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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// SPDX-FileCopyrightText: Copyright Contributors to the Kokkos project
#include <Kokkos_Macros.hpp>
#ifdef KOKKOS_ENABLE_EXPERIMENTAL_CXX20_MODULES
import kokkos.core;
import kokkos.core_impl;
#else
#include <Kokkos_Core.hpp>
#endif
#include <gtest/gtest.h>
namespace {
using element_t = float;
using mem_t = typename TEST_EXECSPACE::memory_space;
using data_handle_t =
Kokkos::Impl::ReferenceCountedDataHandle<element_t, mem_t>;
using const_data_handle_t =
Kokkos::Impl::ReferenceCountedDataHandle<const element_t, mem_t>;
using data_handle_anonym_t =
Kokkos::Impl::ReferenceCountedDataHandle<element_t, Kokkos::AnonymousSpace>;
using const_data_handle_anonym_t =
Kokkos::Impl::ReferenceCountedDataHandle<const element_t,
Kokkos::AnonymousSpace>;
} // namespace
TEST(TEST_CATEGORY, RefCountedDataHandle_Typedefs) {
static_assert(std::is_same_v<data_handle_t::value_type, element_t>);
static_assert(std::is_same_v<data_handle_t::pointer, element_t*>);
static_assert(std::is_same_v<data_handle_t::reference, element_t&>);
static_assert(std::is_same_v<data_handle_t::memory_space, mem_t>);
}
template <class DataHandleType, class ConstDataHandleType>
void test_ref_counted_data_handle() {
auto shared_alloc =
Kokkos::Impl::make_shared_allocation_record<element_t, mem_t,
TEST_EXECSPACE>(
100, "Test", mem_t(), std::optional<TEST_EXECSPACE>(std::nullopt),
std::bool_constant<true>(), // init
std::bool_constant<false>()); // sequential_host_init
element_t* ptr = static_cast<element_t*>(shared_alloc->data());
const element_t* c_ptr = ptr;
DataHandleType dh(shared_alloc);
ASSERT_EQ(dh.use_count(), 1);
ASSERT_EQ(dh.get_label(), std::string("Test"));
ASSERT_EQ(dh.get(), ptr);
ASSERT_EQ(dh.has_record(), true);
{
element_t* ptr_tmp(dh);
ASSERT_EQ(ptr_tmp, ptr);
static_assert(!std::is_convertible_v<data_handle_t, element_t*>);
}
{
ConstDataHandleType c_dh(dh);
ASSERT_EQ(dh.use_count(), 2);
ASSERT_EQ(c_dh.use_count(), 2);
}
ASSERT_EQ(dh.use_count(), 1);
DataHandleType um_dh(ptr);
ASSERT_EQ(um_dh.get(), ptr);
ASSERT_EQ(um_dh.has_record(), false);
DataHandleType dh_offset(dh, ptr + 5);
ASSERT_EQ(dh_offset.use_count(), 2);
ASSERT_EQ(dh_offset.get(), ptr + 5);
ASSERT_EQ(dh_offset.get_label(), std::string("Test"));
ASSERT_EQ(dh_offset.has_record(), true);
{
element_t* ptr_tmp(dh_offset);
ASSERT_EQ(ptr_tmp, ptr + 5);
}
Kokkos::View<int, TEST_EXECSPACE> errors("Errors");
// clang-format screws the following pieces up for some reason
// Tested with 16 and with 18 to the same effect
// clang-format off
Kokkos::parallel_for(Kokkos::RangePolicy<TEST_EXECSPACE>(0, 1), KOKKOS_LAMBDA(int) {
// default ctor and non-const to const
{
DataHandleType dh2(dh);
if(dh2.get() != ptr) errors() += 1;
ConstDataHandleType c_dh2(dh);
ConstDataHandleType c_dh3(c_dh2);
static_assert(!std::is_constructible_v<data_handle_t, const_data_handle_t>);
}
{
// ctor from pointer
DataHandleType dh2(ptr);
if (dh2.get() != ptr) errors() += 2;
ConstDataHandleType c_dh1(ptr);
if (c_dh1.get() != ptr) errors() += 4;
ConstDataHandleType c_dh2(c_ptr);
if (c_dh2.get() != ptr) errors() += 8;
static_assert(!std::is_constructible_v<data_handle_t, decltype(c_ptr)>);
}
// ctor for subviews
{
DataHandleType dh2(dh, ptr + 5);
if (dh2.get() != ptr + 5) errors() += 16;
}
});
int h_errors = 0;
Kokkos::deep_copy(h_errors, errors);
ASSERT_FALSE(h_errors & 1);
ASSERT_FALSE(h_errors & 2);
ASSERT_FALSE(h_errors & 4);
ASSERT_FALSE(h_errors & 8);
ASSERT_FALSE(h_errors & 16);
}
// clang-format on
TEST(TEST_CATEGORY, RefCountedDataHandle) {
test_ref_counted_data_handle<data_handle_t, const_data_handle_t>();
}
TEST(TEST_CATEGORY, RefCountedDataHandleAnonym) {
test_ref_counted_data_handle<data_handle_anonym_t,
const_data_handle_anonym_t>();
}
template <class T>
KOKKOS_FUNCTION void unused_variable_sink(T) {}
void test_ref_counted_data_handle_conversion() {
auto shared_alloc1 =
Kokkos::Impl::make_shared_allocation_record<element_t, mem_t,
TEST_EXECSPACE>(
100, "Test1", mem_t(), std::optional<TEST_EXECSPACE>(std::nullopt),
std::bool_constant<true>(), // init
std::bool_constant<false>()); // sequential_host_init
element_t* ptr1 = static_cast<element_t*>(shared_alloc1->data());
const element_t* c_ptr1 = ptr1;
unused_variable_sink(c_ptr1);
data_handle_t dh(shared_alloc1);
ASSERT_EQ(dh.use_count(), 1);
ASSERT_EQ(dh.get_label(), std::string("Test1"));
ASSERT_EQ(dh.get(), ptr1);
ASSERT_EQ(dh.has_record(), true);
auto shared_alloc2 =
Kokkos::Impl::make_shared_allocation_record<element_t, mem_t,
TEST_EXECSPACE>(
100, "Test2", mem_t(), std::optional<TEST_EXECSPACE>(std::nullopt),
std::bool_constant<true>(), // init
std::bool_constant<false>()); // sequential_host_init
element_t* ptr2 = static_cast<element_t*>(shared_alloc2->data());
const element_t* c_ptr2 = ptr2;
unused_variable_sink(c_ptr2);
data_handle_anonym_t dha(shared_alloc2);
ASSERT_EQ(dha.use_count(), 1);
ASSERT_EQ(dha.get_label(), std::string("Test2"));
ASSERT_EQ(dha.get(), ptr2);
ASSERT_EQ(dha.has_record(), true);
{
data_handle_anonym_t dha2(dh);
ASSERT_EQ(dha2.use_count(), 2);
ASSERT_EQ(dha2.get_label(), std::string("Test1"));
ASSERT_EQ(dha2.get(), ptr1);
ASSERT_EQ(dha2.has_record(), true);
data_handle_t dh2(dha);
ASSERT_EQ(dh2.use_count(), 2);
ASSERT_EQ(dh2.get_label(), std::string("Test2"));
ASSERT_EQ(dh2.get(), ptr2);
ASSERT_EQ(dh2.has_record(), true);
dha2 = dh2;
ASSERT_EQ(dha2.use_count(), 3);
ASSERT_EQ(dha2.get_label(), std::string("Test2"));
ASSERT_EQ(dha2.get(), ptr2);
ASSERT_EQ(dha2.has_record(), true);
}
ASSERT_EQ(dh.use_count(), 1);
ASSERT_EQ(dh.get_label(), std::string("Test1"));
ASSERT_EQ(dh.get(), ptr1);
ASSERT_EQ(dh.has_record(), true);
ASSERT_EQ(dha.use_count(), 1);
ASSERT_EQ(dha.get_label(), std::string("Test2"));
ASSERT_EQ(dha.get(), ptr2);
ASSERT_EQ(dha.has_record(), true);
}
TEST(TEST_CATEGORY, RefCountedDataHandleConversion) {
test_ref_counted_data_handle_conversion();
}
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