1 /* Copyright 2019 The TensorFlow Authors. All Rights Reserved. 2 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 ==============================================================================*/ 15 16 #ifndef TENSORFLOW_CORE_GRAPPLER_UTILS_CANONICALIZER_H_ 17 #define TENSORFLOW_CORE_GRAPPLER_UTILS_CANONICALIZER_H_ 18 19 #include "tensorflow/core/framework/graph.pb.h" 20 #include "tensorflow/core/framework/node_def.pb.h" 21 #include "tensorflow/core/lib/core/status.h" 22 23 namespace tensorflow { 24 namespace grappler { 25 26 // Canonicalizes node by performing the following steps 27 // - sorting control inputs, 28 // - sorting data inputs if the node represents a commutative op. 29 void CanonicalizeNode(NodeDef* node); 30 31 // Canonicalizes all nodes in graph. 32 void CanonicalizeGraph(GraphDef* graph); 33 34 // Compresses Const and HostConstant nodes in the graph to the smallest 35 // representation possible, either 36 // a) truncated repeated field representation, or 37 // b) raw serialized byte format. 38 // Each node is only modified if it is larger than 64 bytes and compression 39 // reduces its size by more than 50%. 40 void CompressConstants(GraphDef* graph); 41 42 } // namespace grappler 43 } // namespace tensorflow 44 45 #endif // TENSORFLOW_CORE_GRAPPLER_UTILS_CANONICALIZER_H_ 46