def __init__(self, object_graph_proto, saved_model_proto, export_dir):
meta_graph = saved_model_proto.meta_graphs[0]
self._asset_file_def = meta_graph.asset_file_def
self._operation_attributes = {
node.name: node.attr for node in meta_graph.graph_def.node}
self._proto = object_graph_proto
self._export_dir = export_dir
self._concrete_functions = (
function_deserialization.load_function_def_library(
meta_graph.graph_def.library))
for name, concrete_function in self._concrete_functions.items():
# Wrap all the concrete function so that they are capable of dealing with
# both in replica and cross replica cases.
self._concrete_functions[name] = _WrapperFunction(concrete_function)
self._load_all()
# TODO(b/124045874): There are limitations with functions whose captures
# trigger other functions to be executed. For now it is only guaranteed to
# work if the captures of a function only trigger functions without
# captures.
self._setup_functions_structures()
self._setup_functions_captures()
self._restore_checkpoint()
for node in self._nodes:
if isinstance(node, tracking.CapturableResource):
init_op = node._initialize() # pylint: disable=protected-access
if not context.executing_eagerly():
ops.add_to_collection(ops.GraphKeys.TABLE_INITIALIZERS, init_op)
def __init__(self, object_graph_proto, saved_model_proto, export_dir,
ckpt_options):
meta_graph = saved_model_proto.meta_graphs[0]
self._asset_file_def = meta_graph.asset_file_def
self._operation_attributes = {
node.name: node.attr for node in meta_graph.graph_def.node}
self._proto = object_graph_proto
self._export_dir = export_dir
self._concrete_functions = (
function_deserialization.load_function_def_library(
meta_graph.graph_def.library))
self._checkpoint_options = ckpt_options
for name, concrete_function in self._concrete_functions.items():
# Wrap all the concrete function so that they are capable of dealing with
# both in replica and cross replica cases.
self._concrete_functions[name] = _WrapperFunction(concrete_function)
self._load_all()
self._restore_checkpoint()
for node in self._nodes:
if isinstance(node, tracking.CapturableResource):
init_op = node._initialize() # pylint: disable=protected-access
if not context.executing_eagerly():
ops.add_to_collection(ops.GraphKeys.TABLE_INITIALIZERS, init_op)
def __init__(self, object_graph_proto, saved_model_proto, export_dir):
meta_graph = saved_model_proto.meta_graphs[0]
self._asset_file_def = meta_graph.asset_file_def
self._operation_attributes = {
node.name: node.attr
for node in meta_graph.graph_def.node
}
self._proto = object_graph_proto
self._export_dir = export_dir
self._concrete_functions = (
function_deserialization.load_function_def_library(
meta_graph.graph_def.library))
self._load_all()
# TODO(b/124045874): There are limitations with functions whose captures
# trigger other functions to be executed. For now it is only guaranteed to
# work if the captures of a function only trigger functions without
# captures.
self._setup_functions_structures()
self._setup_functions_captures()
self._restore_checkpoint()
for node in self._nodes:
if isinstance(node, tracking.TrackableResource):
init_op = node.initialize()
ops.add_to_collection(ops.GraphKeys.TABLE_INITIALIZERS,
init_op)
def __init__(self, object_graph_proto, saved_model_proto, export_dir,
ckpt_options, save_options, filters):
meta_graph = saved_model_proto.meta_graphs[0]
self._asset_file_def = meta_graph.asset_file_def
self._operation_attributes = {
node.name: node.attr
for node in meta_graph.graph_def.node
}
self._proto = object_graph_proto
self._export_dir = export_dir
self._concrete_functions = (
function_deserialization.load_function_def_library(
library=meta_graph.graph_def.library,
saved_object_graph=self._proto,
wrapper_function=_WrapperFunction))
# Store a set of all concrete functions that have been set up with
# captures.
self._restored_concrete_functions = set()
self._checkpoint_options = ckpt_options
self._save_options = save_options
self._pretty_printer = checkpoint.ObjectGraphProtoPrettyPrinter(
self._proto)
# Stores user-defined node_filters argument.
self._node_filters = filters
# Stores map of string paths to integers.
self._node_path_to_id = self._convert_node_paths_to_ints()
self._loaded_nodes = {}
if isinstance(filters, dict):
# If node_filters is a dict, then the values may contain already created
# trackable objects. In this case, create a dictionary mapping node IDs to
# the already created nodes. This dict will be updated in
# `_retrieve_all_filtered_nodes` with tracked children.
for node_path, node in filters.items():
if isinstance(node, tuple):
self._loaded_nodes[self._node_path_to_id[node_path]] = node
else:
self._loaded_nodes[self._node_path_to_id[node_path]] = (
node, setattr)
# Get a list of all integer node ids to load, or None if all nodes should be
# loaded. This list includes ids of child nodes.
self._filtered_nodes = self._retrieve_all_filtered_nodes()
# Order all nodes or filtered nodes using the dependencies.
self._ordered_node_ids = self._generate_ordered_node_ids()
self._load_all()
if not save_options.experimental_skip_checkpoint:
self._restore_checkpoint()
for node in self._nodes:
if isinstance(node, resource.CapturableResource):
init_op = node._initialize() # pylint: disable=protected-access
if not context.executing_eagerly():
ops.add_to_collection(ops.GraphKeys.TABLE_INITIALIZERS,
init_op)
def __init__(self, object_graph_proto, saved_model_proto, export_dir):
meta_graph = saved_model_proto.meta_graphs[0]
self._asset_file_def = meta_graph.asset_file_def
self._proto = object_graph_proto
self._export_dir = export_dir
self._functions = function_deserialization.load_function_def_library(
meta_graph.graph_def.library)
self._load_all()
self._bind_function_captures()
self._restore_checkpoint()
def __init__(self, object_graph_proto, saved_model_proto, export_dir):
meta_graph = saved_model_proto.meta_graphs[0]
self._asset_file_def = meta_graph.asset_file_def
self._proto = object_graph_proto
self._export_dir = export_dir
self._concrete_functions = (
function_deserialization.load_function_def_library(
meta_graph.graph_def.library))
self._load_all()
self._setup_functions()
self._restore_checkpoint()
def __init__(self, object_graph_proto, saved_model_proto, export_dir,
ckpt_options, save_options, filters):
meta_graph = saved_model_proto.meta_graphs[0]
self._asset_file_def = meta_graph.asset_file_def
self._operation_attributes = {
node.name: node.attr
for node in meta_graph.graph_def.node
}
self._proto = object_graph_proto
self._export_dir = export_dir
self._concrete_functions = (
function_deserialization.load_function_def_library(
meta_graph.graph_def.library))
self._checkpoint_options = ckpt_options
self._save_options = save_options
# Stores user-defined node_filters argument.
self._node_filters = filters
# Stores map of string paths to integers.
self._node_path_to_id = self._convert_node_paths_to_ints()
self._loaded_nodes = {}
if isinstance(filters, dict):
# If node_filters is a dict, then the values may contain already created
# trackable objects. In this case, create a dictionary mapping node IDs to
# the already created nodes. This dict will be updated in
# `_retrieve_all_filtered_nodes` with tracked dependencies.
for node_path, node in filters.items():
if isinstance(node, tuple):
self._loaded_nodes[self._node_path_to_id[node_path]] = node
else:
self._loaded_nodes[self._node_path_to_id[node_path]] = (
node, setattr)
# Get a list of all integer node ids to load, or None if all nodes should be
# loaded. This list includes ids of child nodes.
self._filtered_nodes = self._retrieve_all_filtered_nodes()
for name, concrete_function in self._concrete_functions.items():
# Wrap all the concrete function so that they are capable of dealing with
# both in replica and cross replica cases.
self._concrete_functions[name] = _WrapperFunction(
concrete_function)
self._load_all()
self._restore_checkpoint()
for node in self._nodes:
if isinstance(node, tracking.CapturableResource):
init_op = node._initialize() # pylint: disable=protected-access
if not context.executing_eagerly():
ops.add_to_collection(ops.GraphKeys.TABLE_INITIALIZERS,
init_op)
def __init__(self, object_graph_proto, saved_model_proto, export_dir):
meta_graph = saved_model_proto.meta_graphs[0]
self._asset_file_def = meta_graph.asset_file_def
self._operation_attributes = {
node.name: node.attr for node in meta_graph.graph_def.node}
self._proto = object_graph_proto
self._export_dir = export_dir
self._concrete_functions = (
function_deserialization.load_function_def_library(
meta_graph.graph_def.library))
self._load_all()
self._setup_functions()
self._restore_checkpoint()
def __init__(self, object_graph_proto, saved_model_proto, export_dir):
meta_graph = saved_model_proto.meta_graphs[0]
self._asset_file_def = meta_graph.asset_file_def
self._operation_attributes = {
node.name: node.attr for node in meta_graph.graph_def.node}
self._proto = object_graph_proto
self._export_dir = export_dir
self._concrete_functions = (
function_deserialization.load_function_def_library(
meta_graph.graph_def.library))
self._load_all()
# TODO(b/124045874): There are limitations with functions whose captures
# trigger other functions to be executed. For now it is only guaranteed to
# work if the captures of a function only trigger functions without
# captures.
self._setup_functions_structures()
self._setup_functions_captures()
self._restore_checkpoint()
for node in self._nodes:
if isinstance(node, tracking.CapturableResource):
init_op = node._initialize() # pylint: disable=protected-access
if not context.executing_eagerly():
ops.add_to_collection(ops.GraphKeys.TABLE_INITIALIZERS, init_op)
def load(self, tags):
"""Creates an object from the MetaGraph identified by `tags`."""
meta_graph_def = self.get_meta_graph_def_from_tags(tags)
load_shared_name_suffix = "_load_{}".format(ops.uid())
functions = function_deserialization.load_function_def_library(
meta_graph_def.graph_def.library,
load_shared_name_suffix=load_shared_name_suffix)
# Replace existing functions in the MetaGraphDef with renamed functions so
# we don't have duplicates or name collisions.
meta_graph_def.graph_def.library.Clear()
for function in functions.values():
meta_graph_def.graph_def.library.function.add().CopyFrom(
function.function_def)
# We've renamed functions and shared names. We need the same operation on
# the GraphDef itself for consistency.
for node_def in meta_graph_def.graph_def.node:
function_deserialization.fix_node_def(
node_def,
functions,
load_shared_name_suffix,
debug_name="MetaGraph import")
load_graph_returns = [None]
wrapped = wrap_function.wrap_function(functools.partial(
self.load_graph, load_graph_returns, meta_graph_def),
signature=[])
saver, = load_graph_returns
self.restore_variables(wrapped, saver)
with wrapped.graph.as_default():
init_op = loader_impl.get_init_op(
meta_graph_def
) or monitored_session.Scaffold.default_local_init_op()
# Add a dummy Tensor we know we can fetch to add control dependencies to.
init_anchor = constant_op.constant(0., name="dummy_fetch")
root = tracking.AutoTrackable()
asset_feed_tensors = []
asset_paths = []
for tensor_name, value in loader_impl.get_asset_tensors(
self._export_dir, meta_graph_def).items():
asset_feed_tensors.append(
wrapped.graph.as_graph_element(tensor_name))
asset_paths.append(tracking.Asset(value))
init_fn = wrapped.prune(
feeds=asset_feed_tensors,
fetches=[init_anchor,
wrapped.graph.as_graph_element(init_op)])
initializer = _Initializer(init_fn, asset_paths)
# pylint: disable=protected-access
local_init_op, _ = initializer._initialize()
# pylint: enable=protected-access
with ops.init_scope():
if not context.executing_eagerly():
ops.add_to_collection(ops.GraphKeys.TABLE_INITIALIZERS,
local_init_op)
for variable in wrapped.graph.get_collection_ref(
ops.GraphKeys.LOCAL_VARIABLES):
# pylint: disable=protected-access
variable._initializer_op = local_init_op
# pylint: enable=protected-access
root.initializer = initializer
root.asset_paths = asset_paths
signature_functions = self._extract_signatures(wrapped, meta_graph_def)
root.signatures = signature_serialization.create_signature_map(
signature_functions)
root.variables = list(wrapped.graph.variables)
root.tensorflow_version = (
meta_graph_def.meta_info_def.tensorflow_version)
root.tensorflow_git_version = (
meta_graph_def.meta_info_def.tensorflow_git_version)
root.graph = wrapped.graph
root.prune = wrapped.prune
return root