def post_process( out_physical, metadata ):
"""
application: how to handle/save results of minimizer
input: PhysicalData (solution), list (user-defined output of minim)
output: None
"""
out_physical.archive( 'final_solution.ncf' )
with open( os.path.join( archive.get_archive_path(), 'ans_details.pickle' ), 'w' ) as f:
pickle.dump( metadata, f )
return None
def archive(self, dirname=None):
"""
extension: save copy of files to archive/experiment directory
input: string or None
output: None
notes: this will overwrite any clash of namespace.
if input is None file will write to experiment directory
else it will create dirname in experiment directory and save there.
"""
save_path = get_archive_path()
if dirname is not None:
save_path = os.path.join(save_path, dirname)
ensure_path(save_path, inc_file=False)
for record in self.file_data.values():
source = record['actual']
dest = os.path.join(save_path, record['archive'])
ncf.copy_compress(source, dest)
return None
def archive(self, name=None, force_lite=False):
"""
extension: save a copy of data to archive/experiment directory
input: string or None, boolean
output: None
notes: this will overwrite any clash in namespace.
if input is None file will use default name.
output file is in acceptable format for from_file method.
force_lite will archive obs-lite file (no weight_grid).
"""
save_path = get_archive_path()
if name is None:
name = self.archive_name
save_path = os.path.join(save_path, name)
domain = deepcopy(self.grid_attr)
domain['SDATE'] = np.int32(dt.replace_date('<YYYYMMDD>',
dt.start_date))
domain['EDATE'] = np.int32(dt.replace_date('<YYYYMMDD>', dt.end_date))
if force_lite is True:
domain['is_lite'] = True
else:
domain['is_lite'] = self.is_lite
obs_list = []
for i in range(self.length):
odict = deepcopy(self.misc_meta[i])
odict['value'] = self.value[i]
odict['uncertainty'] = self.uncertainty[i]
odict['offset_term'] = self.offset_term[i]
odict['lite_coord'] = self.lite_coord[i]
if domain['is_lite'] is False:
odict['weight_grid'] = self.weight_grid[i]
obs_list.append(odict)
archive_list = [domain] + obs_list
fh.save_list(archive_list, save_path)
return None
o_unc = np.array(d.ObservationData.uncertainty)
obs_pert = d.ObservationData(np.random.normal(o_val, o_unc))
unk = transform(phys_true, d.UnknownData)
unk_pert = d.UnknownData(np.random.normal(unk.get_vector(), 1.0))
phys_pert = transform(unk_pert, d.PhysicalData)
phys_true.archive(prior_true_archive)
phys_pert.archive(prior_pert_archive)
obs_true.archive(obs_true_archive)
obs_pert.archive(obs_pert_archive)
cmaq.wipeout_fwd()
# Output the target cost value for this test
bg_path = os.path.join(archive.get_archive_path(), prior_true_archive)
user.background = d.PhysicalData.from_file(bg_path)
obs_path = os.path.join(archive.get_archive_path(), obs_pert_archive)
user.observed = d.ObservationData.from_file(obs_path)
init_vec = transform(user.background, d.UnknownData).get_vector()
cost = main.cost_func(init_vec)
logger.info('No. obs = {:}'.format(o_val.size))
logger.info('Target cost = {:}'.format(cost))
#replace current background/prior and observations with perturbed versions.
bg_path = os.path.join(archive.get_archive_path(), prior_pert_archive)
user.background = d.PhysicalData.from_file(bg_path)
obs_path = os.path.join(archive.get_archive_path(), obs_pert_archive)
user.observed = d.ObservationData.from_file(obs_path)
#run minimizer
import time
import numpy as np
import cPickle as pickle
import context
import fourdvar.user_driver as user
import fourdvar.datadef as d
from fourdvar._transform import transform
import fourdvar.util.archive_handle as archive
import fourdvar.params.archive_defn as archive_defn
import fourdvar.util.cmaq_handle as cmaq
archive_defn.experiment = 'tmp_grad_verbose'
archive_defn.desc_name = ''
archive_path = archive.get_archive_path()
print 'saving results in:\n{}'.format(archive_path)
print 'get observations in ObservationData format'
st = time.time()
observed = user.get_observed()
print 'completed in {}s'.format(int(time.time() - st))
observed.archive('observed.pickle')
print 'archived.'
print 'get prior in PhysicalData format'
st = time.time()
prior_phys = user.get_background()
print 'completed in {}s'.format(int(time.time() - st))
prior_phys.archive('prior.ncf')
print 'archived.'
def archive(self, path=None):
"""
extension: save a copy of data to archive/experiment directory
input: string or None
output: None
notes: this will overwrite any clash in namespace.
if input is None file will write default archive_name.
output is a netCDF file compatible with from_file method.
"""
unc = lambda spc: spc + '_UNC'
save_path = get_archive_path()
if path is None:
path = self.archive_name
save_path = os.path.join(save_path, path)
if os.path.isfile(save_path):
os.remove(save_path)
#construct netCDF file
attr_dict = {
'SDATE': np.int32(dt.replace_date('<YYYYDDD>', dt.start_date)),
'EDATE': np.int32(dt.replace_date('<YYYYDDD>', dt.end_date))
}
minute, second = divmod(self.tsec, 60)
hour, minute = divmod(minute, 60)
day, hour = divmod(hour, 24)
hms = int('{:02}{:02}{:02}'.format(hour, minute, second))
attr_dict['TSTEP'] = np.array([np.int32(day), np.int32(hms)])
var_list = ''.join(['{:<16}'.format(s) for s in self.spcs])
attr_dict['VAR-LIST'] = var_list
dim_dict = {'ROW': self.nrows, 'COL': self.ncols}
root = ncf.create(path=save_path,
attr=attr_dict,
dim=dim_dict,
is_root=True)
if inc_icon is True:
icon_dim = {'LAY': self.nlays_icon}
icon_var = {}
emis_dim = {'LAY': self.nlays_emis, 'TSTEP': None}
emis_var = {}
for spc in self.spcs:
if inc_icon is True:
icon_var[spc] = ('f4', (
'LAY',
'ROW',
'COL',
), self.icon[spc])
icon_var[unc(spc)] = ('f4', ('LAY', 'ROW', 'COL'),
self.icon_unc[spc])
emis_var[spc] = ('f4', ('TSTEP', 'LAY', 'ROW', 'COL'),
self.emis[spc])
emis_var[unc(spc)] = ('f4', ('TSTEP', 'LAY', 'ROW', 'COL'),
self.emis_unc[spc])
if inc_icon is True:
ncf.create(parent=root,
name='icon',
dim=icon_dim,
var=icon_var,
is_root=False)
ncf.create(parent=root,
name='emis',
dim=emis_dim,
var=emis_var,
is_root=False)
root.close()
return None