1 /** 2 * Copyright 2021 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_CCSRC_RUNTIME_HARDWARE_CPU_CPU_MEMORY_POOL_H_ 18 #define MINDSPORE_CCSRC_RUNTIME_HARDWARE_CPU_CPU_MEMORY_POOL_H_ 19 20 #include <memory> 21 #include <string> 22 #include "utils/ms_utils.h" 23 #include "include/backend/mem_reuse/mem_dynamic_allocator.h" 24 25 namespace mindspore { 26 namespace device { 27 namespace cpu { 28 class BACKEND_EXPORT CPUMemoryPool : public DynamicMemPoolBestFit { 29 public: 30 ~CPUMemoryPool() override = default; 31 GetInstance()32 static CPUMemoryPool &GetInstance() { 33 static CPUMemoryPool instance; 34 return instance; 35 } 36 37 size_t AllocDeviceMem(size_t size, DeviceMemPtr *addr) override; 38 bool FreeDeviceMem(const DeviceMemPtr &addr) override; 39 size_t free_mem_size() override; GetMemoryPoolType()40 std::string GetMemoryPoolType() const override { return "CPU"; } 41 42 private: 43 CPUMemoryPool() = default; 44 DISABLE_COPY_AND_ASSIGN(CPUMemoryPool); 45 46 size_t total_used_memory_{0}; 47 }; 48 } // namespace cpu 49 } // namespace device 50 } // namespace mindspore 51 52 #endif // MINDSPORE_CCSRC_RUNTIME_HARDWARE_CPU_CPU_MEMORY_POOL_H_ 53