def classify(ctx, config, algo, job_number, total_jobs, resume):
cfg = parse_config_file(config)
df = csvfile_to_dataframe(cfg['dataset']['input_file'],
cfg['dataset']['date_format'])
nrow = get_image_attribute(df['filename'][0])[0]
classifier = joblib.load(algo)
# Split into lines and classify
job_lines = distribute_jobs(job_number, total_jobs, nrow)
logger.debug('Responsible for lines: {l}'.format(l=job_lines))
start_time = time.time()
logger.info('Starting to run lines')
for job_line in job_lines:
filename = get_output_name(cfg['dataset'], job_line)
if not os.path.exists(filename):
logger.warning('No model result found for line {l} '
'(file {f})'.format(l=job_line, f=filename))
pass
if resume and try_resume(filename):
logger.debug('Already processed line {l}'.format(l=job_line))
continue
logger.debug('Classifying line {l}'.format(l=job_line))
classify_line(filename, classifier)
logger.debug('Completed {n} lines in {m} minutes'.format(
n=len(job_lines),
m=round((time.time() - start_time) / 60.0, 2))
)
def test_distribute_jobs_interlaced(nrow, njob):
assigned = []
for i in range(njob):
assigned.extend(utils.distribute_jobs(i, njob, nrow, interlaced=True))
assigned = np.sort(np.asarray(assigned))
all_rows = np.arange(0, nrow)
np.testing.assert_equal(assigned, all_rows)
def batch(ctx, job_number, total_jobs, executor, block_size, force_overwrite):
""" Run a YATSM pipeline on a dataset in batch mode
The dataset is split into a number of subsets based on the structure of the
files in the dataset. The internal structure is determined by the block
sizes, or internal tile sizes, retrieved by GDAL. In the absence of the
dataset being tiled, GDAL will default to 256 pixels in the X dimension and
a value in the Y dimension that ensures that the block fits in 8K or less.
TODO: Users may override the size of the subsets using command line
options.
"""
config = options.fetch_config(ctx)
# Imports inside CLI for speed
from yatsm.io.utils import block_windows
from yatsm.utils import distribute_jobs
# TODO: remove when not debugging
import dask
dask.set_options(get=dask. async .get_sync)
# TODO: Better define how authoritative reader when using multiple datasets
# and choosing block shape (in config?)
# TODO: Allow user to specify block shape in config (?)
if block_size[0] and block_size[1]:
windows = list(block_windows(block_size, config.primary_reader.shape))
else:
windows = config.primary_reader.block_windows
job_idx = distribute_jobs(job_number, total_jobs, len(windows))
job_windows = [windows[i] for i in job_idx]
logger.debug('Working on {0} of {1} block windows'.format(
len(job_idx), len(windows)))
force_overwrite = (force_overwrite
or config['pipeline'].get('overwrite', False))
# TODO: iterate over windows assigned to ``job_id``
futures = {}
for idx, window in job_windows:
future = executor.submit(batch_block,
config=config,
readers=config.readers,
window=window,
overwrite=force_overwrite)
futures[future] = window
n_good, n_skip, n_fail = 0, 0, 0
for future in executor.as_completed(futures):
window = futures[future]
try:
result = future.result()
if isinstance(result, str):
logger.info("Wrote to: %s" % result)
n_good += 1
else:
n_skip += 1
time.sleep(1)
except KeyboardInterrupt:
logger.critical('Interrupting and shutting down')
executor.shutdown()
raise click.Abort()
except Exception:
logger.exception("Exception for window: {}".format(window))
n_fail += 1
raise # TODO: remove and log?
logger.info('Complete: %s' % n_good)
logger.info('Skipped: %s' % n_skip)
logger.info('Failed: %s' % n_fail)
def line(ctx, config, job_number, total_jobs,
resume, check_cache, do_not_run, verbose_yatsm):
if verbose_yatsm:
logger_algo.setLevel(logging.DEBUG)
# Parse config
cfg = parse_config_file(config)
if ('phenology' in cfg and cfg['phenology'].get('enable')) and not pheno:
click.secho('Could not import yatsm.phenology but phenology metrics '
'are requested', fg='red')
click.secho('Error: %s' % pheno_exception, fg='red')
raise click.Abort()
# Make sure output directory exists and is writable
output_dir = cfg['dataset']['output']
try:
os.makedirs(output_dir)
except OSError as e:
# File exists
if e.errno == 17:
pass
elif e.errno == 13:
click.secho('Cannot create output directory %s' % output_dir,
fg='red')
raise click.Abort()
if not os.access(output_dir, os.W_OK):
click.secho('Cannot write to output directory %s' % output_dir,
fg='red')
raise click.Abort()
# Test existence of cache directory
read_cache, write_cache = test_cache(cfg['dataset'])
logger.info('Job {i} of {n} - using config file {f}'.format(i=job_number,
n=total_jobs,
f=config))
df = csvfile_to_dataframe(cfg['dataset']['input_file'],
cfg['dataset']['date_format'])
df['image_ID'] = get_image_IDs(df['filename'])
# Get attributes of one of the images
nrow, ncol, nband, dtype = get_image_attribute(df['filename'][0])
# Calculate the lines this job ID works on
job_lines = distribute_jobs(job_number, total_jobs, nrow)
logger.debug('Responsible for lines: {l}'.format(l=job_lines))
# Calculate X feature input
dates = np.asarray(df['date'])
kws = {'x': dates}
kws.update(df.to_dict())
X = patsy.dmatrix(cfg['YATSM']['design_matrix'], kws)
cfg['YATSM']['design'] = X.design_info.column_name_indexes
# Form YATSM class arguments
fit_indices = np.arange(cfg['dataset']['n_bands'])
if cfg['dataset']['mask_band'] is not None:
fit_indices = fit_indices[:-1]
if cfg['YATSM']['reverse']:
X = np.flipud(X)
# Create output metadata to save
md = {
'YATSM': cfg['YATSM'],
cfg['YATSM']['algorithm']: cfg[cfg['YATSM']['algorithm']]
}
if cfg['phenology']['enable']:
md.update({'phenology': cfg['phenology']})
# Begin process
start_time_all = time.time()
for line in job_lines:
out = get_output_name(cfg['dataset'], line)
if resume:
try:
np.load(out)
except:
pass
else:
logger.debug('Already processed line %s' % line)
continue
logger.debug('Running line %s' % line)
start_time = time.time()
Y = read_line(line, df['filename'], df['image_ID'], cfg['dataset'],
ncol, nband, dtype,
read_cache=read_cache, write_cache=write_cache,
validate_cache=False)
if do_not_run:
continue
if cfg['YATSM']['reverse']:
Y = np.fliplr(Y)
output = []
for col in np.arange(Y.shape[-1]):
_Y = Y.take(col, axis=2)
# Mask
idx_mask = cfg['dataset']['mask_band'] - 1
valid = cyprep.get_valid_mask(
_Y,
cfg['dataset']['min_values'],
cfg['dataset']['max_values']).astype(bool)
valid *= np.in1d(_Y.take(idx_mask, axis=0),
cfg['dataset']['mask_values'],
invert=True).astype(np.bool)
_Y = np.delete(_Y, idx_mask, axis=0)[:, valid]
_X = X[valid, :]
_dates = dates[valid]
# Run model
cls = cfg['YATSM']['algorithm_cls']
algo_cfg = cfg[cfg['YATSM']['algorithm']]
yatsm = cls(lm=cfg['YATSM']['prediction_object'],
**algo_cfg.get('init', {}))
yatsm.px = col
yatsm.py = line
try:
yatsm.fit(_X, _Y, _dates, **algo_cfg.get('fit', {}))
except TSLengthException:
continue
if yatsm.record is None or len(yatsm.record) == 0:
continue
# Postprocess
if cfg['YATSM'].get('commission_alpha'):
yatsm.record = postprocess.commission_test(
yatsm, cfg['YATSM']['commission_alpha'])
for prefix, lm in zip(cfg['YATSM']['refit']['prefix'],
cfg['YATSM']['refit']['prediction_object']):
yatsm.record = postprocess.refit_record(yatsm, prefix, lm,
keep_regularized=True)
if cfg['phenology']['enable']:
pcfg = cfg['phenology']
ltm = pheno.LongTermMeanPhenology(**pcfg.get('init', {}))
yatsm.record = ltm.fit(yatsm, **pcfg.get('fit', {}))
output.extend(yatsm.record)
logger.debug(' Saving YATSM output to %s' % out)
np.savez(out,
record=np.array(output),
version=__version__,
metadata=md)
run_time = time.time() - start_time
logger.debug('Line %s took %ss to run' % (line, run_time))
logger.info('Completed {n} lines in {m} minutes'.format(
n=len(job_lines),
m=round((time.time() - start_time_all) / 60.0, 2)))
def test_distribute_jobs_sequential_onejob(nrow, njob):
with pytest.raises(ValueError):
utils.distribute_jobs(nrow, nrow, njob, interlaced=False)
def cache(ctx, config, job_number, total_jobs, update_pattern, interlace):
cfg = parse_config_file(config)
if not os.path.isdir(cfg['dataset']['cache_line_dir']):
os.makedirs(cfg['dataset']['cache_line_dir'])
df = csvfile_to_dataframe(cfg['dataset']['input_file'],
cfg['dataset']['date_format'])
df['image_IDs'] = get_image_IDs(df['filename'])
nrow, ncol, nband, dtype = reader.get_image_attribute(df['filename'][0])
# Determine lines to work on
job_lines = distribute_jobs(job_number, total_jobs, nrow,
interlaced=interlace)
logger.debug('Responsible for lines: {l}'.format(l=job_lines))
# Determine file reader
if cfg['dataset']['use_bip_reader']:
logger.debug('Reading in data from disk using BIP reader')
image_reader = reader.read_row_BIP
image_reader_kwargs = {'size': (ncol, nband),
'dtype': dtype}
else:
logger.debug('Reading in data from disk using GDAL')
image_reader = reader.read_row_GDAL
image_reader_kwargs = {}
# Attempt to update cache files
previous_cache = None
if update_pattern:
previous_cache = fnmatch.filter(
os.listdir(cfg['dataset']['cache_line_dir']), update_pattern)
if not previous_cache:
logger.warning('Could not find cache files to update with pattern '
'%s' % update_pattern)
else:
logger.debug('Found %s previously cached files to update' %
len(previous_cache))
for job_line in job_lines:
cache_filename = get_line_cache_name(cfg['dataset'], len(df),
job_line, nband)
logger.debug('Caching line {l} to {f}'.format(
l=job_line, f=cache_filename))
start_time = time.time()
# Find matching cache file
update = False
if previous_cache:
pattern = get_line_cache_pattern(job_line, nband, regex=False)
potential = fnmatch.filter(previous_cache, pattern)
if not potential:
logger.info('Found zero previous cache files for '
'line {l}'.format(l=job_line))
elif len(potential) > 1:
logger.info('Found more than one previous cache file for '
'line {l}. Keeping first'.format(l=job_line))
update = os.path.join(cfg['dataset']['cache_line_dir'],
potential[0])
else:
update = os.path.join(cfg['dataset']['cache_line_dir'],
potential[0])
logger.info('Updating from cache file {f}'.format(f=update))
if update:
update_cache_file(df['filename'], df['image_IDs'],
update, cache_filename,
job_line, image_reader, image_reader_kwargs)
else:
if cfg['dataset']['use_bip_reader']:
# Use BIP reader
logger.debug('Reading in data from disk using BIP reader')
Y = reader.read_row_BIP(df['filename'], job_line,
(ncol, nband), dtype)
else:
# Read in data just using GDAL
logger.debug('Reading in data from disk using GDAL')
Y = reader.read_row_GDAL(df['filename'], job_line)
write_cache_file(cache_filename, Y, df['image_IDs'])
logger.debug('Took {s}s to cache the data'.format(
s=round(time.time() - start_time, 2)))
