1/* Copyright 2015 The TensorFlow Authors. All Rights Reserved.
2
3Licensed under the Apache License, Version 2.0 (the "License");
4you may not use this file except in compliance with the License.
5You may obtain a copy of the License at
6
7 http://www.apache.org/licenses/LICENSE-2.0
8
9Unless required by applicable law or agreed to in writing, software
10distributed under the License is distributed on an "AS IS" BASIS,
11WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12See the License for the specific language governing permissions and
13limitations under the License.
14==============================================================================*/
15
16#ifndef TENSORFLOW_CORE_COMMON_RUNTIME_COSTMODEL_MANAGER_H_
17#define TENSORFLOW_CORE_COMMON_RUNTIME_COSTMODEL_MANAGER_H_
18
19#include <unordered_map>
20
21#include "tensorflow/core/framework/cost_graph.pb.h"
22#include "tensorflow/core/graph/costmodel.h"
23#include "tensorflow/core/graph/graph.h"
24#include "tensorflow/core/lib/core/errors.h"
25#include "tensorflow/core/lib/gtl/iterator_range.h"
26
27namespace tensorflow {
28
29// Used to manage all the cost models for a session.
30class CostModelManager {
31 public:
32 ~CostModelManager();
33
34 typedef std::unordered_map<const Graph*, CostModel*> CostModelMap;
35 typedef CostModelMap::iterator CostModelMapIter;
36
37 void ExportCostModels(CostModelMap* cost_models) {
38 mutex_lock l(mu_);
39 *cost_models = cost_models_;
40 }
41
42 CostModel* FindOrCreateCostModel(const Graph* graph);
43
44 bool RemoveCostModelForGraph(const Graph* graph);
45
46 Status AddToCostGraphDef(const Graph* graph, CostGraphDef* cost_graph);
47
48 private:
49 mutex mu_;
50 CostModelMap cost_models_ TF_GUARDED_BY(mu_);
51};
52
53} // namespace tensorflow
54
55#endif // TENSORFLOW_CORE_COMMON_RUNTIME_COSTMODEL_MANAGER_H_
56