コード例 #1
0
# Pseudopotentials
dft_pps             = ['O.BFD.upf','H.BFD.upf']
qmc_pps             = ['O.BFD.xml','H.BFD.xml']

# Job Definitions (MPI Tasks, MP Threading, PBS Queue, Time, etc.)
scf_job             = Job(app=pwscf,serial=True)
p2q_job             = Job(app=pw2qmcpack,serial=True)
opt_job             = Job(threads=4,app=qmcpack,serial=True)
dmc_job             = Job(threads=4,app=qmcpack,serial=True)

# System To Be Simulated
structure = Structure()
structure.read_xyz('H2O.xyz')
structure.bounding_box(
    box             = 'cubic',
    scale           = 1.5
    )
structure.add_kmesh(
    kgrid           = (1,1,1),
    kshift          = (0,0,0)
)
H2O_molecule = PhysicalSystem(
    structure       = structure,
    net_charge      = 0,
    net_spin        = 0,
    O               = 6,
    H               = 1,
    )

sims = []
コード例 #2
0
    sleep=3,  # check on runs every 'sleep' seconds
    generate_only=0,  # only make input files
    status_only=0,  # only show status of runs
    machine='node16',  # local machine is 16 core workstation
)

#generate the C20 physical system
# specify the xyz file
structure_file = 'c20.cage.xyz'
# make an empty structure object
structure = Structure()
# read in the xyz file
structure.read_xyz(structure_file)
# place a bounding box around the structure
structure.bounding_box(
    box='cubic',  # cube shaped cell
    scale=1.5  # 50% extra space
)
# make it a gamma point cell
structure.add_kmesh(
    kgrid=(1, 1, 1),  # Monkhorst-Pack grid
    kshift=(0, 0, 0)  # and shift
)
# add electronic information
c20 = PhysicalSystem(
    structure=structure,  # C20 structure
    net_charge=0,  # net charge in units of e
    net_spin=0,  # net spin in units of e-spin
    C=4  # C has 4 valence electrons
)

#generate the simulations for the qmc workflow
コード例 #3
0
ファイル: c20_example.py プロジェクト: Paul-St-Young/myNexus
    status_only   = 0,                   # only show status of runs
    machine       = 'node16',            # local machine is 16 core workstation
    )



#generate the C20 physical system
# specify the xyz file
structure_file = 'c20.cage.xyz'
# make an empty structure object
structure = Structure()
# read in the xyz file
structure.read_xyz(structure_file)
# place a bounding box around the structure
structure.bounding_box(
    box   = 'cubic',         # cube shaped cell
    scale = 1.5              # 50% extra space
    )
# make it a gamma point cell
structure.add_kmesh(
    kgrid      = (1,1,1),    # Monkhorst-Pack grid
    kshift     = (0,0,0)     # and shift
    )
# add electronic information
c20 = PhysicalSystem(
    structure = structure,   # C20 structure
    net_charge = 0,          # net charge in units of e
    net_spin   = 0,          # net spin in units of e-spin
    C          = 4           # C has 4 valence electrons
    )