def test_with_pid_and_velo_xyz(self):
particle_list = [
(1, espressopp.Real3D(2.2319834598, 3.5858734534, 4.7485623451),
espressopp.Real3D(2.2319834598, 1.5556734534, 4.7485623451), 0),
(2, espressopp.Real3D(6.3459834598, 9.5858734534, 16.7485623451),
espressopp.Real3D(3.2319834598, 1.5858734534, 1.7485623451), 0),
(3, espressopp.Real3D(2.2319834598, 15.5858734534, 5.7485623451),
espressopp.Real3D(4.2319834598, 2.5858734534, 2.7485623451), 2),
(4, espressopp.Real3D(8.2319834598, 7.9958734534, 14.5325623451),
espressopp.Real3D(5.2319834598, 6.5858734534, 18.7485623451), 3),
(5, espressopp.Real3D(3.2319834598, 19.5858734534, 4.7485623451),
espressopp.Real3D(6.2319834598, 8.5858734534, 7.7485623451), 1),
]
self.system.storage.addParticles(particle_list, 'id', 'pos', 'v',
'type')
file_xyz = "test_true_pid_true_velo_dumpXYZ_type_not_hardcoded.xyz"
dump_xyz = espressopp.io.DumpXYZ(self.system,
self.integrator,
filename=file_xyz,
unfolded=False,
length_factor=1.0,
length_unit='LJ',
store_pids=True,
store_velocities=True,
append=False)
dump_xyz.dump()
#filecmp.clear_cache()
self.assertTrue(
filecmp.cmp(file_xyz, expected_files[2], shallow=False),
"!!! Error! Files are not equal!! They should be equal!")
def test_cyclization(self):
"""Check if it is possible to make an cycle"""
particle_list = [
(3, 2, espressopp.Real3D(2.0, 3.0, 2.0), 3, 1),
(4, 1, espressopp.Real3D(2.5, 3.0, 2.0), 4, 1),
]
self.system.storage.addParticles(particle_list, *self.part_prop)
self.system.storage.decompose()
self.topology_manager.initialize_topology()
r_type_1 = espressopp.integrator.Reaction(type_1=1,
type_2=2,
delta_1=1,
delta_2=1,
min_state_1=1,
max_state_1=3,
min_state_2=1,
max_state_2=3,
rate=400.0,
fpl=self.fpl1,
cutoff=1.1)
self.ar.add_reaction(r_type_1)
fpl1_before = self.fpl1.getBonds()
self.assertEquals(fpl1_before, [[]])
self.integrator.run(4)
fpl1_after = self.fpl1.getBonds()
# Full cycle.
self.assertItemsEqual(fpl1_after[0], [(2, 4), (3, 4), (1, 2), (1, 3)])
def test_simple_gromacs(self):
particle_list = [
(1, espressopp.Real3D(2.2319834598, 3.5858734534, 4.7485623451),
espressopp.Real3D(2.2319834598, 1.5556734534, 4.7485623451), 0),
(2, espressopp.Real3D(6.3459834598, 9.5858734534, 16.7485623451),
espressopp.Real3D(3.2319834598, 1.5858734534, 1.7485623451), 0),
(3, espressopp.Real3D(2.2319834598, 15.5858734534, 5.7485623451),
espressopp.Real3D(4.2319834598, 2.5858734534, 2.7485623451), 2),
(4, espressopp.Real3D(8.2319834598, 7.9958734534, 14.5325623451),
espressopp.Real3D(5.2319834598, 6.5858734534, 18.7485623451), 3),
(5, espressopp.Real3D(3.2319834598, 19.5858734534, 4.7485623451),
espressopp.Real3D(6.2319834598, 8.5858734534, 7.7485623451), 1),
]
self.system.storage.addParticles(particle_list, 'id', 'pos', 'v',
'type')
file_gro = "test_standard_dumpGRO_type_not_hardcoded.gro"
dump_gro = espressopp.io.DumpGRO(self.system,
self.integrator,
filename=file_gro,
unfolded=False,
length_factor=1.0,
length_unit='LJ',
append=False)
dump_gro.dump()
self.assertTrue(
filecmp.cmp(file_gro, expected_files[0], shallow=False),
"!!! Error! Files are not equal!! They should be equal!")
def test_non_cyclization(self):
"""Check if it is possible to make an cycle"""
particle_list = [
(3, 2, espressopp.Real3D(2.0, 3.0, 2.0), 1, 1),
(4, 1, espressopp.Real3D(2.5, 3.0, 2.0), 1, 1),
]
self.system.storage.addParticles(particle_list, *self.part_prop)
self.system.storage.modifyParticle(1, 'res_id', 2)
self.system.storage.modifyParticle(2, 'res_id', 2)
self.fpl1.addBonds([(1, 2), (3, 4), (1, 3)])
self.topology_manager.initialize_topology()
self.system.storage.decompose()
self.integrator.run(0)
r_type_1 = espressopp.integrator.Reaction(type_1=1,
type_2=2,
delta_1=1,
delta_2=1,
min_state_1=1,
max_state_1=3,
min_state_2=1,
max_state_2=3,
rate=400.0,
fpl=self.fpl1,
cutoff=1.1)
r_type_1.intraresidual = False
self.ar.add_reaction(r_type_1)
fpl1_before = self.fpl1.getBonds()
self.integrator.run(2)
fpl1_after = self.fpl1.getBonds()
# Full cycle.
self.assertEquals(set(fpl1_after[0]), {(1, 2), (1, 3), (3, 4)})
def setUp(self):
system = espressopp.System()
system.bc = espressopp.bc.OrthorhombicBC(system.rng, (10, 10, 10))
system.rng = espressopp.esutil.RNG(54321)
system.skin = 0.3
system.comm = MPI.COMM_WORLD
self.system = system
system.storage = espressopp.storage.DomainDecomposition(system)
particle_lists = [
(1, espressopp.Real3D(0, 1, 2), espressopp.Real3D(0, 0, 0)),
(2, espressopp.Real3D(0, 1, 2), espressopp.Real3D(0, 0, 0)),
(3, espressopp.Real3D(0, 1, 2), espressopp.Real3D(0, 0, 0)),
(4, espressopp.Real3D(0, 1, 2), espressopp.Real3D(0, 0, 0)),
(5, espressopp.Real3D(0, 1, 2), espressopp.Real3D(0, 0, 0))
]
self.thermo_group_pids = [1, 2, 3]
self.non_thermo_group_pids = [4, 5]
system.storage.addParticles(particle_lists, 'id', 'pos', 'v')
self.thermo_group = espressopp.ParticleGroup(system.storage)
for p in self.thermo_group_pids:
self.thermo_group.add(p)
self.integrator = espressopp.integrator.VelocityVerlet(system)
self.integrator.dt = 0.001
def setUp(self):
super(TestCaseRemoveNeighbourBond, self).setUp()
particle_list = [
(3, 3, espressopp.Real3D(3.0, 2.0, 2.0), 2, 1),
(4, 4, espressopp.Real3D(3.5, 2.0, 2.0), 2, 1),
(5, 4, espressopp.Real3D(3.5, 2.0, 2.0), 2, 1),
(6, 3, espressopp.Real3D(3.5, 2.0, 2.0), 2, 1),
(7, 4, espressopp.Real3D(3.5, 2.0, 2.0), 2, 1),
]
self.system.storage.addParticles(particle_list, *self.part_prop)
self.system.storage.decompose()
self.fpl23 = espressopp.FixedPairList(self.system.storage)
self.fpl24 = espressopp.FixedPairList(self.system.storage)
self.fpl34 = espressopp.FixedPairList(self.system.storage)
self.ftl234 = espressopp.FixedTripleList(self.system.storage)
self.ftl234.addTriples([(2, 3, 4)])
self.fpl23.addBonds([(2, 3)])
self.fpl24.addBonds([(2, 7)])
self.fpl34.addBonds([(3, 4), (3, 5), (4, 6)])
self.topology_manager.register_tuple(self.fpl24, 2, 4)
self.topology_manager.register_tuple(self.fpl34, 3, 4)
self.topology_manager.register_tuple(self.fpl23, 2, 3)
self.topology_manager.register_triplet(self.ftl234, 2, 3, 4)
self.topology_manager.initialize_topology()
def test_simple_xtc(self):
particle_list = [(1, espressopp.Real3D(4.75575, 5.82131, 16.9163)),
(2, espressopp.Real3D(3.04417, 11.7107, 3.86951)),
(3, espressopp.Real3D(16.2125, 3.47061, 9.69966)),
(4, espressopp.Real3D(3.03725, 7.33914, 9.83473)),
(5, espressopp.Real3D(18.2019, 5.30514, 17.8638)),
(6, espressopp.Real3D(4.40702, 12.636, 11.4215)),
(7, espressopp.Real3D(6.64315, 2.0891, 10.0586)),
(8, espressopp.Real3D(11.3479, 17.0833, 0.802817)),
(9, espressopp.Real3D(2.16045, 12.7879, 0.26222))]
self.system.storage.addParticles(particle_list, 'id', 'pos')
file_xtc_9atoms = "test_without_compression.xtc"
dump_xtc = espressopp.io.DumpXTC(self.system,
self.integrator,
filename=file_xtc_9atoms,
unfolded=False,
length_factor=1.0,
append=False)
dump_xtc.dump()
self.system.storage.addParticles(
[(10, espressopp.Real3D(14.4037, 2.03629, 9.6589))], 'id', 'pos')
file_xtc_10atoms = "test_with_compression.xtc"
dump_xtc = espressopp.io.DumpXTC(self.system,
self.integrator,
filename=file_xtc_10atoms,
unfolded=False,
length_factor=1.0,
append=False)
dump_xtc.dump()
def test_on_radius(self):
# set up normal domain decomposition
box = (10, 10, 10)
nodeGrid = espressopp.tools.decomp.nodeGrid(
espressopp.MPI.COMM_WORLD.size, box, rc=1.5, skin=0.3)
cellGrid = espressopp.tools.decomp.cellGrid(box,
nodeGrid,
rc=1.5,
skin=0.3)
self.system.storage = espressopp.storage.DomainDecomposition(
self.system, nodeGrid, cellGrid)
# add some particles (normal, coarse-grained particles only)
particle_list = [
(1, 1, 0, espressopp.Real3D(5.5, 5.0, 5.0), 1.0, 0, 1.),
(2, 1, 0, espressopp.Real3D(6.5, 5.0, 5.0), 1.0, 0, 1.),
(3, 1, 0, espressopp.Real3D(7.5, 5.0, 5.0), 1.0, 0, 1.),
]
self.system.storage.addParticles(particle_list, 'id', 'type', 'q',
'pos', 'mass', 'adrat', 'radius')
self.system.storage.decompose()
# generate a verlet list
vl = espressopp.VerletList(self.system, cutoff=1.5)
# integrator
integrator = espressopp.integrator.VelocityVerlet(self.system)
integrator.dt = 0.01
# integrator on radius
radius_mass = 10.
integratorOnRadius = espressopp.integrator.VelocityVerletOnRadius(
self.system, dampingmass=radius_mass)
integrator.addExtension(integratorOnRadius)
# Langevin Thermostat on Radius
langevin = espressopp.integrator.LangevinThermostatOnRadius(
self.system, dampingmass=radius_mass)
langevin.gamma = 1.0
langevin.temperature = 10.0
langevin.addExclusions([1])
integrator.addExtension(langevin)
# coordinates of particles before integration
before = [
self.system.storage.getParticle(i).radius for i in range(1, 4)
]
# run ten steps
integrator.run(10)
# coordinates of particles after integration
after = [
self.system.storage.getParticle(i).radius for i in range(1, 4)
]
# run checks (first particle excluded, hence it's radius should not change. The other should have changed, however, as they feel the thermostat on radius)
self.assertEqual(before[0], after[0])
self.assertNotEqual(before[1], after[1])
self.assertNotEqual(before[2], after[2])
def setUp(self):
self.system, self.integrator = espressopp.standard_system.Minimal(
0, (10., 10., 10.))
particles = [(1, 0, espressopp.Real3D(5, 5, 5)),
(2, 0, espressopp.Real3D(5, 6.97, 5)),
(3, 1, espressopp.Real3D(5, 8.94, 5)),
(4, 1, espressopp.Real3D(5, 10.94, 5))]
self.part_prop = ('id', 'type', 'pos')
self.system.storage.addParticles(particles, *self.part_prop)
def setUp(self):
# set up system
system = espressopp.System()
box = (10, 10, 10)
system.bc = espressopp.bc.OrthorhombicBC(system.rng, box)
system.skin = 0.3
system.comm = MPI.COMM_WORLD
nodeGrid = espressopp.tools.decomp.nodeGrid(
espressopp.MPI.COMM_WORLD.size, box, rc=1.5, skin=system.skin)
cellGrid = espressopp.tools.decomp.cellGrid(box,
nodeGrid,
rc=1.5,
skin=system.skin)
system.storage = espressopp.storage.DomainDecompositionAdress(
system, nodeGrid, cellGrid)
self.system = system
# add some particles
particle_list = [
(1, 1, 0, espressopp.Real3D(5.5, 5.0, 5.0), 1.0, 0),
(2, 1, 0, espressopp.Real3D(6.5, 5.0, 5.0), 1.0, 0),
(3, 1, 0, espressopp.Real3D(7.5, 5.0, 5.0), 1.0, 0),
(4, 1, 0, espressopp.Real3D(8.5, 5.0, 5.0), 1.0, 0),
(5, 1, 0, espressopp.Real3D(9.5, 5.0, 5.0), 1.0, 0),
(6, 0, 1.0, espressopp.Real3D(5.5, 5.0, 5.0), 1.0, 1),
(7, 0, 1.0, espressopp.Real3D(6.5, 5.0, 5.0), 1.0, 1),
(8, 0, 1.0, espressopp.Real3D(7.5, 5.0, 5.0), 1.0, 1),
(9, 0, 1.0, espressopp.Real3D(8.5, 5.0, 5.0), 1.0, 1),
(10, 0, 1.0, espressopp.Real3D(9.5, 5.0, 5.0), 1.0, 1),
]
tuples = [(1, 6), (2, 7), (3, 8), (4, 9), (5, 10)]
self.system.storage.addParticles(particle_list, 'id', 'type', 'q',
'pos', 'mass', 'adrat')
self.ftpl = espressopp.FixedTupleListAdress(self.system.storage)
self.ftpl.addTuples(tuples)
self.system.storage.setFixedTuplesAdress(self.ftpl)
self.system.storage.decompose()
# set up a verlet list
self.vl = espressopp.VerletListAdress(self.system,
cutoff=1.5,
adrcut=1.5,
dEx=2.0,
dHy=1.0,
adrCenter=[5.0, 5.0, 5.0],
sphereAdr=False)
# set up integrator
self.integrator = espressopp.integrator.VelocityVerletRESPA(
self.system)
self.integrator.dt = 0.01
self.integrator.multistep = 4
adress = espressopp.integrator.Adress(self.system,
self.vl,
self.ftpl,
multistep=4)
self.integrator.addExtension(adress)
def test_cap_force_array_group(self):
# set up normal domain decomposition
nodeGrid = espressopp.tools.decomp.nodeGrid(
espressopp.MPI.COMM_WORLD.size)
cellGrid = espressopp.tools.decomp.cellGrid(self.box, nodeGrid, 1.5,
0.3)
self.system.storage = espressopp.storage.DomainDecomposition(
self.system, nodeGrid, cellGrid)
# add some particles (normal, coarse-grained particles only)
particle_list = [
(1, 0, 0, espressopp.Real3D(4.95, 5.0, 5.0), 1.0, 0, 1.),
(2, 0, 0, espressopp.Real3D(5.05, 5.0, 5.0), 1.0, 0, 1.),
]
self.system.storage.addParticles(particle_list, 'id', 'type', 'q',
'pos', 'mass', 'adrat', 'radius')
self.system.storage.decompose()
# integrator
integrator = espressopp.integrator.VelocityVerlet(self.system)
integrator.dt = 0.005
# Lennard-Jones with Verlet list
rc_lj = pow(2.0, 1.0 / 6.0)
vl = espressopp.VerletList(self.system, cutoff=rc_lj)
potLJ = espressopp.interaction.LennardJones(epsilon=1.,
sigma=1.,
cutoff=rc_lj,
shift=0)
interLJ = espressopp.interaction.VerletListLennardJones(vl)
interLJ.setPotential(type1=0, type2=0, potential=potLJ)
self.system.addInteraction(interLJ)
# create a ParticleGroup instance
particle_group = espressopp.ParticleGroup(self.system.storage)
particle_group.add(1)
# create a CapForce instance
capforce = espressopp.integrator.CapForce(
self.system, espressopp.Real3D(1.0, 1.0, 1.0), particle_group)
integrator.addExtension(capforce)
# run 1 step
integrator.run(1)
particle1 = self.system.storage.getParticle(1)
particle2 = self.system.storage.getParticle(2)
print(particle1.f, particle2.f)
# run checks
self.assertTrue(
math.fabs(particle1.f[0]) == 1.0,
"The force of particle 1 is not capped.")
self.assertTrue(
math.fabs(particle2.f[0]) > 1.0,
"The force of particle 2 is capped.")
def setUp(self):
super(TestCaseChangeNeighbourProperty, self).setUp()
particle_list = [(3, 3, espressopp.Real3D(3.0, 2.0, 2.0), 2, 1),
(4, 4, espressopp.Real3D(3.5, 2.0, 2.0), 2, 1),
(5, 3, espressopp.Real3D(3.5, 2.0, 2.0), 1, 7),
(6, 4, espressopp.Real3D(3.5, 2.0, 2.0), 1, 1)]
self.system.storage.addParticles(particle_list, *self.part_prop)
self.fpl1.addBonds([(2, 3), (3, 4), (1, 5), (5, 6)])
self.topology_manager.initialize_topology()
def test_no_potential(self):
particle_list = [
(1, espressopp.Real3D(2.0, 2.0, 2.0), 1.0),
(2, espressopp.Real3D(3.0, 2.0, 2.0), 1.0),
]
self.system.storage.addParticles(particle_list, 'id', 'pos', 'mass')
self.system.storage.decompose()
minimize_energy = espressopp.integrator.MinimizeEnergy(self.system, 0.001, 0.0, 0.001)
minimize_energy.run(10)
self.assertEqual(minimize_energy.f_max, 0.0);
def test_sphere(self):
# add some particles
particle_list = [
(1, 1, 0, espressopp.Real3D(5.0, 5.5, 5.0), 1.0, 0),
(2, 1, 0, espressopp.Real3D(5.0, 6.5, 5.0), 1.0, 0),
(3, 1, 0, espressopp.Real3D(5.0, 7.5, 5.0), 1.0, 0),
(4, 1, 0, espressopp.Real3D(5.0, 8.5, 5.0), 1.0, 0),
(5, 1, 0, espressopp.Real3D(5.0, 9.5, 5.0), 1.0, 0),
(6, 0, 0, espressopp.Real3D(5.0, 5.5, 5.0), 1.0, 1),
(7, 0, 0, espressopp.Real3D(5.0, 6.5, 5.0), 1.0, 1),
(8, 0, 0, espressopp.Real3D(5.0, 7.5, 5.0), 1.0, 1),
(9, 0, 0, espressopp.Real3D(5.0, 8.5, 5.0), 1.0, 1),
(10, 0, 0, espressopp.Real3D(5.0, 9.5, 5.0), 1.0, 1),
]
tuples = [(1,6),(2,7),(3,8),(4,9),(5,10)]
self.system.storage.addParticles(particle_list, 'id', 'type', 'q', 'pos', 'mass','adrat')
ftpl = espressopp.FixedTupleListAdress(self.system.storage)
ftpl.addTuples(tuples)
self.system.storage.setFixedTuplesAdress(ftpl)
self.system.storage.decompose()
# generate a verlet list
vl = espressopp.VerletListAdress(self.system, cutoff=1.5, adrcut=1.5,
dEx=2.0, dHy=1.0, adrCenter=[5.0, 5.0, 5.0], sphereAdr=True)
# initialize lambda values
integrator = espressopp.integrator.VelocityVerlet(self.system)
integrator.dt = 0.01
adress = espressopp.integrator.Adress(self.system,vl,ftpl)
integrator.addExtension(adress)
espressopp.tools.AdressDecomp(self.system, integrator)
# set up FEC
fec = espressopp.integrator.FreeEnergyCompensation(self.system, center=[5.0, 5.0, 5.0], sphereAdr=True)
fec.addForce(itype=3,filename="table_fec.tab",type=1)
integrator.addExtension(fec)
# y coordinates of particles before integration
before = [self.system.storage.getParticle(i).pos[1] for i in range(1,6)]
# run ten steps
integrator.run(10)
energy = fec.computeCompEnergy()
# y coordinates of particles after integration
after = [self.system.storage.getParticle(i).pos[1] for i in range(1,6)]
# run checks (as for test with slab-geometry, but check y-coordinates this time. Given the now spherical setup, particles should move as before but along the y-axis).
self.assertEqual(before[0], after[0])
self.assertEqual(before[1], after[1])
self.assertAlmostEqual(after[2], 7.598165, places=5)
self.assertEqual(before[3], after[3])
self.assertEqual(before[4], after[4])
self.assertAlmostEqual(energy, 6.790157, places=5)
def test0get(self):
system = espressopp.System()
system.rng = espressopp.esutil.RNG()
system.bc = espressopp.bc.OrthorhombicBC(system.rng, (10.0, 10.0, 10.0))
system.storage = espressopp.storage.DomainDecomposition(
system=system,
nodeGrid=(1,1,1), cellGrid=(2,2,2))
p = system.storage.addParticle(0, (1.0, 1.0, 1.0))
p.v = espressopp.Real3D(1.0, 1.0, 1.0)
self.assertAlmostEqualReal3D(p.v, espressopp.Real3D(1.0, 1.0, 1.0))
def test_slab(self):
# add some particles
particle_list = [
(1, 1, 0, espressopp.Real3D(5.5, 5.0, 5.0), 1.0, 0),
(2, 1, 0, espressopp.Real3D(6.5, 5.0, 5.0), 1.0, 0),
(3, 1, 0, espressopp.Real3D(7.5, 5.0, 5.0), 1.0, 0),
(4, 1, 0, espressopp.Real3D(8.5, 5.0, 5.0), 1.0, 0),
(5, 1, 0, espressopp.Real3D(9.5, 5.0, 5.0), 1.0, 0),
(6, 0, 0, espressopp.Real3D(5.5, 5.0, 5.0), 1.0, 1),
(7, 0, 0, espressopp.Real3D(6.5, 5.0, 5.0), 1.0, 1),
(8, 0, 0, espressopp.Real3D(7.5, 5.0, 5.0), 1.0, 1),
(9, 0, 0, espressopp.Real3D(8.5, 5.0, 5.0), 1.0, 1),
(10, 0, 0, espressopp.Real3D(9.5, 5.0, 5.0), 1.0, 1),
]
tuples = [(1,6),(2,7),(3,8),(4,9),(5,10)]
self.system.storage.addParticles(particle_list, 'id', 'type', 'q', 'pos', 'mass','adrat')
ftpl = espressopp.FixedTupleListAdress(self.system.storage)
ftpl.addTuples(tuples)
self.system.storage.setFixedTuplesAdress(ftpl)
self.system.storage.decompose()
# generate a verlet list
vl = espressopp.VerletListAdress(self.system, cutoff=1.5, adrcut=1.5,
dEx=2.0, dHy=1.0, adrCenter=[5.0, 5.0, 5.0], sphereAdr=False)
# initialize lambda values
integrator = espressopp.integrator.VelocityVerlet(self.system)
integrator.dt = 0.01
adress = espressopp.integrator.Adress(self.system,vl,ftpl)
integrator.addExtension(adress)
espressopp.tools.AdressDecomp(self.system, integrator)
# set up FEC
fec = espressopp.integrator.FreeEnergyCompensation(self.system, center=[5.0, 5.0, 5.0])
fec.addForce(itype=3,filename="table_fec.tab",type=1)
integrator.addExtension(fec)
# x coordinates of particles before integration
before = [self.system.storage.getParticle(i).pos[0] for i in range(1,6)]
# run ten steps and compute energy
integrator.run(10)
energy = fec.computeCompEnergy()
# x coordinates of particles after integration
after = [self.system.storage.getParticle(i).pos[0] for i in range(1,6)]
# run checks (only one particle is in hybrid region and should feel the FEC. Also check that its FEC energy is correct)
self.assertEqual(before[0], after[0])
self.assertEqual(before[1], after[1])
self.assertAlmostEqual(after[2], 7.598165, places=5)
self.assertEqual(before[3], after[3])
self.assertEqual(before[4], after[4])
self.assertAlmostEqual(energy, 6.790157, places=5)
def setUp(self):
# super(TestParticleGroupByTypeTest, self).setUp()
self.system, self.integrator = espressopp.standard_system.Minimal(
0, (10., 10., 10.), dt=0.01)
self.particle_list = [(1, 0, espressopp.Real3D(1, 1, 1)),
(2, 1, espressopp.Real3D(1, 1, 6)),
(3, 1, espressopp.Real3D(1, 1, 4.7)),
(4, 2, espressopp.Real3D(1, 1, 10))]
self.part_prop = ['id', 'type', 'pos']
self.system.storage.addParticles(self.particle_list, *self.part_prop)
self.system.storage.decompose()
def setUp(self):
self.system, self.integrator = espressopp.standard_system.Minimal(
0, (10., 10., 10.))
particles = [(1, 0, espressopp.Real3D(5, 5, 5)),
(2, 0, espressopp.Real3D(5, 6.97, 5)),
(3, 1, espressopp.Real3D(5, 8.94, 5)),
(4, 1, espressopp.Real3D(5, 10.94, 5))]
self.part_prop = ('id', 'type', 'pos')
self.system.storage.addParticles(particles, *self.part_prop)
self.fixed_dynamic_resolution = espressopp.integrator.FixedListDynamicResolution(
self.system)
self.integrator.addExtension(self.fixed_dynamic_resolution)
def setUp(self):
self.h5md_file = 'output.h5'
remove_file(self.h5md_file)
self.system, self.integrator = espressopp.standard_system.Default(
(10., 10., 10.), dt=0.1)
self.particles = [(1, espressopp.Real3D(1, 2, 3), 1),
(2, espressopp.Real3D(2, 3, 4), 2),
(3, espressopp.Real3D(3, 4, 5), 3),
(4, espressopp.Real3D(4, 5, 6), 4)]
self.system.storage.addParticles(self.particles, 'id', 'pos', 'type')
def test_slab(self):
# add some particles
particle_list = [
(1, 1, 0, espressopp.Real3D(5.5, 5.0, 5.0), 1.0, 0),
(2, 1, 0, espressopp.Real3D(6.5, 5.0, 5.0), 1.0, 0),
(3, 1, 0, espressopp.Real3D(7.5, 5.0, 5.0), 1.0, 0),
(4, 1, 0, espressopp.Real3D(8.5, 5.0, 5.0), 1.0, 0),
(5, 1, 0, espressopp.Real3D(9.5, 5.0, 5.0), 1.0, 0),
(6, 0, 0, espressopp.Real3D(5.5, 5.0, 5.0), 1.0, 1),
(7, 0, 0, espressopp.Real3D(6.5, 5.0, 5.0), 1.0, 1),
(8, 0, 0, espressopp.Real3D(7.5, 5.0, 5.0), 1.0, 1),
(9, 0, 0, espressopp.Real3D(8.5, 5.0, 5.0), 1.0, 1),
(10, 0, 0, espressopp.Real3D(9.5, 5.0, 5.0), 1.0, 1),
]
tuples = [(1,6),(2,7),(3,8),(4,9),(5,10)]
self.system.storage.addParticles(particle_list, 'id', 'type', 'q', 'pos', 'mass','adrat')
ftpl = espressopp.FixedTupleListAdress(self.system.storage)
ftpl.addTuples(tuples)
self.system.storage.setFixedTuplesAdress(ftpl)
self.system.storage.decompose()
# generate a verlet list
vl = espressopp.VerletListAdress(self.system, cutoff=1.5, adrcut=1.5,
dEx=1.0, dHy=1.0, adrCenter=[5.0, 5.0, 5.0], sphereAdr=False)
# initialize lambda values
integrator = espressopp.integrator.VelocityVerlet(self.system)
integrator.dt = 0.01
adress = espressopp.integrator.Adress(self.system,vl,ftpl)
integrator.addExtension(adress)
espressopp.tools.AdressDecomp(self.system, integrator)
# set up TD force
thdforce = espressopp.integrator.TDforce(self.system,vl)
thdforce.addForce(itype=3,filename="table_tf.tab",type=1)
integrator.addExtension(thdforce)
# x coordinates of particles before integration
before = [self.system.storage.getParticle(i).pos[0] for i in range(1,6)]
# run ten steps
integrator.run(10)
# x coordinates of particles after integration
after = [self.system.storage.getParticle(i).pos[0] for i in range(1,6)]
# run checks (only one particle is in hybrid region, should feel the thermodynamic force, and should hence move along the x direction)
self.assertEqual(before[0], after[0])
self.assertAlmostEqual(after[1], 6.596913, places=5)
self.assertEqual(before[2], after[2])
self.assertEqual(before[3], after[3])
self.assertEqual(before[4], after[4])
def test_fixed_sphere(self):
# add some particles
particle_list = [
(1, 1, 0, espressopp.Real3D(5.0, 5.5, 5.0), 1.0, 0),
(2, 1, 0, espressopp.Real3D(5.0, 6.5, 5.0), 1.0, 0),
(3, 1, 0, espressopp.Real3D(5.0, 7.5, 5.0), 1.0, 0),
(4, 1, 0, espressopp.Real3D(5.0, 8.5, 5.0), 1.0, 0),
(5, 1, 0, espressopp.Real3D(5.0, 9.5, 5.0), 1.0, 0),
(6, 0, 0, espressopp.Real3D(5.0, 5.5, 5.0), 1.0, 1),
(7, 0, 0, espressopp.Real3D(5.0, 6.5, 5.0), 1.0, 1),
(8, 0, 0, espressopp.Real3D(5.0, 7.5, 5.0), 1.0, 1),
(9, 0, 0, espressopp.Real3D(5.0, 8.5, 5.0), 1.0, 1),
(10, 0, 0, espressopp.Real3D(5.0, 9.5, 5.0), 1.0, 1),
]
tuples = [(1,6),(2,7),(3,8),(4,9),(5,10)]
self.system.storage.addParticles(particle_list, 'id', 'type', 'q', 'pos', 'mass','adrat')
ftpl = espressopp.FixedTupleListAdress(self.system.storage)
ftpl.addTuples(tuples)
self.system.storage.setFixedTuplesAdress(ftpl)
self.system.storage.decompose()
# generate a verlet list
vl = espressopp.VerletListAdress(self.system, cutoff=1.5, adrcut=1.5,
dEx=1.0, dHy=1.0, adrCenter=[5.0, 5.0, 5.0], sphereAdr=True)
# initialize lambda values
integrator = espressopp.integrator.VelocityVerlet(self.system)
integrator.dt = 0.01
adress = espressopp.integrator.Adress(self.system,vl,ftpl)
integrator.addExtension(adress)
espressopp.tools.AdressDecomp(self.system, integrator)
# set up TD force
thdforce = espressopp.integrator.TDforce(self.system,vl)
thdforce.addForce(itype=3,filename="table_tf.tab",type=1)
integrator.addExtension(thdforce)
# y coordinates of particles before integration
before = [self.system.storage.getParticle(i).pos[1] for i in range(1,6)]
# run ten steps
integrator.run(10)
# y coordinates of particles after integration
after = [self.system.storage.getParticle(i).pos[1] for i in range(1,6)]
# run checks (as test before, just that particles should move in y-direction given the new setup and the spherical adaptive resolution geometry)
self.assertEqual(before[0], after[0])
self.assertAlmostEqual(after[1], 6.596913, places=5)
self.assertEqual(before[2], after[2])
self.assertEqual(before[3], after[3])
self.assertEqual(before[4], after[4])
def setUp(self):
super(TestFixedPairListTypesTabulated, self).setUp()
particle_list = [(1, 1, espressopp.Real3D(2.0, 2.0, 2.0)),
(2, 1, espressopp.Real3D(3.0, 2.0, 2.0)),
(3, 2, espressopp.Real3D(2.0, 3.0, 2.0)),
(4, 2, espressopp.Real3D(3.0, 3.0, 2.0))]
self.system.storage.addParticles(particle_list, *self.part_prop)
self.system.storage.decompose()
self.fpl1 = espressopp.FixedPairList(self.system.storage)
self.fpl1.addBonds([(1, 2), (3, 4)])
self.interaction = espressopp.interaction.FixedPairListTypesTabulated(
self.system, self.fpl1)
def test_normal(self):
# set up normal domain decomposition
nodeGrid = espressopp.tools.decomp.nodeGrid(espressopp.MPI.COMM_WORLD.size)
cellGrid = espressopp.tools.decomp.cellGrid((10, 10, 10), nodeGrid, 1.5, 0.3)
self.system.storage = espressopp.storage.DomainDecomposition(self.system, nodeGrid, cellGrid)
# add some particles (normal, coarse-grained particles only)
particle_list = [
(1, 1, 0, espressopp.Real3D(5.5, 5.0, 5.0), 1.0, 0),
(2, 1, 0, espressopp.Real3D(6.5, 5.0, 5.0), 1.0, 0),
(3, 1, 0, espressopp.Real3D(7.5, 5.0, 5.0), 1.0, 0),
]
self.system.storage.addParticles(particle_list, 'id', 'type', 'q', 'pos', 'mass','adrat')
self.system.storage.decompose()
# generate a verlet list
vl = espressopp.VerletList(self.system, cutoff=1.5)
# integrator
integrator = espressopp.integrator.VelocityVerlet(self.system)
integrator.dt = 0.01
# Langevin Thermostat
langevin = espressopp.integrator.LangevinThermostat(self.system)
langevin.gamma = 1.0
langevin.temperature = 1.0
langevin.adress = False
langevin.addExclusions([1])
integrator.addExtension(langevin)
# coordinates of particles before integration
before =[self.system.storage.getParticle(i).pos[j] for i in range(1,4) for j in range(3)]
# run ten steps
integrator.run(10)
# coordinates of particles after integration
after = [self.system.storage.getParticle(i).pos[j] for i in range(1,4) for j in range(3)]
# run checks (first particle excluded, hence it should not move. The other should have moved, however, as they feel the thermostat)
self.assertEqual(before[0], after[0])
self.assertEqual(before[1], after[1])
self.assertEqual(before[2], after[2])
self.assertNotEqual(before[3], after[3])
self.assertNotEqual(before[4], after[4])
self.assertNotEqual(before[5], after[5])
self.assertNotEqual(before[6], after[6])
self.assertNotEqual(before[7], after[7])
self.assertNotEqual(before[8], after[8])
def setUp(self):
super(TestFixedTripleListTypesTabulated, self).setUp()
# Test the energy computation. Distance between particles 1.0
particle_list = [(1, 1, espressopp.Real3D(1.0, 1.0, 2.0)),
(2, 2, espressopp.Real3D(0.0, 0.0, 2.0)),
(3, 1, espressopp.Real3D(1.0, 0.0, 2.0)),
(4, 3, espressopp.Real3D(1.0, 0.0, 2.0)),
(5, 3, espressopp.Real3D(1.0, 1.0, 2.0))]
self.system.storage.addParticles(particle_list, *self.part_prop)
self.system.storage.decompose()
self.ftl1 = espressopp.FixedTripleList(self.system.storage)
self.ftl1.addTriples([(1, 2, 3), (4, 2, 5)])
self.interaction = espressopp.interaction.FixedTripleListTypesTabulatedAngular(
self.system, self.ftl1)
def setUp(self):
super(TestFixedQuadrupleListTypesTabulated, self).setUp()
# Test the energy computation. Distance between particles 1.0
particle_list = [
(1, 1, espressopp.Real3D(0.0, 0.0, 0.0)),
(2, 1, espressopp.Real3D(2.0, 0.0, 0.0)),
(3, 1, espressopp.Real3D(2.0, 0.0, 2.0)),
(4, 1, espressopp.Real3D(2.0, 2.0, 2.0)),
]
self.system.storage.addParticles(particle_list, *self.part_prop)
self.system.storage.decompose()
self.fql1 = espressopp.FixedQuadrupleList(self.system.storage)
self.fql1.addQuadruples([(1, 2, 3, 4)])
self.interaction = espressopp.interaction.FixedQuadrupleListTypesTabulatedDihedral(self.system, self.fql1)
def test_densitycalculation(self):
# add some particles
particle_list = [
(1, 1, 0, espressopp.Real3D(5.5, 5.0, 5.0), 1.0, 0),
(2, 1, 0, espressopp.Real3D(6.5, 5.0, 5.0), 1.0, 0),
(3, 1, 0, espressopp.Real3D(7.5, 5.0, 5.0), 1.0, 0),
(4, 1, 0, espressopp.Real3D(8.5, 5.0, 5.0), 1.0, 0),
(5, 1, 0, espressopp.Real3D(9.5, 5.0, 5.0), 1.0, 0),
(6, 0, 0, espressopp.Real3D(5.5, 5.0, 5.0), 1.0, 1),
(7, 0, 0, espressopp.Real3D(6.5, 5.0, 5.0), 1.0, 1),
(8, 0, 0, espressopp.Real3D(7.5, 5.0, 5.0), 1.0, 1),
(9, 0, 0, espressopp.Real3D(8.5, 5.0, 5.0), 1.0, 1),
(10, 0, 0, espressopp.Real3D(9.5, 5.0, 5.0), 1.0, 1),
]
tuples = [(1, 6), (2, 7), (3, 8), (4, 9), (5, 10)]
self.system.storage.addParticles(particle_list, 'id', 'type', 'q',
'pos', 'mass', 'adrat')
ftpl = espressopp.FixedTupleListAdress(self.system.storage)
ftpl.addTuples(tuples)
self.system.storage.setFixedTuplesAdress(ftpl)
self.system.storage.decompose()
# generate a verlet list
vl = espressopp.VerletListAdress(self.system,
cutoff=1.5,
adrcut=1.5,
dEx=2.0,
dHy=1.0,
adrCenter=[5.0, 5.0, 5.0],
sphereAdr=False)
# initialize lambda values
integrator = espressopp.integrator.VelocityVerlet(self.system)
adress = espressopp.integrator.Adress(self.system, vl, ftpl)
integrator.addExtension(adress)
espressopp.tools.AdressDecomp(self.system, integrator)
# calculate density profile
densityprofile = espressopp.analysis.AdressDensity(self.system, vl)
densityprofile.addExclusions([8])
density_array = densityprofile.compute(5)
# run checks
self.assertAlmostEqual(density_array[0], 31.250000, places=5)
self.assertAlmostEqual(density_array[1], 4.464286, places=5)
self.assertAlmostEqual(density_array[2], 0.0, places=5)
self.assertAlmostEqual(density_array[3], 0.844595, places=5)
self.assertAlmostEqual(density_array[4], 0.512295, places=5)
def test_MSID(self):
# default system: NVE, dt=0.005, boxsize=(10,10,10)
system1, integrator1 = espressopp.standard_system.Default((10, 10, 10))
system2, integrator2 = espressopp.standard_system.Default((10, 10, 10))
# add 10 straight chains, particle ids are numbered from 0 to 99
system1.storage.addParticles(
[[cid * 10 + k, espressopp.Real3D(k, cid, 0)] for cid in range(10)
for k in range(10)], 'id', 'pos')
system1.storage.decompose()
msid1 = espressopp.analysis.MeanSquareInternalDist(system1,
chainlength=10,
start_pid=0)
msid1.gather()
res1 = msid1.compute()
# add 10 straight chains, particle ids are numbered from 1 to 100
system2.storage.addParticles(
[[cid * 10 + k + 1, espressopp.Real3D(k, cid, 0)]
for cid in range(10) for k in range(10)], 'id', 'pos')
system2.storage.decompose()
msid2 = espressopp.analysis.MeanSquareInternalDist(system2,
chainlength=10,
start_pid=1)
msid2.gather()
res2 = msid2.compute()
self.assertTrue(res1[0] == 1)
self.assertTrue(res1[1] == 4)
self.assertTrue(res1[2] == 9)
self.assertTrue(res1[3] == 16)
self.assertTrue(res1[4] == 25)
self.assertTrue(res1[5] == 36)
self.assertTrue(res1[6] == 49)
self.assertTrue(res1[7] == 64)
self.assertTrue(res1[8] == 81)
self.assertTrue(res2[0] == 1)
self.assertTrue(res2[1] == 4)
self.assertTrue(res2[2] == 9)
self.assertTrue(res2[3] == 16)
self.assertTrue(res2[4] == 25)
self.assertTrue(res2[5] == 36)
self.assertTrue(res2[6] == 49)
self.assertTrue(res2[7] == 64)
self.assertTrue(res2[8] == 81)
def test_particle_gets_into_region(self):
# Now run integrator, particle 3 will move into region after while
self.system.storage.modifyParticle(3, 'v', espressopp.Real3D(0, 0, 0.5))
for i in range(10):
self.integrator.run(100)
self.assertEqual(self.particle_region.size(), 3) # Particle 3 in the region
self.assertEqual(self.particle_region.get_particle_ids(), [[2, 3, 4]])
def setUp(self):
system, integrator = espressopp.standard_system.Default(box, rc=rc, skin=0.3, dt=0.005, temperature=1.)
system.storage.addParticles([[1,0,espressopp.Real3D(0,0,1)]],'id','type','pos')
system.storage.addParticles([[2,0,espressopp.Real3D(0,0,1+math.pow(2,1./6.))]],'id','type','pos')
system.storage.decompose()
# non-bonded LJcos potential
vl = espressopp.VerletList(system, cutoff=rc)
LJcos = espressopp.interaction.LJcos(phi=phi)
LJcosInter = espressopp.interaction.VerletListLJcos(vl)
LJcosInter.setPotential(type1=0, type2=0, potential=LJcos)
system.addInteraction(LJcosInter)
# set self
self.system = system
self.LJcosInter = LJcosInter
def get_velocity(system, n):
"""Obtain total velocity of a espressopp system."""
total_v = espressopp.Real3D(0.)
total_m = 0.
for i in range(int(n)):
p = system.storage.getParticle(i)
total_v += p.v*p.mass
total_m += p.mass
return total_v/total_m
