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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 <Kokkos_Core.hpp>
template <typename TestView, typename MemorySpace>
void check_memory_space(TestView, MemorySpace) {
static_assert(std::is_same_v<typename TestView::memory_space, MemorySpace>);
}
template <class View>
auto host_mirror_test_space(View) {
return std::conditional_t<
Kokkos::SpaceAccessibility<Kokkos::HostSpace,
typename View::memory_space>::accessible,
typename View::memory_space, Kokkos::HostSpace>{};
}
template <typename View>
void test_create_mirror_properties(const View& view) {
using namespace Kokkos;
using DeviceMemorySpace = typename DefaultExecutionSpace::memory_space;
// clang-format off
// create_mirror
check_memory_space(create_mirror(WithoutInitializing, view), host_mirror_test_space(view));
check_memory_space(create_mirror( view), host_mirror_test_space(view));
check_memory_space(create_mirror(WithoutInitializing, DefaultExecutionSpace{}, view), DeviceMemorySpace{});
check_memory_space(create_mirror( DefaultExecutionSpace{}, view), DeviceMemorySpace{});
// create_mirror_view
check_memory_space(create_mirror_view(WithoutInitializing, view), host_mirror_test_space(view));
check_memory_space(create_mirror_view( view), host_mirror_test_space(view));
check_memory_space(create_mirror_view(WithoutInitializing, DefaultExecutionSpace{}, view), DeviceMemorySpace{});
check_memory_space(create_mirror_view( DefaultExecutionSpace{}, view), DeviceMemorySpace{});
// create_mirror view_alloc
check_memory_space(create_mirror(view_alloc(WithoutInitializing), view), host_mirror_test_space(view));
check_memory_space(create_mirror(view_alloc(), view), host_mirror_test_space(view));
check_memory_space(create_mirror(view_alloc(WithoutInitializing, DeviceMemorySpace{}), view), DeviceMemorySpace{});
check_memory_space(create_mirror(view_alloc( DeviceMemorySpace{}), view), DeviceMemorySpace{});
// create_mirror_view view_alloc
check_memory_space(create_mirror_view(view_alloc(WithoutInitializing), view), host_mirror_test_space(view));
check_memory_space(create_mirror_view(view_alloc(), view), host_mirror_test_space(view));
check_memory_space(create_mirror_view(view_alloc(WithoutInitializing, DeviceMemorySpace{}), view), DeviceMemorySpace{});
check_memory_space(create_mirror_view(view_alloc( DeviceMemorySpace{}), view), DeviceMemorySpace{});
// create_mirror view_alloc + execution space
check_memory_space(create_mirror(view_alloc(DefaultHostExecutionSpace{}, WithoutInitializing), view), host_mirror_test_space(view));
check_memory_space(create_mirror(view_alloc(DefaultHostExecutionSpace{}), view), host_mirror_test_space(view));
check_memory_space(create_mirror(view_alloc(DefaultExecutionSpace{}, WithoutInitializing, DeviceMemorySpace{}), view), DeviceMemorySpace{});
check_memory_space(create_mirror(view_alloc(DefaultExecutionSpace{}, DeviceMemorySpace{}), view), DeviceMemorySpace{});
// create_mirror_view view_alloc + execution space
check_memory_space(create_mirror_view(view_alloc(DefaultHostExecutionSpace{}, WithoutInitializing), view), host_mirror_test_space(view));
check_memory_space(create_mirror_view(view_alloc(DefaultHostExecutionSpace{}), view), host_mirror_test_space(view));
check_memory_space(create_mirror_view(view_alloc(DefaultExecutionSpace{}, WithoutInitializing, DeviceMemorySpace{}), view), DeviceMemorySpace{});
check_memory_space(create_mirror_view(view_alloc(DefaultExecutionSpace{}, DeviceMemorySpace{}), view), DeviceMemorySpace{});
// create_mirror_view_and_copy
check_memory_space(create_mirror_view_and_copy(HostSpace{}, view), HostSpace{});
check_memory_space(create_mirror_view_and_copy(DeviceMemorySpace{}, view), DeviceMemorySpace{});
// create_mirror_view_and_copy view_alloc
check_memory_space(create_mirror_view_and_copy(view_alloc(HostSpace{}), view), HostSpace{});
check_memory_space(create_mirror_view_and_copy(view_alloc(DeviceMemorySpace{}), view), DeviceMemorySpace{});
// create_mirror_view_and_copy view_alloc + execution space
check_memory_space(create_mirror_view_and_copy(view_alloc(HostSpace{}, DefaultHostExecutionSpace{}), view), HostSpace{});
check_memory_space(create_mirror_view_and_copy(view_alloc(DeviceMemorySpace{}, DefaultExecutionSpace{}), view), DeviceMemorySpace{});
// clang-format on
}
void test() {
Kokkos::View<int*, Kokkos::DefaultExecutionSpace> device_view("device view",
10);
Kokkos::View<int*, Kokkos::HostSpace> host_view("host view", 10);
test_create_mirror_properties(device_view);
test_create_mirror_properties(host_view);
}
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