import os
import sys
from ase import Atoms, Atom, QuasiNewton, PickleTrajectory
from gpaw import *
from gpaw.cluster import Cluster
from gpaw.utilities.viewmol import ViewmolTrajectory, write_viewmol
s = Cluster([Atom('H'), Atom('H', (0, 0, 3))])
s.minimal_box(2)
c = GPAW(h=0.3, nbands=2)
s.set_calculator(c)
vfname = 'traj.vmol'
pfname = 'traj.pickle'
vmt = ViewmolTrajectory(s, vfname)
traj = PickleTrajectory(pfname, 'w', s)
#c.attach(vmt.add, 100000)
#sys.exit()
# Find the theoretical bond length:
dyn = QuasiNewton(s)
dyn.attach(traj.write)
dyn.attach(vmt.add)
dyn.run(fmax=0.05)
traj = PickleTrajectory(pfname, 'r')
vfname2 = 'pickle.vmol'
write_viewmol(traj, vfname2)
def run_slab(adsorbate, geometry, xc, code):
parameters = initialize_parameters(code, 0.1, h)
parameters['xc'] = xc
tag = 'Ru001'
if adsorbate != 'None':
name = adsorbate + tag
else:
name = tag
if geometry == 'fix':
slab = read_trajectory(code + '_' + name + '.traj')
else:
adsorbate_heights = {'N': 1.108, 'O': 1.257}
slab = hcp0001('Ru',
size=(2, 2, 4),
a=2.72,
c=1.58 * 2.72,
vacuum=5.0 + add_vacuum,
orthogonal=True)
slab.center(axis=2)
if adsorbate != 'None':
add_adsorbate(slab, adsorbate, adsorbate_heights[adsorbate], 'hcp')
slab.set_constraint(FixAtoms(mask=slab.get_tags() >= 3))
if code != 'elk':
parameters['nbands'] = 80
parameters['kpts'] = [4, 4, 1]
#
if code == 'gpaw':
from gpaw import GPAW as Calculator
from gpaw.mpi import rank
parameters['txt'] = code + '_' + name + '.txt'
from gpaw.mixer import Mixer, MixerSum
parameters['mixer'] = Mixer(beta=0.2, nmaxold=5, weight=100.0)
if code == 'dacapo':
from ase.calculators.dacapo import Dacapo as Calculator
rank = 0
parameters['txtout'] = code + '_' + name + '.txt'
if code == 'abinit':
from ase.calculators.abinit import Abinit as Calculator
rank = 0
parameters['label'] = code + '_' + name
if code == 'elk':
from ase.calculators.elk import ELK as Calculator
rank = 0
parameters['autokpt'] = True
elk_dir = 'elk_' + str(parameters['rgkmax'])
conv_param = 1.0
parameters['dir'] = elk_dir + '_' + name
#
calc = Calculator(**parameters)
#
slab.set_calculator(calc)
try:
if geometry == 'fix':
slab.get_potential_energy()
traj = PickleTrajectory(code + '_' + name + '.traj', mode='w')
traj.write(slab)
else:
opt = QuasiNewton(slab,
logfile=code + '_' + name + '.qn',
trajectory=code + '_' + name + '.traj')
opt.run(fmax=fmax)
except:
raise
import os
import sys
from ase import Atoms, Atom, QuasiNewton, PickleTrajectory
from gpaw import *
from gpaw.cluster import Cluster
from gpaw.utilities.viewmol import ViewmolTrajectory, write_viewmol
s = Cluster([Atom('H'), Atom('H',(0,0,3))])
s.minimal_box(2)
c = GPAW(h=0.3, nbands=2)
s.set_calculator(c)
vfname='traj.vmol'
pfname='traj.pickle'
vmt = ViewmolTrajectory(s, vfname)
traj = PickleTrajectory(pfname, 'w', s)
#c.attach(vmt.add, 100000)
#sys.exit()
# Find the theoretical bond length:
dyn = QuasiNewton(s)
dyn.attach(traj.write)
dyn.attach(vmt.add)
dyn.run(fmax=0.05)
traj = PickleTrajectory(pfname, 'r')
vfname2='pickle.vmol'
write_viewmol(traj, vfname2)
def run_molecule(adsorbate, geometry, xc, code):
parameters = initialize_parameters(code, 0.01, h)
parameters['xc'] = xc
molecules = {
'None': ('NO', 8),
'N': ('N2', 8),
'O': ('O2', 8),
}
for name, nbands in [molecules[adsorbate]]:
if code != 'elk':
parameters['nbands'] = nbands
if geometry == 'fix':
mol = read_trajectory(code + '_' + name + '.traj')
else:
mol = molecule(name)
mol.center(vacuum=3.0 + add_vacuum)
if name == 'NO':
mol.translate((0, 0.1, 0))
#
if code == 'gpaw':
from gpaw import GPAW as Calculator
from gpaw.mpi import rank
parameters['txt'] = code + '_' + name + '.txt'
from gpaw.mixer import Mixer, MixerSum
#if name == 'N2':
# parameters['mixer'] = Mixer(beta=0.1, nmaxold=5, metric='new', weight=100.0)
#else:
# #parameters['eigensolver'] = 'cg'
# parameters['mixer'] = MixerSum(beta=0.2, nmaxold=5, metric='new', weight=100.0)
if code == 'dacapo':
from ase.calculators.dacapo import Dacapo as Calculator
rank = 0
parameters['txtout'] = code + '_' + name + '.txt'
if code == 'abinit':
from ase.calculators.abinit import Abinit as Calculator
rank = 0
parameters['label'] = code + '_' + name
if code == 'elk':
from ase.calculators.elk import ELK as Calculator
rank = 0
elk_dir = 'elk_' + str(parameters['rgkmax'])
conv_param = 1.0
parameters['dir'] = elk_dir + '_' + name
#
calc = Calculator(**parameters)
#
mol.set_calculator(calc)
try:
if geometry == 'fix':
mol.get_potential_energy()
traj = PickleTrajectory(code + '_' + name + '.traj', mode='w')
traj.write(mol)
else:
opt = QuasiNewton(mol,
logfile=code + '_' + name + '.qn',
trajectory=code + '_' + name + '.traj')
opt.run(fmax=fmax)
except:
raise
