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lammps/lib/kokkos/algorithms/unit_tests/TestStdAlgorithmsConstraints.cpp
2023-06-29 10:42:42 -06:00

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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 <gtest/gtest.h>
#include <Kokkos_Core.hpp>
#include <Kokkos_StdAlgorithms.hpp>
namespace Test {
namespace stdalgos {
TEST(std_algorithms, is_admissible_to_std_algorithms) {
namespace KE = Kokkos::Experimental;
using value_type = double;
static constexpr size_t extent0 = 13;
static constexpr size_t extent1 = 18;
static constexpr size_t extent2 = 18;
//-------------
// 1d views
//-------------
using static_view_1d_t = Kokkos::View<value_type[extent0]>;
static_view_1d_t static_view_1d{"std-algo-test-1d-contiguous-view-static"};
using dyn_view_1d_t = Kokkos::View<value_type*>;
dyn_view_1d_t dynamic_view_1d{"std-algo-test-1d-contiguous-view-dynamic",
extent0};
using strided_view_1d_t = Kokkos::View<value_type*, Kokkos::LayoutStride>;
Kokkos::LayoutStride layout1d{extent0, 2};
strided_view_1d_t strided_view_1d{"std-algo-test-1d-strided-view", layout1d};
ASSERT_EQ(layout1d.dimension[0], 13u);
ASSERT_EQ(layout1d.stride[0], 2u);
// they are admissible
KE::Impl::static_assert_is_admissible_to_kokkos_std_algorithms(
static_view_1d);
KE::Impl::static_assert_is_admissible_to_kokkos_std_algorithms(
dynamic_view_1d);
KE::Impl::static_assert_is_admissible_to_kokkos_std_algorithms(
strided_view_1d);
//-------------
// 2d views
//-------------
using static_view_2d_t = Kokkos::View<value_type[extent0][extent1]>;
using dyn_view_2d_t = Kokkos::View<value_type**>;
using strided_view_2d_t = Kokkos::View<value_type**, Kokkos::LayoutStride>;
// non admissible
EXPECT_FALSE(KE::Impl::is_admissible_to_kokkos_std_algorithms<
static_view_2d_t>::value);
EXPECT_FALSE(
KE::Impl::is_admissible_to_kokkos_std_algorithms<dyn_view_2d_t>::value);
EXPECT_FALSE(KE::Impl::is_admissible_to_kokkos_std_algorithms<
strided_view_2d_t>::value);
//-------------
// 3d views
//-------------
using static_view_3d_t = Kokkos::View<value_type[extent0][extent1][extent2]>;
using dyn_view_3d_t = Kokkos::View<value_type***>;
using strided_view_3d_t = Kokkos::View<value_type***, Kokkos::LayoutStride>;
// non admissible
EXPECT_FALSE(KE::Impl::is_admissible_to_kokkos_std_algorithms<
static_view_3d_t>::value);
EXPECT_FALSE(
KE::Impl::is_admissible_to_kokkos_std_algorithms<dyn_view_3d_t>::value);
EXPECT_FALSE(KE::Impl::is_admissible_to_kokkos_std_algorithms<
strided_view_3d_t>::value);
}
} // namespace stdalgos
} // namespace Test