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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 <Kokkos_Core.hpp>
#include <gtest/gtest.h>
template <class View, class ExecutionSpace>
struct TestViewMemoryAccessViolation {
View v;
static constexpr auto rank = View::rank;
template <std::size_t... Is>
KOKKOS_FUNCTION decltype(auto) bad_access(std::index_sequence<Is...>) const {
return v((Is * 0)...);
}
KOKKOS_FUNCTION void operator()(int) const {
++bad_access(std::make_index_sequence<rank>{});
}
TestViewMemoryAccessViolation(View w, ExecutionSpace const& s,
std::string const& matcher)
: v(std::move(w)) {
constexpr bool view_accessible_from_execution_space =
Kokkos::SpaceAccessibility<
/*AccessSpace=*/ExecutionSpace,
/*MemorySpace=*/typename View::memory_space>::accessible;
EXPECT_FALSE(view_accessible_from_execution_space);
EXPECT_DEATH(
{
Kokkos::parallel_for(Kokkos::RangePolicy<ExecutionSpace>(s, 0, 1),
*this);
Kokkos::fence();
},
matcher);
}
};
template <class View, class ExecutionSpace>
void test_view_memory_access_violation(View v, ExecutionSpace const& s,
std::string const& m) {
TestViewMemoryAccessViolation<View, ExecutionSpace>(std::move(v), s, m);
}
template <class View, class LblOrPtr, std::size_t... Is>
auto make_view_impl(LblOrPtr x, std::index_sequence<Is...>) {
return View(x, (Is + 1)...);
}
template <class View, class LblOrPtr>
auto make_view(LblOrPtr x) {
return make_view_impl<View>(std::move(x),
std::make_index_sequence<View::rank>());
}
template <class ExecutionSpace>
void test_view_memory_access_violations_from_host() {
Kokkos::DefaultHostExecutionSpace const host_exec_space{};
// clang-format off
using V0 = Kokkos::View<int, ExecutionSpace>;
using V1 = Kokkos::View<int*, ExecutionSpace>;
using V2 = Kokkos::View<int**, ExecutionSpace>;
using V3 = Kokkos::View<int***, ExecutionSpace>;
using V4 = Kokkos::View<int****, ExecutionSpace>;
using V5 = Kokkos::View<int*****, ExecutionSpace>;
using V6 = Kokkos::View<int******, ExecutionSpace>;
using V7 = Kokkos::View<int*******, ExecutionSpace>;
using V8 = Kokkos::View<int********, ExecutionSpace>;
std::string const prefix = "Kokkos::View ERROR: attempt to access inaccessible memory space";
std::string const lbl = "my_label";
test_view_memory_access_violation(make_view<V0>(lbl), host_exec_space, prefix + ".*" + lbl);
test_view_memory_access_violation(make_view<V1>(lbl), host_exec_space, prefix + ".*" + lbl);
test_view_memory_access_violation(make_view<V2>(lbl), host_exec_space, prefix + ".*" + lbl);
test_view_memory_access_violation(make_view<V3>(lbl), host_exec_space, prefix + ".*" + lbl);
test_view_memory_access_violation(make_view<V4>(lbl), host_exec_space, prefix + ".*" + lbl);
test_view_memory_access_violation(make_view<V5>(lbl), host_exec_space, prefix + ".*" + lbl);
test_view_memory_access_violation(make_view<V6>(lbl), host_exec_space, prefix + ".*" + lbl);
test_view_memory_access_violation(make_view<V7>(lbl), host_exec_space, prefix + ".*" + lbl);
test_view_memory_access_violation(make_view<V8>(lbl), host_exec_space, prefix + ".*" + lbl);
V0 v0("v0"); // obtain a valid pointer for an allocation in the right space
int* const ptr = v0.data();
test_view_memory_access_violation(make_view<V0>(ptr), host_exec_space, prefix + ".*UNMANAGED");
test_view_memory_access_violation(make_view<V1>(ptr), host_exec_space, prefix + ".*UNMANAGED");
test_view_memory_access_violation(make_view<V2>(ptr), host_exec_space, prefix + ".*UNMANAGED");
test_view_memory_access_violation(make_view<V3>(ptr), host_exec_space, prefix + ".*UNMANAGED");
test_view_memory_access_violation(make_view<V4>(ptr), host_exec_space, prefix + ".*UNMANAGED");
test_view_memory_access_violation(make_view<V5>(ptr), host_exec_space, prefix + ".*UNMANAGED");
test_view_memory_access_violation(make_view<V6>(ptr), host_exec_space, prefix + ".*UNMANAGED");
test_view_memory_access_violation(make_view<V7>(ptr), host_exec_space, prefix + ".*UNMANAGED");
test_view_memory_access_violation(make_view<V8>(ptr), host_exec_space, prefix + ".*UNMANAGED");
// clang-format on
}
template <class ExecutionSpace>
void test_view_memory_access_violations_from_device() {
ExecutionSpace const exec_space{};
// clang-format off
using V0 = Kokkos::View<int, Kokkos::HostSpace>;
using V1 = Kokkos::View<int*, Kokkos::HostSpace>;
using V2 = Kokkos::View<int**, Kokkos::HostSpace>;
using V3 = Kokkos::View<int***, Kokkos::HostSpace>;
using V4 = Kokkos::View<int****, Kokkos::HostSpace>;
using V5 = Kokkos::View<int*****, Kokkos::HostSpace>;
using V6 = Kokkos::View<int******, Kokkos::HostSpace>;
using V7 = Kokkos::View<int*******, Kokkos::HostSpace>;
using V8 = Kokkos::View<int********, Kokkos::HostSpace>;
#ifdef KOKKOS_ENABLE_SYCL
// The invalid access is detected directly and we can't capture the error message
std::string const message = ".*";
#else
std::string const message = "Kokkos::View ERROR: attempt to access inaccessible memory space.*UNAVAILABLE";
#endif
std::string const lbl = "my_label";
test_view_memory_access_violation(make_view<V0>(lbl), exec_space, message);
test_view_memory_access_violation(make_view<V1>(lbl), exec_space, message);
test_view_memory_access_violation(make_view<V2>(lbl), exec_space, message);
test_view_memory_access_violation(make_view<V3>(lbl), exec_space, message);
test_view_memory_access_violation(make_view<V4>(lbl), exec_space, message);
test_view_memory_access_violation(make_view<V5>(lbl), exec_space, message);
test_view_memory_access_violation(make_view<V6>(lbl), exec_space, message);
test_view_memory_access_violation(make_view<V7>(lbl), exec_space, message);
test_view_memory_access_violation(make_view<V8>(lbl), exec_space, message);
V0 v0("v0"); // obtain a valid pointer for an allocation in the right space
int* const ptr = v0.data();
test_view_memory_access_violation(make_view<V0>(ptr), exec_space, message);
test_view_memory_access_violation(make_view<V1>(ptr), exec_space, message);
test_view_memory_access_violation(make_view<V2>(ptr), exec_space, message);
test_view_memory_access_violation(make_view<V3>(ptr), exec_space, message);
test_view_memory_access_violation(make_view<V4>(ptr), exec_space, message);
test_view_memory_access_violation(make_view<V5>(ptr), exec_space, message);
test_view_memory_access_violation(make_view<V6>(ptr), exec_space, message);
test_view_memory_access_violation(make_view<V7>(ptr), exec_space, message);
test_view_memory_access_violation(make_view<V8>(ptr), exec_space, message);
// clang-format on
}
TEST(TEST_CATEGORY_DEATH, view_memory_access_violations_from_host) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
using ExecutionSpace = TEST_EXECSPACE;
if (Kokkos::SpaceAccessibility<
/*AccessSpace=*/Kokkos::HostSpace,
/*MemorySpace=*/typename ExecutionSpace::memory_space>::accessible) {
GTEST_SKIP() << "skipping since no memory access violation would occur";
}
test_view_memory_access_violations_from_host<ExecutionSpace>();
}
TEST(TEST_CATEGORY_DEATH, view_memory_access_violations_from_device) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
using ExecutionSpace = TEST_EXECSPACE;
if (Kokkos::SpaceAccessibility<
/*AccessSpace=*/ExecutionSpace,
/*MemorySpace=*/Kokkos::HostSpace>::accessible) {
GTEST_SKIP() << "skipping since no memory access violation would occur";
}
#if defined(KOKKOS_ENABLE_SYCL) && defined(NDEBUG) // FIXME_SYCL
if (std::is_same_v<ExecutionSpace, Kokkos::SYCL>) {
GTEST_SKIP() << "skipping because SYCL device-side abort does not work "
"when NDEBUG is defined";
}
#endif
#if defined(KOKKOS_ENABLE_OPENMPTARGET) // FIXME_OPENMPTARGET
if (std::is_same<ExecutionSpace, Kokkos::Experimental::OpenMPTarget>::value) {
GTEST_SKIP() << "skipping because OpenMPTarget backend is currently not "
"able to abort from the device";
}
#endif
#if defined(KOKKOS_ENABLE_OPENACC) // FIXME_OPENACC
if (std::is_same<ExecutionSpace, Kokkos::Experimental::OpenACC>::value) {
GTEST_SKIP() << "skipping because OpenACC backend is currently not "
"able to abort from the device";
}
#endif
test_view_memory_access_violations_from_device<ExecutionSpace>();
}
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