151 lines
4.4 KiB
C++
151 lines
4.4 KiB
C++
//@HEADER
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// ************************************************************************
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//
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// Kokkos v. 4.0
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// Copyright (2022) National Technology & Engineering
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// Solutions of Sandia, LLC (NTESS).
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Part of Kokkos, under the Apache License v2.0 with LLVM Exceptions.
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// See https://kokkos.org/LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//@HEADER
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#include <TestStdAlgorithmsCommon.hpp>
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#include <utility>
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namespace Test {
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namespace stdalgos {
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namespace Reverse {
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namespace KE = Kokkos::Experimental;
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template <class ViewType>
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void fill_view(ViewType dest_view, const std::string& name) {
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using value_type = typename ViewType::value_type;
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using exe_space = typename ViewType::execution_space;
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const std::size_t ext = dest_view.extent(0);
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using aux_view_t = Kokkos::View<value_type*, exe_space>;
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aux_view_t aux_view("aux_view", ext);
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auto v_h = create_mirror_view(Kokkos::HostSpace(), aux_view);
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if (name == "empty") {
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// no op
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}
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else if (name == "one-element-a") {
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v_h(0) = static_cast<value_type>(1);
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}
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else if (name == "one-element-b") {
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v_h(0) = static_cast<value_type>(2);
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}
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else if (name == "two-elements-a") {
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v_h(0) = static_cast<value_type>(1);
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v_h(1) = static_cast<value_type>(2);
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}
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else if (name == "two-elements-b") {
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v_h(0) = static_cast<value_type>(2);
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v_h(1) = static_cast<value_type>(-1);
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}
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else if (name == "small-a" || name == "small-b" || name == "medium" ||
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name == "large") {
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for (std::size_t i = 0; i < ext; ++i) {
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v_h(i) = static_cast<value_type>(-11) + static_cast<value_type>(i);
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}
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}
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else {
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throw std::runtime_error("invalid choice");
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}
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Kokkos::deep_copy(aux_view, v_h);
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CopyFunctor<aux_view_t, ViewType> F1(aux_view, dest_view);
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Kokkos::parallel_for("copy", dest_view.extent(0), F1);
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}
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template <class ViewType1, class ViewType2>
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void verify_data(ViewType1 test_view, ViewType2 orig_view) {
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auto tv_h = create_host_space_copy(test_view);
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auto ov_h = create_host_space_copy(orig_view);
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const std::size_t ext = test_view.extent(0);
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for (std::size_t i = 0; i < ext; ++i) {
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ASSERT_EQ(tv_h(i), ov_h(ext - i - 1));
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}
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}
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std::string value_type_to_string(int) { return "int"; }
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std::string value_type_to_string(double) { return "double"; }
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template <class Tag, class ValueType, class InfoType>
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void run_single_scenario(const InfoType& scenario_info) {
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const auto name = std::get<0>(scenario_info);
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const std::size_t view_ext = std::get<1>(scenario_info);
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// std::cout << "reverse: " << name << ", " << view_tag_to_string(Tag{}) << ",
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// "
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// << value_type_to_string(ValueType()) << std::endl;
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auto test_view = create_view<ValueType>(Tag{}, view_ext, "reverse");
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auto orig_view = create_view<ValueType>(Tag{}, view_ext, "reverse");
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{
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fill_view(test_view, name);
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fill_view(orig_view, name);
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KE::reverse(exespace(), KE::begin(test_view), KE::end(test_view));
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verify_data(test_view, orig_view);
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}
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{
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fill_view(test_view, name);
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fill_view(orig_view, name);
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KE::reverse("label", exespace(), KE::begin(test_view), KE::end(test_view));
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verify_data(test_view, orig_view);
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}
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{
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fill_view(test_view, name);
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fill_view(orig_view, name);
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KE::reverse(exespace(), test_view);
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verify_data(test_view, orig_view);
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}
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{
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fill_view(test_view, name);
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fill_view(orig_view, name);
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KE::reverse("label", exespace(), test_view);
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verify_data(test_view, orig_view);
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}
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Kokkos::fence();
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}
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template <class Tag, class ValueType>
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void run_all_scenarios() {
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const std::map<std::string, std::size_t> scenarios = {
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{"empty", 0}, {"one-element-a", 1}, {"one-element-b", 1},
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{"two-elements-a", 2}, {"two-elements-b", 2}, {"small-a", 9},
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{"small-b", 13}, {"medium", 1103}, {"large", 101513}};
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for (const auto& it : scenarios) {
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run_single_scenario<Tag, ValueType>(it);
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}
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}
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TEST(std_algorithms_modseq_test, reverse) {
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run_all_scenarios<DynamicTag, double>();
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run_all_scenarios<StridedThreeTag, double>();
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run_all_scenarios<DynamicTag, int>();
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run_all_scenarios<StridedThreeTag, int>();
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}
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} // namespace Reverse
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} // namespace stdalgos
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} // namespace Test
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