def register_cloudbutton():
""" Register Cloudbutton Backend to be called with
joblib.parallel_backend("cloudbutton") """
try:
from cloudbutton.util.joblib.cloudbutton_backend import CloudbuttonBackend
register_parallel_backend("cloudbutton", CloudbuttonBackend)
except ImportError:
msg = (
"To use the cloudbutton backend you must first install the plugin. "
"See https://github.com/Dahk/cloudbutton-backend.git "
"for instructions.")
raise ImportError(msg)
def test_template_submit(mock_file, mock_result, mock_pool):
# Verify that creating child jobs from a template looks like we expect
file_id = 17
mock_client = mock.Mock()
mock_file.return_value = file_id
factory = civis.parallel.make_backend_template_factory(
from_template_id=1234, client=mock_client)
n_calls = 3
register_parallel_backend('civis', factory)
with parallel_backend('civis'):
parallel = Parallel(n_jobs=5, pre_dispatch='n_jobs')
parallel(delayed(sqrt)(i**2) for i in range(n_calls))
assert mock_file.call_count == 3, "Upload 3 functions to run"
assert mock_pool().submit.call_count == n_calls, "Run 3 functions"
for this_call in mock_pool().submit.call_args_list:
assert this_call == mock.call(JOBLIB_FUNC_FILE_ID=file_id)
assert mock_result.call_count == 3, "Create 3 results"
def setupJoblib(self, ipp_profile='default', cluster_id=None):
"""
Method to set ipyparallel backend to a running ipcluster
Arguments
---------
ipp_profile : string
Name of ipcluster profile for the started ipcluster that will be set up
"""
import ipyparallel as ipp
from ipyparallel.joblib import IPythonParallelBackend
global joblib_rc, joblib_view, joblib_be
joblib_rc = ipp.Client(profile=ipp_profile, cluster_id=cluster_id)
joblib_view = joblib_rc.load_balanced_view()
joblib_be = IPythonParallelBackend(view=joblib_view)
register_parallel_backend('ipyparallel',
lambda: joblib_be,
make_default=True)
self.backend = 'ipyparallel'
def _test_retries_helper(num_failures, max_submit_retries, should_fail,
from_template_id, mock_file_to_civis, mock_result_cls,
mock_custom_exec_cls, mock_executor_cls):
mock_file_to_civis.return_value = 0
mock_result_cls.return_value.get.return_value = [123]
# A function to raise fake API errors the first num_failures times it is
# called.
counter = {'n_failed': 0}
def mock_submit(fn='', *args, **kwargs):
if counter['n_failed'] < num_failures:
counter['n_failed'] += 1
raise CivisAPIError(mock.MagicMock())
else:
return mock.MagicMock(spec=ContainerFuture)
mock_custom_exec_cls.return_value.submit.side_effect = mock_submit
mock_executor_cls.return_value.submit.side_effect = mock_submit
if from_template_id:
factory = civis.parallel.make_backend_template_factory(
from_template_id=from_template_id,
max_submit_retries=max_submit_retries,
client=create_client_mock())
else:
factory = civis.parallel.make_backend_factory(
max_submit_retries=max_submit_retries, client=create_client_mock())
register_parallel_backend('civis', factory)
with parallel_backend('civis'):
# NB: joblib >v0.11 relies on callbacks from the result object to
# decide when it's done consuming inputs. We've mocked the result
# object here, so Parallel must be called either with n_jobs=1 or
# pre_dispatch='all' to consume the inputs all at once.
parallel = Parallel(n_jobs=1, pre_dispatch='n_jobs')
if should_fail:
with pytest.raises(civis.parallel.JobSubmissionError):
parallel(delayed(sqrt)(i**2) for i in range(3))
else:
parallel(delayed(sqrt)(i**2) for i in range(3))
def _test_retries_helper(num_failures, max_submit_retries,
should_fail, from_template_id,
mock_file_to_civis, mock_result_cls,
mock_custom_exec_cls, mock_executor_cls):
mock_file_to_civis.return_value = 0
mock_result_cls.get.return_value = 123
# A function to raise fake API errors the first num_failures times it is
# called.
counter = {'n_failed': 0}
def mock_submit(fn='', *args, **kwargs):
if counter['n_failed'] < num_failures:
counter['n_failed'] += 1
raise CivisAPIError(mock.MagicMock())
else:
return mock.MagicMock(spec=ContainerFuture)
mock_custom_exec_cls.return_value.submit.side_effect = mock_submit
mock_executor_cls.return_value.submit.side_effect = mock_submit
if from_template_id:
factory = civis.parallel.make_backend_template_factory(
from_template_id=from_template_id,
max_submit_retries=max_submit_retries,
client=mock.Mock())
else:
factory = civis.parallel.make_backend_factory(
max_submit_retries=max_submit_retries, client=mock.Mock())
register_parallel_backend('civis', factory)
with parallel_backend('civis'):
parallel = Parallel(n_jobs=5, pre_dispatch='n_jobs')
if should_fail:
with pytest.raises(civis.parallel.JobSubmissionError):
parallel(delayed(sqrt)(i ** 2) for i in range(3))
else:
parallel(delayed(sqrt)(i ** 2) for i in range(3))
def test_template_submit(mock_file, mock_result, mock_pool):
# Verify that creating child jobs from a template looks like we expect
file_id = 17
mock_client = create_client_mock()
mock_file.return_value = file_id
factory = civis.parallel.make_backend_template_factory(
from_template_id=1234, client=mock_client)
n_calls = 3
register_parallel_backend('civis', factory)
with parallel_backend('civis'):
# NB: joblib >v0.11 relies on callbacks from the result object to
# decide when it's done consuming inputs. We've mocked the result
# object here, so Parallel must be called either with n_jobs=1 or
# pre_dispatch='all' to consume the inputs all at once.
parallel = Parallel(n_jobs=1, pre_dispatch='n_jobs')
parallel(delayed(sqrt)(i**2) for i in range(n_calls))
assert mock_file.call_count == 3, "Upload 3 functions to run"
assert mock_pool().submit.call_count == n_calls, "Run 3 functions"
for this_call in mock_pool().submit.call_args_list:
assert this_call == mock.call(JOBLIB_FUNC_FILE_ID=file_id)
assert mock_result.call_count == 3, "Create 3 results"
# will suffice for the actual working of this param
assert tree.min_impurity_decrease == 0.1
# mypy error: Variable "DEFAULT_JOBLIB_BACKEND" is not valid type
class MyBackend(DEFAULT_JOBLIB_BACKEND): # type: ignore
def __init__(self, *args, **kwargs):
self.count = 0
super().__init__(*args, **kwargs)
def start_call(self):
self.count += 1
return super().start_call()
joblib.register_parallel_backend('testing', MyBackend)
@pytest.mark.skipif(parse_version(joblib.__version__) < parse_version('0.12'),
reason='tests not yet supported in joblib <0.12')
@skip_if_no_parallel
def test_backend_respected():
clf = RandomForestClassifier(n_estimators=10, n_jobs=2)
with joblib.parallel_backend("testing") as (ba, n_jobs):
clf.fit(X, y)
assert ba.count > 0
# predict_proba requires shared memory. Ensure that's honored.
with joblib.parallel_backend("testing") as (ba, _):
self.futures.add(future)
@gen.coroutine
def callback_wrapper():
result = yield _wait([future])
self.futures.remove(future)
callback(result) # gets called in separate thread
self.client.loop.add_callback(callback_wrapper)
future.get = future.result # monkey patch to achieve AsyncResult API
return future
def abort_everything(self, ensure_ready=True):
# Tell the client to cancel any task submitted via this instance
# as joblib.Parallel will never access those results.
self.client.cancel(self.futures)
self.futures.clear()
DistributedBackend = DaskDistributedBackend
# Register the backend with any available versions of joblib
if joblib:
joblib.register_parallel_backend('distributed', DaskDistributedBackend)
joblib.register_parallel_backend('dask.distributed', DaskDistributedBackend)
if sk_joblib:
sk_joblib.register_parallel_backend('distributed', DaskDistributedBackend)
sk_joblib.register_parallel_backend('dask.distributed', DaskDistributedBackend)
self.futures.add(future)
@gen.coroutine
def callback_wrapper():
result = yield _wait([future])
self.futures.remove(future)
callback(result) # gets called in separate thread
self.client.loop.add_callback(callback_wrapper)
future.get = future.result # monkey patch to achieve AsyncResult API
return future
def abort_everything(self, ensure_ready=True):
# Tell the client to cancel any task submitted via this instance
# as joblib.Parallel will never access those results.
self.client.cancel(self.futures)
self.futures.clear()
DistributedBackend = DaskDistributedBackend
# Register the backend with any available versions of joblib
if joblib:
joblib.register_parallel_backend("distributed", DaskDistributedBackend)
joblib.register_parallel_backend("dask.distributed", DaskDistributedBackend)
if sk_joblib:
sk_joblib.register_parallel_backend("distributed", DaskDistributedBackend)
sk_joblib.register_parallel_backend("dask.distributed", DaskDistributedBackend)
parser = argparse.ArgumentParser()
parser.add_argument("-p",
"--profile",
default="ipy_profile",
help="Name of IPython profile to use")
args = parser.parse_args()
profile = args.profile
#prepare the engines
client = Client(profile=profile)
#The following command will make sure that each engine is running in
# the right working directory to access the custom function(s).
client[:].map(os.chdir, [FILE_DIR] * len(client))
bview = client.load_balanced_view()
register_parallel_backend('ipyparallel',
lambda: IPythonParallelBackend(view=bview))
s = 'len(client)={}, joblib.cpu_count()={}, mpr.cpu_count()={}'.\
format( len(client), joblib.cpu_count(), mpr.cpu_count())
print(s)
logging.basicConfig(filename=os.path.join(FILE_DIR, profile + '.log'),
filemode='w',
level=logging.DEBUG)
logging.info("number of CPUs found: {0}".format(cpu_count()))
logging.info("args.profile: {0}".format(profile))
logging.info("c.ids :{0}".format(str(client.ids)))
logging.info("{}".format(s))
from module_joblib_parallel_test import fun
param_grid = {
'max_depth': [10],
'min_samples_leaf': [1, 2],
'min_samples_split': [2],
}
# TODO : fix values appropriately
n_jobs = -1
nb_folds = 3
verbose = 100
backend = "dask"
fit_params = {}
scorer = metrics.f1_score
register_parallel_backend(backend, DaskDistributedBackend)
gs_estimator = GridSearchCV(estimator=estimator, param_grid=param_grid)
logging.info("Entering Dask Context")
with parallel_backend("dask"):
logging.info("Entered Dask Context")
logging.info(
"Running GridSearchCV.fit with %s as a parallel back-end" %
backend)
gs_estimator.fit(X, y)
logging.info("Done running GridSearchCV.fit")
"""Example showing how to use joblib-hadoop with an YARN cluster"""
from math import sqrt
from joblib import (Parallel, delayed,
register_parallel_backend, parallel_backend)
from joblibhadoop.yarn import YarnBackend
if __name__ == '__main__':
register_parallel_backend('yarn', YarnBackend)
# Run in parallel using Yarn backend
with parallel_backend('yarn', n_jobs=5):
print(Parallel(verbose=100)(
delayed(sqrt)(i**2) for i in range(100)))
# Should be executed in parallel locally
print(Parallel(verbose=100, n_jobs=5)(
delayed(sqrt)(i**2) for i in range(100)))
super().__init__(*args, **kwargs)
def start_call(self):
self.tqdm = tqdm(total=self._job_count, unit='tasks')
self._orig_print_progress = self.parallel.print_progress
self.parallel.print_progress = self.update_progress
def update_progress(self):
try:
self.tqdm.update(1)
except:
self._origin_print_progress()
def stop_call(self):
try:
self.tqdm.close()
except:
self._origin_print_progress()
def terminate(self):
try:
self.tqdm.close()
except:
pass
finally:
super().terminate()
#: register joblib parallel omegaml backend
joblib.register_parallel_backend('omegaml', OmegaRuntimeBackend)
def apply_async(self, func, *args, **kwargs):
callback = kwargs.pop('callback', None)
kwargs['pure'] = False
future = self.executor.submit(func, *args, **kwargs)
self.futures.add(future)
@gen.coroutine
def callback_wrapper():
result = yield _wait([future])
self.futures.remove(future)
callback(result) # gets called in separate thread
self.executor.loop.add_callback(callback_wrapper)
future.get = future.result # monkey patch to achieve AsyncResult API
return future
def abort_everything(self, ensure_ready=True):
# Tell the executor to cancel any task submitted via this instance
# as joblib.Parallel will never access those results.
self.executor.cancel(self.futures)
self.futures.clear()
# Register the backend with any available versions of joblib
if joblib:
joblib.register_parallel_backend('distributed', DistributedBackend)
if sk_joblib:
sk_joblib.register_parallel_backend('distributed', DistributedBackend)
