def get_energies(rootdir, reanalyze, verbose, detailed, sort):
    """
    Doc string.
    """
    if verbose:
        FORMAT = "%(relativeCreated)d msecs : %(message)s"
        logging.basicConfig(level=logging.INFO, format=FORMAT)

    if not detailed:
        drone = SimpleVaspToComputedEntryDrone(inc_structure=True)
    else:
        drone = VaspToComputedEntryDrone(inc_structure=True,
                                         data=["filename",
                                               "initial_structure"])

    ncpus = multiprocessing.cpu_count()
    logging.info("Detected {} cpus".format(ncpus))
    queen = BorgQueen(drone, number_of_drones=ncpus)
    if os.path.exists(SAVE_FILE) and not reanalyze:
        msg = "Using previously assimilated data from {}.".format(SAVE_FILE) \
            + " Use -f to force re-analysis."
        queen.load_data(SAVE_FILE)
    else:
        if ncpus > 1:
            queen.parallel_assimilate(rootdir)
        else:
            queen.serial_assimilate(rootdir)
        msg = "Analysis results saved to {} for faster ".format(SAVE_FILE) + \
              "subsequent loading."
        queen.save_data(SAVE_FILE)

    entries = queen.get_data()
    if sort == "energy_per_atom":
        entries = sorted(entries, key=lambda x: x.energy_per_atom)
    elif sort == "filename":
        entries = sorted(entries, key=lambda x: x.data["filename"])

    all_data = []
    for e in entries:
        if not detailed:
            delta_vol = "{:.2f}".format(e.data["delta_volume"] * 100)
        else:
            delta_vol = e.structure.volume / \
                e.data["initial_structure"].volume - 1
            delta_vol = "{:.2f}".format(delta_vol * 100)
        all_data.append((e.data["filename"].replace("./", ""),
                         re.sub("\s+", "", e.composition.formula),
                         "{:.5f}".format(e.energy),
                         "{:.5f}".format(e.energy_per_atom),
                         delta_vol))
    if len(all_data) > 0:
        headers = ("Directory", "Formula", "Energy", "E/Atom", "% vol chg")
        t = PrettyTable(headers)
        t.align["Directory"] = "l"
        for d in all_data:
            t.add_row(d)
        print(t)
        print(msg)
    else:
        print("No valid vasp run found.")

 def test_load_data(self):
     with warnings.catch_warnings():
         warnings.simplefilter("ignore")
         drone = VaspToComputedEntryDrone()
         queen = BorgQueen(drone)
         queen.load_data(os.path.join(test_dir, "assimilated.json"))
         self.assertEqual(len(queen.get_data()), 1)

 def run_task(self, fw_spec):
     """
     go through the measurement job dirs and 
     put the measurement jobs in the database
     """
     drone = MPINTVaspToDbTaskDrone(**self.get("dbase_params", {}))
     queen = BorgQueen(drone)  # , number_of_drones=ncpus)
     queen.serial_assimilate(self["measure_dir"])
     return FWAction()

 def setUpClass(cls):
     try:
         drone = VaspToDbTaskDrone(database="creator_unittest")
         queen = BorgQueen(drone)
         queen.serial_assimilate(os.path.join(test_dir, "db_test", "success_mp_aflow"))
         cls.conn = MongoClient()
         cls.qe = QueryEngine(database="creator_unittest")
     except ConnectionFailure:
         cls.qe = None
         cls.conn = None

    def _extract_MP_data(self,MP_data_filename):

        drone = VaspToComputedEntryDrone()
        queen = BorgQueen(drone, "dummy", 1)

        queen.load_data(MP_data_filename)
        computed_entries = queen.get_data()

        del drone
        del queen

        return computed_entries 

def get_energies(rootdir, reanalyze, verbose, pretty):
    if verbose:
        FORMAT = "%(relativeCreated)d msecs : %(message)s"
        logging.basicConfig(level=logging.INFO, format=FORMAT)
    drone = GaussianToComputedEntryDrone(inc_structure=True,
                                         parameters=['filename'])
    ncpus = multiprocessing.cpu_count()
    logging.info('Detected {} cpus'.format(ncpus))
    queen = BorgQueen(drone, number_of_drones=ncpus)
    if os.path.exists(save_file) and not reanalyze:
        msg = 'Using previously assimilated data from {}. ' + \
              'Use -f to force re-analysis'.format(save_file)
        queen.load_data(save_file)
    else:
        queen.parallel_assimilate(rootdir)
        msg = 'Results saved to {} for faster reloading.'.format(save_file)
        queen.save_data(save_file)

    entries = queen.get_data()
    entries = sorted(entries, key=lambda x: x.parameters['filename'])
    all_data = [(e.parameters['filename'].replace("./", ""),
                 re.sub("\s+", "", e.composition.formula),
                 "{}".format(e.parameters['charge']),
                 "{}".format(e.parameters['spin_mult']),
                 "{:.5f}".format(e.energy), "{:.5f}".format(e.energy_per_atom),
                 ) for e in entries]
    headers = ("Directory", "Formula", "Charge", "Spin Mult.", "Energy",
               "E/Atom")
    print(tabulate(all_data, headers=headers))
    print("")
    print(msg)

 def test_get_data(self):
     with warnings.catch_warnings():
         warnings.simplefilter("ignore")
         drone = VaspToComputedEntryDrone()
         self.queen = BorgQueen(drone, test_dir, 1)
         data = self.queen.get_data()
         self.assertEqual(len(data), 11)

class AbstractVaspDirCollParser(six.with_metaclass(abc.ABCMeta, object)):
    """Abstract base class for parsers of a collection of VASP directories

    To implement a new parser, inherit from this class and
    define the :meth:`compile` method.
    """

    def __init__(self, rootdir):
        """read vasp output via drone and extract all data

        :param rootdir: root directory containing collection of VASP dirs
        :type rootdir: str
        """
        from pymatgen.apps.borg.hive import SimpleVaspToComputedEntryDrone
        from pymatgen.apps.borg.queen import BorgQueen
        self.rootdir = rootdir
        self.drone = SimpleVaspToComputedEntryDrone(inc_structure=True)
        self.queen = BorgQueen(self.drone, rootdir, 1) # TODO: make sure uw2_si2 also works in parallel
        self.data = self.queen.get_data()

    def find_entry_for_directory(self, regex, oszicar=True):
        """returns the computed entry for a VASP directory matching the regex"""
        # scan in reverse alpha-numeric order under the assumption that
        # directories with the highest (local) index correspond to final VaspRun
        for entry in reversed(self.data):
            if fnmatch.fnmatch(entry.data['filename'], regex):
                if oszicar and not entry.energy < 1e10: continue
                return entry

    @abc.abstractmethod
    def compile(self):
        """compile the extracted data into a reduced dataset to be contributed"""
        return

def get_e_v(path):
    """
    uses pymatgen drone and borgqueen classes to get energy and 
    volume data from the given directory path.
    """
    volumes = []
    energies = []
    drone = MPINTVaspDrone(inc_structure=True)
    bg = BorgQueen(drone)
    # bg.parallel_assimilate(path)
    bg.serial_assimilate(path)
    allentries = bg.get_data()
    for e in allentries:
        if e:
            energies.append(e.energy)
            volumes.append(e.structure.lattice.volume)
    return (volumes, energies)

 def __init__(self, rootdir):
     """read vasp output via drone and extract all data
     
     :param rootdir: root directory containing collection of VASP dirs
     :type rootdir: str
     """
     self.rootdir = rootdir
     self.drone = SimpleVaspToComputedEntryDrone(inc_structure=True)
     self.queen = BorgQueen(self.drone, rootdir, 1) # TODO: make sure uw2_si2 also works in parallel
     self.data = self.queen.get_data()

class BorgQueenTest(unittest.TestCase):

    def setUp(self):
        drone = VaspToComputedEntryDrone()
        self.queen = BorgQueen(drone, test_dir, 1)

    def test_get_data(self):
        data = self.queen.get_data()
        self.assertEqual(len(data), 8)

    def test_load_data(self):
        drone = VaspToComputedEntryDrone()
        queen = BorgQueen(drone)
        queen.load_data(os.path.join(test_dir, "assimilated.json"))
        self.assertEqual(len(queen.get_data()), 1)

def extract_json_data():
    """
    Routine tries to read VASP data into pymatgen objects, and
    then extracts only the relevant data. This is then written to json,
    allowing the voluminous OUTCAR and vasprun.xml files to be discarded.
    """

    try:
        o  = Outcar('OUTCAR')
        found_outcar = True
    except:
        print('OUTCAR file missing or not readable')
        found_outcar = False

    try:
        vr = Vasprun('vasprun.xml')
        found_vasprun = True
    except:
        print('vasprun.xml file missing or not readable')
        found_vasprun = False


    dictionary_data  = {}

    if found_outcar:
        dictionary_data['OUTCAR'] =  o.as_dict()

    if found_vasprun:
    
        try:
            # try to extract a Computed Entry object, using 
            # pymatgen technology
            drone = VaspToComputedEntryDrone()
            queen = BorgQueen(drone, './', 1)
            entry = queen.get_data()[0]

            dictionary_data['ComputedEntry'] =  entry.as_dict()
        except:
            print('ComputedEntry COULD NOT BE EXTRACTED BY PYMATGEN...')


        """
        #  Do not extract DOS in run_data.json; this is too memory intensive!
        try:
            dictionary_data['DOS'] = vr.complete_dos.as_dict()
            pymatgen_dos_success = True
        except:
            print('DOS COULD NOT BE EXTRACTED BY PYMATGEN...')
            pymatgen_dos_success = False
        """


        relaxation_data = []
        for step in vr.ionic_steps:

            data_dict = {}
            for key in ['forces','structure','stress']:
                if key in step:
                    data_dict[key] = step[key]

            data_dict['electronic'] = step['electronic_steps'][-1]

            relaxation_data.append(data_dict)

        dictionary_data['relaxation'] = relaxation_data 


    if found_outcar or found_vasprun:
        pmg_dump(dictionary_data, 'run_data.json')

    return    

def get_energies(rootdir, reanalyze, verbose, detailed,
                 sort, formulaunit, debug, hull, threshold, args, templatestructure):

    ion_list = 'Novalue'
    ave_key_list = 'Novalue'
    threscount = 0

    """
    Doc string.
    """
    if (verbose and not debug):
        FORMAT = "%(relativeCreated)d msecs : %(message)s"
        logging.basicConfig(level=logging.INFO, format=FORMAT)

    elif debug:
        logging.basicConfig(level=logging.DEBUG)

    if not detailed:
        drone = SimpleVaspToComputedEntryDrone(inc_structure=True)
    else:
        drone = VaspToComputedEntryDrone(inc_structure=True,
                                         data=["filename",
                                               "initial_structure"])



    ncpus = multiprocessing.cpu_count()
    logging.info("Detected {} cpus".format(ncpus))
    queen = BorgQueen(drone, number_of_drones=ncpus)


    if os.path.exists(SAVE_FILE) and not reanalyze:
        msg = "Using previously assimilated data from {}.".format(SAVE_FILE) \
            + " Use -f to force re-analysis."
        queen.load_data(SAVE_FILE)
    else:
        if ncpus > 1:
            queen.parallel_assimilate(rootdir)
        else:
            queen.serial_assimilate(rootdir)
        msg = "Analysis results saved to {} for faster ".format(SAVE_FILE) + \
              "subsequent loading."
        queen.save_data(SAVE_FILE)

    entries = queen.get_data()
    if sort == "energy_per_atom":
        entries = sorted(entries, key=lambda x: x.energy_per_atom)
    elif sort == "filename":
        entries = sorted(entries, key=lambda x: x.data["filename"])

    # logging.debug('First Energy entry is {}'.format(entries[0]))

    base_energy = entries[0].energy
    logging.debug('Type of entries is: {}'.format(type(entries)))
    logging.debug('First Element of Entries is:{}'.format(entries[0]))

    # logging.debug('First Energy entry structure is {}'.format(entries[0].structure))

    xy_direction = int(args.XYdirection)
    tolerance = float(args.tolerance)


    if args.template:

        logging.debug('Temp Structure site info is: {}'.format(Na12(['Co','Mn'],['Na'],templatestructure,templatestructure,XY_Direction=xy_direction,tol=tolerance)))
        template_site_info = Na12(['Co','Mn'],['Na'],templatestructure,templatestructure,XY_Direction=xy_direction,tol=tolerance)

    all_data = []
    energy_diff = []

    threshold=float(threshold)

    Structure_info_dict = {}
    check_ion_seq = [args.dupion]


    for e in entries:

        if not detailed:
            delta_vol = "{:.2f}".format(e.data["delta_volume"] * 100)
        else:
            delta_vol = e.structure.volume / \
                e.data["initial_structure"].volume - 1
            delta_vol = "{:.2f}".format(delta_vol * 100)


        entry_path = e.data['filename'].rsplit('/',1)[0]

        entry_site_info = Na12(['Co','Mn'],['Na'],e.structure,e.structure,XY_Direction=xy_direction,tol=tolerance)

        logging.debug('Total Na site: {}'.format(entry_site_info['Total_Na_Site']))

        #Coordination extraction part
        # na_layer_site_fcoords = [site._fcoords for site in s if site.specie.symbol == "Na"]
        # if 'Cif_Structure' in e.data.keys():
        #     na_sites_fcoords = [site._fcoords for site in e.data['Cif_Structure'] if site.specie.symbol == 'Na']
        #     na_sites_fcoords_list_tuple = [tuple(coord) for coord in na_sites_fcoords]

        na_sites_fcoords = [site._fcoords for site in e.data['CONTCAR_Structure'] if site.specie.symbol == 'Na']
        na_sites_fcoords_list_tuple = [tuple(coord) for coord in na_sites_fcoords]
#.........这里部分代码省略.........

 def test_load_data(self):
     drone = VaspToComputedEntryDrone()
     queen = BorgQueen(drone)
     queen.load_data(os.path.join(test_dir, "assimilated.json"))
     self.assertEqual(len(queen.get_data()), 1)

 def setUp(self):
     drone = VaspToComputedEntryDrone()
     self.queen = BorgQueen(drone, test_dir, 1)

    def submit_vasp_directory(self, rootdir, authors, projects=None,
                              references='', remarks=None, master_data=None,
                              master_history=None, created_at=None,
                              ncpus=None):
        """
        Assimilates all vasp run directories beneath a particular
        directory using BorgQueen to obtain structures, and then submits thhem
        to the Materials Project as SNL files. VASP related meta data like
        initial structure and final energies are automatically incorporated.

        .. note::

            As of now, this MP REST feature is open only to a select group of
            users. Opening up submissions to all users is being planned for
            the future.

        Args:
            rootdir:
                Rootdir to start assimilating VASP runs from.
            authors:
                *List* of {"name":'', "email":''} dicts,
                *list* of Strings as 'John Doe <[email protected]>',
                or a single String with commas separating authors. The same
                list of authors should apply to all runs.
            projects:
                List of Strings ['Project A', 'Project B']. This applies to
                all structures.
            references:
                A String in BibTeX format. Again, this applies to all
                structures.
            remarks:
                List of Strings ['Remark A', 'Remark B']
            masterdata:
                A free form dict. Namespaced at the root level with an
                underscore, e.g. {"_materialsproject":<custom data>}. This
                data is added to all structures detected in the directory,
                in addition to other vasp data on a per structure basis.
            created_at:
                A datetime object
            ncpus:
                Number of cpus to use in using BorgQueen to assimilate
       """
        drone = VaspToComputedEntryDrone(inc_structure=True,
                                         data=["filename",
                                               "initial_structure"])
        queen = BorgQueen(drone, number_of_drones=ncpus)
        queen.parallel_assimilate(rootdir)

        structures = []
        metadata = []
        # TODO: Get histories from the data.
        for e in queen.get_data():
            structures.append(e.structure)
            m = {
                "_vasp": {
                    "parameters": e.parameters,
                    "final_energy": e.energy,
                    "final_energy_per_atom": e.energy_per_atom,
                    "initial_structure": e.data["initial_structure"].to_dict
                }
            }
            if master_data is not None:
                m.update(master_data)
            metadata.append(m)
        histories = None
        if master_history is not None:
            histories = master_history * len(structures)
        return self.submit_structures(
            structures, authors, projects=projects, references=references,
            remarks=remarks, data=metadata, histories=histories,
            created_at=created_at)

    def test_assimilate(self):
        """Borg assimilation code.
        This takes too long for a unit test!
        """
        simulate = True if VaspToDbTaskDroneTest.conn is None else False
        drone = VaspToDbTaskDrone(database="creator_unittest",
                                  simulate_mode=simulate,
                                  parse_dos=True, compress_dos=1)
        queen = BorgQueen(drone)
        queen.serial_assimilate(os.path.join(test_dir, 'db_test'))
        data = queen.get_data()
        self.assertEqual(len(data), 6)
        if VaspToDbTaskDroneTest.conn:
            db = VaspToDbTaskDroneTest.conn["creator_unittest"]
            data = db.tasks.find()
            self.assertEqual(data.count(), 6)
            warnings.warn("Actual db insertion mode.")

        for d in data:
            dir_name = d['dir_name']
            if dir_name.endswith("killed_mp_aflow"):
                self.assertEqual(d['state'], "killed")
                self.assertFalse(d['is_hubbard'])
                self.assertEqual(d['pretty_formula'], "SiO2")
            elif dir_name.endswith("stopped_mp_aflow"):
                self.assertEqual(d['state'], "stopped")
                self.assertEqual(d['pretty_formula'], "ThFe5P3")
            elif dir_name.endswith("success_mp_aflow"):
                self.assertEqual(d['state'], "successful")
                self.assertEqual(d['pretty_formula'], "TbZn(BO2)5")
                self.assertAlmostEqual(d['output']['final_energy'],
                                       -526.66747274, 4)
            elif dir_name.endswith("Li2O_aflow"):
                self.assertEqual(d['state'], "successful")
                self.assertEqual(d['pretty_formula'], "Li2O")
                self.assertAlmostEqual(d['output']['final_energy'],
                                       -14.31446494, 6)
                self.assertEqual(len(d["calculations"]), 2)
                self.assertEqual(d['input']['is_lasph'], False)
                self.assertEqual(d['input']['xc_override'], None)
                self.assertEqual(d["oxide_type"], "oxide")
            elif dir_name.endswith("Li2O"):
                self.assertEqual(d['state'], "successful")
                self.assertEqual(d['pretty_formula'], "Li2O")
                self.assertAlmostEqual(d['output']['final_energy'],
                                       -14.31337758, 6)
                self.assertEqual(len(d["calculations"]), 1)
                self.assertEqual(len(d["custodian"]), 1)
                self.assertEqual(len(d["custodian"][0]["corrections"]), 1)
            elif dir_name.endswith("Li2O_aflow_lasph"):
                self.assertEqual(d['state'], "successful")
                self.assertEqual(d['pretty_formula'], "Li2O")
                self.assertAlmostEqual(d['output']['final_energy'],
                                       -13.998171, 6)
                self.assertEqual(len(d["calculations"]), 2)
                self.assertEqual(d['input']['is_lasph'], True)
                self.assertEqual(d['input']['xc_override'], "PS")

        if VaspToDbTaskDroneTest.conn:
            warnings.warn("Testing query engine mode.")
            qe = QueryEngine(database="creator_unittest")
            self.assertEqual(qe.query().count(), 6)
            #Test mappings by query engine.
            for r in qe.query(criteria={"pretty_formula": "Li2O"},
                              properties=["dir_name", "energy",
                                          "calculations", "input"]):
                if r["dir_name"].endswith("Li2O_aflow"):
                    self.assertAlmostEqual(r['energy'], -14.31446494, 4)
                    self.assertEqual(len(r["calculations"]), 2)
                    self.assertEqual(r["input"]["is_lasph"], False)
                    self.assertEqual(r['input']['xc_override'], None)
                    self.assertEqual(d["oxide_type"], "oxide")
                elif r["dir_name"].endswith("Li2O"):
                    self.assertAlmostEqual(r['energy'],
                                           -14.31337758, 4)
                    self.assertEqual(len(r["calculations"]), 1)
                    self.assertEqual(r["input"]["is_lasph"], False)
                    self.assertEqual(r['input']['xc_override'], None)

            # Test lasph
            e = qe.get_entries({"dir_name":{"$regex":"lasph"}})
            self.assertEqual(len(e), 1)
            self.assertEqual(e[0].parameters["is_lasph"], True)
            self.assertEqual(e[0].parameters["xc_override"], "PS")

            # Test query one.
            d = qe.query_one(criteria={"pretty_formula": "TbZn(BO2)5"},
                             properties=["energy"])
            self.assertAlmostEqual(d['energy'], -526.66747274, 4)

            d = qe.get_entries_in_system(["Li", "O"])
            self.assertEqual(len(d), 3)
            self.assertIsInstance(d[0], ComputedEntry)
            self.assertEqual(d[0].data["oxide_type"], "oxide")

            s = qe.get_structure_from_id(d[0].entry_id)
            self.assertIsInstance(s, Structure)
            self.assertEqual(s.formula, "Li2 O1")

            self.assertIsInstance(qe.get_dos_from_id(d[0].entry_id), CompleteDos)

    def test_assimilate(self):
        simulate = True if VaspToDbTaskDroneTest.conn is None else False
        drone = VaspToDbTaskDrone(database="creator_unittest",
                                  simulate_mode=simulate)
        queen = BorgQueen(drone)
        queen.serial_assimilate(os.path.join(test_dir, 'db_test'))
        data = queen.get_data()
        self.assertEqual(len(data), 5)
        if VaspToDbTaskDroneTest.conn:
            db = VaspToDbTaskDroneTest.conn["creator_unittest"]
            data = db.tasks.find()
            self.assertEqual(data.count(), 5)
            warnings.warn("Actual db insertion mode.")

        for d in data:
            dir_name = d['dir_name']
            if dir_name.endswith("killed_mp_aflow"):
                self.assertEqual(d['state'], "killed")
                self.assertFalse(d['is_hubbard'])
                self.assertEqual(d['pretty_formula'], "SiO2")
            elif dir_name.endswith("stopped_mp_aflow"):
                self.assertEqual(d['state'], "stopped")
                self.assertEqual(d['pretty_formula'], "ThFe5P3")
            elif dir_name.endswith("success_mp_aflow"):
                self.assertEqual(d['state'], "successful")
                self.assertEqual(d['pretty_formula'], "TbZn(BO2)5")
                self.assertAlmostEqual(d['output']['final_energy'],
                                       -526.66747274, 4)
            elif dir_name.endswith("Li2O_aflow"):
                self.assertEqual(d['state'], "successful")
                self.assertEqual(d['pretty_formula'], "Li2O")
                self.assertAlmostEqual(d['output']['final_energy'],
                                       -14.31446494, 6)
                self.assertEqual(len(d["calculations"]), 2)
            elif dir_name.endswith("Li2O"):
                self.assertEqual(d['state'], "successful")
                self.assertEqual(d['pretty_formula'], "Li2O")
                self.assertAlmostEqual(d['output']['final_energy'],
                                       -14.31337758, 6)
                self.assertEqual(len(d["calculations"]), 1)
                self.assertEqual(len(d["custodian"]), 1)
                self.assertEqual(len(d["custodian"][0]["corrections"]), 1)

        if VaspToDbTaskDroneTest.conn:
            warnings.warn("Testing query engine mode.")
            qe = QueryEngine(database="creator_unittest")
            self.assertEqual(qe.query().count(), 5)
            #Test mappings by query engine.
            for r in qe.query(criteria={"pretty_formula": "Li2O"},
                              properties=["dir_name", "energy",
                                          "calculations"]):
                if r["dir_name"].endswith("Li2O_aflow"):
                    self.assertAlmostEqual(r['energy'], -14.31446494, 4)
                    self.assertEqual(len(r["calculations"]), 2)
                elif r["dir_name"].endswith("Li2O"):
                    self.assertAlmostEqual(r['energy'],
                                           -14.31337758, 4)
                    self.assertEqual(len(r["calculations"]), 1)

            # Test query one.
            d = qe.query_one(criteria={"pretty_formula": "TbZn(BO2)5"},
                             properties=["energy"])
            self.assertAlmostEqual(d['energy'], -526.66747274, 4)

            d = qe.get_entries_in_system(["Li", "O"])
            self.assertEqual(len(d), 2)
            self.assertIsInstance(d[0], ComputedEntry)

            s = qe.get_structure_from_id(d[0].entry_id)
            self.assertIsInstance(s, Structure)
            self.assertEqual(s.formula, "Li2 O1")

from __future__ import division, unicode_literals, print_function

from mpinterfaces.database import MPINTVaspToDbTaskDrone
from pymatgen.apps.borg.queen import BorgQueen
#import multiprocessing

additional_fields = {"author":"kiran"} #"doi":"10.1063/1.4865107"
drone = MPINTVaspToDbTaskDrone(host="127.0.0.1", port=27017,
                               database="vasp", collection="collection_name",
                               user="username", password="password",
                               additional_fields=additional_fields)

ncpus = 4 #multiprocessing.cpu_count()
queen = BorgQueen(drone, number_of_drones=ncpus)
queen.parallel_assimilate('path_to_vasp_calculation_folders')