1 /** 2 * Copyright 2020 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_TRAIN_OPT_ALLOCATOR_H_ 18 #define MINDSPORE_LITE_SRC_TRAIN_OPT_ALLOCATOR_H_ 19 20 #include <map> 21 #include "include/api/allocator.h" 22 23 namespace mindspore { 24 class OptAllocator { 25 public: align_size_(aligned_size)26 explicit OptAllocator(size_t aligned_size = 32) : align_size_(aligned_size) {} ~OptAllocator()27 ~OptAllocator() {} 28 size_t Malloc(size_t size); 29 void Free(size_t offset); total_size()30 size_t total_size() { return heap_; } 31 32 private: 33 size_t FindFree(size_t size); 34 void Reorder(size_t addr); 35 std::map<size_t, size_t> arena_; 36 std::map<size_t, size_t> alloc_; 37 size_t heap_ = 0; 38 size_t align_size_; 39 }; 40 }; // namespace mindspore 41 #endif // MINDSPORE_LITE_SRC_TRAIN_OPT_ALLOCATOR_H_ 42