650 lines
20 KiB
C++
650 lines
20 KiB
C++
//@HEADER
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// ************************************************************************
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//
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// Kokkos v. 4.0
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// Copyright (2022) 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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// Part of Kokkos, under the Apache License v2.0 with LLVM Exceptions.
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// See https://kokkos.org/LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//@HEADER
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#ifndef KOKKOS_TEST_DUALVIEW_HPP
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#define KOKKOS_TEST_DUALVIEW_HPP
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#include <gtest/gtest.h>
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#include <iostream>
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#include <cstdlib>
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#include <cstdio>
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#include <Kokkos_Timer.hpp>
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#include <Kokkos_DualView.hpp>
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namespace Test {
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namespace Impl {
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template <typename Scalar, class Device>
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struct test_dualview_alloc {
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using scalar_type = Scalar;
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using execution_space = Device;
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template <typename ViewType>
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bool run_me(unsigned int n, unsigned int m) {
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if (n < 10) n = 10;
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if (m < 3) m = 3;
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{
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ViewType b1;
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if (b1.is_allocated() == true) return false;
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b1 = ViewType("B1", n, m);
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ViewType b2(b1);
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ViewType b3("B3", n, m);
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if (b1.is_allocated() == false) return false;
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if (b2.is_allocated() == false) return false;
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if (b3.is_allocated() == false) return false;
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}
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return true;
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}
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bool result = false;
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test_dualview_alloc(unsigned int size) {
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result =
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run_me<Kokkos::DualView<Scalar**, Kokkos::LayoutLeft, Device>>(size, 3);
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}
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};
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template <typename Scalar, class Device>
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struct test_dualview_copy_construction_and_assignment {
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using scalar_type = Scalar;
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using execution_space = Device;
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void operator()() {
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constexpr unsigned int n = 10;
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constexpr unsigned int m = 5;
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using SrcViewType = Kokkos::DualView<Scalar**, Kokkos::LayoutLeft, Device>;
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using DstViewType =
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Kokkos::DualView<const Scalar * [m], Kokkos::LayoutLeft, Device>;
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SrcViewType a("A", n, m);
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// Copy construction
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DstViewType b(a);
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// Copy assignment
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DstViewType c = a;
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// Check equality (shallow) of the host and device views
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ASSERT_EQ(a.view_host(), b.view_host());
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ASSERT_EQ(a.view_device(), b.view_device());
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ASSERT_EQ(a.view_host(), c.view_host());
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ASSERT_EQ(a.view_device(), c.view_device());
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// We can't test shallow equality of modified_flags because it's protected.
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// So we test it indirectly through sync state behavior.
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if (!std::decay_t<SrcViewType>::impl_dualview_is_single_device::value) {
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a.clear_sync_state();
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a.modify_host();
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ASSERT_TRUE(a.need_sync_device());
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ASSERT_TRUE(b.need_sync_device());
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ASSERT_TRUE(c.need_sync_device());
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a.clear_sync_state();
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}
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}
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};
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template <typename Scalar, class Device>
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struct test_dualview_combinations {
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using self_type = test_dualview_combinations<Scalar, Device>;
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using scalar_type = Scalar;
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using execution_space = Device;
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Scalar reference;
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Scalar result;
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template <typename ViewType>
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Scalar run_me(unsigned int n, unsigned int m, bool with_init) {
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if (n < 10) n = 10;
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if (m < 3) m = 3;
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ViewType a;
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if (with_init) {
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a = ViewType("A", n, m);
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} else {
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a = ViewType(Kokkos::view_alloc(Kokkos::WithoutInitializing, "A"), n, m);
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}
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Kokkos::deep_copy(a.d_view, 1);
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a.template modify<typename ViewType::execution_space>();
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a.template sync<typename ViewType::host_mirror_space>();
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a.template sync<typename ViewType::host_mirror_space>(
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Kokkos::DefaultExecutionSpace{});
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a.h_view(5, 1) = 3;
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a.h_view(6, 1) = 4;
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a.h_view(7, 2) = 5;
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a.template modify<typename ViewType::host_mirror_space>();
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ViewType b = Kokkos::subview(a, std::pair<unsigned int, unsigned int>(6, 9),
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std::pair<unsigned int, unsigned int>(0, 1));
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a.template sync<typename ViewType::execution_space>();
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a.template sync<typename ViewType::execution_space>(
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Kokkos::DefaultExecutionSpace{});
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b.template modify<typename ViewType::execution_space>();
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Kokkos::deep_copy(b.d_view, 2);
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a.template sync<typename ViewType::host_mirror_space>();
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a.template sync<typename ViewType::host_mirror_space>(
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Kokkos::DefaultExecutionSpace{});
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Scalar count = 0;
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for (unsigned int i = 0; i < a.d_view.extent(0); i++)
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for (unsigned int j = 0; j < a.d_view.extent(1); j++)
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count += a.h_view(i, j);
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return count - a.d_view.extent(0) * a.d_view.extent(1) - 2 - 4 - 3 * 2;
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}
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test_dualview_combinations(unsigned int size, bool with_init) {
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result = run_me<Kokkos::DualView<Scalar**, Kokkos::LayoutLeft, Device>>(
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size, 3, with_init);
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}
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};
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template <typename Scalar, class ViewType>
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struct SumViewEntriesFunctor {
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using value_type = Scalar;
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ViewType fv;
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SumViewEntriesFunctor(const ViewType& fv_) : fv(fv_) {}
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KOKKOS_INLINE_FUNCTION
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void operator()(const int i, value_type& total) const {
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for (size_t j = 0; j < fv.extent(1); ++j) {
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total += fv(i, j);
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}
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}
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};
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template <typename Scalar, class Device>
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struct test_dual_view_deep_copy {
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using scalar_type = Scalar;
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using execution_space = Device;
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template <typename ViewType>
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void run_me(int n, const int m, const bool use_templ_sync) {
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ViewType a, b;
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if (n >= 0) {
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a = ViewType("A", n, m);
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b = ViewType("B", n, m);
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} else {
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n = 0;
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}
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const scalar_type sum_total = scalar_type(n * m);
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Kokkos::deep_copy(a.d_view, 1);
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if (use_templ_sync) {
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a.template modify<typename ViewType::execution_space>();
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a.template sync<typename ViewType::host_mirror_space>();
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} else {
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a.modify_device();
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a.sync_host();
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a.sync_host(Kokkos::DefaultExecutionSpace{});
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}
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// Check device view is initialized as expected
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scalar_type a_d_sum = 0;
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// Execute on the execution_space associated with t_dev's memory space
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using t_dev_exec_space =
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typename ViewType::t_dev::memory_space::execution_space;
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Kokkos::parallel_reduce(
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Kokkos::RangePolicy<t_dev_exec_space>(0, n),
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SumViewEntriesFunctor<scalar_type, typename ViewType::t_dev>(a.d_view),
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a_d_sum);
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ASSERT_EQ(a_d_sum, sum_total);
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// Check host view is synced as expected
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scalar_type a_h_sum = 0;
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for (size_t i = 0; i < a.h_view.extent(0); ++i)
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for (size_t j = 0; j < a.h_view.extent(1); ++j) {
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a_h_sum += a.h_view(i, j);
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}
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ASSERT_EQ(a_h_sum, sum_total);
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// Test deep_copy
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Kokkos::deep_copy(b, a);
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if (use_templ_sync) {
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b.template sync<typename ViewType::host_mirror_space>();
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} else {
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b.sync_host();
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b.sync_host(Kokkos::DefaultExecutionSpace{});
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}
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// Perform same checks on b as done on a
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// Check device view is initialized as expected
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scalar_type b_d_sum = 0;
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// Execute on the execution_space associated with t_dev's memory space
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Kokkos::parallel_reduce(
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Kokkos::RangePolicy<t_dev_exec_space>(0, n),
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SumViewEntriesFunctor<scalar_type, typename ViewType::t_dev>(b.d_view),
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b_d_sum);
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ASSERT_EQ(b_d_sum, sum_total);
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// Check host view is synced as expected
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scalar_type b_h_sum = 0;
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for (size_t i = 0; i < b.h_view.extent(0); ++i)
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for (size_t j = 0; j < b.h_view.extent(1); ++j) {
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b_h_sum += b.h_view(i, j);
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}
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ASSERT_EQ(b_h_sum, sum_total);
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} // end run_me
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test_dual_view_deep_copy() {
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run_me<Kokkos::DualView<Scalar**, Kokkos::LayoutLeft, Device>>(10, 5, true);
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run_me<Kokkos::DualView<Scalar**, Kokkos::LayoutLeft, Device>>(10, 5,
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false);
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// Test zero length but allocated (a.d_view.data!=nullptr but
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// a.d_view.span()==0)
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run_me<Kokkos::DualView<Scalar**, Kokkos::LayoutLeft, Device>>(0, 5, true);
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run_me<Kokkos::DualView<Scalar**, Kokkos::LayoutLeft, Device>>(0, 5, false);
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// Test default constructed view
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run_me<Kokkos::DualView<Scalar**, Kokkos::LayoutLeft, Device>>(-1, 5, true);
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run_me<Kokkos::DualView<Scalar**, Kokkos::LayoutLeft, Device>>(-1, 5,
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false);
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}
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};
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template <typename Scalar, class Device, bool Initialize>
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struct test_dualview_resize {
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using scalar_type = Scalar;
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using execution_space = Device;
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template <typename ViewType>
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void run_me() {
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const unsigned int n = 10;
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const unsigned int m = 5;
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const unsigned int factor = 2;
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ViewType a;
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if constexpr (Initialize)
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a = ViewType("A", n, m);
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else
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a = ViewType(Kokkos::view_alloc(Kokkos::WithoutInitializing, "A"), n, m);
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Kokkos::deep_copy(a.d_view, 1);
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/* Covers case "Resize on Device" */
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a.modify_device();
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if constexpr (Initialize)
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Kokkos::resize(a, factor * n, factor * m);
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else
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Kokkos::resize(Kokkos::WithoutInitializing, a, factor * n, factor * m);
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ASSERT_EQ(a.extent(0), n * factor);
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ASSERT_EQ(a.extent(1), m * factor);
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Kokkos::deep_copy(a.d_view, 1);
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a.sync_host();
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// Check device view is initialized as expected
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// Execute on the execution_space associated with t_dev's memory space
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using t_dev_exec_space =
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typename ViewType::t_dev::memory_space::execution_space;
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Kokkos::View<int, typename ViewType::t_dev::memory_space> errors_d(
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"errors");
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Kokkos::parallel_for(
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Kokkos::MDRangePolicy<t_dev_exec_space, Kokkos::Rank<2>>(
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{0, 0}, {a.d_view.extent(0), a.d_view.extent(1)}),
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KOKKOS_LAMBDA(int i, int j) {
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if (a.d_view(i, j) != 1) Kokkos::atomic_inc(errors_d.data());
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});
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int errors_d_scalar;
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Kokkos::deep_copy(errors_d_scalar, errors_d);
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// Check host view is synced as expected
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int errors_h_scalar = 0;
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for (size_t i = 0; i < a.h_view.extent(0); ++i)
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for (size_t j = 0; j < a.h_view.extent(1); ++j) {
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if (a.h_view(i, j) != 1) ++errors_h_scalar;
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}
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// Check
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ASSERT_EQ(errors_d_scalar, 0);
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ASSERT_EQ(errors_h_scalar, 0);
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/* Covers case "Resize on Host" */
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a.modify_host();
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if constexpr (Initialize)
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Kokkos::resize(a, n / factor, m / factor);
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else
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Kokkos::resize(Kokkos::WithoutInitializing, a, n / factor, m / factor);
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ASSERT_EQ(a.extent(0), n / factor);
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ASSERT_EQ(a.extent(1), m / factor);
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a.sync_device();
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a.sync_device(Kokkos::DefaultExecutionSpace{});
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// Check device view is initialized as expected
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Kokkos::deep_copy(errors_d, 0);
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// Execute on the execution_space associated with t_dev's memory space
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using t_dev_exec_space =
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typename ViewType::t_dev::memory_space::execution_space;
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Kokkos::parallel_for(
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Kokkos::MDRangePolicy<t_dev_exec_space, Kokkos::Rank<2>>(
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{0, 0}, {a.d_view.extent(0), a.d_view.extent(1)}),
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KOKKOS_LAMBDA(int i, int j) {
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if (a.d_view(i, j) != 1) Kokkos::atomic_inc(errors_d.data());
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});
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Kokkos::deep_copy(errors_d_scalar, errors_d);
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// Check host view is synced as expected
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errors_h_scalar = 0;
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for (size_t i = 0; i < a.h_view.extent(0); ++i)
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for (size_t j = 0; j < a.h_view.extent(1); ++j) {
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if (a.h_view(i, j) != 1) ++errors_h_scalar;
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}
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// Check
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ASSERT_EQ(errors_d_scalar, 0);
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ASSERT_EQ(errors_h_scalar, 0);
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} // end run_me
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test_dualview_resize() {
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run_me<Kokkos::DualView<Scalar**, Kokkos::LayoutLeft, Device>>();
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}
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};
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template <typename Scalar, class Device, bool Initialize>
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struct test_dualview_realloc {
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using scalar_type = Scalar;
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using execution_space = Device;
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template <typename ViewType>
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void run_me() {
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const unsigned int n = 10;
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const unsigned int m = 5;
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ViewType a;
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if constexpr (Initialize) {
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a = ViewType("A", n, m);
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Kokkos::realloc(a, n, m);
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} else {
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a = ViewType(Kokkos::view_alloc(Kokkos::WithoutInitializing, "A"), n, m);
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Kokkos::realloc(Kokkos::WithoutInitializing, a, n, m);
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}
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ASSERT_EQ(a.extent(0), n);
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ASSERT_EQ(a.extent(1), m);
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Kokkos::deep_copy(a.d_view, 1);
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a.modify_device();
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a.sync_host();
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// Check device view is initialized as expected
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// Execute on the execution_space associated with t_dev's memory space
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using t_dev_exec_space =
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typename ViewType::t_dev::memory_space::execution_space;
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Kokkos::View<int, typename ViewType::t_dev::memory_space> errors_d(
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"errors");
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Kokkos::parallel_for(
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Kokkos::MDRangePolicy<t_dev_exec_space, Kokkos::Rank<2>>(
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{0, 0}, {a.d_view.extent(0), a.d_view.extent(1)}),
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KOKKOS_LAMBDA(int i, int j) {
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if (a.d_view(i, j) != 1) Kokkos::atomic_inc(errors_d.data());
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});
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int errors_d_scalar;
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Kokkos::deep_copy(errors_d_scalar, errors_d);
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// Check host view is synced as expected
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int errors_h_scalar = 0;
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for (size_t i = 0; i < a.h_view.extent(0); ++i)
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for (size_t j = 0; j < a.h_view.extent(1); ++j) {
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if (a.h_view(i, j) != 1) ++errors_h_scalar;
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}
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// Check
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ASSERT_EQ(errors_d_scalar, 0);
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ASSERT_EQ(errors_h_scalar, 0);
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} // end run_me
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test_dualview_realloc() {
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run_me<Kokkos::DualView<Scalar**, Kokkos::LayoutLeft, Device>>();
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}
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};
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} // namespace Impl
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template <typename Scalar, typename Device>
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void test_dualview_combinations(unsigned int size, bool with_init) {
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Impl::test_dualview_combinations<Scalar, Device> test(size, with_init);
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ASSERT_EQ(test.result, 0);
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}
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template <typename Scalar, typename Device>
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void test_dualview_alloc(unsigned int size) {
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Impl::test_dualview_alloc<Scalar, Device> test(size);
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ASSERT_TRUE(test.result);
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}
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template <typename Scalar, typename Device>
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void test_dualview_copy_construction_and_assignment() {
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Impl::test_dualview_copy_construction_and_assignment<Scalar, Device>()();
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}
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template <typename Scalar, typename Device>
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void test_dualview_deep_copy() {
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Impl::test_dual_view_deep_copy<Scalar, Device>();
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}
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template <typename Scalar, typename Device>
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void test_dualview_realloc() {
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Impl::test_dualview_realloc<Scalar, Device, false>();
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Impl::test_dualview_realloc<Scalar, Device, true>();
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}
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template <typename Scalar, typename Device>
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void test_dualview_resize() {
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Impl::test_dualview_resize<Scalar, Device, false>();
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Impl::test_dualview_resize<Scalar, Device, true>();
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}
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TEST(TEST_CATEGORY, dualview_combination) {
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test_dualview_combinations<int, TEST_EXECSPACE>(10, true);
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}
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TEST(TEST_CATEGORY, dualview_alloc) {
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test_dualview_alloc<int, TEST_EXECSPACE>(10);
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}
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TEST(TEST_CATEGORY, test_dualview_copy_construction_and_assignment) {
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test_dualview_copy_construction_and_assignment<int, TEST_EXECSPACE>();
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}
|
|
|
|
TEST(TEST_CATEGORY, dualview_combinations_without_init) {
|
|
test_dualview_combinations<int, TEST_EXECSPACE>(10, false);
|
|
}
|
|
|
|
TEST(TEST_CATEGORY, dualview_deep_copy) {
|
|
test_dualview_deep_copy<int, TEST_EXECSPACE>();
|
|
test_dualview_deep_copy<double, TEST_EXECSPACE>();
|
|
}
|
|
|
|
struct NoDefaultConstructor {
|
|
NoDefaultConstructor(int i_) : i(i_) {}
|
|
KOKKOS_FUNCTION operator int() const { return i; }
|
|
|
|
int i;
|
|
};
|
|
|
|
TEST(TEST_CATEGORY, dualview_realloc) {
|
|
test_dualview_realloc<int, TEST_EXECSPACE>();
|
|
Impl::test_dualview_realloc<NoDefaultConstructor, TEST_EXECSPACE,
|
|
/* Initialize */ false>();
|
|
}
|
|
|
|
TEST(TEST_CATEGORY, dualview_resize) {
|
|
test_dualview_resize<int, TEST_EXECSPACE>();
|
|
Impl::test_dualview_resize<NoDefaultConstructor, TEST_EXECSPACE,
|
|
/* Initialize */ false>();
|
|
}
|
|
|
|
namespace {
|
|
/**
|
|
*
|
|
* The following tests are a response to
|
|
* https://github.com/kokkos/kokkos/issues/3850
|
|
* and
|
|
* https://github.com/kokkos/kokkos/pull/3857
|
|
*
|
|
* DualViews were returning incorrect view types and taking
|
|
* inappropriate actions based on the templated view methods.
|
|
*
|
|
* Specifically, template view methods were always returning
|
|
* a device view if the memory space was UVM and a Kokkos::Device was passed.
|
|
* Sync/modify methods completely broke down So these tests exist to make sure
|
|
* that we keep the semantics of UVM DualViews intact.
|
|
*/
|
|
// modify if we have other UVM enabled backends
|
|
#if defined(KOKKOS_ENABLE_CUDA) || defined(KOKKOS_ENABLE_SYCL) || \
|
|
defined(KOKKOS_ENABLE_HIP) // OR other UVM builds
|
|
#define UVM_ENABLED_BUILD
|
|
#endif
|
|
|
|
#ifdef UVM_ENABLED_BUILD
|
|
template <typename ExecSpace>
|
|
struct UVMSpaceFor;
|
|
#endif
|
|
|
|
#ifdef KOKKOS_ENABLE_CUDA // specific to CUDA
|
|
template <>
|
|
struct UVMSpaceFor<Kokkos::Cuda> {
|
|
using type = Kokkos::CudaUVMSpace;
|
|
};
|
|
#endif
|
|
|
|
#ifdef KOKKOS_ENABLE_SYCL // specific to SYCL
|
|
template <>
|
|
struct UVMSpaceFor<Kokkos::Experimental::SYCL> {
|
|
using type = Kokkos::Experimental::SYCLSharedUSMSpace;
|
|
};
|
|
#endif
|
|
|
|
#ifdef KOKKOS_ENABLE_HIP // specific to HIP
|
|
template <>
|
|
struct UVMSpaceFor<Kokkos::HIP> {
|
|
using type = Kokkos::HIPManagedSpace;
|
|
};
|
|
#endif
|
|
|
|
#ifdef UVM_ENABLED_BUILD
|
|
template <>
|
|
struct UVMSpaceFor<Kokkos::DefaultHostExecutionSpace> {
|
|
using type = typename UVMSpaceFor<Kokkos::DefaultExecutionSpace>::type;
|
|
};
|
|
#else
|
|
template <typename ExecSpace>
|
|
struct UVMSpaceFor {
|
|
using type = typename ExecSpace::memory_space;
|
|
};
|
|
#endif
|
|
|
|
using ExecSpace = Kokkos::DefaultExecutionSpace;
|
|
using MemSpace = typename UVMSpaceFor<Kokkos::DefaultExecutionSpace>::type;
|
|
using DeviceType = Kokkos::Device<ExecSpace, MemSpace>;
|
|
|
|
using DualViewType = Kokkos::DualView<double*, Kokkos::LayoutLeft, DeviceType>;
|
|
using d_device = DeviceType;
|
|
using h_device = Kokkos::Device<
|
|
Kokkos::DefaultHostExecutionSpace,
|
|
typename UVMSpaceFor<Kokkos::DefaultHostExecutionSpace>::type>;
|
|
|
|
TEST(TEST_CATEGORY, dualview_device_correct_kokkos_device) {
|
|
DualViewType dv("myView", 100);
|
|
dv.clear_sync_state();
|
|
auto v_d = dv.template view<d_device>();
|
|
using vdt = decltype(v_d);
|
|
using vdt_d = vdt::device_type;
|
|
using vdt_d_e = vdt_d::execution_space;
|
|
ASSERT_STREQ(vdt_d_e::name(), Kokkos::DefaultExecutionSpace::name());
|
|
}
|
|
TEST(TEST_CATEGORY, dualview_host_correct_kokkos_device) {
|
|
DualViewType dv("myView", 100);
|
|
dv.clear_sync_state();
|
|
auto v_h = dv.template view<h_device>();
|
|
using vht = decltype(v_h);
|
|
using vht_d = vht::device_type;
|
|
using vht_d_e = vht_d::execution_space;
|
|
ASSERT_STREQ(vht_d_e::name(), Kokkos::DefaultHostExecutionSpace::name());
|
|
}
|
|
|
|
TEST(TEST_CATEGORY, dualview_host_modify_template_device_sync) {
|
|
DualViewType dv("myView", 100);
|
|
dv.clear_sync_state();
|
|
dv.modify_host();
|
|
dv.template sync<d_device>();
|
|
EXPECT_TRUE(!dv.need_sync_device());
|
|
EXPECT_TRUE(!dv.need_sync_host());
|
|
dv.clear_sync_state();
|
|
}
|
|
|
|
TEST(TEST_CATEGORY, dualview_host_modify_template_device_execspace_sync) {
|
|
DualViewType dv("myView", 100);
|
|
dv.clear_sync_state();
|
|
dv.modify_host();
|
|
dv.template sync<d_device::execution_space>();
|
|
EXPECT_TRUE(!dv.need_sync_device());
|
|
EXPECT_TRUE(!dv.need_sync_host());
|
|
dv.clear_sync_state();
|
|
}
|
|
|
|
TEST(TEST_CATEGORY, dualview_device_modify_template_host_sync) {
|
|
DualViewType dv("myView", 100);
|
|
dv.clear_sync_state();
|
|
dv.modify_device();
|
|
dv.template sync<h_device>();
|
|
EXPECT_TRUE(!dv.need_sync_device());
|
|
EXPECT_TRUE(!dv.need_sync_host());
|
|
dv.clear_sync_state();
|
|
}
|
|
TEST(TEST_CATEGORY, dualview_device_modify_template_host_execspace_sync) {
|
|
DualViewType dv("myView", 100);
|
|
dv.clear_sync_state();
|
|
dv.modify_device();
|
|
dv.template sync<h_device::execution_space>();
|
|
EXPECT_TRUE(!dv.need_sync_device());
|
|
EXPECT_TRUE(!dv.need_sync_host());
|
|
dv.clear_sync_state();
|
|
}
|
|
|
|
TEST(TEST_CATEGORY,
|
|
dualview_template_views_return_correct_executionspace_views) {
|
|
DualViewType dv("myView", 100);
|
|
dv.clear_sync_state();
|
|
using hvt = decltype(dv.view<typename Kokkos::DefaultHostExecutionSpace>());
|
|
using dvt = decltype(dv.view<typename Kokkos::DefaultExecutionSpace>());
|
|
ASSERT_STREQ(Kokkos::DefaultExecutionSpace::name(),
|
|
dvt::device_type::execution_space::name());
|
|
ASSERT_STREQ(Kokkos::DefaultHostExecutionSpace::name(),
|
|
hvt::device_type::execution_space::name());
|
|
}
|
|
|
|
} // anonymous namespace
|
|
} // namespace Test
|
|
|
|
#endif // KOKKOS_TEST_DUALVIEW_HPP
|