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_RUNTIME_KERNEL_CPU_FP32_GRAD_ADAM_H_ 18 #define MINDSPORE_LITE_SRC_RUNTIME_KERNEL_CPU_FP32_GRAD_ADAM_H_ 19 20 #include <vector> 21 #include "src/train/optimizer_kernel.h" 22 #include "nnacl/fp32_grad/optimizer.h" 23 24 namespace mindspore::kernel { 25 constexpr int kAdamLrIndex = 5; 26 constexpr int kAdamGradIndex = 9; 27 28 class AdamCPUKernel : public OptimizerKernel { 29 public: AdamCPUKernel(OpParameter * parameter,const std::vector<lite::Tensor * > & inputs,const std::vector<lite::Tensor * > & outputs,const lite::InnerContext * ctx)30 explicit AdamCPUKernel(OpParameter *parameter, const std::vector<lite::Tensor *> &inputs, 31 const std::vector<lite::Tensor *> &outputs, const lite::InnerContext *ctx) 32 : OptimizerKernel(parameter, inputs, outputs, ctx, kAdamLrIndex, kAdamGradIndex), 33 thread_count_(ctx->thread_num_) { 34 adam_param_ = reinterpret_cast<AdamParameter *>(parameter); 35 } ~AdamCPUKernel()36 ~AdamCPUKernel() override { 37 if (grad_sum_ != nullptr) { 38 ms_context_->allocator->Free(grad_sum_); 39 grad_sum_ = nullptr; 40 } 41 } 42 int Prepare() override; 43 int ReSize() override; 44 int Run() override; 45 int DoExecute(int task_id); 46 int OptimizerStep() override; 47 std::vector<int> GetOptimizerParamsIdxs() const override; 48 std::vector<int> GetTrainableParamsIdxs() const override; 49 50 private: 51 int thread_count_; 52 AdamParameter *adam_param_; 53 }; 54 } // namespace mindspore::kernel 55 56 #endif // MINDSPORE_LITE_SRC_RUNTIME_KERNEL_CPU_FP32_GRAD_ADAM_H_ 57