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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// SPDX-FileCopyrightText: Copyright Contributors to the Kokkos project
#include <gtest/gtest.h>
#include <Kokkos_Macros.hpp>
#ifdef KOKKOS_ENABLE_EXPERIMENTAL_CXX20_MODULES
import kokkos.core;
import kokkos.core_impl;
#else
#include <Kokkos_Core.hpp>
#endif
#include <type_traits>
using ExecutionSpace = TEST_EXECSPACE;
namespace {
template <class ExecutionSpace, class Extents>
auto make_spanning_mdrange_policy_from_extents_impl(const Extents &extents,
std::index_sequence<0>) {
return Kokkos::RangePolicy<ExecutionSpace>{0, extents.extent(0)};
}
template <class ExecutionSpace, class Extents, std::size_t... Indices>
auto make_spanning_mdrange_policy_from_extents_impl(
const Extents &extents, std::index_sequence<Indices...>) {
using index_type = typename Extents::index_type;
constexpr auto rank = Extents::rank();
return Kokkos::MDRangePolicy<ExecutionSpace, Kokkos::Rank<rank>>{
{(static_cast<index_type>(Indices * 0))...},
{extents.extent(Indices)...}};
}
template <class ExecutionSpace, class Extents>
auto make_spanning_mdrange_policy_from_extents(const Extents &extents) {
return make_spanning_mdrange_policy_from_extents_impl<ExecutionSpace>(
extents, std::make_index_sequence<Extents::rank()>{});
}
template <class T, class ExtentsType>
void test_default_constructor() {
using extents_type = ExtentsType;
using layout_type = Kokkos::Experimental::layout_right_padded<>;
using accessor_type = Kokkos::Impl::CheckedReferenceCountedAccessor<
T, typename ExecutionSpace::memory_space>;
using view_type =
Kokkos::Impl::BV::BasicView<T, extents_type, layout_type, accessor_type>;
view_type view;
EXPECT_FALSE(view.data_handle().has_record());
EXPECT_EQ(view.data_handle().get(), nullptr);
EXPECT_EQ(view.extents(), extents_type{});
EXPECT_EQ(view.data_handle().use_count(), 0);
EXPECT_TRUE(view.is_exhaustive());
EXPECT_EQ(view.data_handle().get_label(), "");
EXPECT_TRUE(view.empty());
EXPECT_EQ(view.size(), 0u);
}
TEST(TEST_CATEGORY, basic_view_default_ctor) {
test_default_constructor<double, Kokkos::extents<std::size_t, 1>>();
}
template <class T, class ExtentsType>
void test_extents_constructor(const ExtentsType &extents) {
using extents_type = ExtentsType;
using layout_type = Kokkos::Experimental::layout_right_padded<>;
using accessor_type = Kokkos::Impl::CheckedReferenceCountedAccessor<
T, typename ExecutionSpace::memory_space>;
using view_type =
Kokkos::Impl::BV::BasicView<T, extents_type, layout_type, accessor_type>;
view_type view("test_view", extents);
EXPECT_TRUE(view.data_handle().has_record());
EXPECT_NE(view.data_handle().get(), nullptr);
EXPECT_EQ(view.extents(), extents);
EXPECT_EQ(view.data_handle().use_count(), 1);
EXPECT_TRUE(view.is_exhaustive());
EXPECT_EQ(view.data_handle().get_label(), "test_view");
size_t expected_size = 1;
// Avoid pointless comparison of unsigned warning for rank==0
for (int r = 0; r < static_cast<int>(view_type::rank()); r++)
expected_size *= extents.extent(r);
EXPECT_EQ(view.size(), expected_size);
EXPECT_EQ(view.empty(), expected_size == 0u);
}
TEST(TEST_CATEGORY, basic_view_extents_ctor) {
test_extents_constructor<double>(
Kokkos::extents<std::size_t, 2, Kokkos::dynamic_extent, 4>(8));
test_extents_constructor<double>(
Kokkos::extents<std::size_t, 2, Kokkos::dynamic_extent, 4>(0));
test_extents_constructor<std::size_t>(Kokkos::extents<std::size_t, 2, 4>());
test_extents_constructor<int>(Kokkos::extents<std::size_t>());
}
template <class T, template <std::size_t> class LayoutType, class ExtentsType>
void test_mapping_constructor(const ExtentsType &extents, std::size_t padding) {
using extents_type = ExtentsType;
using layout_type = LayoutType<Kokkos::dynamic_extent>;
using mapping_type = typename layout_type::template mapping<ExtentsType>;
using accessor_type = Kokkos::Impl::CheckedReferenceCountedAccessor<
T, typename ExecutionSpace::memory_space>;
using view_type =
Kokkos::Impl::BV::BasicView<T, extents_type, layout_type, accessor_type>;
static_assert(std::is_same_v<typename view_type::mapping_type, mapping_type>);
auto mapping = mapping_type(extents, padding);
view_type view("test_view", mapping);
EXPECT_TRUE(view.data_handle().has_record());
EXPECT_NE(view.data_handle().get(), nullptr);
EXPECT_EQ(view.data_handle().use_count(), 1);
EXPECT_EQ(view.data_handle().get_label(), "test_view");
EXPECT_EQ(view.extents(), mapping.extents());
EXPECT_EQ(view.is_exhaustive(), mapping.is_exhaustive());
size_t expected_size = 1;
// Avoid pointless comparison of unsigned warning for rank==0
for (int r = 0; r < static_cast<int>(view_type::rank()); r++)
expected_size *= view.extent(r);
EXPECT_EQ(view.size(), expected_size);
EXPECT_EQ(view.empty(), expected_size == 0u);
}
TEST(TEST_CATEGORY, basic_view_mapping_ctor_right) {
test_mapping_constructor<double, Kokkos::Experimental::layout_left_padded>(
Kokkos::extents<std::size_t, 2, Kokkos::dynamic_extent>(2, 5), 8);
test_mapping_constructor<std::size_t,
Kokkos::Experimental::layout_left_padded>(
Kokkos::extents<std::size_t>(), 4);
test_mapping_constructor<double, Kokkos::Experimental::layout_left_padded>(
Kokkos::extents<std::size_t, 2, 3>(), 9);
test_mapping_constructor<int, Kokkos::Experimental::layout_right_padded>(
Kokkos::extents<std::size_t, 2, Kokkos::dynamic_extent>(2, 5), 8);
test_mapping_constructor<double, Kokkos::Experimental::layout_right_padded>(
Kokkos::extents<std::size_t>(), 4);
test_mapping_constructor<unsigned, Kokkos::Experimental::layout_right_padded>(
Kokkos::extents<std::size_t, 2, 3>(), 9);
}
template <class ViewType>
struct MDRangeTestFunctor {
ViewType view;
template <class... Idxs>
KOKKOS_FUNCTION void operator()(Idxs... idxs) const {
view(idxs...) = (idxs + ...);
}
};
template <class T, class LayoutType, class ExtentsType>
void test_access_with_extents(const ExtentsType &extents) {
using extents_type = ExtentsType;
using layout_type = Kokkos::Experimental::layout_right_padded<>;
using accessor_type = Kokkos::Impl::CheckedReferenceCountedAccessor<
T, typename ExecutionSpace::memory_space>;
using view_type =
Kokkos::Impl::BV::BasicView<T, extents_type, layout_type, accessor_type>;
auto view = view_type("test_view", extents);
EXPECT_TRUE(view.data_handle().has_record());
EXPECT_NE(view.data_handle().get(), nullptr);
auto mdrange_policy =
make_spanning_mdrange_policy_from_extents<ExecutionSpace>(extents);
Kokkos::parallel_for(mdrange_policy, MDRangeTestFunctor<view_type>{view});
}
template <class T, class LayoutType>
void test_access() {
test_access_with_extents<T, LayoutType>(Kokkos::extents<std::size_t, 5>());
test_access_with_extents<T, LayoutType>(
Kokkos::extents<std::size_t, 5, 10>());
test_access_with_extents<T, LayoutType>(
Kokkos::extents<std::size_t, 5, 2, 2, 2, 2, 2>());
}
TEST(TEST_CATEGORY, basic_view_access) {
test_access<double, Kokkos::Experimental::layout_left_padded<
Kokkos::dynamic_extent>>();
test_access<std::size_t, Kokkos::Experimental::layout_right_padded<
Kokkos::dynamic_extent>>();
}
#if 0 // TODO: this test should be active after View is put on top of BasicView
template <class T, template <std::size_t> class LayoutType, class SrcViewType,
class ExtentsType>
void test_construct_from_view(const ExtentsType &extents,
std::size_t padding) {
using extents_type = ExtentsType;
using layout_type = LayoutType<Kokkos::dynamic_extent>;
using mapping_type = typename layout_type::template mapping<ExtentsType>;
using accessor_type = Kokkos::Impl::CheckedReferenceCountedAccessor<
T, typename ExecutionSpace::memory_space>;
using basic_view_type =
Kokkos::Impl::BV::BasicView<T, extents_type, layout_type, accessor_type>;
using view_type = SrcViewType;
static_assert(std::is_constructible_v<basic_view_type, SrcViewType>);
}
#endif
#if 0 // TODO: this test should be active after View is put on top of BasicView
TEST(TEST_CATEGORY, basic_view_view_ctor) {
test_construct_from_view<double,
Kokkos::Experimental::layout_left_padded,
Kokkos::View<double[3], Kokkos::LayoutLeft, ExecutionSpace>>(
Kokkos::extents<std::size_t, 3>(), 0);
test_construct_from_view<size_t,
Kokkos::Experimental::layout_left_padded,
Kokkos::View<double[3], Kokkos::LayoutLeft, ExecutionSpace>>(
Kokkos::extents<std::size_t, Kokkos::dynamic_extent>(3), 0);
}
#endif
template <class T>
void test_atomic_accessor() {
using extents_type = Kokkos::extents<int, 10, 12, 30>;
using layout_type = Kokkos::Experimental::layout_right_padded<>;
using accessor_type =
Kokkos::Impl::CheckedReferenceCountedRelaxedAtomicAccessor<
T, typename ExecutionSpace::memory_space>;
using view_type =
Kokkos::Impl::BV::BasicView<T, extents_type, layout_type, accessor_type>;
using um_accessor_type = Kokkos::Impl::CheckedRelaxedAtomicAccessor<
T, typename ExecutionSpace::memory_space>;
using um_view_type = Kokkos::Impl::BV::BasicView<T, extents_type, layout_type,
um_accessor_type>;
extents_type extents{};
auto view = view_type("test_view", extents);
um_view_type um_view(view);
EXPECT_TRUE(view.data_handle().has_record());
EXPECT_NE(view.data_handle().get(), nullptr);
auto mdrange_policy =
make_spanning_mdrange_policy_from_extents<ExecutionSpace>(extents);
Kokkos::parallel_for(mdrange_policy, MDRangeTestFunctor<view_type>{view});
Kokkos::parallel_for(mdrange_policy,
MDRangeTestFunctor<um_view_type>{um_view});
}
TEST(TEST_CATEGORY, basic_view_atomic_accessor) {
test_atomic_accessor<int>();
test_atomic_accessor<double>();
// FIXME OPENACC atomics
#ifndef KOKKOS_ENABLE_OPENACC
test_atomic_accessor<Kokkos::complex<double>>();
#endif
}
} // namespace
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