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//@HEADER
// ************************************************************************
//
// Kokkos v. 4.0
// Copyright (2022) National Technology & Engineering
// Solutions of Sandia, LLC (NTESS).
//
// Under the terms of Contract DE-NA0003525 with NTESS,
// the U.S. Government retains certain rights in this software.
//
// Part of Kokkos, under the Apache License v2.0 with LLVM Exceptions.
// See https://kokkos.org/LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//@HEADER
#include <TestStdAlgorithmsCommon.hpp>
#include <utility>
namespace Test {
namespace stdalgos {
namespace IsSorted {
namespace KE = Kokkos::Experimental;
template <class ViewType>
void fill_view(ViewType dest_view, const std::string& name) {
using value_type = typename ViewType::value_type;
using exe_space = typename ViewType::execution_space;
const std::size_t ext = dest_view.extent(0);
using aux_view_t = Kokkos::View<value_type*, exe_space>;
aux_view_t aux_view("aux_view", ext);
auto v_h = create_mirror_view(Kokkos::HostSpace(), aux_view);
if (name == "empty") {
// no op
}
else if (name == "one-element") {
v_h(0) = static_cast<value_type>(1);
}
else if (name == "two-elements-a") {
v_h(0) = static_cast<value_type>(1);
v_h(1) = static_cast<value_type>(2);
}
else if (name == "two-elements-b") {
v_h(0) = static_cast<value_type>(2);
v_h(1) = static_cast<value_type>(-1);
}
else if (name == "small-a") {
for (std::size_t i = 0; i < ext; ++i) {
v_h(i) = static_cast<value_type>(i);
}
}
else if (name == "small-b") {
for (std::size_t i = 0; i < ext; ++i) {
v_h(i) = static_cast<value_type>(i);
}
v_h(5) = static_cast<value_type>(-15);
}
else if (name == "medium-a") {
for (std::size_t i = 0; i < ext; ++i) {
v_h(i) = static_cast<value_type>(i);
}
}
else if (name == "medium-b") {
for (std::size_t i = 0; i < ext; ++i) {
v_h(i) = static_cast<value_type>(i);
}
v_h(4) = static_cast<value_type>(-1);
}
else if (name == "large-a") {
for (std::size_t i = 0; i < ext; ++i) {
v_h(i) = static_cast<value_type>(-100) + static_cast<value_type>(i);
}
}
else if (name == "large-b") {
for (std::size_t i = 0; i < ext; ++i) {
v_h(i) = static_cast<value_type>(-100) + static_cast<value_type>(i);
}
v_h(156) = static_cast<value_type>(-250);
}
else {
FAIL() << "invalid choice";
}
Kokkos::deep_copy(aux_view, v_h);
CopyFunctor<aux_view_t, ViewType> F1(aux_view, dest_view);
Kokkos::parallel_for("copy", dest_view.extent(0), F1);
}
bool compute_gold(const std::string& name) {
// NOLINTBEGIN(bugprone-branch-clone)
if (name == "empty") {
return true;
} else if (name == "one-element") {
return true;
} else if (name == "two-elements-a") {
return true;
} else if (name == "two-elements-b") {
return false;
} else if (name == "small-a") {
return true;
} else if (name == "small-b") {
return false;
} else if (name == "medium-a") {
return true;
} else if (name == "medium-b") {
return false;
} else if (name == "large-a") {
return true;
} else if (name == "large-b") {
return false;
// NOLINTEND(bugprone-branch-clone)
} else {
Kokkos::abort("invalid choice");
return false; // unreachable
}
}
template <class Tag, class ValueType, class InfoType>
void run_single_scenario(const InfoType& scenario_info) {
const auto name = std::get<0>(scenario_info);
const std::size_t view_ext = std::get<1>(scenario_info);
// std::cout << "is-sorted: " << name << ", " << view_tag_to_string(Tag{})
// << std::endl;
auto view = create_view<ValueType>(Tag{}, view_ext, "is_sorted");
fill_view(view, name);
const auto gold = compute_gold(name);
std::vector<bool> resultsA(4);
resultsA[0] = KE::is_sorted(exespace(), KE::cbegin(view), KE::cend(view));
resultsA[1] =
KE::is_sorted("label", exespace(), KE::cbegin(view), KE::cend(view));
resultsA[2] = KE::is_sorted(exespace(), view);
resultsA[3] = KE::is_sorted("label", exespace(), view);
const auto allA = std::all_of(resultsA.cbegin(), resultsA.cend(),
[=](bool v) { return v == gold; });
EXPECT_TRUE(allA) << name << ", " << view_tag_to_string(Tag{});
#if !defined KOKKOS_ENABLE_OPENMPTARGET
CustomLessThanComparator<ValueType, ValueType> comp;
std::vector<bool> resultsB(4);
resultsB[0] =
KE::is_sorted(exespace(), KE::cbegin(view), KE::cend(view), comp);
resultsB[1] = KE::is_sorted("label", exespace(), KE::cbegin(view),
KE::cend(view), comp);
resultsB[2] = KE::is_sorted(exespace(), view, comp);
resultsB[3] = KE::is_sorted("label", exespace(), view, comp);
const auto allB = std::all_of(resultsB.cbegin(), resultsB.cend(),
[=](bool v) { return v == gold; });
EXPECT_TRUE(allB) << name << ", " << view_tag_to_string(Tag{});
#endif
Kokkos::fence();
}
template <class Tag, class ValueType>
void run_is_sorted_all_scenarios() {
const std::map<std::string, std::size_t> scenarios = {
{"empty", 0}, {"one-element", 1}, {"two-elements-a", 2},
{"two-elements-b", 2}, {"small-a", 9}, {"small-b", 13},
{"medium-a", 1003}, {"medium-b", 1003}, {"large-a", 101513},
{"large-b", 101513}};
for (const auto& it : scenarios) {
run_single_scenario<Tag, ValueType>(it);
}
}
TEST(std_algorithms_sorting_ops_test, is_sorted) {
run_is_sorted_all_scenarios<DynamicTag, double>();
run_is_sorted_all_scenarios<StridedTwoTag, double>();
run_is_sorted_all_scenarios<StridedThreeTag, double>();
}
} // namespace IsSorted
} // namespace stdalgos
} // namespace Test
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