Developer Guide and Reference

  • 2021.3
  • 06/28/2021
  • Public Content
Contents

knn_cls_brute_force_dense_batch.cpp

/******************************************************************************* * Copyright 2020-2021 Intel Corporation * * 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. *******************************************************************************/ #define ONEDAL_DATA_PARALLEL #include "oneapi/dal/algo/knn.hpp" #include "oneapi/dal/io/csv.hpp" #include "oneapi/dal/exceptions.hpp" #include "example_util/utils.hpp" namespace dal = oneapi::dal; void run(sycl::queue& q) { const auto train_data_file_name = get_data_path("k_nearest_neighbors_train_data.csv"); const auto train_label_file_name = get_data_path("k_nearest_neighbors_train_label.csv"); const auto test_data_file_name = get_data_path("k_nearest_neighbors_test_data.csv"); const auto test_label_file_name = get_data_path("k_nearest_neighbors_test_label.csv"); const auto x_train = dal::read<dal::table>(q, dal::csv::data_source{ train_data_file_name }); const auto y_train = dal::read<dal::table>(q, dal::csv::data_source{ train_label_file_name }); const auto knn_desc = dal::knn::descriptor(5, 1); const auto x_test = dal::read<dal::table>(q, dal::csv::data_source{ test_data_file_name }); const auto y_test = dal::read<dal::table>(q, dal::csv::data_source{ test_label_file_name }); const auto train_result = dal::train(q, knn_desc, x_train, y_train); const auto test_result = dal::infer(q, knn_desc, x_test, train_result.get_model()); std::cout << "Test results:\n" << test_result.get_labels() << std::endl; std::cout << "True labels:\n" << y_test << std::endl; } int main(int argc, char const* argv[]) { for (auto d : list_devices()) { std::cout << "Running on " << d.get_info<sycl::info::device::name>() << "\n" << std::endl; auto q = sycl::queue{ d }; run(q); } return 0; }

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