2 * Copyright (c) 2020 Samsung Electronics Co., Ltd. All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef __ONERT_BACKEND_CONTROLFLOW_DYNAMICTENSOR_MANAGER_H__
18 #define __ONERT_BACKEND_CONTROLFLOW_DYNAMICTENSOR_MANAGER_H__
20 #include "UserTensorRegistry.h"
22 #include <backend/IDynamicTensorManager.h>
23 #include <backend/cpu_common/MemoryManager.h>
24 #include <backend/cpu_common/TensorRegistry.h>
25 #include <ir/OperandInfo.h>
26 #include <ir/Operation.h>
36 // TODO Find optimized algorithm to manage memory.
39 * @brief Class to manage dynamic tensor and its memory
41 class DynamicTensorManager : public backend::IDynamicTensorManager
44 DynamicTensorManager(const std::shared_ptr<cpu_common::TensorRegistry> ®,
45 const std::shared_ptr<UserTensorRegistry> &user_reg);
47 virtual ~DynamicTensorManager() = default;
49 void applyShape(const ir::OperandIndex &ind, const ir::Shape &new_shape) override;
51 void buildTensor(const ir::OperandIndex &ind, const ir::OperandInfo &tensor_info,
52 ir::Layout backend_layout);
54 void planDealloc(ir::OperationIndex op_ind, ir::OperandIndex operand_ind) override;
55 void deallocInput(ir::OperationIndex op_ind) override;
56 void deallocSubgraphOutput(ir::OperandIndex ind) override;
60 * @brief Memory manager for dynamic tensor.
61 * @todo DynamicMemoryManager is not optimized. Optimized one is needed
63 std::shared_ptr<cpu_common::DynamicMemoryManager> _dynamic_mem_mgr;
64 // TODO Refactoring : Merge two TensorRegistries into one
65 const std::shared_ptr<cpu_common::TensorRegistry> _tensors;
66 const std::shared_ptr<UserTensorRegistry> _user_tensors;
68 // contains list of dynamic tensor index, which can be deallocated after running operation
69 // note: this map could contain static tensor index too. Careful use is required.
70 std::unordered_map<ir::OperationIndex, std::unordered_set<ir::OperandIndex>> _dealloc_tensor_map;
73 } // namespace controlflow
74 } // namespace backend
77 #endif // __ONERT_BACKEND_CONTROLFLOW_DYNAMICTENSOR_MANAGER_H__