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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 <cstdio>
#include <gtest/gtest.h>
#include <Kokkos_Core.hpp>
namespace Test {
namespace {
template <class ViewType>
struct CheckResult {
using value_type = typename ViewType::non_const_value_type;
ViewType v;
value_type value;
CheckResult(ViewType v_, value_type value_) : v(v_), value(value_) {}
KOKKOS_FUNCTION
void operator()(const int i, int& lsum) const {
for (int j = 0; j < static_cast<int>(v.extent(1)); j++) {
if (v.access(i, j) != value) lsum++;
}
}
};
template <class ViewType>
bool run_check(ViewType v, typename ViewType::value_type value) {
using exec_space = typename ViewType::memory_space::execution_space;
int errors = 0;
Kokkos::fence();
Kokkos::parallel_reduce(Kokkos::RangePolicy<exec_space>(0, v.extent(0)),
CheckResult<ViewType>(v, value), errors);
return errors == 0;
}
} // namespace
TEST(TEST_CATEGORY, view_copy_tests) {
int N = 10000;
int M = 10;
Kokkos::View<int**, Kokkos::LayoutRight, TEST_EXECSPACE> defaulted;
Kokkos::View<int**, Kokkos::LayoutRight, TEST_EXECSPACE> a("A", N, M);
Kokkos::View<int**, Kokkos::LayoutRight, TEST_EXECSPACE> b("B", N, M);
auto h_a = Kokkos::create_mirror(a);
auto h_b = Kokkos::create_mirror(b);
auto m_a = Kokkos::create_mirror_view(a);
auto s_a = Kokkos::subview(a, Kokkos::ALL, 1);
auto s_b = Kokkos::subview(b, Kokkos::ALL, 1);
auto hs_a = Kokkos::subview(h_a, Kokkos::ALL, 1);
auto hs_b = Kokkos::subview(h_b, Kokkos::ALL, 1);
auto dev = typename TEST_EXECSPACE::execution_space();
auto host = Kokkos::DefaultHostExecutionSpace();
constexpr bool DevExecCanAccessHost =
Kokkos::SpaceAccessibility<typename TEST_EXECSPACE::execution_space,
Kokkos::HostSpace>::accessible;
constexpr bool HostExecCanAccessDev = Kokkos::SpaceAccessibility<
typename Kokkos::HostSpace::execution_space,
typename TEST_EXECSPACE::memory_space>::accessible;
// Contiguous copies
{ Kokkos::deep_copy(defaulted, defaulted); }
{
Kokkos::deep_copy(a, 0);
ASSERT_TRUE(run_check(a, 0));
}
{
Kokkos::deep_copy(a, 1);
ASSERT_TRUE(run_check(a, 1));
}
{
Kokkos::deep_copy(a, a);
ASSERT_TRUE(run_check(a, 1));
}
{
Kokkos::deep_copy(m_a, a);
ASSERT_TRUE(run_check(m_a, 1));
}
{
Kokkos::deep_copy(m_a, 2);
ASSERT_TRUE(run_check(m_a, 2));
}
{
Kokkos::deep_copy(a, m_a);
ASSERT_TRUE(run_check(a, 2));
}
{
Kokkos::deep_copy(b, 3);
ASSERT_TRUE(run_check(b, 3));
}
{
Kokkos::deep_copy(h_a, 4);
ASSERT_TRUE(run_check(h_a, 4));
}
{
Kokkos::deep_copy(a, b);
ASSERT_TRUE(run_check(a, 3));
}
{
Kokkos::deep_copy(h_b, h_a);
ASSERT_TRUE(run_check(h_b, 4));
}
{
Kokkos::deep_copy(h_a, a);
ASSERT_TRUE(run_check(h_a, 3));
}
{
Kokkos::deep_copy(b, h_b);
ASSERT_TRUE(run_check(b, 4));
}
// Non contiguous copies
{
Kokkos::deep_copy(s_a, 5);
ASSERT_TRUE(run_check(s_a, 5));
}
{
Kokkos::deep_copy(hs_a, 6);
ASSERT_TRUE(run_check(hs_a, 6));
}
{
Kokkos::deep_copy(s_b, s_a);
ASSERT_TRUE(run_check(s_b, 5));
}
{
Kokkos::deep_copy(hs_b, hs_a);
ASSERT_TRUE(run_check(hs_b, 6));
}
if (DevExecCanAccessHost || HostExecCanAccessDev) {
{
Kokkos::deep_copy(hs_b, s_b);
ASSERT_TRUE(run_check(hs_b, 5));
}
{
Kokkos::deep_copy(s_a, hs_a);
ASSERT_TRUE(run_check(s_a, 6));
}
} else {
// These copies won't succeed, but they should each throw
// an exception whose message contains the view labels,
// and the names of the views' memory spaces.
//
// Note: original a,b both have the same device type,
// and their mirrors have the same device type.
using memory_space = typename decltype(a)::memory_space;
using mirror_memory_space = typename decltype(h_a)::memory_space;
bool threw = false;
std::string msg;
try {
Kokkos::deep_copy(hs_b, s_b);
} catch (std::exception& e) {
threw = true;
msg = e.what();
}
ASSERT_TRUE(threw);
ASSERT_NE(msg.find(hs_b.label()), std::string::npos);
ASSERT_NE(msg.find(s_b.label()), std::string::npos);
ASSERT_NE(msg.find(memory_space().name()), std::string::npos);
ASSERT_NE(msg.find(mirror_memory_space().name()), std::string::npos);
threw = false;
try {
Kokkos::deep_copy(s_a, hs_a);
} catch (std::exception& e) {
threw = true;
msg = e.what();
}
ASSERT_TRUE(threw);
ASSERT_NE(msg.find(s_a.label()), std::string::npos);
ASSERT_NE(msg.find(hs_a.label()), std::string::npos);
ASSERT_NE(msg.find(memory_space().name()), std::string::npos);
ASSERT_NE(msg.find(mirror_memory_space().name()), std::string::npos);
}
// Contiguous copies
{ Kokkos::deep_copy(dev, defaulted, defaulted); }
{
Kokkos::deep_copy(dev, a, 0);
ASSERT_TRUE(run_check(a, 0));
}
{
Kokkos::deep_copy(dev, a, 1);
ASSERT_TRUE(run_check(a, 1));
}
{
Kokkos::deep_copy(dev, a, a);
ASSERT_TRUE(run_check(a, 1));
}
{
Kokkos::deep_copy(dev, m_a, a);
ASSERT_TRUE(run_check(m_a, 1));
}
{
Kokkos::deep_copy(dev, m_a, 2);
ASSERT_TRUE(run_check(m_a, 2));
}
{
Kokkos::deep_copy(dev, a, m_a);
ASSERT_TRUE(run_check(a, 2));
}
{
Kokkos::deep_copy(dev, b, 3);
ASSERT_TRUE(run_check(b, 3));
}
{
Kokkos::deep_copy(dev, h_a, 4);
ASSERT_TRUE(run_check(h_a, 4));
}
{
Kokkos::deep_copy(dev, a, b);
ASSERT_TRUE(run_check(a, 3));
}
{
Kokkos::deep_copy(dev, h_b, h_a);
ASSERT_TRUE(run_check(h_b, 4));
}
{
Kokkos::deep_copy(dev, h_a, a);
ASSERT_TRUE(run_check(h_a, 3));
}
{
Kokkos::deep_copy(dev, b, h_b);
ASSERT_TRUE(run_check(b, 4));
}
// Non contiguous copies
{
Kokkos::deep_copy(dev, s_a, 5);
ASSERT_TRUE(run_check(s_a, 5));
}
{
Kokkos::deep_copy(dev, hs_a, 6);
ASSERT_TRUE(run_check(hs_a, 6));
}
{
Kokkos::deep_copy(dev, s_b, s_a);
ASSERT_TRUE(run_check(s_b, 5));
}
{
Kokkos::deep_copy(dev, hs_b, hs_a);
ASSERT_TRUE(run_check(hs_b, 6));
}
if (DevExecCanAccessHost || HostExecCanAccessDev) {
{
Kokkos::deep_copy(dev, hs_b, s_b);
ASSERT_TRUE(run_check(hs_b, 5));
}
{
Kokkos::deep_copy(dev, s_a, hs_a);
ASSERT_TRUE(run_check(s_a, 6));
}
}
// Contiguous copies
{ Kokkos::deep_copy(host, defaulted, defaulted); }
{
Kokkos::deep_copy(host, a, 0);
ASSERT_TRUE(run_check(a, 0));
}
{
Kokkos::deep_copy(host, a, 1);
ASSERT_TRUE(run_check(a, 1));
}
{
Kokkos::deep_copy(host, a, a);
ASSERT_TRUE(run_check(a, 1));
}
{
Kokkos::deep_copy(host, m_a, a);
ASSERT_TRUE(run_check(m_a, 1));
}
{
Kokkos::deep_copy(host, m_a, 2);
ASSERT_TRUE(run_check(m_a, 2));
}
{
Kokkos::deep_copy(host, a, m_a);
ASSERT_TRUE(run_check(a, 2));
}
{
Kokkos::deep_copy(host, b, 3);
ASSERT_TRUE(run_check(b, 3));
}
{
Kokkos::deep_copy(host, h_a, 4);
ASSERT_TRUE(run_check(h_a, 4));
}
{
Kokkos::deep_copy(host, a, b);
ASSERT_TRUE(run_check(a, 3));
}
{
Kokkos::deep_copy(host, h_b, h_a);
ASSERT_TRUE(run_check(h_b, 4));
}
{
Kokkos::deep_copy(host, h_a, a);
ASSERT_TRUE(run_check(h_a, 3));
}
{
Kokkos::deep_copy(host, b, h_b);
ASSERT_TRUE(run_check(b, 4));
}
// Non contiguous copies
{
Kokkos::deep_copy(host, s_a, 5);
ASSERT_TRUE(run_check(s_a, 5));
}
{
Kokkos::deep_copy(host, hs_a, 6);
ASSERT_TRUE(run_check(hs_a, 6));
}
{
Kokkos::deep_copy(host, s_b, s_a);
ASSERT_TRUE(run_check(s_b, 5));
}
{
Kokkos::deep_copy(host, hs_b, hs_a);
ASSERT_TRUE(run_check(hs_b, 6));
}
if (DevExecCanAccessHost || HostExecCanAccessDev) {
{
Kokkos::deep_copy(host, hs_b, s_b);
ASSERT_TRUE(run_check(hs_b, 5));
}
{
Kokkos::deep_copy(host, s_a, hs_a);
ASSERT_TRUE(run_check(s_a, 6));
}
}
}
} // namespace Test
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