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 #ifndef MINDSPORE_LITE_SRC_TRAIN_TRAIN_LOOP_H_ 17 #define MINDSPORE_LITE_SRC_TRAIN_TRAIN_LOOP_H_ 18 #include <vector> 19 #include <string> 20 #include <tuple> 21 #include <memory> 22 #include <unordered_map> 23 #include "include/errorcode.h" 24 #include "include/train/train_loop.h" 25 #include "include/train/metrics.h" 26 #include "include/dataset/datasets.h" 27 #include "include/dataset/iterator.h" 28 #include "src/common/log_adapter.h" 29 30 namespace mindspore { 31 namespace lite { 32 33 class TrainLoop : virtual public session::TrainLoop { 34 public: TrainLoop(session::LiteSession * session)35 explicit TrainLoop(session::LiteSession *session) : train_session_(session) {} 36 train_session()37 const session::LiteSession *train_session() override { return train_session_; } 38 Reset()39 int Reset() override { 40 epoch_ = 0; 41 return RET_OK; 42 } 43 44 virtual ~TrainLoop(); 45 Init(std::vector<mindspore::session::Metrics * > metrics)46 int Init(std::vector<mindspore::session::Metrics *> metrics) override { 47 metrics_ = metrics; 48 return RET_OK; 49 } 50 SetKernelCallBack(const KernelCallBack & before,const KernelCallBack & after)51 int SetKernelCallBack(const KernelCallBack &before, const KernelCallBack &after) override { 52 before_cb_ = before; 53 after_cb_ = after; 54 return RET_OK; 55 } 56 57 int Train(int epochs, dataset::Dataset *dataset, std::vector<session::TrainLoopCallBack *> cbs, 58 LoadDataFunc load_func = nullptr) override; 59 int Eval(dataset::Dataset *dataset, std::vector<session::TrainLoopCallBack *> cbs, LoadDataFunc load_func = nullptr, 60 int max_steps = 0) override; 61 GetMetrics()62 std::vector<mindspore::session::Metrics *> GetMetrics() override { return metrics_; } 63 64 protected: 65 static int LoadData(std::vector<tensor::MSTensor *> inputs, dataset::MSTensorVec *dataset_vec); 66 67 session::LiteSession *train_session_ = nullptr; 68 unsigned int epoch_ = 0; 69 KernelCallBack before_cb_ = nullptr; 70 KernelCallBack after_cb_ = nullptr; 71 int batch_size; 72 std::vector<mindspore::session::Metrics *> metrics_; 73 }; 74 } // namespace lite 75 } // namespace mindspore 76 #endif // MINDSPORE_LITE_SRC_TRAIN_TRAIN_LOOP_H_ 77