.11873    | 0.11881    | 0.11887    |   0.0 | 43.81
Comm    | 0.019066   | 0.021357   | 0.024297   |   1.3 |  7.88
Output  | 5.0068e-05 | 5.5015e-05 | 6.1035e-05 |   0.1 |  0.02
Modify  | 0.048737   | 0.050198   | 0.051231   |   0.4 | 18.51
Other   |            | 0.007751   |            |       |  2.86

Nlocal:    8000 ave 8030 max 7974 min
Histogram: 1 0 0 1 0 1 0 0 0 1
Nghost:    4177 ave 4191 max 4160 min
Histogram: 1 0 0 0 1 0 0 1 0 1
Neighs:    38995.8 ave 39169 max 38852 min
Histogram: 1 0 0 1 1 0 0 0 0 1

Total # of neighbors = 155983
Ave neighs/atom = 4.87447
Ave special neighs/atom = 1.98
Neighbor list builds = 25
Dangerous builds = 0
Total wall time: 0:00:00
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LAMMPS (15 Feb 2016)
# FENE beadspring benchmark

variable	x index 1
variable	y index 1
variable	z index 1

units		lj
atom_style	bond
atom_modify	map hash
special_bonds   fene

read_data	data.chain
  orthogonal box = (-16.796 -16.796 -16.796) to (16.796 16.796 16.796)
  1 by 2 by 2 MPI processor grid
  reading atoms ...
  32000 atoms
  reading velocities ...
  32000 velocities
  scanning bonds ...
  1 = max bonds/atom
  reading bonds ...
  31680 bonds
  2 = max # of 1-2 neighbors
  2 = max # of special neighbors

replicate	$x $y $z
replicate	2 $y $z
replicate	2 2 $z
replicate	2 2 1
  orthogonal box = (-16.796 -16.796 -16.796) to (50.388 50.388 16.796)
  2 by 2 by 1 MPI processor grid
  128000 atoms
  126720 bonds
  2 = max # of 1-2 neighbors
  2 = max # of special neighbors

neighbor	0.4 bin
neigh_modify	every 1 delay 1

bond_style      fene
bond_coeff	1 30.0 1.5 1.0 1.0

pair_style	lj/cut 1.12
pair_modify	shift yes
pair_coeff	1 1 1.0 1.0 1.12

fix		1 all nve
fix		2 all langevin 1.0 1.0 10.0 904297

thermo          100
timestep	0.012

run		100
Neighbor list info ...
  1 neighbor list requests
  update every 1 steps, delay 1 steps, check yes
  max neighbors/atom: 2000, page size: 100000
  master list distance cutoff = 1.52
  ghost atom cutoff = 1.52
  binsize = 0.76 -> bins = 89 89 45
Memory usage per processor = 12.8735 Mbytes
Step Temp E_pair E_mol TotEng Press 
       0   0.97027498   0.44484087    20.494523    22.394765    4.6721833 
     100   0.97682955   0.44239968    20.500229    22.407862    4.6527025 
Loop time of 1.20889 on 4 procs for 100 steps with 128000 atoms

Performance: 85764.410 tau/day, 82.720 timesteps/s
99.8% CPU use with 4 MPI tasks x no OpenMP threads

MPI task timing breakdown:
Section |  min time  |  avg time  |  max time  |%varavg| %total
---------------------------------------------------------------
Pair    | 0.21738    | 0.23306    | 0.23926    |   1.9 | 19.28
Bond    | 0.094536   | 0.10196    | 0.10534    |   1.4 |  8.43
Neigh   | 0.52311    | 0.52392    | 0.52519    |   0.1 | 43.34
Comm    | 0.090161   | 0.10022    | 0.12557    |   4.7 |  8.29
Output  | 0.00012207 | 0.00017327 | 0.00019598 |   0.2 |  0.01
Modify  | 0.19662    | 0.20262    | 0.20672    |   0.8 | 16.76
Other   |            | 0.04694    |            |       |  3.88

Nlocal:    32000 ave 32015 max 31983 min
Histogram: 1 0 1 0 0 0 0 0 1 1
Nghost:    9492 ave 9522 max 9432 min
Histogram: 1 0 0 0 0 0 1 0 0 2
Neighs:    155837 ave 156079 max 155506 min
Histogram: 1 0 0 0 0 1 0 0 1 1

Total # of neighbors = 623349
Ave neighs/atom = 4.86991
Ave special neighs/atom = 1.98
Neighbor list builds = 25
Dangerous builds = 0
Total wall time: 0:00:01
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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
+80 −0
Original line number Diff line number Diff line
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)
  2 by 1 by 2 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 = 6.81783 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 0.13141 on 4 procs for 100 steps with 32000 atoms

Performance: 6574.833 tau/day, 760.976 timesteps/s
99.3% CPU use with 4 MPI tasks x no OpenMP threads

MPI task timing breakdown:
Section |  min time  |  avg time  |  max time  |%varavg| %total
---------------------------------------------------------------
Pair    | 0.062505   | 0.067      | 0.07152    |   1.5 | 50.99
Neigh   | 0.010041   | 0.0101     | 0.010178   |   0.1 |  7.69
Comm    | 0.012347   | 0.012895   | 0.013444   |   0.5 |  9.81
Output  | 6.3896e-05 | 0.00010294 | 0.00014091 |   0.3 |  0.08
Modify  | 0.031802   | 0.032348   | 0.032897   |   0.3 | 24.62
Other   |            | 0.008965   |            |       |  6.82

Nlocal:    8000 ave 8008 max 7992 min
Histogram: 2 0 0 0 0 0 0 0 0 2
Nghost:    2439 ave 2450 max 2428 min
Histogram: 2 0 0 0 0 0 0 0 0 2
Neighs:    29500.5 ave 30488 max 28513 min
Histogram: 2 0 0 0 0 0 0 0 0 2

Total # of neighbors = 118002
Ave neighs/atom = 3.68756
Neighbor list builds = 2
Dangerous builds = 0
Total wall time: 0:00:00
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