1 /** 2 * Copyright 2022 Huawei Technologies Co., Ltd 3 * 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 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 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. 15 */ 16 17 #ifndef MINDSPORE_LITE_SRC_EXTENDRT_DYNAMIC_MEM_MANAGER_H_ 18 #define MINDSPORE_LITE_SRC_EXTENDRT_DYNAMIC_MEM_MANAGER_H_ 19 20 #include <memory> 21 #include <vector> 22 #include <mutex> 23 #include <map> 24 #include <unordered_map> 25 #include <deque> 26 #include "src/extendrt/numa_adapter.h" 27 28 namespace mindspore { 29 struct Block { 30 // used_ may be true when ref_count_ == 0 31 bool used_ = false; 32 void *data_ = nullptr; 33 size_t size_; 34 int64_t index_; 35 int64_t ref_count_ = 0; 36 int64_t pre_index_ = -1; 37 int64_t next_index_ = -1; 38 }; 39 40 class MemOperator { 41 public: 42 explicit MemOperator(int node_id); 43 ~MemOperator(); 44 45 void *Malloc(size_t size); 46 void Free(void *ptr); 47 int SetRefCount(void *ptr, int ref_count); 48 int IncRefCount(void *ptr, int ref_count); 49 int DecRefCount(void *ptr, int ref_count); 50 int RefCount(void *ptr); set_node_id(int node_id)51 inline void set_node_id(int node_id) { node_id_ = node_id; } node_id(void)52 inline int node_id(void) const { return node_id_; } 53 54 private: 55 Block *GetBlock(); 56 void EraseFreeBlock(const int64_t index); 57 void AddGarbageBlock(const int64_t index); 58 void *Allocate(size_t rounded_size, int node_id, size_t *allocate_size); 59 60 private: 61 int node_id_ = -1; 62 // all data blocks 63 size_t block_count_ = 0; 64 int64_t garbage_block_; 65 std::shared_ptr<numa::NUMAAdapter> numa_instance_ = nullptr; 66 std::mutex mutex_; 67 std::vector<Block> blocks_; 68 // key: data size, value: Block index 69 std::multimap<size_t, int64_t> free_blocks_; 70 // key: data addr, value: Block index 71 std::unordered_map<void *, int64_t> datas_; 72 std::unordered_map<void *, size_t> all_datas_; 73 }; 74 75 class DynamicMemManager { 76 public: 77 DynamicMemManager() = default; 78 ~DynamicMemManager() = default; 79 80 std::shared_ptr<MemOperator> GetMemOperator(const int node_id); 81 82 private: 83 std::map<int, std::shared_ptr<MemOperator>> nodes_mem_; 84 std::mutex mutex_; 85 }; 86 } // namespace mindspore 87 88 #endif // MINDSPORE_LITE_SRC_EXTENDRT_DYNAMIC_MEM_MANAGER_H_ 89