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#include "tensorflow/core/common_runtime/costmodel_manager.h"
17#include "tensorflow/core/lib/gtl/map_util.h"
18
19namespace tensorflow {
20
21namespace {
22
23static const string kCostModelLogTag = "COST_MODEL";
24
25} // namespace
26
27CostModelManager::~CostModelManager() {
28 for (auto it : cost_models_) {
29 delete it.second;
30 }
31}
32
33CostModel* CostModelManager::FindOrCreateCostModel(const Graph* graph) {
34 mutex_lock l(mu_);
35 auto it = cost_models_.find(graph);
36 if (it != cost_models_.end()) {
37 return it->second;
38 }
39 CostModel* cost_model = new CostModel(false);
40 cost_model->InitFromGraph(*graph);
41 cost_models_.emplace(graph, cost_model);
42 return cost_model;
43}
44
45bool CostModelManager::RemoveCostModelForGraph(const Graph* graph) {
46 mutex_lock l(mu_);
47 auto itr = cost_models_.find(graph);
48 if (itr == cost_models_.end()) {
49 return false;
50 }
51 delete itr->second;
52 cost_models_.erase(graph);
53 return true;
54}
55
56Status CostModelManager::AddToCostGraphDef(const Graph* graph,
57 CostGraphDef* cost_graph) {
58 mutex_lock l(mu_);
59 // Get the cost model for the graph.
60 auto it = cost_models_.find(graph);
61 if (it == cost_models_.end()) {
62 return errors::InvalidArgument("The cost model graph doesn't exist.");
63 }
64 CostModel* cost_model = it->second;
65 cost_model->AddToCostGraphDef(graph, cost_graph);
66 return OkStatus();
67}
68
69} // namespace tensorflow
70