def worker(db_settings, entry_id, workdir, target_forces, relaxator_params):
pcdb = get_database(db_settings)
pcm_log.info('[%s]: Starting relaxation. Target forces: %7.3e' %
(str(entry_id), target_forces))
if pcdb.is_locked(entry_id):
return
else:
pcdb.lock(entry_id)
structure = pcdb.get_structure(entry_id)
structure = structure.scale()
print('relaxator_params', relaxator_params)
relaxer = IonRelaxation(structure,
workdir=workdir,
target_forces=target_forces,
waiting=False,
binary=relaxator_params['binary'],
encut=1.3,
kp_grid=None,
kp_density=1E4,
relax_cell=True,
max_calls=10)
print('relaxing on:', relaxer.workdir)
relaxer.run(relaxator_params['nmpiparal'])
pcm_log.info('[%s]: Finished relaxation. Target forces: %7.3e' %
(str(entry_id), target_forces))
filename = workdir + os.sep + 'OUTCAR'
if os.path.isfile(filename):
forces, stress, total_energy = relaxer.get_forces_stress_energy()
if forces is not None:
magnitude_forces = np.apply_along_axis(np.linalg.norm, 1, forces)
print('Forces: Max: %9.3e Avg: %9.3e' %
(np.max(magnitude_forces), np.average(magnitude_forces)))
print('Stress: ', np.max(np.abs(stress.flatten())))
if forces is None:
pcm_log.error('No forces found on %s' % filename)
if stress is None:
pcm_log.error('No stress found on %s' % filename)
if total_energy is None:
pcm_log.error('No total_energy found on %s' % filename)
new_structure = relaxer.get_final_geometry()
if forces is not None and stress is not None and total_energy is not None and new_structure is not None:
pcm_log.info('[%s]: Updating properties' % str(entry_id))
pcdb.update(entry_id, structure=new_structure)
te = total_energy
pcdb.entries.update({'_id': entry_id}, {
'$set': {
'status.relaxation':
'succeed',
'status.target_forces':
target_forces,
'properties.forces':
generic_serializer(forces),
'properties.stress':
generic_serializer(stress),
'properties.energy':
te,
'properties.energy_pa':
te / new_structure.natom,
'properties.energy_pf':
te / new_structure.get_composition().gcd
}
})
# Fingerprint
# Update the fingerprints only if the two structures are really different
diffnatom = structure.natom != new_structure.natom
diffcell = np.max(
np.abs((structure.cell - new_structure.cell).flatten()))
diffreduced = np.max(
np.abs((structure.reduced - new_structure.reduced).flatten()))
if diffnatom != 0 or diffcell > 1E-7 or diffreduced > 1E-7:
analysis = StructureAnalysis(new_structure, radius=50)
x, ys = analysis.fp_oganov(delta=0.01, sigma=0.01)
fingerprint = {'_id': entry_id}
for k in ys:
atomic_number1 = atomic_number(new_structure.species[k[0]])
atomic_number2 = atomic_number(new_structure.species[k[1]])
pair = '%06d' % min(atomic_number1 * 1000 + atomic_number2,
atomic_number2 * 1000 + atomic_number1)
fingerprint[pair] = list(ys[k])
if pcdb.db.fingerprints.find_one({'_id': entry_id}) is None:
pcdb.db.fingerprints.insert(fingerprint)
else:
pcdb.db.fingerprints.update({'_id': entry_id}, fingerprint)
else:
pcm_log.debug('Original and new structures are very similar.')
pcm_log.debug('Max diff cell: %10.3e' % np.max(
np.absolute(
(structure.cell - new_structure.cell).flatten())))
if structure.natom == new_structure.natom:
pcm_log.debug(
'Max diff reduced coordinates: %10.3e' % np.max(
np.absolute((structure.reduced -
new_structure.reduced).flatten())))
else:
pcdb.entries.update({'_id': entry_id},
{'$set': {
'status.relaxation': 'failed'
}})
pcm_log.error(
'Bad data after relaxation. Tagging relaxation as failed')
else:
pcm_log.error('ERROR: File not found %s' % filename)
pcm_log.info('[%s]: Unlocking the entry' % str(entry_id))
pcdb.unlock(entry_id)
def run(self):
irun = 0
score = INITIAL_SCORE
dftb = DFTBplus()
dftb.initialize(workdir=self.workdir,
structure=self.structure,
kpoints=self.kpoints)
dftb.set_slater_koster(search_paths=self.slater_path)
dftb.basic_input()
dftb.driver['LatticeOpt'] = False
# Decreasing the target_forces to avoid the final static
# calculation of raising too much the forces after symmetrization
dftb.driver['MaxForceComponent'] = self.target_forces
dftb.driver['ConvergentForcesOnly'] = True
dftb.driver['MaxSteps'] = 100
dftb.hamiltonian['MaxSCCIterations'] = 20
dftb.set_inputs()
print(('Launching DFTB+ with target force of %9.2E ' %
dftb.driver['MaxForceComponent']))
dftb.run()
if self.waiting:
dftb.runner.wait()
while True:
if dftb.runner is not None and dftb.runner.poll() is not None:
pcm_log.info('Execution completed. Return code %d' %
dftb.runner.returncode)
stdo = read_dftb_stdout(filename=self.workdir + os.sep +
'dftb_stdout.log')
good_forces, good_stress = self.relaxation_status()
if 'max_force' in stdo:
print((
'Converged: %s\t Max Force: %9.3e\t MaxForceComponent: %9.3e'
% (stdo['ion_convergence'], stdo['max_force'],
self.target_forces)))
filename = dftb.workdir + os.sep + 'detailed.out'
if not os.path.exists(filename):
pcm_log.error('Could not find ' + filename)
break
if not good_forces and not good_stress:
# This happens when all the SCC are completed without convergence
dftb.driver['ConvergentForcesOnly'] = False
else:
dftb.driver['ConvergentForcesOnly'] = True
score = self.quality(score)
pcm_log.debug('Score : %d Good Forces: %s Good Stress: %s' %
(score, good_forces, good_stress))
if score < 0:
if good_forces and good_stress:
pcm_log.debug('Convergence: Internals + Cell')
dftb.driver['MovedAtoms'] = '1:-1'
dftb.driver['LatticeOpt'] = True
elif not good_forces and good_stress:
pcm_log.debug('Convergence: Internals')
dftb.driver['LatticeOpt'] = False
dftb.driver['MovedAtoms'] = '1:-1'
elif good_forces and not good_stress:
pcm_log.debug('Convergence: Internals + Cell')
dftb.driver['LatticeOpt'] = True
dftb.driver['MovedAtoms'] = '1:-1'
dftb.structure = read_geometry_gen(dftb.workdir + os.sep +
'geo_end.gen')
# lets change the positions if the score have lowered to -10
if score == -10 and self.forced:
dftb.structure.positions += 0.2 * np.random.rand(
dftb.structure.natom, 3) - 0.1
dftb.structure.positions2reduced()
dftb.structure.set_cell(1.1 * dftb.structure.cell)
if score == -1 and self.forced:
dftb.structure = dftb.structure.random_cell(
dftb.structure.composition)
print('RANDOM STRUCTURE')
print((dftb.structure))
score = INITIAL_SCORE
dftb.structure.save_json(dftb.workdir + os.sep +
'structure_current.json')
if self.symmetrize:
dftb.structure = symmetrize(dftb.structure)
self.structure = dftb.structure
dftb.get_geometry()
dftb.roll_outputs(irun)
dftb.set_inputs()
irun += 1
print(('Launching DFTB+ with target force of %9.2E ' %
dftb.driver['MaxForceComponent']))
dftb.run()
if self.waiting:
dftb.runner.wait()
else:
pcm_log.debug('Final static calculation')
dftb.structure = self.get_final_geometry()
dftb.structure.save_json(dftb.workdir + os.sep +
'structure_final.json')
if self.symmetrize:
dftb.structure = symmetrize(dftb.structure)
self.structure = dftb.structure
dftb.get_geometry()
dftb.roll_outputs(irun)
dftb.options['CalculateForces'] = True
dftb.driver = {}
dftb.set_inputs()
print('Launching DFTB+ with static evaluation of forces ')
dftb.run()
if self.waiting:
dftb.runner.wait()
while dftb.runner.poll() is None:
dftb.run_status()
time.sleep(10)
print('Completed Static run')
forces, stress, total_energy = self.get_forces_stress_energy(
)
if stress is None or forces is None or total_energy is None:
pcm_log.debug(
'Null Forces, Stress or Energy, relaxing and exiting'
)
dftb.basic_input()
dftb.driver['LatticeOpt'] = False
# Decreasing the target_forces to avoid the final static
# calculation of raising too much the forces after symmetrization
dftb.driver[
'MaxForceComponent'] = 0.9 * self.target_forces
dftb.driver['ConvergentForcesOnly'] = False
dftb.driver['MaxSteps'] = 10
dftb.hamiltonian['MaxSCCIterations'] = 50
print((dftb.driver))
dftb.set_inputs()
dftb.run()
if self.waiting:
dftb.runner.wait()
while dftb.runner.poll() is None:
time.sleep(10)
print(('FINAL:', read_detailed_out(filename=filename)))
forces, stress, total_energy = self.get_forces_stress_energy(
)
if stress is None or forces is None or total_energy is None:
pcm_log.debug(
'Again Null Forces, Stress or Energy, Randomizing Structure'
)
dftb.structure = dftb.structure.random_cell(
dftb.structure.composition)
print('RANDOM STRUCTURE')
print((dftb.structure))
score = INITIAL_SCORE
else:
break
else:
break
else:
pcm_log.debug('ID: %s' % os.path.basename(self.workdir))
filename = dftb.workdir + os.sep + 'dftb_stdout.log'
if os.path.exists(filename):
stdo = read_dftb_stdout(filename=filename)
print(('Number of steps:', len(stdo['Geometry_Steps'])))
if len(stdo['Geometry_Steps']) > 1:
line = 'Energy behavior: '
prev_energy = stdo['Geometry_Steps'][0][
'Total Energy']['value']
line += ' %7.3f ' % prev_energy
for step in stdo['Geometry_Steps'][1:]:
new_energy = step['Total Energy']['value']
if prev_energy > new_energy:
line += '>'
else:
line += '<'
prev_energy = new_energy
finene = stdo['Geometry_Steps'][-1]['Total Energy'][
'value']
line += ' %7.3f' % finene
print(line)
time.sleep(10)
def outcar_parser(self):
for istr in ['NKPTS', 'NBANDS', 'NEDOS', 'NIONS', 'NGX', 'NGY', 'NGZ', 'NGXF', 'NGYF', 'NGZF', 'ISPIN']:
redata = re.findall(istr + r'\s*=\s*(\d+)', self.data)
if len(redata) > 0:
self.array_sizes[istr] = int(redata[0])
# pcm_log.info('Array sizes : ' + str(self.array_sizes))
self.species = re.findall(r'POTCAR\s*:\s*[\w_]+\s*(\w+)', self.data)
self.species = self.species[:int(len(self.species) / 2)]
# pcm_log.info('Number of species (= number of POTCARs):' + str(self.species))
pos_forces = re.findall(r'TOTAL-FORCE \(eV/Angst\)\s*-*\s*([-.\d\s]+)\s+-{2}', self.data)
pos_forces = np.array([x.split() for x in pos_forces], dtype=float)
if len(pos_forces) > 0 and len(pos_forces[-1]) % 6 == 0:
pos_forces.shape = (len(pos_forces), -1, 6)
forces = pos_forces[:, :, 3:]
positions = pos_forces[:, :, :3]
pcm_log.debug('Positions from OUTCAR: %d iterations' % len(positions))
pcm_log.debug('Forces from OUTCAR: %d iterations' % len(forces))
self.forces = forces
self.positions = positions
self.array_sizes['NIONSTEPS'] = len(self.forces)
pcm_log.debug('Number of Ionic steps: ' + str(self.array_sizes['NIONSTEPS']))
else:
print('Forces and Positions could not be parsed : ', pos_forces.shape)
print('pos_forces =\n%s ' % pos_forces)
fermi = re.findall(r'E-fermi\s+:\s+([-.\d]+)', self.data)
fermi = np.array(fermi, dtype=float)
# pcm_log.debug('Fermi Level(eV): ' + str(fermi))
self.fermi = fermi
# This regex covers the entire information for each electronic iteration.
# The expression in the middle, catch everything but ('>' greater than)
# The final part catch the value of the energy
# It returns a list of tuples in the form [(ionic iter, Energy (elect. Iter), ...]
energy = re.findall(r'Iteration\s*(\d+)\s*\(\s*(\d+)\)[-+*/=():.\s\d\w]+>0\)\s*=\s*([-.\d]+)', self.data)
# pcm_log.debug('Energy(eV) [(ionic iter, Energy (elect. Iter)),...]: ' + str(energy))
self.energies = []
index = None
for ienergy in energy:
self.energies.append([int(ienergy[0]), int(ienergy[1]), float(ienergy[2])])
level0 = 0
level1 = 0
for i in self.energies:
if i[0] > level0:
self.last_energy = i[2]
level0 = i[0]
elif i[0] == level0 and i[1] > level1:
self.last_energy = i[2]
level1 = i[1]
pattern = r"k-point([\s\d]+):([\d\s.+-]+)\s*band No.\s*band energies\s*occupation\s*\n([\d\w\s.+-]+)\n\n"
bands = re.findall(pattern, self.data)
bands_dict = {}
for iband in bands:
try:
ikpt = int(iband[0])
kpt_pos = [float(x) for x in iband[1].split()]
kpt_eigenvals = np.array([float(x) for x in iband[2].split()[:3 * self.array_sizes['NBANDS']]])
kpt_eigenvals.reshape((-1, 3))
bands_dict[ikpt] = {'position': kpt_pos, 'eigenvalues': kpt_eigenvals}
except ValueError:
print('Error parsing bands')
self.bands = bands_dict
if False and 'NIONSTEPS' in self.array_sizes:
if len(bands) != self.array_sizes['NBANDS'] * self.array_sizes['ISPIN'] * self.array_sizes['NKPTS'] \
* self.array_sizes['NIONSTEPS']:
pcm_log.debug('NBANDS: %s != ISPIN: %s x NKPTS: %s x NIONSTEPS: %s' % (self.array_sizes['NBANDS'],
self.array_sizes['ISPIN'],
self.array_sizes['NKPTS'],
self.array_sizes['NIONSTEPS']))
# pcm_log.info('Bands : ' + str(bands))
stress = re.findall(r'in\s+kB ([-*.\s\d]+)external', self.data)
# Converted from kBar to GPa
if stress:
stress = 0.1 * np.array([x.split() if '*' not in x else 6 * [float('nan')] for x in stress], dtype=float)
stress.reshape((-1, 6))
nionsteps = len(stress)
self.stress = np.zeros((nionsteps, 3, 3))
self.stress[:, 0, 0] = stress[:, 0]
self.stress[:, 1, 1] = stress[:, 1]
self.stress[:, 2, 2] = stress[:, 2]
self.stress[:, 0, 1] = stress[:, 3]
self.stress[:, 1, 2] = stress[:, 4]
self.stress[:, 0, 2] = stress[:, 5]
self.stress[:, 1, 0] = stress[:, 3]
self.stress[:, 2, 1] = stress[:, 4]
self.stress[:, 2, 0] = stress[:, 5]
# pcm_log.info('Stress (GPa):\n ' + str(self.stress))
charge = re.findall(r'total\s*charge\s*#\s*of\s*ion\s*s\s*p\s*d\s*tot\s*-+([-.\s\d]+)\s--', self.data)
if charge:
charge = np.array([x.split() for x in charge], dtype=float)
charge.shape = (len(charge), -1, 5)
if len(charge) == 2:
if np.all(charge[0] != charge[1]):
pcm_log.error('Bad Charge')
charge = charge[0, :, 1:]
self.charge['s'] = list(charge[:, 0])
self.charge['p'] = list(charge[:, 1])
self.charge['d'] = list(charge[:, 2])
self.charge['total'] = list(charge[:, 3])
# pcm_log.debug('Charge :' + str(self.charge))
# Processing Final
self.free_energy()
self.iterations()
def worker(db_settings, entry_id, workdir, target_forces, relaxator_params):
pcdb = get_database(db_settings)
pcm_log.info('[%s]: Starting relaxation. Target forces: %7.3e' % (str(entry_id), target_forces))
if pcdb.is_locked(entry_id):
return
else:
pcdb.lock(entry_id)
structure = pcdb.get_structure(entry_id)
structure = structure.scale()
print('relaxator_params', relaxator_params)
relaxer = IonRelaxation2(structure, workdir=workdir, target_forces=target_forces, waiting=False,
binary=relaxator_params['binary'], encut=1.3, kp_grid=None, kp_density=1E4,
relax_cell=True)
print('relaxing on:', relaxer.workdir)
relaxer.run(relaxator_params['nmpiparal'])
pcm_log.info('[%s]: Finished relaxation. Target forces: %7.3e' % (str(entry_id), target_forces))
filename = workdir + os.sep + 'OUTCAR'
if os.path.isfile(filename):
forces, stress, total_energy = relaxer.get_forces_stress_energy()
if forces is not None:
magnitude_forces = np.apply_along_axis(np.linalg.norm, 1, forces)
print('Forces: Max: %9.3e Avg: %9.3e' % (np.max(magnitude_forces), np.average(magnitude_forces)))
print('Stress: ', np.max(np.abs(stress.flatten())))
if forces is None:
pcm_log.error('No forces found on %s' % filename)
if stress is None:
pcm_log.error('No stress found on %s' % filename)
if total_energy is None:
pcm_log.error('No total_energy found on %s' % filename)
new_structure = relaxer.get_final_geometry()
if forces is not None and stress is not None and total_energy is not None and new_structure is not None:
pcm_log.info('[%s]: Updating properties' % str(entry_id))
pcdb.update(entry_id, structure=new_structure)
te = total_energy
pcdb.entries.update({'_id': entry_id},
{'$set': {'status.relaxation': 'succeed',
'status.target_forces': target_forces,
'properties.forces': generic_serializer(forces),
'properties.stress': generic_serializer(stress),
'properties.energy': te,
'properties.energy_pa': te / new_structure.natom,
'properties.energy_pf': te / new_structure.get_composition().gcd}})
# Fingerprint
# Update the fingerprints only if the two structures are really different
diffnatom = structure.natom != new_structure.natom
diffcell = np.max(np.abs((structure.cell - new_structure.cell).flatten()))
diffreduced = np.max(np.abs((structure.reduced - new_structure.reduced).flatten()))
if diffnatom != 0 or diffcell > 1E-7 or diffreduced > 1E-7:
analysis = StructureAnalysis(new_structure, radius=50)
x, ys = analysis.fp_oganov(delta=0.01, sigma=0.01)
fingerprint = {'_id': entry_id}
for k in ys:
atomic_number1 = atomic_number(new_structure.species[k[0]])
atomic_number2 = atomic_number(new_structure.species[k[1]])
pair = '%06d' % min(atomic_number1 * 1000 + atomic_number2,
atomic_number2 * 1000 + atomic_number1)
fingerprint[pair] = list(ys[k])
if pcdb.db.fingerprints.find_one({'_id': entry_id}) is None:
pcdb.db.fingerprints.insert(fingerprint)
else:
pcdb.db.fingerprints.update({'_id': entry_id}, fingerprint)
else:
pcm_log.debug('Original and new structures are very similar.')
pcm_log.debug('Max diff cell: %10.3e' % np.max(np.absolute((structure.cell -
new_structure.cell).flatten())))
if structure.natom == new_structure.natom:
pcm_log.debug('Max diff reduced coordinates: %10.3e' %
np.max(np.absolute((structure.reduced - new_structure.reduced).flatten())))
else:
pcdb.entries.update({'_id': entry_id}, {'$set': {'status.relaxation': 'failed'}})
pcm_log.error('Bad data after relaxation. Tagging relaxation as failed')
else:
pcm_log.error('ERROR: File not found %s' % filename)
pcm_log.info('[%s]: Unlocking the entry' % str(entry_id))
pcdb.unlock(entry_id)
def outcar_parser(self):
for istr in ['NKPTS', 'NBANDS', 'NEDOS', 'NIONS', 'NGX', 'NGY', 'NGZ', 'NGXF', 'NGYF', 'NGZF', 'ISPIN']:
redata = re.findall(istr + r'\s*=\s*(\d+)', self.data)
if len(redata) > 0:
self.array_sizes[istr] = int(redata[0])
# pcm_log.info('Array sizes : ' + str(self.array_sizes))
self.species = re.findall(r'POTCAR\s*:\s*[\w_]+\s*(\w+)', self.data)
self.species = self.species[:int(len(self.species) / 2)]
# pcm_log.info('Number of species (= number of POTCARs):' + str(self.species))
pos_forces = re.findall(r'TOTAL-FORCE \(eV/Angst\)\s*-*\s*([-.\d\s]+)\s+-{2}', self.data)
pos_forces = np.array([x.split() for x in pos_forces], dtype=float)
if len(pos_forces) > 0 and len(pos_forces[-1]) % 6 == 0:
pos_forces.shape = (len(pos_forces), -1, 6)
forces = pos_forces[:, :, 3:]
positions = pos_forces[:, :, :3]
pcm_log.debug('Positions from OUTCAR: %d iterations' % len(positions))
pcm_log.debug('Forces from OUTCAR: %d iterations' % len(forces))
self.forces = forces
self.positions = positions
self.array_sizes['NIONSTEPS'] = len(self.forces)
pcm_log.debug('Number of Ionic steps: ' + str(self.array_sizes['NIONSTEPS']))
else:
print(('Forces and Positions could not be parsed : ', pos_forces.shape))
print(('pos_forces =\n%s ' % pos_forces))
fermi = re.findall(r'E-fermi\s+:\s+([-.\d]+)', self.data)
fermi = np.array(fermi, dtype=float)
# pcm_log.debug('Fermi Level(eV): ' + str(fermi))
self.fermi = fermi
# This regex covers the entire information for each electronic iteration.
# The expression in the middle, catch everything but ('>' greater than)
# The final part catch the value of the energy
# It returns a list of tuples in the form [(ionic iter, Energy (elect. Iter), ...]
energy = re.findall(r'Iteration\s*(\d+)\s*\(\s*(\d+)\)[-+*/=():.\s\d\w]+>0\)\s*=\s*([-.\d]+)', self.data)
# pcm_log.debug('Energy(eV) [(ionic iter, Energy (elect. Iter)),...]: ' + str(energy))
self.energies = []
index = None
for ienergy in energy:
self.energies.append([int(ienergy[0]), int(ienergy[1]), float(ienergy[2])])
level0 = 0
level1 = 0
for i in self.energies:
if i[0] > level0:
self.last_energy = i[2]
level0 = i[0]
elif i[0] == level0 and i[1] > level1:
self.last_energy = i[2]
level1 = i[1]
pattern = r"k-point([\s\d]+):([\d\s.+-]+)\s*band No.\s*band energies\s*occupation\s*\n([\d\w\s.+-]+)\n\n"
bands = re.findall(pattern, self.data)
bands_dict = {}
for iband in bands:
try:
ikpt = int(iband[0])
kpt_pos = [float(x) for x in iband[1].split()]
kpt_eigenvals = np.array([float(x) for x in iband[2].split()[:3 * self.array_sizes['NBANDS']]])
kpt_eigenvals.reshape((-1, 3))
bands_dict[ikpt] = {'position': kpt_pos, 'eigenvalues': kpt_eigenvals}
except ValueError:
print('Error parsing bands')
self.bands = bands_dict
if False and 'NIONSTEPS' in self.array_sizes:
if len(bands) != self.array_sizes['NBANDS'] * self.array_sizes['ISPIN'] * self.array_sizes['NKPTS'] \
* self.array_sizes['NIONSTEPS']:
pcm_log.debug('NBANDS: %s != ISPIN: %s x NKPTS: %s x NIONSTEPS: %s' % (self.array_sizes['NBANDS'],
self.array_sizes['ISPIN'],
self.array_sizes['NKPTS'],
self.array_sizes['NIONSTEPS']))
# pcm_log.info('Bands : ' + str(bands))
stress = re.findall(r'in\s+kB ([-*.\s\d]+)external', self.data)
# Converted from kBar to GPa
if stress:
stress = 0.1 * np.array([x.split() if '*' not in x else 6 * [float('nan')] for x in stress], dtype=float)
stress.reshape((-1, 6))
nionsteps = len(stress)
self.stress = np.zeros((nionsteps, 3, 3))
self.stress[:, 0, 0] = stress[:, 0]
self.stress[:, 1, 1] = stress[:, 1]
self.stress[:, 2, 2] = stress[:, 2]
self.stress[:, 0, 1] = stress[:, 3]
self.stress[:, 1, 2] = stress[:, 4]
self.stress[:, 0, 2] = stress[:, 5]
self.stress[:, 1, 0] = stress[:, 3]
self.stress[:, 2, 1] = stress[:, 4]
self.stress[:, 2, 0] = stress[:, 5]
# pcm_log.info('Stress (GPa):\n ' + str(self.stress))
charge = re.findall(r'total\s*charge\s*#\s*of\s*ion\s*s\s*p\s*d\s*tot\s*-+([-.\s\d]+)\s--', self.data)
if charge:
charge = np.array([x.split() for x in charge], dtype=float)
charge.shape = (len(charge), -1, 5)
if len(charge) == 2:
if np.all(charge[0] != charge[1]):
pcm_log.error('Bad Charge')
charge = charge[0, :, 1:]
self.charge['s'] = list(charge[:, 0])
self.charge['p'] = list(charge[:, 1])
self.charge['d'] = list(charge[:, 2])
self.charge['total'] = list(charge[:, 3])
# pcm_log.debug('Charge :' + str(self.charge))
# Processing Final
self.free_energy()
self.iterations()
def run(self):
irun = 0
score = INITIAL_SCORE
dftb = DFTBplus()
dftb.initialize(workdir=self.workdir, structure=self.structure, kpoints=self.kpoints)
dftb.set_slater_koster(search_paths=self.slater_path)
dftb.basic_input()
dftb.driver['LatticeOpt'] = False
# Decreasing the target_forces to avoid the final static
# calculation of raising too much the forces after symmetrization
dftb.driver['MaxForceComponent'] = self.target_forces
dftb.driver['ConvergentForcesOnly'] = True
dftb.driver['MaxSteps'] = 100
dftb.hamiltonian['MaxSCCIterations'] = 20
dftb.set_inputs()
print('Launching DFTB+ with target force of %9.2E ' % dftb.driver['MaxForceComponent'])
dftb.run()
if self.waiting:
dftb.runner.wait()
while True:
if dftb.runner is not None and dftb.runner.poll() is not None:
pcm_log.info('Execution completed. Return code %d' % dftb.runner.returncode)
stdo = read_dftb_stdout(filename=self.workdir + os.sep + 'dftb_stdout.log')
good_forces, good_stress = self.relaxation_status()
if 'max_force' in stdo:
print('Converged: %s\t Max Force: %9.3e\t MaxForceComponent: %9.3e' % (stdo['ion_convergence'],
stdo['max_force'],
self.target_forces))
filename = dftb.workdir + os.sep + 'detailed.out'
if not os.path.exists(filename):
pcm_log.error('Could not find ' + filename)
break
if not good_forces and not good_stress:
# This happens when all the SCC are completed without convergence
dftb.driver['ConvergentForcesOnly'] = False
else:
dftb.driver['ConvergentForcesOnly'] = True
score = self.quality(score)
pcm_log.debug('Score : %d Good Forces: %s Good Stress: %s' % (score, good_forces, good_stress))
if score < 0:
if good_forces and good_stress:
pcm_log.debug('Convergence: Internals + Cell')
dftb.driver['MovedAtoms'] = '1:-1'
dftb.driver['LatticeOpt'] = True
elif not good_forces and good_stress:
pcm_log.debug('Convergence: Internals')
dftb.driver['LatticeOpt'] = False
dftb.driver['MovedAtoms'] = '1:-1'
elif good_forces and not good_stress:
pcm_log.debug('Convergence: Internals + Cell')
dftb.driver['LatticeOpt'] = True
dftb.driver['MovedAtoms'] = '1:-1'
dftb.structure = read_geometry_gen(dftb.workdir + os.sep + 'geo_end.gen')
# lets change the positions if the score have lowered to -10
if score == -10 and self.forced:
dftb.structure.positions += 0.2 * np.random.rand(dftb.structure.natom, 3) - 0.1
dftb.structure.positions2reduced()
dftb.structure.set_cell(1.1 * dftb.structure.cell)
if score == -1 and self.forced:
dftb.structure = dftb.structure.random_cell(dftb.structure.composition)
print('RANDOM STRUCTURE')
print(dftb.structure)
score = INITIAL_SCORE
dftb.structure.save_json(dftb.workdir + os.sep + 'structure_current.json')
if self.symmetrize:
dftb.structure = symmetrize(dftb.structure)
self.structure = dftb.structure
dftb.get_geometry()
dftb.roll_outputs(irun)
dftb.set_inputs()
irun += 1
print('Launching DFTB+ with target force of %9.2E ' % dftb.driver['MaxForceComponent'])
dftb.run()
if self.waiting:
dftb.runner.wait()
else:
pcm_log.debug('Final static calculation')
dftb.structure = self.get_final_geometry()
dftb.structure.save_json(dftb.workdir + os.sep + 'structure_final.json')
if self.symmetrize:
dftb.structure = symmetrize(dftb.structure)
self.structure = dftb.structure
dftb.get_geometry()
dftb.roll_outputs(irun)
dftb.options['CalculateForces'] = True
dftb.driver = {}
dftb.set_inputs()
print('Launching DFTB+ with static evaluation of forces ')
dftb.run()
if self.waiting:
dftb.runner.wait()
while dftb.runner.poll() is None:
dftb.run_status()
time.sleep(10)
print('Completed Static run')
forces, stress, total_energy = self.get_forces_stress_energy()
if stress is None or forces is None or total_energy is None:
pcm_log.debug('Null Forces, Stress or Energy, relaxing and exiting')
dftb.basic_input()
dftb.driver['LatticeOpt'] = False
# Decreasing the target_forces to avoid the final static
# calculation of raising too much the forces after symmetrization
dftb.driver['MaxForceComponent'] = 0.9 * self.target_forces
dftb.driver['ConvergentForcesOnly'] = False
dftb.driver['MaxSteps'] = 10
dftb.hamiltonian['MaxSCCIterations'] = 50
print(dftb.driver)
dftb.set_inputs()
dftb.run()
if self.waiting:
dftb.runner.wait()
while dftb.runner.poll() is None:
time.sleep(10)
print('FINAL:', read_detailed_out(filename=filename))
forces, stress, total_energy = self.get_forces_stress_energy()
if stress is None or forces is None or total_energy is None:
pcm_log.debug('Again Null Forces, Stress or Energy, Randomizing Structure')
dftb.structure = dftb.structure.random_cell(dftb.structure.composition)
print('RANDOM STRUCTURE')
print(dftb.structure)
score = INITIAL_SCORE
else:
break
else:
break
else:
pcm_log.debug('ID: %s' % os.path.basename(self.workdir))
filename = dftb.workdir + os.sep + 'dftb_stdout.log'
if os.path.exists(filename):
stdo = read_dftb_stdout(filename=filename)
print('Number of steps:', len(stdo['Geometry_Steps']))
if len(stdo['Geometry_Steps']) > 1:
line = 'Energy behavior: '
prev_energy = stdo['Geometry_Steps'][0]['Total Energy']['value']
line += ' %7.3f ' % prev_energy
for step in stdo['Geometry_Steps'][1:]:
new_energy = step['Total Energy']['value']
if prev_energy > new_energy:
line += '>'
else:
line += '<'
prev_energy = new_energy
finene = stdo['Geometry_Steps'][-1]['Total Energy']['value']
line += ' %7.3f' % finene
print(line)
time.sleep(10)