Update Kokkos library in LAMMPS to v3.6.0
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Stan Gerald Moore
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lib/kokkos/algorithms/unit_tests/TestStdAlgorithmsCommon.hpp
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lib/kokkos/algorithms/unit_tests/TestStdAlgorithmsCommon.hpp
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/*
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//@HEADER
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// ************************************************************************
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//
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// Kokkos v. 3.0
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// Copyright (2020) National Technology & Engineering
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// Solutions of Sandia, LLC (NTESS).
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// 3. Neither the name of the Corporation nor the names of the
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY NTESS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NTESS OR THE
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Questions? Contact Christian R. Trott (crtrott@sandia.gov)
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//
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// ************************************************************************
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//@HEADER
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*/
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#ifndef KOKKOS_ALGORITHMS_UNITTESTS_TEST_STD_ALGOS_COMMON_HPP
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#define KOKKOS_ALGORITHMS_UNITTESTS_TEST_STD_ALGOS_COMMON_HPP
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#include <gtest/gtest.h>
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#include <TestStdAlgorithmsHelperFunctors.hpp>
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#include <std_algorithms/Kokkos_BeginEnd.hpp>
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#include <numeric>
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#include <random>
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namespace Test {
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namespace stdalgos {
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using exespace = Kokkos::DefaultExecutionSpace;
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struct DynamicTag {};
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struct StridedTwoTag {};
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struct StridedThreeTag {};
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const std::map<std::string, std::size_t> default_scenarios = {
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{"empty", 0}, {"one-element", 1}, {"two-elements-a", 2},
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{"two-elements-b", 2}, {"small-a", 9}, {"small-b", 13},
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{"medium-a", 1003}, {"medium-b", 1003}, {"large-a", 101513},
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{"large-b", 101513}};
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// see cpp file for these functions
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std::string view_tag_to_string(DynamicTag);
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std::string view_tag_to_string(StridedTwoTag);
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std::string view_tag_to_string(StridedThreeTag);
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template <class ValueType>
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auto create_view(DynamicTag, std::size_t ext, const std::string label) {
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using view_t = Kokkos::View<ValueType*>;
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view_t view{label + "_" + view_tag_to_string(DynamicTag{}), ext};
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return view;
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}
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template <class ValueType>
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auto create_view(StridedTwoTag, std::size_t ext, const std::string label) {
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using view_t = Kokkos::View<ValueType*, Kokkos::LayoutStride>;
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Kokkos::LayoutStride layout{ext, 2};
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view_t view{label + "_" + view_tag_to_string(DynamicTag{}), layout};
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return view;
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}
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template <class ValueType>
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auto create_view(StridedThreeTag, std::size_t ext, const std::string label) {
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using view_t = Kokkos::View<ValueType*, Kokkos::LayoutStride>;
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Kokkos::LayoutStride layout{ext, 3};
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view_t view{label + "_" + view_tag_to_string(DynamicTag{}), layout};
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return view;
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}
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template <class ViewType>
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auto create_deep_copyable_compatible_view_with_same_extent(ViewType view) {
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const std::size_t ext = view.extent(0);
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using view_value_type = typename ViewType::value_type;
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using view_exespace = typename ViewType::execution_space;
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using view_deep_copyable_t = Kokkos::View<view_value_type*, view_exespace>;
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view_deep_copyable_t view_dc("view_dc", ext);
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return view_dc;
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}
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template <class ViewType>
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auto create_deep_copyable_compatible_clone(ViewType view) {
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auto view_dc = create_deep_copyable_compatible_view_with_same_extent(view);
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using view_dc_t = decltype(view_dc);
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CopyFunctor<ViewType, view_dc_t> F1(view, view_dc);
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Kokkos::parallel_for("copy", view.extent(0), F1);
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return view_dc;
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}
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template <class ViewType>
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auto create_host_space_copy(ViewType view) {
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auto view_dc = create_deep_copyable_compatible_clone(view);
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return create_mirror_view_and_copy(Kokkos::HostSpace(), view_dc);
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}
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// fill the views with sequentially increasing values
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template <class ViewType, class ViewHostType>
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void fill_views_inc(ViewType view, ViewHostType host_view) {
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namespace KE = Kokkos::Experimental;
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Kokkos::parallel_for(view.extent(0), AssignIndexFunctor<ViewType>(view));
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std::iota(KE::begin(host_view), KE::end(host_view), 0);
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// compare_views(expected, view);
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}
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template <class ValueType, class ViewType>
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std::enable_if_t<!std::is_same<typename ViewType::traits::array_layout,
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Kokkos::LayoutStride>::value>
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verify_values(ValueType expected, const ViewType view) {
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static_assert(std::is_same<ValueType, typename ViewType::value_type>::value,
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"Non-matching value types of view and reference value");
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auto view_h = Kokkos::create_mirror_view_and_copy(Kokkos::HostSpace(), view);
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for (std::size_t i = 0; i < view_h.extent(0); i++) {
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EXPECT_EQ(expected, view_h(i));
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}
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}
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template <class ValueType, class ViewType>
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std::enable_if_t<std::is_same<typename ViewType::traits::array_layout,
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Kokkos::LayoutStride>::value>
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verify_values(ValueType expected, const ViewType view) {
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static_assert(std::is_same<ValueType, typename ViewType::value_type>::value,
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"Non-matching value types of view and reference value");
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using non_strided_view_t = Kokkos::View<typename ViewType::value_type*>;
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non_strided_view_t tmpView("tmpView", view.extent(0));
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Kokkos::parallel_for(
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"_std_algo_copy", view.extent(0),
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CopyFunctor<ViewType, non_strided_view_t>(view, tmpView));
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auto view_h =
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Kokkos::create_mirror_view_and_copy(Kokkos::HostSpace(), tmpView);
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for (std::size_t i = 0; i < view_h.extent(0); i++) {
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EXPECT_EQ(expected, view_h(i));
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}
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}
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template <class ViewType1, class ViewType2>
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std::enable_if_t<!std::is_same<typename ViewType2::traits::array_layout,
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Kokkos::LayoutStride>::value>
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compare_views(ViewType1 expected, const ViewType2 actual) {
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static_assert(std::is_same<typename ViewType1::value_type,
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typename ViewType2::value_type>::value,
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"Non-matching value types of expected and actual view");
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auto expected_h =
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Kokkos::create_mirror_view_and_copy(Kokkos::HostSpace(), expected);
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auto actual_h =
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Kokkos::create_mirror_view_and_copy(Kokkos::HostSpace(), actual);
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for (std::size_t i = 0; i < expected_h.extent(0); i++) {
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EXPECT_EQ(expected_h(i), actual_h(i));
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}
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}
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template <class ViewType1, class ViewType2>
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std::enable_if_t<std::is_same<typename ViewType2::traits::array_layout,
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Kokkos::LayoutStride>::value>
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compare_views(ViewType1 expected, const ViewType2 actual) {
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static_assert(std::is_same<typename ViewType1::value_type,
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typename ViewType2::value_type>::value,
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"Non-matching value types of expected and actual view");
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using non_strided_view_t = Kokkos::View<typename ViewType2::value_type*>;
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non_strided_view_t tmp_view("tmp_view", actual.extent(0));
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Kokkos::parallel_for(
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"_std_algo_copy", actual.extent(0),
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CopyFunctor<ViewType2, non_strided_view_t>(actual, tmp_view));
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auto actual_h =
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Kokkos::create_mirror_view_and_copy(Kokkos::HostSpace(), tmp_view);
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auto expected_h =
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Kokkos::create_mirror_view_and_copy(Kokkos::HostSpace(), expected);
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for (std::size_t i = 0; i < expected_h.extent(0); i++) {
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EXPECT_EQ(expected_h(i), actual_h(i));
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}
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}
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template <class ViewType>
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void fill_zero(ViewType a) {
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const auto functor = FillZeroFunctor<ViewType>(a);
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::Kokkos::parallel_for(a.extent(0), std::move(functor));
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}
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template <class ViewType1, class ViewType2>
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void fill_zero(ViewType1 a, ViewType2 b) {
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fill_zero(a);
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fill_zero(b);
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}
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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// helpers for testing small views (extent = 10)
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// prefer `default_scenarios` map for creating new tests
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using value_type = double;
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struct std_algorithms_test : public ::testing::Test {
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static constexpr size_t extent = 10;
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using static_view_t = Kokkos::View<value_type[extent]>;
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static_view_t m_static_view{"std-algo-test-1D-contiguous-view-static"};
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using dyn_view_t = Kokkos::View<value_type*>;
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dyn_view_t m_dynamic_view{"std-algo-test-1D-contiguous-view-dynamic", extent};
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using strided_view_t = Kokkos::View<value_type*, Kokkos::LayoutStride>;
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Kokkos::LayoutStride layout{extent, 2};
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strided_view_t m_strided_view{"std-algo-test-1D-strided-view", layout};
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using view_host_space_t = Kokkos::View<value_type[10], Kokkos::HostSpace>;
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template <class ViewFromType>
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void copyInputViewToFixtureViews(ViewFromType view) {
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CopyFunctor<ViewFromType, static_view_t> F1(view, m_static_view);
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Kokkos::parallel_for("_std_algo_copy1", view.extent(0), F1);
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CopyFunctor<ViewFromType, dyn_view_t> F2(view, m_dynamic_view);
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Kokkos::parallel_for("_std_algo_copy2", view.extent(0), F2);
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CopyFunctor<ViewFromType, strided_view_t> F3(view, m_strided_view);
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Kokkos::parallel_for("_std_algo_copy3", view.extent(0), F3);
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}
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};
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} // namespace stdalgos
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} // namespace Test
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#endif
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