91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
//@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 <gtest/gtest.h>
|
|
|
|
#include <Kokkos_Core.hpp>
|
|
#include <sstream>
|
|
#include <iostream>
|
|
|
|
namespace Test {
|
|
|
|
template <class Space>
|
|
struct NestedView {
|
|
Kokkos::View<int *, Space> member;
|
|
|
|
public:
|
|
KOKKOS_INLINE_FUNCTION
|
|
NestedView() : member() {}
|
|
|
|
KOKKOS_INLINE_FUNCTION
|
|
NestedView &operator=(const Kokkos::View<int *, Space> &lhs) {
|
|
member = lhs;
|
|
if (member.extent(0)) Kokkos::atomic_add(&member(0), 1);
|
|
return *this;
|
|
}
|
|
|
|
KOKKOS_INLINE_FUNCTION
|
|
~NestedView() {
|
|
if (member.extent(0)) {
|
|
Kokkos::atomic_add(&member(0), -1);
|
|
}
|
|
}
|
|
};
|
|
|
|
template <class Space>
|
|
struct NestedViewFunctor {
|
|
Kokkos::View<NestedView<Space> *, Space> nested;
|
|
Kokkos::View<int *, Space> array;
|
|
|
|
NestedViewFunctor(const Kokkos::View<NestedView<Space> *, Space> &arg_nested,
|
|
const Kokkos::View<int *, Space> &arg_array)
|
|
: nested(arg_nested), array(arg_array) {}
|
|
|
|
KOKKOS_INLINE_FUNCTION
|
|
void operator()(int i) const { nested[i] = array; }
|
|
};
|
|
|
|
template <class Space>
|
|
void view_nested_view() {
|
|
Kokkos::View<int *, Space> tracking("tracking", 1);
|
|
|
|
typename Kokkos::View<int *, Space>::HostMirror host_tracking =
|
|
Kokkos::create_mirror(tracking);
|
|
|
|
{
|
|
Kokkos::View<NestedView<Space> *, Space> a("a_nested_view", 2);
|
|
|
|
Kokkos::parallel_for(Kokkos::RangePolicy<Space>(0, 2),
|
|
NestedViewFunctor<Space>(a, tracking));
|
|
Kokkos::deep_copy(host_tracking, tracking);
|
|
ASSERT_EQ(2, host_tracking(0));
|
|
|
|
Kokkos::View<NestedView<Space> *, Space> b("b_nested_view", 2);
|
|
Kokkos::parallel_for(Kokkos::RangePolicy<Space>(0, 2),
|
|
NestedViewFunctor<Space>(b, tracking));
|
|
Kokkos::deep_copy(host_tracking, tracking);
|
|
ASSERT_EQ(4, host_tracking(0));
|
|
}
|
|
|
|
Kokkos::deep_copy(host_tracking, tracking);
|
|
|
|
ASSERT_EQ(0, host_tracking(0));
|
|
}
|
|
|
|
TEST(TEST_CATEGORY, view_nested_view) { view_nested_view<TEST_EXECSPACE>(); }
|
|
|
|
} // namespace Test
|