def test_relative_path(self):
m = keras.Model()
v = m.add_weight(name='v', shape=[])
os.chdir(self.get_temp_dir())
prefix = 'ackpt'
self.evaluate(v.assign(42.))
m.save_weights(prefix)
self.assertTrue(file_io.file_exists('ackpt.index'))
self.evaluate(v.assign(1.))
m.load_weights(prefix)
self.assertEqual(42., self.evaluate(v))
prefix = 'subdir/ackpt'
self.evaluate(v.assign(43.))
m.save_weights(prefix)
self.assertTrue(file_io.file_exists('subdir/ackpt.index'))
self.evaluate(v.assign(2.))
m.load_weights(prefix)
self.assertEqual(43., self.evaluate(v))
prefix = 'ackpt/'
self.evaluate(v.assign(44.))
m.save_weights(prefix)
self.assertTrue(file_io.file_exists('ackpt/.index'))
self.evaluate(v.assign(3.))
m.load_weights(prefix)
self.assertEqual(44., self.evaluate(v))
def testRename(self):
file_path = os.path.join(self._base_dir, "temp_file")
file_io.FileIO(file_path, mode="w").write("testing")
rename_path = os.path.join(self._base_dir, "rename_file")
file_io.rename(file_path, rename_path)
self.assertTrue(file_io.file_exists(rename_path))
self.assertFalse(file_io.file_exists(file_path))
def _run_training_transform(self):
"""Runs training starting with transformed tf.example files."""
cloud = True
if cloud:
cmd = ['gcloud ml-engine jobs submit training test_mltoolbox_train_%s' % uuid.uuid4().hex,
'--runtime-version=1.0',
'--scale-tier=STANDARD_1',
'--stream-logs']
else:
cmd = ['gcloud ml-engine local train']
cmd = cmd + [
'--module-name trainer.task',
'--job-dir=' + self._train_output,
'--package-path=' + os.path.join(CODE_PATH, 'trainer'),
'--',
'--train=' + os.path.join(self._transform_output, 'features_train*'),
'--eval=' + os.path.join(self._transform_output, 'features_eval*'),
'--analysis=' + self._analysis_output,
'--model=linear_regression',
'--train-batch-size=10',
'--eval-batch-size=10',
'--max-steps=' + str(self._max_steps)]
self._logger.debug('Running subprocess: %s \n\n' % ' '.join(cmd))
subprocess.check_call(' '.join(cmd), shell=True)
# Check the saved model was made.
self.assertTrue(file_io.file_exists(
os.path.join(self._train_output, 'model', 'saved_model.pb')))
self.assertTrue(file_io.file_exists(
os.path.join(self._train_output, 'evaluation_model', 'saved_model.pb')))
def _save_and_write_assets(self, assets_collection_to_add=None):
"""Saves asset to the meta graph and writes asset files to disk.
Args:
assets_collection_to_add: The collection where the asset paths are setup.
"""
asset_source_filepath_list = _maybe_save_assets(assets_collection_to_add)
# Return if there are no assets to write.
if len(asset_source_filepath_list) is 0:
tf_logging.info("No assets to write.")
return
assets_destination_dir = os.path.join(
compat.as_bytes(self._export_dir),
compat.as_bytes(constants.ASSETS_DIRECTORY))
if not file_io.file_exists(assets_destination_dir):
file_io.recursive_create_dir(assets_destination_dir)
# Copy each asset from source path to destination path.
for asset_source_filepath in asset_source_filepath_list:
asset_source_filename = os.path.basename(asset_source_filepath)
asset_destination_filepath = os.path.join(
compat.as_bytes(assets_destination_dir),
compat.as_bytes(asset_source_filename))
# Only copy the asset file to the destination if it does not already
# exist. This is to ensure that an asset with the same name defined as
# part of multiple graphs is only copied the first time.
if not file_io.file_exists(asset_destination_filepath):
file_io.copy(asset_source_filepath, asset_destination_filepath)
tf_logging.info("Assets written to: %s", assets_destination_dir)
def _read_config_files(self, run_paths):
configs = {}
config_fpaths = {}
for run_name, logdir in run_paths.items():
config_fpath = os.path.join(logdir, PROJECTOR_FILENAME)
if not file_io.file_exists(config_fpath):
# Skip runs that have no config file.
continue
# Read the config file.
file_content = file_io.read_file_to_string(config_fpath).decode('utf-8')
config = ProjectorConfig()
text_format.Merge(file_content, config)
if not config.model_checkpoint_path:
# See if you can find a checkpoint file in the logdir.
ckpt_path = latest_checkpoint(logdir)
if not ckpt_path:
# Or in the parent of logdir.
ckpt_path = latest_checkpoint(os.path.join('../', logdir))
if not ckpt_path:
logging.warning('Cannot find model checkpoint in %s', logdir)
continue
config.model_checkpoint_path = ckpt_path
# Sanity check for the checkpoint file.
if not file_io.file_exists(config.model_checkpoint_path):
logging.warning('Checkpoint file %s not found',
config.model_checkpoint_path)
continue
configs[run_name] = config
config_fpaths[run_name] = config_fpath
return configs, config_fpaths
def testRename(self): file_path = os.path.join(self._base_dir, "temp_file") file_io.write_string_to_file(file_path, "testing") rename_path = os.path.join(self._base_dir, "rename_file") file_io.rename(file_path, rename_path) self.assertTrue(file_io.file_exists(rename_path)) self.assertFalse(file_io.file_exists(file_path))
def testCreateRecursiveDir(self):
dir_path = os.path.join(self._base_dir, "temp_dir/temp_dir1/temp_dir2")
file_io.recursive_create_dir(dir_path)
file_path = os.path.join(dir_path, "temp_file")
file_io.FileIO(file_path, mode="w").write("testing")
self.assertTrue(file_io.file_exists(file_path))
file_io.delete_recursively(os.path.join(self._base_dir, "temp_dir"))
self.assertFalse(file_io.file_exists(file_path))
def testRenameOverwriteFalse(self):
file_path = os.path.join(self._base_dir, "temp_file")
file_io.FileIO(file_path, mode="w").write("testing")
rename_path = os.path.join(self._base_dir, "rename_file")
file_io.FileIO(rename_path, mode="w").write("rename")
with self.assertRaises(errors.AlreadyExistsError):
file_io.rename(file_path, rename_path, overwrite=False)
self.assertTrue(file_io.file_exists(rename_path))
self.assertTrue(file_io.file_exists(file_path))
def testRenameOverwrite(self): file_path = os.path.join(self.get_temp_dir(), "temp_file") file_io.write_string_to_file(file_path, "testing") rename_path = os.path.join(self.get_temp_dir(), "rename_file") file_io.write_string_to_file(rename_path, "rename") file_io.rename(file_path, rename_path, overwrite=True) self.assertTrue(file_io.file_exists(rename_path)) self.assertFalse(file_io.file_exists(file_path)) file_io.delete_file(rename_path)
def testRenameOverwriteFalse(self):
file_path = os.path.join(self.get_temp_dir(), "temp_file")
file_io.write_string_to_file(file_path, "testing")
rename_path = os.path.join(self.get_temp_dir(), "rename_file")
file_io.write_string_to_file(rename_path, "rename")
with self.assertRaises(errors.AlreadyExistsError):
file_io.rename(file_path, rename_path, overwrite=False)
self.assertTrue(file_io.file_exists(rename_path))
self.assertTrue(file_io.file_exists(file_path))
file_io.delete_file(rename_path)
file_io.delete_file(file_path)
def save_model(model, saved_model_path):
"""Save a `tf.keras.Model` into Tensorflow SavedModel format.
`save_model` generates such files/folders under the `saved_model_path` folder:
1) an asset folder containing the json string of the model's
configuration(topology).
2) a checkpoint containing the model weights.
Note that subclassed models can not be saved via this function, unless you
provide an implementation for get_config() and from_config().
Also note that `tf.keras.optimizers.Optimizer` instances can not currently be
saved to checkpoints. Use optimizers from `tf.train`.
Args:
model: A `tf.keras.Model` to be saved.
saved_model_path: a string specifying the path to the SavedModel directory.
Raises:
NotImplementedError: If the passed in model is a subclassed model.
"""
if not model._is_graph_network:
raise NotImplementedError
# save model configuration as a json string under assets folder.
model_json = model.to_json()
assets_destination_dir = os.path.join(
compat.as_bytes(saved_model_path),
compat.as_bytes(constants.ASSETS_DIRECTORY))
if not file_io.file_exists(assets_destination_dir):
file_io.recursive_create_dir(assets_destination_dir)
model_json_filepath = os.path.join(
compat.as_bytes(assets_destination_dir),
compat.as_bytes(constants.SAVED_MODEL_FILENAME_JSON))
file_io.write_string_to_file(model_json_filepath, model_json)
# save model weights in checkpoint format.
checkpoint_destination_dir = os.path.join(
compat.as_bytes(saved_model_path),
compat.as_bytes(constants.VARIABLES_DIRECTORY))
if not file_io.file_exists(checkpoint_destination_dir):
file_io.recursive_create_dir(checkpoint_destination_dir)
checkpoint_prefix = os.path.join(
compat.as_text(checkpoint_destination_dir),
compat.as_text(constants.VARIABLES_FILENAME))
model.save_weights(checkpoint_prefix, save_format='tf', overwrite=True)
def testCopy(self):
file_path = os.path.join(self._base_dir, "temp_file")
file_io.FileIO(file_path, mode="w").write("testing")
copy_path = os.path.join(self._base_dir, "copy_file")
file_io.copy(file_path, copy_path)
self.assertTrue(file_io.file_exists(copy_path))
self.assertEqual(b"testing", file_io.read_file_to_string(file_path))
def _serve_metadata(self, query_params):
run = query_params.get('run')
if run is None:
self.handler.respond('query parameter "run" is required',
'text/plain', 400)
return
name = query_params.get('name')
if name is None:
self.handler.respond('query parameter "name" is required',
'text/plain', 400)
return
if run not in self.configs:
self.handler.respond('Unknown run: %s' % run, 'text/plain', 400)
return
config = self.configs[run]
fpath = self._get_metadata_file_for_tensor(name, config)
if not fpath:
self.handler.respond(
'Not metadata file found for tensor %s in the config file %s' %
(name, self.config_fpaths[run]), 'text/plain', 400)
return
if not file_io.file_exists(fpath) or file_io.is_directory(fpath):
self.handler.respond('%s is not a file' % fpath, 'text/plain', 400)
return
with file_io.FileIO(fpath, 'r') as f:
lines = []
for line in f:
lines.append(line)
if len(lines) >= LIMIT_NUM_POINTS:
break
self.handler.respond(''.join(lines), 'text/plain')
def _read_latest_config_files(self, run_path_pairs):
"""Reads and returns the projector config files in every run directory."""
configs = {}
config_fpaths = {}
for run_name, assets_dir in run_path_pairs:
config = projector_config_pb2.ProjectorConfig()
config_fpath = os.path.join(assets_dir, PROJECTOR_FILENAME)
if file_io.file_exists(config_fpath):
file_content = file_io.read_file_to_string(config_fpath)
text_format.Merge(file_content, config)
has_tensor_files = False
for embedding in config.embeddings:
if embedding.tensor_path:
has_tensor_files = True
break
if not config.model_checkpoint_path:
# See if you can find a checkpoint file in the logdir.
logdir = _assets_dir_to_logdir(assets_dir)
ckpt_path = _find_latest_checkpoint(logdir)
if not ckpt_path and not has_tensor_files:
continue
if ckpt_path:
config.model_checkpoint_path = ckpt_path
# Sanity check for the checkpoint file.
if (config.model_checkpoint_path and
not checkpoint_exists(config.model_checkpoint_path)):
logging.warning('Checkpoint file "%s" not found',
config.model_checkpoint_path)
continue
configs[run_name] = config
config_fpaths[run_name] = config_fpath
return configs, config_fpaths
def _serve_bookmarks(self, query_params):
run = query_params.get('run')
if not run:
self.handler.respond('query parameter "run" is required', 'text/plain',
400)
return
name = query_params.get('name')
if name is None:
self.handler.respond('query parameter "name" is required', 'text/plain',
400)
return
if run not in self.configs:
self.handler.respond('Unknown run: %s' % run, 'text/plain', 400)
return
config = self.configs[run]
fpath = self._get_bookmarks_file_for_tensor(name, config)
if not fpath:
self.handler.respond(
'No bookmarks file found for tensor %s in the config file %s' %
(name, self.config_fpaths[run]), 'text/plain', 400)
return
if not file_io.file_exists(fpath) or file_io.is_directory(fpath):
self.handler.respond('%s is not a file' % fpath, 'text/plain', 400)
return
bookmarks_json = None
with file_io.FileIO(fpath, 'r') as f:
bookmarks_json = f.read()
self.handler.respond(bookmarks_json, 'application/json')
def write_graph(graph_def, logdir, name, as_text=True):
"""Writes a graph proto to a file.
The graph is written as a binary proto unless `as_text` is `True`.
```python
v = tf.Variable(0, name='my_variable')
sess = tf.Session()
tf.train.write_graph(sess.graph_def, '/tmp/my-model', 'train.pbtxt')
```
Args:
graph_def: A `GraphDef` protocol buffer.
logdir: Directory where to write the graph. This can refer to remote
filesystems, such as Google Cloud Storage (GCS).
name: Filename for the graph.
as_text: If `True`, writes the graph as an ASCII proto.
"""
# gcs does not have the concept of directory at the moment.
if not file_io.file_exists(logdir) and not logdir.startswith("gs:"):
file_io.recursive_create_dir(logdir)
path = os.path.join(logdir, name)
if as_text:
file_io.write_string_to_file(path, str(graph_def))
else:
file_io.write_string_to_file(path, graph_def.SerializeToString())
def cloud_batch_predict(training_dir, prediction_input_file, output_dir, mode, batch_size,
shard_files, output_format):
"""See batch_predict"""
# from . import predict as predict_module
from .prediction import predict as predict_module
if mode == 'evaluation':
model_dir = os.path.join(training_dir, 'evaluation_model')
elif mode == 'prediction':
model_dir = os.path.join(training_dir, 'model')
else:
raise ValueError('mode must be evaluation or prediction')
if not file_io.file_exists(model_dir):
raise ValueError('Model folder %s does not exist' % model_dir)
_assert_gcs_files([training_dir, prediction_input_file, output_dir])
cmd = ['predict.py',
'--cloud',
'--project-id=%s' % _default_project(),
'--predict-data=%s' % prediction_input_file,
'--trained-model-dir=%s' % model_dir,
'--output-dir=%s' % output_dir,
'--output-format=%s' % output_format,
'--batch-size=%s' % str(batch_size),
'--shard-files' if shard_files else '--no-shard-files',
'--extra-package=%s' % _TF_GS_URL,
'--extra-package=%s' % _PROTOBUF_GS_URL,
'--extra-package=%s' % _package_to_staging(output_dir)
]
return predict_module.main(cmd)
def _serve_bookmarks(self, request):
run = request.args.get('run')
if not run:
return Respond(request, 'query parameter "run" is required', 'text/plain',
400)
name = request.args.get('name')
if name is None:
return Respond(request, 'query parameter "name" is required',
'text/plain', 400)
if run not in self.configs:
return Respond(request, 'Unknown run: "%s"' % run, 'text/plain', 400)
config = self.configs[run]
fpath = self._get_bookmarks_file_for_tensor(name, config)
if not fpath:
return Respond(
request,
'No bookmarks file found for tensor "%s" in the config file "%s"' %
(name, self.config_fpaths[run]), 'text/plain', 400)
fpath = _rel_to_abs_asset_path(fpath, self.config_fpaths[run])
if not file_io.file_exists(fpath) or file_io.is_directory(fpath):
return Respond(request, '"%s" not found, or is not a file' % fpath,
'text/plain', 400)
bookmarks_json = None
with file_io.FileIO(fpath, 'rb') as f:
bookmarks_json = f.read()
return Respond(request, bookmarks_json, 'application/json')
def _GetBaseApiMap(self):
"""Get a map from graph op name to its base ApiDef.
Returns:
Dictionary mapping graph op name to corresponding ApiDef.
"""
# Convert base ApiDef in Multiline format to Proto format.
converted_base_api_dir = os.path.join(
test.get_temp_dir(), 'temp_base_api_defs')
subprocess.check_call(
[os.path.join(resource_loader.get_root_dir_with_all_resources(),
_CONVERT_FROM_MULTILINE_SCRIPT),
_BASE_API_DIR, converted_base_api_dir])
name_to_base_api_def = {}
base_api_files = file_io.get_matching_files(
os.path.join(converted_base_api_dir, 'api_def_*.pbtxt'))
for base_api_file in base_api_files:
if file_io.file_exists(base_api_file):
api_defs = api_def_pb2.ApiDefs()
text_format.Merge(
file_io.read_file_to_string(base_api_file), api_defs)
for api_def in api_defs.op:
name_to_base_api_def[api_def.graph_op_name] = api_def
return name_to_base_api_def
def save(self, as_text=False):
"""Writes a `SavedModel` protocol buffer to disk.
The function writes the SavedModel protocol buffer to the export directory
in serialized format.
Args:
as_text: Writes the SavedModel protocol buffer in text format to disk.
Returns:
The path to which the SavedModel protocol buffer was written.
"""
if not file_io.file_exists(self._export_dir):
file_io.recursive_create_dir(self._export_dir)
if as_text:
path = os.path.join(
compat.as_bytes(self._export_dir),
compat.as_bytes(constants.SAVED_MODEL_FILENAME_PBTXT))
file_io.write_string_to_file(path, str(self._saved_model))
else:
path = os.path.join(
compat.as_bytes(self._export_dir),
compat.as_bytes(constants.SAVED_MODEL_FILENAME_PB))
file_io.write_string_to_file(path, self._saved_model.SerializeToString())
tf_logging.info("SavedModel written to: %s", path)
return path
def read_meta_graph_file(filename):
"""Reads a file containing `MetaGraphDef` and returns the protocol buffer.
Args:
filename: `meta_graph_def` filename including the path.
Returns:
A `MetaGraphDef` protocol buffer.
Raises:
IOError: If the file doesn't exist, or cannot be successfully parsed.
"""
meta_graph_def = meta_graph_pb2.MetaGraphDef()
if not file_io.file_exists(filename):
raise IOError("File %s does not exist." % filename)
# First try to read it as a binary file.
file_content = file_io.FileIO(filename, "rb").read()
try:
meta_graph_def.ParseFromString(file_content)
return meta_graph_def
except Exception: # pylint: disable=broad-except
pass
# Next try to read it as a text file.
try:
text_format.Merge(file_content.decode("utf-8"), meta_graph_def)
except text_format.ParseError as e:
raise IOError("Cannot parse file %s: %s." % (filename, str(e)))
return meta_graph_def
def get_experiment(output_dir):
# Merge schema, input features, and transforms.
train_config = util.merge_metadata(args.preprocess_output_dir,
args.transforms_file)
# Get the model to train.
estimator = util.get_estimator(output_dir, train_config, args)
# Save a copy of the scehma and input to the model folder.
schema_file = os.path.join(args.preprocess_output_dir, util.SCHEMA_FILE)
# Make list of files to save with the trained model.
additional_assets = {'features.json': args.transforms_file,
util.SCHEMA_FILE: schema_file}
if util.is_classification_model(args.model_type):
target_name = train_config['target_column']
vocab_file_name = util.CATEGORICAL_ANALYSIS % target_name
vocab_file_path = os.path.join(
args.preprocess_output_dir, vocab_file_name)
assert file_io.file_exists(vocab_file_path)
additional_assets[vocab_file_name] = vocab_file_path
export_strategy_target = util.make_export_strategy(
train_config=train_config,
args=args,
keep_target=True,
assets_extra=additional_assets)
export_strategy_notarget = util.make_export_strategy(
train_config=train_config,
args=args,
keep_target=False,
assets_extra=additional_assets)
input_reader_for_train = get_reader_input_fn(
train_config=train_config,
preprocess_output_dir=args.preprocess_output_dir,
model_type=args.model_type,
data_paths=args.train_data_paths,
batch_size=args.train_batch_size,
shuffle=True,
num_epochs=args.num_epochs)
input_reader_for_eval = get_reader_input_fn(
train_config=train_config,
preprocess_output_dir=args.preprocess_output_dir,
model_type=args.model_type,
data_paths=args.eval_data_paths,
batch_size=args.eval_batch_size,
shuffle=False,
num_epochs=1)
return tf.contrib.learn.Experiment(
estimator=estimator,
train_input_fn=input_reader_for_train,
eval_input_fn=input_reader_for_eval,
train_steps=args.max_steps,
export_strategies=[export_strategy_target, export_strategy_notarget],
min_eval_frequency=args.min_eval_frequency,
eval_steps=None,
)
def _save_and_write_assets(self, assets_collection_to_add=None):
"""Saves asset to the meta graph and writes asset files to disk.
Args:
assets_collection_to_add: The collection where the asset paths are setup.
"""
asset_filename_map = _maybe_save_assets(assets_collection_to_add)
# Return if there are no assets to write.
if not asset_filename_map:
tf_logging.info("No assets to write.")
return
assets_destination_dir = saved_model_utils.get_or_create_assets_dir(
self._export_dir)
# Copy each asset from source path to destination path.
for asset_basename, asset_source_filepath in asset_filename_map.items():
asset_destination_filepath = os.path.join(
compat.as_bytes(assets_destination_dir),
compat.as_bytes(asset_basename))
# Only copy the asset file to the destination if it does not already
# exist. This is to ensure that an asset with the same name defined as
# part of multiple graphs is only copied the first time.
if not file_io.file_exists(asset_destination_filepath):
file_io.copy(asset_source_filepath, asset_destination_filepath)
tf_logging.info("Assets written to: %s",
compat.as_text(assets_destination_dir))
def testAssets(self):
export_dir = self._get_export_dir("test_assets")
builder = saved_model_builder.SavedModelBuilder(export_dir)
with self.test_session(graph=ops.Graph()) as sess:
self._init_and_validate_variable(sess, "v", 42)
# Build an asset collection.
ignored_filepath = os.path.join(
compat.as_bytes(test.get_temp_dir()), compat.as_bytes("ignored.txt"))
file_io.write_string_to_file(ignored_filepath, "will be ignored")
asset_collection = self._build_asset_collection("hello42.txt",
"foo bar baz",
"asset_file_tensor")
builder.add_meta_graph_and_variables(
sess, ["foo"], assets_collection=asset_collection)
# Save the SavedModel to disk.
builder.save()
with self.test_session(graph=ops.Graph()) as sess:
foo_graph = loader.load(sess, ["foo"], export_dir)
self._validate_asset_collection(export_dir, foo_graph.collection_def,
"hello42.txt", "foo bar baz",
"asset_file_tensor:0")
ignored_asset_path = os.path.join(
compat.as_bytes(export_dir),
compat.as_bytes(constants.ASSETS_DIRECTORY),
compat.as_bytes("ignored.txt"))
self.assertFalse(file_io.file_exists(ignored_asset_path))
def _serve_sprite_image(self, request):
run = request.args.get('run')
if not run:
return Respond(request, 'query parameter "run" is required', 'text/plain',
400)
name = request.args.get('name')
if name is None:
return Respond(request, 'query parameter "name" is required',
'text/plain', 400)
if run not in self.configs:
return Respond(request, 'Unknown run: "%s"' % run, 'text/plain', 400)
config = self.configs[run]
embedding_info = self._get_embedding(name, config)
if not embedding_info or not embedding_info.sprite.image_path:
return Respond(
request,
'No sprite image file found for tensor "%s" in the config file "%s"' %
(name, self.config_fpaths[run]), 'text/plain', 400)
fpath = os.path.expanduser(embedding_info.sprite.image_path)
fpath = _rel_to_abs_asset_path(fpath, self.config_fpaths[run])
if not file_io.file_exists(fpath) or file_io.is_directory(fpath):
return Respond(request, '"%s" does not exist or is directory' % fpath,
'text/plain', 400)
f = file_io.FileIO(fpath, 'rb')
encoded_image_string = f.read()
f.close()
image_type = imghdr.what(None, encoded_image_string)
mime_type = _IMGHDR_TO_MIMETYPE.get(image_type, _DEFAULT_IMAGE_MIMETYPE)
return Respond(request, encoded_image_string, mime_type)
def _save_and_write_assets(self, assets_collection_to_add=None):
"""Saves asset to the meta graph and writes asset files to disk.
Args:
assets_collection_to_add: The collection where the asset paths are setup.
"""
asset_source_filepath_list = self._save_assets(assets_collection_to_add)
# Return if there are no assets to write.
if len(asset_source_filepath_list) is 0:
tf_logging.info("No assets to write.")
return
assets_destination_dir = os.path.join(
compat.as_bytes(self._export_dir),
compat.as_bytes(constants.ASSETS_DIRECTORY))
if not file_io.file_exists(assets_destination_dir):
file_io.recursive_create_dir(assets_destination_dir)
# Copy each asset from source path to destination path.
for asset_source_filepath in asset_source_filepath_list:
asset_source_filename = os.path.basename(asset_source_filepath)
asset_destination_filepath = os.path.join(
compat.as_bytes(assets_destination_dir),
compat.as_bytes(asset_source_filename))
file_io.copy(
asset_source_filepath, asset_destination_filepath, overwrite=True)
tf_logging.info("Assets written to: %s", assets_destination_dir)
def local_batch_predict(training_dir, prediction_input_file, output_dir, mode, batch_size,
shard_files, output_format):
"""See batch_predict"""
# from . import predict as predict_module
from .prediction import predict as predict_module
if mode == 'evaluation':
model_dir = os.path.join(training_dir, 'evaluation_model')
elif mode == 'prediction':
model_dir = os.path.join(training_dir, 'model')
else:
raise ValueError('mode must be evaluation or prediction')
if not file_io.file_exists(model_dir):
raise ValueError('Model folder %s does not exist' % model_dir)
cmd = ['predict.py',
'--predict-data=%s' % prediction_input_file,
'--trained-model-dir=%s' % model_dir,
'--output-dir=%s' % output_dir,
'--output-format=%s' % output_format,
'--batch-size=%s' % str(batch_size),
'--shard-files' if shard_files else '--no-shard-files',
'--has-target' if mode == 'evaluation' else '--no-has-target'
]
# return predict_module.predict.main(cmd)
return predict_module.main(cmd)
def _serve_sprite_image(self, request, query_params):
run = query_params.get('run')
if not run:
request.respond('query parameter "run" is required', 'text/plain', 400)
return
name = query_params.get('name')
if name is None:
request.respond('query parameter "name" is required', 'text/plain', 400)
return
if run not in self.configs:
request.respond('Unknown run: %s' % run, 'text/plain', 400)
return
config = self.configs[run]
embedding_info = self._get_embedding(name, config)
if not embedding_info or not embedding_info.sprite.image_path:
request.respond(
'No sprite image file found for tensor %s in the config file %s' %
(name, self.config_fpaths[run]), 'text/plain', 400)
return
fpath = embedding_info.sprite.image_path
if not file_io.file_exists(fpath) or file_io.is_directory(fpath):
request.respond(
'%s does not exist or is directory' % fpath, 'text/plain', 400)
return
f = file_io.FileIO(fpath, 'r')
encoded_image_string = f.read()
f.close()
image_type = imghdr.what(None, encoded_image_string)
mime_type = _IMGHDR_TO_MIMETYPE.get(image_type, _DEFAULT_IMAGE_MIMETYPE)
request.respond(encoded_image_string, mime_type)
def testFileWrite(self): file_path = os.path.join(self.get_temp_dir(), "temp_file") file_io.write_string_to_file(file_path, "testing") self.assertTrue(file_io.file_exists(file_path)) file_contents = file_io.read_file_to_string(file_path) self.assertEqual(b"testing", file_contents) file_io.delete_file(file_path)
def add_meta_graph_and_variables(self,
sess,
tags,
signature_def_map=None,
assets_collection=None,
legacy_init_op=None):
"""Adds the current meta graph to the SavedModel and saves variables.
Creates a Saver to save the variables from the provided session. Exports the
corresponding meta graph def. This function assumes that the variables to be
saved have been initialized. For a given `SavedModelBuilder`, this API must
be called exactly once and for the first meta graph to save. For subsequent
meta graph defs to be added, the `add_meta_graph()` API must be used.
Args:
sess: The TensorFlow session from which to save the meta graph and
variables.
tags: The set of tags with which to save the meta graph.
signature_def_map: The map of signature def map to add to the meta graph
def.
assets_collection: Assets collection to be saved with SavedModel.
legacy_init_op: Op or group of ops to execute after the restore op upon a
load.
"""
if self._has_saved_variables:
raise AssertionError("Variables and assets have already been saved. "
"Please invoke `add_meta_graph()` instead.")
# Save asset files and write them to disk, if any.
self._save_and_write_assets(assets_collection)
# Create the variables sub-directory, if it does not exist.
variables_dir = os.path.join(
compat.as_text(self._export_dir),
compat.as_text(constants.VARIABLES_DIRECTORY))
if not file_io.file_exists(variables_dir):
file_io.recursive_create_dir(variables_dir)
variables_path = os.path.join(
compat.as_text(variables_dir),
compat.as_text(constants.VARIABLES_FILENAME))
# Add legacy init op to the SavedModel.
self._maybe_add_legacy_init_op(legacy_init_op)
# Save the variables and export meta graph def.
saver = tf_saver.Saver(
variables.all_variables(),
sharded=True,
write_version=saver_pb2.SaverDef.V2)
saver.save(sess, variables_path, write_meta_graph=False)
meta_graph_def = saver.export_meta_graph()
# Tag the meta graph def and add it to the SavedModel.
self._tag_and_add_meta_graph(meta_graph_def, tags, signature_def_map)
# Mark this instance of SavedModel as having saved variables, such that
# subsequent attempts to save variables will fail.
self._has_saved_variables = True
def testGetMatchingFiles(self):
dir_path = file_io.join(self._base_dir, "temp_dir")
file_io.create_dir(dir_path)
files = ["file1.txt", "file2.txt", "file3.txt", "file*.txt"]
for name in files:
file_path = file_io.join(dir_path, name)
file_io.FileIO(file_path, mode="w").write("testing")
expected_match = [file_io.join(dir_path, name) for name in files]
self.assertItemsEqual(
file_io.get_matching_files(file_io.join(dir_path, "file*.txt")),
expected_match)
self.assertItemsEqual(file_io.get_matching_files(tuple()), [])
files_subset = [
file_io.join(dir_path, files[0]),
file_io.join(dir_path, files[2])
]
self.assertItemsEqual(
file_io.get_matching_files(files_subset), files_subset)
file_io.delete_recursively(dir_path)
self.assertFalse(file_io.file_exists(file_io.join(dir_path, "file3.txt")))
def load(export_dir):
"""Load a SavedModel from `export_dir`."""
object_graph_filename = os.path.join(
compat.as_bytes(export_dir),
compat.as_bytes(constants.EXTRA_ASSETS_DIRECTORY),
compat.as_bytes("object_graph.pb"))
if file_io.file_exists(object_graph_filename):
# If there is an object graph associated with the SavedModel, we'll create a
# root object from that.
object_graph_string = file_io.FileIO(object_graph_filename, "rb").read()
object_graph_proto = (
saved_object_graph_pb2.SavedObjectGraph())
object_graph_proto.ParseFromString(object_graph_string)
root = _recreate_object_graph(object_graph_proto)
else:
raise NotImplementedError(
"Currently only SavedModels exported with `tf.saved_model.save` may be "
"imported. Other SavedModels may eventually be supported via load().")
# TODO(allenl): load functions from the SavedModel into the eager context
return root
def _serve_metadata(self, request):
run = request.args.get('run')
if run is None:
return Respond(request, 'query parameter "run" is required', 'text/plain',
400)
name = request.args.get('name')
if name is None:
return Respond(request, 'query parameter "name" is required',
'text/plain', 400)
num_rows = _parse_positive_int_param(request, 'num_rows')
if num_rows == -1:
return Respond(request, 'query parameter num_rows must be integer > 0',
'text/plain', 400)
if run not in self.configs:
return Respond(request, 'Unknown run: %s' % run, 'text/plain', 400)
config = self.configs[run]
fpath = self._get_metadata_file_for_tensor(name, config)
if not fpath:
return Respond(
request,
'No metadata file found for tensor %s in the config file %s' %
(name, self.config_fpaths[run]), 'text/plain', 400)
if not file_io.file_exists(fpath) or file_io.is_directory(fpath):
return Respond(request, '%s is not a file' % fpath, 'text/plain', 400)
num_header_rows = 0
with file_io.FileIO(fpath, 'r') as f:
lines = []
# Stream reading the file with early break in case the file doesn't fit in
# memory.
for line in f:
lines.append(line)
if len(lines) == 1 and '\t' in lines[0]:
num_header_rows = 1
if num_rows and len(lines) >= num_rows + num_header_rows:
break
return Respond(request, ''.join(lines), 'text/plain')
def calibration_structure_builder(self, columns_to_tensors, hparams):
"""Returns the calibration structure of the model. See base class."""
# Check to make sure input features are single dimensional.
for (column, tensor) in six.iteritems(columns_to_tensors):
if len(tensor.shape) > 1 and tensor.shape.dims[1].value > 1:
raise ValueError(
'Separately calibrated RTLs do not support multi dimensional '
'features: %s with shape %s' % (column, tensor.shape))
sorted_columns = sorted(columns_to_tensors.keys())
n_inputs = len(columns_to_tensors)
num_lattices = hparams.get_param('num_lattices')
lattice_rank = hparams.get_param('lattice_rank')
rtl_seed = hparams.get_param('rtl_seed')
# Create and save structure if it does not exists.
if not file_io.file_exists(self._structure_file):
structure = self._create_structure(n_inputs, num_lattices,
lattice_rank, rtl_seed)
self._save_structure(structure)
structure = self._load_structure()
# Check structure is what we expect.
if len(structure) != num_lattices:
raise ValueError(
'Expect %d number of lattices, but found %d number of lattices in '
'structure: %s' %
(num_lattices, len(structure), str(structure)))
calibration_structure = []
for indices in structure:
if len(indices) != lattice_rank:
raise ValueError(
'Expect %d lattice rank, but found %d in structure: %s' %
(lattice_rank, len(indices), str(structure)))
sub_columns_to_tensors = {
sorted_columns[i]: columns_to_tensors[sorted_columns[i]]
for i in indices
}
calibration_structure.append(sub_columns_to_tensors)
return calibration_structure
def process(self, element):
try:
row, label_ids = element.element
except AttributeError:
row, label_ids = element
id = int(row[ID_COL])
images_count = int(row[IMAGES_COUNT_COL])
if images_count < 1:
embedding = None
else:
emb_filepath = "%s/%s" % (self._emb_path, id_to_path(id))
if not file_io.file_exists(emb_filepath):
embedding = None
logging.warn('file is not exists: %s', emb_filepath)
empty_imgs_count.inc()
else:
embedding = self._fetch_embedding(emb_filepath)
yield row, label_ids, embedding
def get_model(model_path):
if file_io.file_exists(model_path):
with file_io.FileIO(model_path, mode='r') as input_f:
with file_io.FileIO("model.h5", mode='w+') as output_f:
output_f.write(input_f.read())
return load_model("model.h5")
else:
print("Building new model")
model = Sequential([
Dense(9, activation='relu', input_shape=(9, )),
Dense(64, activation='relu'),
Dense(64, activation='relu'),
Dense(9, activation='softmax')
])
model.compile(optimizer='adam',
loss='sparse_categorical_crossentropy',
metrics=['accuracy'])
return model
def __init__(self, html_template_path, export_report_path):
"""Reads the HTML template content.
Args:
html_template_path: A string, path to the template HTML file.
export_report_path: A string, path to the generated HTML report. This path
should point to a '.html' file with date and time in its name.
e.g. 2019-01-01-10:05.toco_report.html.
Raises:
IOError: File doesn't exist.
"""
# Load the template HTML.
if not _file_io.file_exists(html_template_path):
raise IOError(
"File '{0}' does not exist.".format(html_template_path))
with _file_io.FileIO(html_template_path, "r") as f:
self.html_template = f.read()
_file_io.recursive_create_dir(os.path.dirname(export_report_path))
self.export_report_path = export_report_path
def __init__(self, export_dir):
self._saved_model = saved_model_pb2.SavedModel()
self._saved_model.saved_model_schema_version = (
constants.SAVED_MODEL_SCHEMA_VERSION)
self._export_dir = export_dir
if file_io.file_exists(export_dir):
if file_io.list_directory(export_dir):
raise AssertionError(
"Export directory already exists, and isn't empty. Please choose "
"a different export directory, or delete all the contents of the "
"specified directory: %s" % export_dir)
else:
file_io.recursive_create_dir(self._export_dir)
# Boolean to track whether variables and assets corresponding to the
# SavedModel have been saved. Specifically, the first meta graph to be added
# MUST use the add_meta_graph_and_variables() API. Subsequent add operations
# on the SavedModel MUST use the add_meta_graph() API which does not save
# weights.
self._has_saved_variables = False
def classify_run1(begin_flag):
if(begin_flag):
init()
#logging.set_verbosity(tf.logging.ERROR)
if FLAGS.input_model_tgz:
if FLAGS.train_dir:
raise ValueError("You cannot supply --train_dir if supplying "
"--input_model_tgz")
# Untar.
if not os.path.exists(FLAGS.untar_model_dir):
os.makedirs(FLAGS.untar_model_dir)
tarfile.open(FLAGS.input_model_tgz).extractall(FLAGS.untar_model_dir)
FLAGS.train_dir = FLAGS.untar_model_dir
flags_dict_file = os.path.join(FLAGS.train_dir, "model_flags.json")
if not file_io.file_exists(flags_dict_file):
raise IOError("Cannot find %s. Did you run eval.py?" % flags_dict_file)
flags_dict = json.loads(file_io.FileIO(flags_dict_file, "r").read())
# convert feature_names and feature_sizes to lists of values
feature_names, feature_sizes = utils.GetListOfFeatureNamesAndSizes(
flags_dict["feature_names"], flags_dict["feature_sizes"])
if flags_dict["frame_features"]:
reader = readers.YT8MFrameFeatureReader(feature_names=feature_names,
feature_sizes=feature_sizes)
else:
reader = readers.YT8MAggregatedFeatureReader(feature_names=feature_names,
feature_sizes=feature_sizes)
if not FLAGS.output_file:
raise ValueError("'output_file' was not specified. "
"Unable to continue with inference.")
if not FLAGS.input_data_pattern:
raise ValueError("'input_data_pattern' was not specified. "
"Unable to continue with inference.")
return inference(reader, FLAGS.train_dir, FLAGS.input_data_pattern,
FLAGS.output_file, FLAGS.batch_size, FLAGS.top_k)
def write_graph(graph_or_graph_def, logdir, name, as_text=True):
"""Writes a graph proto to a file.
The graph is written as a binary proto unless `as_text` is `True`.
```python
v = tf.Variable(0, name='my_variable')
sess = tf.Session()
tf.train.write_graph(sess.graph_def, '/tmp/my-model', 'train.pbtxt')
```
or
```python
v = tf.Variable(0, name='my_variable')
sess = tf.Session()
tf.train.write_graph(sess.graph, '/tmp/my-model', 'train.pbtxt')
```
Args:
graph_or_graph_def: A `Graph` or a `GraphDef` protocol buffer.
logdir: Directory where to write the graph. This can refer to remote
filesystems, such as Google Cloud Storage (GCS).
name: Filename for the graph.
as_text: If `True`, writes the graph as an ASCII proto.
"""
if isinstance(graph_or_graph_def, ops.Graph):
graph_def = graph_or_graph_def.as_graph_def()
else:
graph_def = graph_or_graph_def
# gcs does not have the concept of directory at the moment.
if not file_io.file_exists(logdir) and not logdir.startswith('gs:'):
file_io.recursive_create_dir(logdir)
path = os.path.join(logdir, name)
if as_text:
file_io.atomic_write_string_to_file(path, str(graph_def))
else:
file_io.atomic_write_string_to_file(path,
graph_def.SerializeToString())
def _read_latest_config_files(self, run_path_pairs):
"""Reads and returns the projector config files in every run directory."""
configs = {}
config_fpaths = {}
for run_name, logdir in run_path_pairs:
config = ProjectorConfig()
config_fpath = os.path.join(logdir, PROJECTOR_FILENAME)
if file_io.file_exists(config_fpath):
file_content = file_io.read_file_to_string(
config_fpath).decode('utf-8')
text_format.Merge(file_content, config)
has_tensor_files = False
for embedding in config.embeddings:
if embedding.tensor_path:
has_tensor_files = True
break
if not config.model_checkpoint_path:
# See if you can find a checkpoint file in the logdir.
ckpt_path = latest_checkpoint(logdir)
if not ckpt_path:
# Or in the parent of logdir.
ckpt_path = latest_checkpoint(
os.path.join(logdir, os.pardir))
if not ckpt_path and not has_tensor_files:
continue
if ckpt_path:
config.model_checkpoint_path = ckpt_path
# Sanity check for the checkpoint file.
if (config.model_checkpoint_path
and not checkpoint_exists(config.model_checkpoint_path)):
logging.warning('Checkpoint file %s not found',
config.model_checkpoint_path)
continue
configs[run_name] = config
config_fpaths[run_name] = config_fpath
return configs, config_fpaths
def restore(self):
"""Restore the training state from the backed up checkpoint file.
Returns:
True if the training state is successfully restored. False if the training
state doesn't need to be restored, or error occurred so it can't.
"""
self._assert_in_multi_worker_mode()
if not dc_context.get_current_worker_context().experimental_should_init:
# For multi-worker training, it should not restore a model in certain
# worker setting (e.g. non-chief worker in ParameterServerStrategy).
return False
if file_io.file_exists(self._backup_dir):
try:
# Load the weights plus CKPT_SAVED_EPOCH variable.
self._model.load_weights(self._backup_filepath)
return True
except (IOError, ValueError) as e:
raise ValueError('Error loading file from {}. Reason: {}'.format(
self._backup_filepath, e))
return False
def _serve_metadata(self, request, query_params):
run = query_params.get('run')
if run is None:
request.respond('query parameter "run" is required', 'text/plain',
400)
return
name = query_params.get('name')
if name is None:
request.respond('query parameter "name" is required', 'text/plain',
400)
return
if run not in self.configs:
request.respond('Unknown run: %s' % run, 'text/plain', 400)
return
config = self.configs[run]
fpath = self._get_metadata_file_for_tensor(name, config)
if not fpath:
request.respond(
'No metadata file found for tensor %s in the config file %s' %
(name, self.config_fpaths[run]), 'text/plain', 400)
return
if not file_io.file_exists(fpath) or file_io.is_directory(fpath):
request.respond('%s is not a file' % fpath, 'text/plain', 400)
return
num_header_rows = 0
with file_io.FileIO(fpath, 'r') as f:
lines = []
# Stream reading the file with early break in case the file doesn't fit in
# memory.
for line in f:
lines.append(line)
if len(lines) == 1 and '\t' in lines[0]:
num_header_rows = 1
if len(lines) >= LIMIT_NUM_POINTS + num_header_rows:
break
request.respond(''.join(lines), 'text/plain')
def call_model_predictions_from_df(project_name,
tmp_tfrecords_gcs_path,
tmp_tfrecords_with_predictions_gcs_path,
model_name,
version_name=None):
"""Calls a prediction job.
Args:
project_name: gcp project name.
tmp_tfrecords_gcs_path: gcs path to store tf_records, which will be inputs
to batch prediction job.
tmp_tfrecords_with_predictions_gcs_path: gcs path to store tf_records, which
will be outputs to batch prediction job.
model_name: Model name used to run predictions. The model must take as
inputs TF-Records with fields $TEXT_FEATURE_NAME and $SENTENCE_KEY, and
should return a dictionary including the field $LABEL_NAME.
version_name: Model version to run predictions. If None, it will use default
version of the model.
Returns:
job_id: the job_id of the prediction job.
Raises:
ValueError: if tmp_tfrecords_gcs_path does not exist.
"""
# Create tf-records if necessary.
if not file_io.file_exists(tmp_tfrecords_gcs_path):
raise ValueError('tf_records do not exist.')
# Call batch prediction job.
job_id = _call_batch_job(
project_name,
input_paths=tmp_tfrecords_gcs_path,
output_path=tmp_tfrecords_with_predictions_gcs_path,
model_name=model_name,
version_name=version_name)
return job_id
def _latest_checkpoints_changed(configs, run_path_pairs):
"""Returns true if the latest checkpoint has changed in any of the runs."""
for run_name, logdir in run_path_pairs:
if run_name not in configs:
config = ProjectorConfig()
config_fpath = os.path.join(logdir, PROJECTOR_FILENAME)
if file_io.file_exists(config_fpath):
file_content = file_io.read_file_to_string(config_fpath)
text_format.Merge(file_content, config)
else:
config = configs[run_name]
# See if you can find a checkpoint file in the logdir.
ckpt_path = latest_checkpoint(logdir)
if not ckpt_path:
# See if you can find a checkpoint in the parent of logdir.
ckpt_path = latest_checkpoint(os.path.join(logdir, os.pardir))
if not ckpt_path:
continue
if config.model_checkpoint_path != ckpt_path:
return True
return False
def load_library(library_location):
"""Loads a TensorFlow plugin.
"library_location" can be a path to a specific shared object, or a folder.
If it is a folder, all sahred objects that are named "libtfkernel*" will be
loaded. When the library is loaded, kernels registered in the library via the
`REGISTER_*` macros are made available in the TensorFlow process.
Args:
library_location: Path to the plugin or the folder of plugins.
Relative or absolute filesystem path to a dynamic library file or folder.
Returns:
None
Raises:
OSError: When the file to be loaded is not found.
RuntimeError: when unable to load the library.
"""
if file_io.file_exists(library_location):
if file_io.is_directory(library_location):
directory_contents = file_io.list_directory(library_location)
kernel_libraries = [
os.path.join(library_location, f) for f in directory_contents
if _is_shared_object(f)
]
else:
kernel_libraries = [library_location]
for lib in kernel_libraries:
py_tf.TF_LoadLibrary(lib)
else:
raise OSError(
errno.ENOENT,
'The file or folder to load kernel libraries from does not exist.',
library_location)
def _serve_sprite_image(self, request, query_params):
run = query_params.get('run')
if not run:
request.respond('query parameter "run" is required', 'text/plain',
400)
return
name = query_params.get('name')
if name is None:
request.respond('query parameter "name" is required', 'text/plain',
400)
return
if run not in self.configs:
request.respond('Unknown run: %s' % run, 'text/plain', 400)
return
config = self.configs[run]
embedding_info = self._get_embedding(name, config)
if not embedding_info or not embedding_info.sprite.image_path:
request.respond(
'No sprite image file found for tensor %s in the config file %s'
% (name, self.config_fpaths[run]), 'text/plain', 400)
return
fpath = embedding_info.sprite.image_path
if not file_io.file_exists(fpath) or file_io.is_directory(fpath):
request.respond('%s does not exist or is directory' % fpath,
'text/plain', 400)
return
f = file_io.FileIO(fpath, 'r')
encoded_image_string = f.read()
f.close()
image_type = imghdr.what(None, encoded_image_string)
mime_type = _IMGHDR_TO_MIMETYPE.get(image_type,
_DEFAULT_IMAGE_MIMETYPE)
request.respond(encoded_image_string, mime_type)
def get_vocabulary(preprocess_output_dir, name):
"""Loads the vocabulary file as a list of strings.
Args:
preprocess_output_dir: Should contain the file CATEGORICAL_ANALYSIS % name.
name: name of the csv column.
Returns:
List of strings.
Raises:
ValueError: if file is missing.
"""
vocab_file = os.path.join(preprocess_output_dir,
CATEGORICAL_ANALYSIS % name)
if not file_io.file_exists(vocab_file):
raise ValueError('File %s not found in %s' %
(CATEGORICAL_ANALYSIS % name, preprocess_output_dir))
labels = file_io.read_file_to_string(vocab_file).split('\n')
label_values = [x for x in labels if x] # remove empty lines
return label_values
def proc_tensorboard_can_still_save_to_temp_even_if_it_exists(
test_obj):
model, _, train_ds, steps = _model_setup(test_obj, file_format='')
num_epoch = 2
saving_filepath = os.path.join(
test_obj.get_temp_dir(),
'logfile_%s' % (test_base.get_task_type()))
saving_filepath_for_temp = os.path.join(saving_filepath,
'workertemp_1')
os.mkdir(saving_filepath)
os.mkdir(saving_filepath_for_temp)
# Verifies that even if `saving_filepath_for_temp` exists, tensorboard
# can still save to temporary directory.
test_obj.assertTrue(file_io.file_exists(saving_filepath_for_temp))
model.fit(
x=train_ds,
epochs=num_epoch,
steps_per_epoch=steps,
callbacks=[callbacks.TensorBoard(log_dir=saving_filepath)])
def testWriteTransformFnIsIdempotent(self):
transform_output_dir = os.path.join(self.get_temp_dir(), 'output')
def mock_write_metadata_expand(unused_self, unused_metadata):
raise ArithmeticError('Some error')
with beam.Pipeline() as pipeline:
# Create an empty directory for the source saved model dir.
saved_model_dir = os.path.join(self.get_temp_dir(), 'source')
saved_model_dir_pcoll = (
pipeline
| 'CreateSavedModelDir' >> beam.Create([saved_model_dir]))
with mock.patch.object(
transform_fn_io.beam_metadata_io.WriteMetadata, 'expand',
mock_write_metadata_expand):
with self.assertRaisesRegexp(ArithmeticError, 'Some error'):
_ = (
(saved_model_dir_pcoll, object())
|
transform_fn_io.WriteTransformFn(transform_output_dir))
self.assertFalse(file_io.file_exists(transform_output_dir))
def read_vocab(args, column_name):
"""Reads a vocab file if it exists.
Args:
args: command line flags
column_name: name of column to that has a vocab file.
Returns:
List of vocab words or [] if the vocab file is not found.
"""
vocab_path = os.path.join(args.analysis_output_dir,
VOCAB_ANALYSIS_FILE % column_name)
if not file_io.file_exists(vocab_path):
return []
vocab_str = file_io.read_file_to_string(vocab_path)
vocab = pd.read_csv(
six.StringIO(vocab_str),
header=None,
names=['token', 'count'],
dtype=str) # Prevent pd from converting numerical categories.)
return vocab['token'].tolist()
def to_savedmodel(model, export_path):
"""Convert the Keras HDF5 model into TensorFlow SavedModel."""
if export_path.startswith('gs://'):
_save_oncloud(model, export_path)
else:
### Allow overwriting of export_path if it already exists by removing it first..
if file_io.file_exists(export_path):
file_io.delete_recursively(export_path)
builder = saved_model_builder.SavedModelBuilder(export_path)
signature = predict_signature_def(inputs={'input': model.inputs[0]},
outputs={'income': model.outputs[0]})
with K.get_session() as sess:
builder.add_meta_graph_and_variables(
sess=sess,
tags=[tag_constants.SERVING],
signature_def_map={
signature_constants.DEFAULT_SERVING_SIGNATURE_DEF_KEY:
signature
})
builder.save()
def _serve_sprite_image(self, request):
run = request.args.get('run')
if not run:
return Respond(request, 'query parameter "run" is required',
'text/plain', 400)
name = request.args.get('name')
if name is None:
return Respond(request, 'query parameter "name" is required',
'text/plain', 400)
if run not in self.configs:
return Respond(request, 'Unknown run: "%s"' % run, 'text/plain',
400)
config = self.configs[run]
embedding_info = self._get_embedding(name, config)
if not embedding_info or not embedding_info.sprite.image_path:
return Respond(
request,
'No sprite image file found for tensor "%s" in the config file "%s"'
% (name, self.config_fpaths[run]), 'text/plain', 400)
fpath = os.path.expanduser(embedding_info.sprite.image_path)
fpath = _rel_to_abs_asset_path(fpath, self.config_fpaths[run])
if not file_io.file_exists(fpath) or file_io.is_directory(fpath):
return Respond(request,
'"%s" does not exist or is directory' % fpath,
'text/plain', 400)
f = file_io.FileIO(fpath, 'rb')
encoded_image_string = f.read()
f.close()
image_type = imghdr.what(None, encoded_image_string)
mime_type = _IMGHDR_TO_MIMETYPE.get(image_type,
_DEFAULT_IMAGE_MIMETYPE)
return Respond(request, encoded_image_string, mime_type)
def append_index(filesets, step=False):
index_path = os.path.join(a.output_dir, "index.html")
if file_io.file_exists(index_path):
index = file_io.FileIO(index_path, "a")
else:
index = file_io.FileIO(index_path, "w")
index.write("<html><body><table><tr>")
if step:
index.write("<th>step</th>")
index.write(
"<th>name</th><th>input</th><th>output</th><th>target</th></tr>")
for fileset in filesets:
index.write("<tr>")
if step:
index.write("<td>%d</td>" % fileset["step"])
index.write("<td>%s</td>" % fileset["name"])
for kind in ["inputs", "outputs", "targets"]:
index.write("<td><img src='images/%s'></td>" % fileset[kind])
index.write("</tr>")
return index_path
def _read_latest_config_files(self, run_path_pairs):
"""Reads and returns the projector config files in every run directory."""
configs = {}
config_fpaths = {}
for run_name, assets_dir in run_path_pairs:
config = projector_config_pb2.ProjectorConfig()
config_fpath = os.path.join(assets_dir, PROJECTOR_FILENAME)
if file_io.file_exists(config_fpath):
file_content = file_io.read_file_to_string(config_fpath)
text_format.Merge(file_content, config)
has_tensor_files = False
for embedding in config.embeddings:
if embedding.tensor_path:
if not embedding.tensor_name:
embedding.tensor_name = os.path.basename(embedding.tensor_path)
has_tensor_files = True
break
if not config.model_checkpoint_path:
# See if you can find a checkpoint file in the logdir.
logdir = _assets_dir_to_logdir(assets_dir)
ckpt_path = _find_latest_checkpoint(logdir)
if not ckpt_path and not has_tensor_files:
continue
if ckpt_path:
config.model_checkpoint_path = ckpt_path
# Sanity check for the checkpoint file.
if (config.model_checkpoint_path and
not checkpoint_exists(config.model_checkpoint_path)):
logging.warning('Checkpoint file "%s" not found',
config.model_checkpoint_path)
continue
configs[run_name] = config
config_fpaths[run_name] = config_fpath
return configs, config_fpaths
def _load_xgboost_model(model_path):
"""Loads an xgboost model from GCS or local.
Args:
model_path: path to the directory containing the xgboost model.bst file.
This path can be either a local path or a GCS path.
Returns:
A xgboost.Booster with the model at model_path loaded.
Raises:
PredictionError: If there is a problem while loading the file.
"""
# TODO(b/64574886): Move this to the top once b/64574886 is resolved. Before
# then, it would work in production since we install xgboost in the
# Dockerfile, but the problem is the unit test that will fail to build and run
# since xgboost can not be added as a dependency to this target.
import xgboost as xgb # pylint: disable=g-import-not-at-top
model_file = os.path.join(model_path, MODEL_FILE_NAME_BST)
if not file_io.file_exists(model_file):
return None
try:
if model_file.startswith("gs://"):
with file_io.FileIO(model_file, mode="rb") as f:
# TODO(b/72736769): Load model in memory twice. Use readinto if/when
# that becomes available in FileIO. Or copy model locally before
# loading.
model_buf = bytearray(f.read())
return xgb.Booster(model_file=model_buf)
else:
return xgb.Booster(model_file=model_file)
except xgb.core.XGBoostError as e:
error_msg = "Could not load the model: {}. {}.".format(
os.path.join(model_path, MODEL_FILE_NAME_BST), str(e))
logging.critical(error_msg)
raise PredictionError(PredictionError.FAILED_TO_LOAD_MODEL, error_msg)
def evaluate():
tf.set_random_seed(0) # for reproducibility
# Write json of flags
model_flags_path = os.path.join(FLAGS.train_dir, "model_flags.json")
if not file_io.file_exists(model_flags_path):
raise IOError(("Cannot find file %s. Did you run train.py on the same "
"--train_dir?") % model_flags_path)
flags_dict = json.loads(file_io.FileIO(model_flags_path, mode="r").read())
## loading the mapping matrix
file_dir = '/home/weimin/yt8m/code/youtube-8m/' + 'mapping_from_2017_to_2018_withAddCol.npz'
with open(file_dir, 'rb') as f:
mapping_2017 = np.load(f)
with tf.Graph().as_default():
# convert feature_names and feature_sizes to lists of values
feature_names, feature_sizes = utils.GetListOfFeatureNamesAndSizes(
flags_dict["feature_names"], flags_dict["feature_sizes"])
if flags_dict["frame_features"]:
reader = readers.YT8MFrameFeatureReader(
feature_names=feature_names,
feature_sizes=feature_sizes,
num_classes=4716,
mapping_mat=mapping_2017)
else:
reader = readers.YT8MAggregatedFeatureReader(
feature_names=feature_names,
feature_sizes=feature_sizes,
num_classes=4716,
mapping_mat=mapping_2017)
model = find_class_by_name(flags_dict["model"],
[frame_level_models, video_level_models])()
label_loss_fn = find_class_by_name(flags_dict["label_loss"],
[losses])()
if FLAGS.eval_data_pattern is "":
raise IOError("'eval_data_pattern' was not specified. " +
"Nothing to evaluate.")
build_graph(reader=reader,
model=model,
eval_data_pattern=FLAGS.eval_data_pattern,
label_loss_fn=label_loss_fn,
num_readers=FLAGS.num_readers,
batch_size=FLAGS.batch_size)
logging.info("built evaluation graph")
video_id_batch = tf.get_collection("video_id_batch")[0]
prediction_batch = tf.get_collection("predictions")[0]
label_batch = tf.get_collection("labels")[0]
#loss = tf.get_collection("loss")[0]
summary_op = tf.get_collection("summary_op")[0]
saver = tf.train.Saver(tf.global_variables())
summary_writer = tf.summary.FileWriter(FLAGS.train_dir,
graph=tf.get_default_graph())
evl_metrics = eval_util.EvaluationMetrics(reader.num_classes,
FLAGS.top_k)
last_global_step_val = -1
while True:
last_global_step_val = evaluation_loop(
video_id_batch, prediction_batch, label_batch, summary_op,
saver, summary_writer, evl_metrics, last_global_step_val,
FLAGS.total_ens_times)
if FLAGS.run_once:
break
from __future__ import division
from __future__ import print_function
import tensorflow as tf
from tensorflow.python.lib.io import file_io
import numpy as np
from model import inference
FLAGS = tf.app.flags.FLAGS
tf.app.flags.DEFINE_integer('input_height', '72', '')
tf.app.flags.DEFINE_integer('input_width', '24', '')
tf.app.flags.DEFINE_integer('input_ch', '1', '')
tf.app.flags.DEFINE_string('restore', None, '')
tf.app.flags.DEFINE_bool('as_text', False, '')
if file_io.file_exists('./model'):
file_io.delete_recursively('./model')
builder = tf.saved_model.builder.SavedModelBuilder('./model')
with tf.Session(graph=tf.Graph()) as sess:
ph_images = tf.placeholder(
tf.float32,
shape=[None, FLAGS.input_height, FLAGS.input_width, FLAGS.input_ch])
ph_lengths = tf.placeholder(tf.float32)
ph_widths = tf.placeholder(tf.float32)
ph_areas = tf.placeholder(tf.float32)
logits = inference(ph_images, ph_lengths, ph_widths, ph_areas, 1.0, False)
accuracies = tf.nn.softmax(logits, name='accuracies')
_, predicts = tf.nn.top_k(accuracies, k=2, name='predicts')
def add_meta_graph_and_variables(self,
sess,
tags,
signature_def_map=None,
assets_collection=None,
legacy_init_op=None,
clear_devices=False,
main_op=None):
"""Adds the current meta graph to the SavedModel and saves variables.
Creates a Saver to save the variables from the provided session. Exports the
corresponding meta graph def. This function assumes that the variables to be
saved have been initialized. For a given `SavedModelBuilder`, this API must
be called exactly once and for the first meta graph to save. For subsequent
meta graph defs to be added, the `add_meta_graph()` API must be used.
Args:
sess: The TensorFlow session from which to save the meta graph and
variables.
tags: The set of tags with which to save the meta graph.
signature_def_map: The map of signature def map to add to the meta graph
def.
assets_collection: Assets collection to be saved with SavedModel.
legacy_init_op: Legacy support for op or group of ops to execute after the
restore op upon a load.
clear_devices: Set to true if the device info on the default graph should
be cleared.
main_op: Op or group of ops to execute when the graph is loaded.
"""
if self._has_saved_variables:
raise AssertionError(
"Graph state including variables and assets has "
"already been saved. Please invoke "
"`add_meta_graph()` instead.")
# Validate the signature def map to ensure all included TensorInfos are
# properly populated.
self._validate_signature_def_map(signature_def_map)
# Save asset files and write them to disk, if any.
self._save_and_write_assets(assets_collection)
# Create the variables sub-directory, if it does not exist.
variables_dir = os.path.join(
compat.as_text(self._export_dir),
compat.as_text(constants.VARIABLES_DIRECTORY))
if not file_io.file_exists(variables_dir):
file_io.recursive_create_dir(variables_dir)
variables_path = os.path.join(
compat.as_text(variables_dir),
compat.as_text(constants.VARIABLES_FILENAME))
if main_op is None:
# Add legacy init op to the SavedModel.
self._maybe_add_legacy_init_op(legacy_init_op)
else:
self._add_main_op(main_op)
# Initialize a saver to generate a sharded output for all saveables in the
# current scope.
saver = tf_saver.Saver(
variables._all_saveable_objects(), # pylint: disable=protected-access
sharded=True,
write_version=saver_pb2.SaverDef.V2,
allow_empty=True)
# Save the variables. Also, disable writing the checkpoint state proto. The
# file is not used during SavedModel loading. In addition, since a
# SavedModel can be copied or moved, this avoids the checkpoint state to
# become outdated.
saver.save(sess,
variables_path,
write_meta_graph=False,
write_state=False)
# Export the meta graph def.
# The graph almost certainly previously contained at least one Saver, and
# possibly several (e.g. one for loading a pretrained embedding, and another
# for the model weights). However, a *new* Saver was just created that
# includes all of the variables. In the context of the SavedModel, this
# new Saver is the only one that needs to be retained. The associated
# checkpoint that was saved just above contains all of the variable values.
# Thus, any preexisting Savers are redundant and useless at best, but worse
# may break downstream graph-processing tools, and can be confusing during
# debugging. It is therefore safe and wise to set `clear_extraneous_savers`
# to `True`, since it removes both the extraneous SaverDefs and their
# associated Save/Restore Ops from the graph.
meta_graph_def = saver.export_meta_graph(clear_devices=clear_devices,
clear_extraneous_savers=True)
# Tag the meta graph def and add it to the SavedModel.
self._tag_and_add_meta_graph(meta_graph_def, tags, signature_def_map)
# Mark this instance of SavedModel as having saved variables, such that
# subsequent attempts to save variables will fail.
self._has_saved_variables = True
# Find the location of this exact file.
_current_file_location = _inspect.getfile(_inspect.currentframe())
def _running_from_pip_package():
return any(
_current_file_location.startswith(dir_)
for dir_ in _site_packages_dirs)
if _running_from_pip_package():
for s in _site_packages_dirs:
# TODO(gunan): Add sanity checks to loaded modules here.
plugin_dir = _os.path.join(s, 'tensorflow-plugins')
if _fi.file_exists(plugin_dir):
_ll.load_library(plugin_dir)
# These symbols appear because we import the python package which
# in turn imports from tensorflow.core and tensorflow.python. They
# must come from this module. So python adds these symbols for the
# resolution to succeed.
# pylint: disable=undefined-variable
try:
del python
except NameError:
pass
try:
del core
except NameError:
pass