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/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License 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.
==============================================================================*/
#ifndef TENSORFLOW_CONTRIB_TENSORRT_SEGMENT_SEGMENT_H_
#define TENSORFLOW_CONTRIB_TENSORRT_SEGMENT_SEGMENT_H_
#include <set>
#include <vector>
#include "tensorflow/core/framework/graph.pb.h"
#include "tensorflow/core/graph/graph.h"
#include "tensorflow/core/lib/core/status.h"
#include "tensorflow/core/platform/types.h"
namespace tensorflow {
namespace tensorrt {
namespace segment {
using SegmentNodesVector = std::vector<std::set<string>>;
struct SegmentOptions {
// Segment must contain at least this many nodes.
int minimum_segment_size = 2;
std::set<string> exclude_node_list;
};
// Get the subgraphs of a graph that can be handled by TensorRT.
//
// @param gdef The GraphDef describing the network
// @param candidate_fn A function that returns true for a NodeDef if
// that node can be handled by TensorRT.
// @param segments Returns the TensorRT segments/subgraphs. Each entry
// in the vector describes a subgraph by giving a set of the names of
// all the NodeDefs in that subgraph.
// @return the status.
tensorflow::Status SegmentGraph(
const tensorflow::GraphDef& gdef,
const std::function<bool(const tensorflow::Node*)>& candidate_fn,
const SegmentOptions& options, SegmentNodesVector* segments);
} // namespace segment
} // namespace tensorrt
} // namespace tensorflow
#endif // TENSORFLOW_CONTRIB_TENSORRT_SEGMENT_SEGMENT_H_
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