TensorFlow Graph Editor.
The TensorFlow Graph Editor library allows for modification of an existing tf.Graph
instance in-place.
The author's github username is purpledog.
Appending new nodes is the only graph editing operation allowed by the TensorFlow core library. The Graph Editor library is an attempt to allow for other kinds of editing operations, namely, rerouting and transforming.
Important: modifying a graph in-place with the Graph Editor must be done offline
, that is, without any active sessions.
Of course new operations can be appended online but Graph Editor specific operations like rerouting and transforming can currently only be done offline.
Here is an example of what you cannot do:
same
previously created session.To edit an already running graph, follow these steps:
Note that this procedure is very costly because a new session must be created after any modifications. Among other things, it takes time because the entire graph state must be saved and restored again.
Most of the functions in the Graph Editor library operate on sub-graph. More precisely, they take as input arguments instances of the SubGraphView class (or anything which can be converted to it). Doing so allows the same function to transparently operate on single operations as well as sub-graph of any size.
A subgraph can be created in several ways:
my_sgv = ge.sgv(ops)
my_sgv = ge.sgv_scope("foo/bar", graph=tf.get_default_graph())
my_sgv = ge.sgv("foo/.*/.*read$", graph=tf.get_default_graph())
Note that the Graph Editor is meant to manipulate several graphs at the same time, typically during transform or copy operation. For that reason, to avoid any confusion, the default graph is never used and the graph on which to operate must always be given explicitly. This is the reason why graph=tf.get_default_graph()
is used in the code snippets above.
tf.Graph
.tf.contrib.graph_editor.make_list_of_op
tf.contrib.graph_editor.get_tensors
tf.contrib.graph_editor.make_list_of_t
tf.contrib.graph_editor.get_generating_ops
tf.contrib.graph_editor.get_consuming_ops
tf.contrib.graph_editor.ControlOutputs
tf.contrib.graph_editor.placeholder_name
tf.contrib.graph_editor.make_placeholder_from_tensor
tf.contrib.graph_editor.make_placeholder_from_dtype_and_shape
tf.contrib.graph_editor.filter_ts
tf.contrib.graph_editor.filter_ts_from_regex
tf.contrib.graph_editor.filter_ops
tf.contrib.graph_editor.filter_ops_from_regex
tf.contrib.graph_editor.get_name_scope_ops
tf.contrib.graph_editor.check_cios
tf.contrib.graph_editor.get_ops_ios
tf.contrib.graph_editor.compute_boundary_ts
tf.contrib.graph_editor.get_within_boundary_ops
tf.contrib.graph_editor.get_forward_walk_ops
tf.contrib.graph_editor.get_backward_walk_ops
tf.contrib.graph_editor.get_walks_intersection_ops
tf.contrib.graph_editor.get_walks_union_ops
tf.contrib.graph_editor.select_ops
tf.contrib.graph_editor.select_ts
tf.contrib.graph_editor.select_ops_and_ts
tf.contrib.graph_editor.SubGraphView
tf.contrib.graph_editor.make_view
tf.contrib.graph_editor.make_view_from_scope
tf.contrib.graph_editor.swap_ts
tf.contrib.graph_editor.reroute_ts
tf.contrib.graph_editor.swap_inputs
tf.contrib.graph_editor.reroute_inputs
tf.contrib.graph_editor.swap_outputs
tf.contrib.graph_editor.reroute_outputs
tf.contrib.graph_editor.swap_ios
tf.contrib.graph_editor.reroute_ios
tf.contrib.graph_editor.remove_control_inputs
tf.contrib.graph_editor.add_control_inputs
tf.contrib.graph_editor.detach_control_inputs
tf.contrib.graph_editor.detach_control_outputs
tf.contrib.graph_editor.detach_inputs
tf.contrib.graph_editor.detach_outputs
tf.contrib.graph_editor.detach
tf.contrib.graph_editor.connect
tf.contrib.graph_editor.bypass
tf.contrib.graph_editor.replace_t_with_placeholder_handler
tf.contrib.graph_editor.keep_t_if_possible_handler
tf.contrib.graph_editor.assign_renamed_collections_handler
tf.contrib.graph_editor.transform_op_if_inside_handler
tf.contrib.graph_editor.copy_op_handler
tf.contrib.graph_editor.Transformer
tf.contrib.graph_editor.copy
tf.contrib.graph_editor.copy_with_input_replacements
tf.contrib.graph_editor.graph_replace
© 2017 The TensorFlow Authors. All rights reserved.
Licensed under the Creative Commons Attribution License 3.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/api_guides/python/contrib.graph_editor