text: // Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //     http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  #include <gflags/gflags.h>
  #include <gtest/gtest.h>
  #include <vector>
  #include "lite/api/lite_api_test_helper.h"
  #include "lite/api/paddle_api.h"
  #include "lite/api/paddle_use_kernels.h"
  #include "lite/api/paddle_use_ops.h"
  #include "lite/api/paddle_use_passes.h"
  #include "lite/api/test_helper.h"
  #include "lite/utils/cp_logging.h"
  
  namespace paddle {
  namespace lite {
  
  TEST(Resnet50, test_resnet50_lite_xpu) {
    lite_api::CxxConfig config;
    config.set_model_dir(FLAGS_model_dir);
    config.set_valid_places({lite_api::Place{TARGET(kXPU), PRECISION(kFloat)},
                             lite_api::Place{TARGET(kX86), PRECISION(kFloat)},
                             lite_api::Place{TARGET(kHost), PRECISION(kFloat)}});
    config.set_xpu_workspace_l3_size_per_thread();
    auto predictor = lite_api::CreatePaddlePredictor(config);
  
    auto input_tensor = predictor->GetInput(0);
    std::vector<int64_t> input_shape{1, 3, 224, 224};
    input_tensor->Resize(input_shape);
    auto* data = input_tensor->mutable_data<float>();
    int input_num = 1;
    for (size_t i = 0; i < input_shape.size(); ++i) {
      input_num *= input_shape[i];
    }
    for (int i = 0; i < input_num; i++) {
      data[i] = 1;
    }
  
    for (int i = 0; i < FLAGS_warmup; ++i) {
      predictor->Run();
    }
  
    auto start = GetCurrentUS();
    for (int i = 0; i < FLAGS_repeats; ++i) {
      predictor->Run();
    }
  
    LOG(INFO) << "================== Speed Report ===================";
    LOG(INFO) << "Model: " << FLAGS_model_dir << ", threads num " << FLAGS_threads
              << ", warmup: " << FLAGS_warmup << ", repeats: " << FLAGS_repeats
              << ", spend " << (GetCurrentUS() - start) / FLAGS_repeats / 1000.0
              << " ms in average.";
  
    std::vector<std::vector<float>> results;
    results.emplace_back(std::vector<float>(
        {0.000268651, 0.000174053, 0.000213181, 0.000396771, 0.000591516,
         0.00018169,  0.000289721, 0.000855934, 0.000732185, 9.2055e-05,
         0.000220664, 0.00235289,  0.00571265,  0.00357688,  0.00129667,
         0.000465392, 0.000143775, 0.000211628, 0.000617144, 0.000265033}));
    auto out = predictor->GetOutput(0);
    ASSERT_EQ(out->shape().size(), 2);
    ASSERT_EQ(out->shape()[0], 1);
    ASSERT_EQ(out->shape()[1], 1000);
  
    int step = 50;
    for (size_t i = 0; i < results.size(); ++i) {
      for (size_t j = 0; j < results[i].size(); ++j) {
        EXPECT_NEAR(out->data<float>()[j * step + (out->shape()[1] * i)],
                    results[i][j],
                    1e-5);
      }
    }
  }
  
  }  // namespace lite
  }  // namespace paddle
  