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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 ReplaceCopyIf {
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-a") {
v_h(0) = static_cast<value_type>(1);
}
else if (name == "one-element-b") {
v_h(0) = static_cast<value_type>(2);
}
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) = value_type{-5} + static_cast<value_type>(i + 1);
}
v_h(0) = static_cast<value_type>(2);
v_h(3) = static_cast<value_type>(2);
v_h(5) = static_cast<value_type>(2);
}
else if (name == "small-b") {
for (std::size_t i = 0; i < ext; ++i) {
if (i < 4) {
v_h(i) = static_cast<value_type>(-1);
} else {
v_h(i) = static_cast<value_type>(2);
}
}
}
else if (name == "medium" || name == "large") {
for (std::size_t i = 0; i < ext; ++i) {
if (i % 2 == 0) {
v_h(i) = static_cast<value_type>(-1);
} else {
v_h(i) = static_cast<value_type>(2);
}
}
}
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);
}
template <class ViewTypeFrom, class ViewTypeTest, class ValueType>
void verify_data(const std::string& name, ViewTypeFrom view_from,
ViewTypeTest view_test, ValueType new_value) {
//! always careful because views might not be deep copyable
auto view_test_dc = create_deep_copyable_compatible_clone(view_test);
auto view_test_h =
create_mirror_view_and_copy(Kokkos::HostSpace(), view_test_dc);
auto view_from_dc = create_deep_copyable_compatible_clone(view_from);
auto view_from_h =
create_mirror_view_and_copy(Kokkos::HostSpace(), view_from_dc);
// we check that view_from is unchanged from what it was after filling
// while view_test should be changed
if (name == "empty") {
// no op
}
else if (name == "one-element-a") {
ASSERT_EQ(view_from_h(0), ValueType{1});
ASSERT_EQ(view_test_h(0), view_from_h(0));
}
else if (name == "one-element-b") {
ASSERT_EQ(view_from_h(0), ValueType{2});
ASSERT_EQ(view_test_h(0), new_value);
}
else if (name == "two-elements-a") {
ASSERT_EQ(view_from_h(0), ValueType{1});
ASSERT_EQ(view_from_h(1), ValueType{2});
ASSERT_EQ(view_test_h(0), view_from_h(0));
ASSERT_EQ(view_test_h(1), new_value);
}
else if (name == "two-elements-b") {
ASSERT_EQ(view_from_h(0), ValueType{2});
ASSERT_EQ(view_from_h(1), ValueType{-1});
ASSERT_EQ(view_test_h(0), new_value);
ASSERT_EQ(view_test_h(1), view_from_h(1));
}
else if (name == "small-a") {
for (std::size_t i = 0; i < view_test_h.extent(0); ++i) {
if (i == 0 || i == 3 || i == 5 || i == 6) {
ASSERT_EQ(view_from_h(i), ValueType{2});
ASSERT_EQ(view_test_h(i), new_value);
} else {
const auto gold = ValueType{-5} + static_cast<ValueType>(i + 1);
ASSERT_EQ(view_from_h(i), gold);
ASSERT_EQ(view_test_h(i), gold);
}
}
}
else if (name == "small-b") {
for (std::size_t i = 0; i < view_test_h.extent(0); ++i) {
if (i < 4) {
ASSERT_EQ(view_from_h(i), ValueType{-1});
ASSERT_EQ(view_test_h(i), view_from_h(i));
} else {
ASSERT_EQ(view_from_h(i), ValueType{2});
ASSERT_EQ(view_test_h(i), new_value);
}
}
}
else if (name == "medium" || name == "large") {
for (std::size_t i = 0; i < view_test_h.extent(0); ++i) {
if (i % 2 == 0) {
ASSERT_EQ(view_from_h(i), ValueType{-1});
ASSERT_EQ(view_test_h(i), view_from_h(i));
} else {
ASSERT_EQ(view_from_h(i), ValueType{2});
ASSERT_EQ(view_test_h(i), new_value);
}
}
}
else {
FAIL() << "invalid choice";
}
}
std::string value_type_to_string(int) { return "int"; }
std::string value_type_to_string(double) { return "double"; }
template <class ValueType>
struct EqualsTwoFunctor {
KOKKOS_INLINE_FUNCTION
bool operator()(const ValueType val) const { return (val == ValueType(2)); }
};
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 << "replace_copy_if: " << name << ", " <<
// view_tag_to_string(Tag{})
// << ", " << value_type_to_string(ValueType()) << std::endl;
ValueType new_value{43};
auto view_from =
create_view<ValueType>(Tag{}, view_ext, "replace_copy_if_from");
using pred_type = EqualsTwoFunctor<ValueType>;
{
fill_view(view_from, name);
auto view_dest =
create_view<ValueType>(Tag{}, view_ext, "replace_copy_if_dest");
auto rit = KE::replace_copy_if(exespace(), KE::cbegin(view_from),
KE::cend(view_from), KE::begin(view_dest),
pred_type(), new_value);
verify_data(name, view_from, view_dest, new_value);
ASSERT_EQ(rit, (KE::begin(view_dest) + view_ext));
}
{
fill_view(view_from, name);
auto view_dest =
create_view<ValueType>(Tag{}, view_ext, "replace_copy_if_dest");
auto rit = KE::replace_copy_if("label", exespace(), KE::cbegin(view_from),
KE::cend(view_from), KE::begin(view_dest),
pred_type(), new_value);
verify_data(name, view_from, view_dest, new_value);
ASSERT_EQ(rit, (KE::begin(view_dest) + view_ext));
}
{
fill_view(view_from, name);
auto view_dest =
create_view<ValueType>(Tag{}, view_ext, "replace_copy_if_dest");
auto rit = KE::replace_copy_if(exespace(), view_from, view_dest,
pred_type(), new_value);
verify_data(name, view_from, view_dest, new_value);
ASSERT_EQ(rit, (KE::begin(view_dest) + view_ext));
}
{
fill_view(view_from, name);
auto view_dest =
create_view<ValueType>(Tag{}, view_ext, "replace_copy_if_dest");
auto rit = KE::replace_copy_if("label", exespace(), view_from, view_dest,
pred_type(), new_value);
verify_data(name, view_from, view_dest, new_value);
ASSERT_EQ(rit, (KE::begin(view_dest) + view_ext));
}
Kokkos::fence();
}
template <class Tag, class ValueType>
void run_all_scenarios() {
const std::map<std::string, std::size_t> scenarios = {
{"empty", 0}, {"one-element-a", 1}, {"one-element-b", 1},
{"two-elements-a", 2}, {"two-elements-b", 2}, {"small-a", 9},
{"small-b", 13}, {"medium", 1103}, {"large", 101513}};
for (const auto& it : scenarios) {
run_single_scenario<Tag, ValueType>(it);
}
}
TEST(std_algorithms_replace_ops_test, replace_copy_if) {
run_all_scenarios<DynamicTag, int>();
run_all_scenarios<StridedThreeTag, int>();
run_all_scenarios<DynamicTag, double>();
run_all_scenarios<StridedThreeTag, double>();
}
} // namespace ReplaceCopyIf
} // namespace stdalgos
} // namespace Test
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