145 lines
4.7 KiB
C++
145 lines
4.7 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 TransformUnaryOp {
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namespace KE = Kokkos::Experimental;
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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 ViewType>
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void fill_view(ViewType dest_view) {
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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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for (std::size_t i = 0; i < ext; ++i) {
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v_h(i) = static_cast<value_type>(i);
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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 ViewTypeFrom, class ViewTypeTest>
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void verify_data(ViewTypeFrom view_from, ViewTypeTest view_test) {
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using value_type = typename ViewTypeFrom::value_type;
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//! always careful because views might not be deep copyable
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auto view_test_dc = create_deep_copyable_compatible_clone(view_test);
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auto view_test_h =
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create_mirror_view_and_copy(Kokkos::HostSpace(), view_test_dc);
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auto view_from_dc = create_deep_copyable_compatible_clone(view_from);
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auto view_from_h =
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create_mirror_view_and_copy(Kokkos::HostSpace(), view_from_dc);
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for (std::size_t i = 0; i < view_test_h.extent(0); ++i) {
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ASSERT_EQ(view_test_h(i), view_from_h(i) + value_type(1));
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}
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}
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template <class ValueType>
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struct TransformFunctor {
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KOKKOS_INLINE_FUNCTION
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ValueType operator()(const ValueType& val) const {
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return val + ValueType(1);
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}
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};
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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 << "transform_unary_op: " << name << ", "
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// << view_tag_to_string(Tag{}) << ", "
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// << value_type_to_string(ValueType()) << std::endl;
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auto view_from =
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create_view<ValueType>(Tag{}, view_ext, "transform_uop_from");
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fill_view(view_from);
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TransformFunctor<ValueType> unOp;
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{
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auto view_dest =
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create_view<ValueType>(Tag{}, view_ext, "transform_uop_dest");
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auto r1 = KE::transform(exespace(), KE::begin(view_from),
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KE::end(view_from), KE::begin(view_dest), unOp);
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verify_data(view_from, view_dest);
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ASSERT_EQ(r1, KE::end(view_dest));
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}
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{
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auto view_dest =
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create_view<ValueType>(Tag{}, view_ext, "transform_uop_dest");
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auto r1 = KE::transform("label", exespace(), KE::begin(view_from),
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KE::end(view_from), KE::begin(view_dest), unOp);
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verify_data(view_from, view_dest);
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ASSERT_EQ(r1, KE::end(view_dest));
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}
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{
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auto view_dest =
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create_view<ValueType>(Tag{}, view_ext, "transform_uop_dest");
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auto r1 = KE::transform(exespace(), view_from, view_dest, unOp);
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verify_data(view_from, view_dest);
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ASSERT_EQ(r1, KE::end(view_dest));
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}
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{
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auto view_dest =
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create_view<ValueType>(Tag{}, view_ext, "transform_uop_dest");
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auto r1 = KE::transform("label", exespace(), view_from, view_dest, unOp);
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verify_data(view_from, view_dest);
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ASSERT_EQ(r1, KE::end(view_dest));
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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_transform_ops_test, transform_unary_op) {
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run_all_scenarios<DynamicTag, int>();
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run_all_scenarios<StridedThreeTag, int>();
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run_all_scenarios<DynamicTag, double>();
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run_all_scenarios<StridedThreeTag, double>();
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}
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} // namespace TransformUnaryOp
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} // namespace stdalgos
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} // namespace Test
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