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#
# Licensed under the Apache License, Version 2.0 (the "License"). You
# may not use this file except in compliance with the License. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file is
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
# ANY KIND, either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
from __future__ import absolute_import
import json
import time
import pytest
from sagemaker import KMeans, KMeansModel
from sagemaker.serverless import ServerlessInferenceConfig
from sagemaker.utils import unique_name_from_base
from tests.integ import datasets, TRAINING_DEFAULT_TIMEOUT_MINUTES
from tests.integ.timeout import timeout, timeout_and_delete_endpoint_by_name
@pytest.fixture
def training_set():
return datasets.one_p_mnist()
def test_kmeans(sagemaker_session, cpu_instance_type, training_set):
job_name = unique_name_from_base("kmeans")
with timeout(minutes=TRAINING_DEFAULT_TIMEOUT_MINUTES):
kmeans = KMeans(
role="SageMakerRole",
instance_count=1,
instance_type=cpu_instance_type,
k=10,
sagemaker_session=sagemaker_session,
)
kmeans.init_method = "random"
kmeans.max_iterations = 1
kmeans.tol = 1
kmeans.num_trials = 1
kmeans.local_init_method = "kmeans++"
kmeans.half_life_time_size = 1
kmeans.epochs = 1
kmeans.center_factor = 1
kmeans.eval_metrics = ["ssd", "msd"]
assert kmeans.hyperparameters() == dict(
init_method=kmeans.init_method,
local_lloyd_max_iter=str(kmeans.max_iterations),
local_lloyd_tol=str(kmeans.tol),
local_lloyd_num_trials=str(kmeans.num_trials),
local_lloyd_init_method=kmeans.local_init_method,
half_life_time_size=str(kmeans.half_life_time_size),
epochs=str(kmeans.epochs),
extra_center_factor=str(kmeans.center_factor),
k=str(kmeans.k),
eval_metrics=json.dumps(kmeans.eval_metrics),
force_dense="True",
)
kmeans.fit(kmeans.record_set(training_set[0][:100]), job_name=job_name)
with timeout_and_delete_endpoint_by_name(job_name, sagemaker_session):
model = KMeansModel(
kmeans.model_data, role="SageMakerRole", sagemaker_session=sagemaker_session
)
predictor = model.deploy(1, cpu_instance_type, endpoint_name=job_name)
result = predictor.predict(training_set[0][:10])
assert len(result) == 10
for record in result:
assert record.label["closest_cluster"] is not None
assert record.label["distance_to_cluster"] is not None
predictor.delete_model()
with pytest.raises(Exception) as exception:
sagemaker_session.sagemaker_client.describe_model(ModelName=model.name)
assert "Could not find model" in str(exception.value)
def test_async_kmeans(sagemaker_session, cpu_instance_type, training_set):
job_name = unique_name_from_base("kmeans")
with timeout(minutes=5):
kmeans = KMeans(
role="SageMakerRole",
instance_count=1,
instance_type=cpu_instance_type,
k=10,
sagemaker_session=sagemaker_session,
)
kmeans.init_method = "random"
kmeans.max_iterations = 1
kmeans.tol = 1
kmeans.num_trials = 1
kmeans.local_init_method = "kmeans++"
kmeans.half_life_time_size = 1
kmeans.epochs = 1
kmeans.center_factor = 1
assert kmeans.hyperparameters() == dict(
init_method=kmeans.init_method,
local_lloyd_max_iter=str(kmeans.max_iterations),
local_lloyd_tol=str(kmeans.tol),
local_lloyd_num_trials=str(kmeans.num_trials),
local_lloyd_init_method=kmeans.local_init_method,
half_life_time_size=str(kmeans.half_life_time_size),
epochs=str(kmeans.epochs),
extra_center_factor=str(kmeans.center_factor),
k=str(kmeans.k),
force_dense="True",
)
kmeans.fit(kmeans.record_set(training_set[0][:100]), wait=False, job_name=job_name)
print("Detached from training job. Will re-attach in 20 seconds")
time.sleep(20)
print("attaching now...")
with timeout_and_delete_endpoint_by_name(job_name, sagemaker_session):
estimator = KMeans.attach(training_job_name=job_name, sagemaker_session=sagemaker_session)
model = KMeansModel(
estimator.model_data, role="SageMakerRole", sagemaker_session=sagemaker_session
)
predictor = model.deploy(1, cpu_instance_type, endpoint_name=job_name)
result = predictor.predict(training_set[0][:10])
assert len(result) == 10
for record in result:
assert record.label["closest_cluster"] is not None
assert record.label["distance_to_cluster"] is not None
def test_kmeans_serverless_inference(sagemaker_session, cpu_instance_type, training_set):
job_name = unique_name_from_base("kmeans-serverless")
with timeout(minutes=TRAINING_DEFAULT_TIMEOUT_MINUTES):
kmeans = KMeans(
role="SageMakerRole",
instance_count=1,
instance_type=cpu_instance_type,
k=10,
sagemaker_session=sagemaker_session,
)
kmeans.init_method = "random"
kmeans.max_iterations = 1
kmeans.tol = 1
kmeans.num_trials = 1
kmeans.local_init_method = "kmeans++"
kmeans.half_life_time_size = 1
kmeans.epochs = 1
kmeans.center_factor = 1
kmeans.eval_metrics = ["ssd", "msd"]
assert kmeans.hyperparameters() == dict(
init_method=kmeans.init_method,
local_lloyd_max_iter=str(kmeans.max_iterations),
local_lloyd_tol=str(kmeans.tol),
local_lloyd_num_trials=str(kmeans.num_trials),
local_lloyd_init_method=kmeans.local_init_method,
half_life_time_size=str(kmeans.half_life_time_size),
epochs=str(kmeans.epochs),
extra_center_factor=str(kmeans.center_factor),
k=str(kmeans.k),
eval_metrics=json.dumps(kmeans.eval_metrics),
force_dense="True",
)
kmeans.fit(kmeans.record_set(training_set[0][:100]), job_name=job_name)
with timeout_and_delete_endpoint_by_name(job_name, sagemaker_session):
model = KMeansModel(
kmeans.model_data, role="SageMakerRole", sagemaker_session=sagemaker_session
)
predictor = model.deploy(
serverless_inference_config=ServerlessInferenceConfig(), endpoint_name=job_name
)
result = predictor.predict(training_set[0][:10])
assert len(result) == 10
for record in result:
assert record.label["closest_cluster"] is not None
assert record.label["distance_to_cluster"] is not None
predictor.delete_model()
with pytest.raises(Exception) as exception:
sagemaker_session.sagemaker_client.describe_model(ModelName=model.name)
assert "Could not find model" in str(exception.value)
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