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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 <TestCuda_Category.hpp>
namespace Test {
__global__ void test_abort() { Kokkos::abort("test_abort"); }
__global__ void test_cuda_spaces_int_value(int *ptr) {
if (*ptr == 42) {
*ptr = 2 * 42;
}
}
TEST(cuda, space_access) {
static_assert(Kokkos::Impl::MemorySpaceAccess<Kokkos::HostSpace,
Kokkos::HostSpace>::assignable);
static_assert(
Kokkos::Impl::MemorySpaceAccess<Kokkos::HostSpace,
Kokkos::CudaHostPinnedSpace>::assignable);
static_assert(
!Kokkos::Impl::MemorySpaceAccess<Kokkos::HostSpace,
Kokkos::CudaSpace>::assignable);
#ifndef KOKKOS_ENABLE_IMPL_CUDA_UNIFIED_MEMORY
static_assert(
!Kokkos::Impl::MemorySpaceAccess<Kokkos::HostSpace,
Kokkos::CudaSpace>::accessible);
#else
static_assert(Kokkos::Impl::MemorySpaceAccess<Kokkos::HostSpace,
Kokkos::CudaSpace>::accessible);
#endif
static_assert(
!Kokkos::Impl::MemorySpaceAccess<Kokkos::HostSpace,
Kokkos::CudaUVMSpace>::assignable);
static_assert(
Kokkos::Impl::MemorySpaceAccess<Kokkos::HostSpace,
Kokkos::CudaUVMSpace>::accessible);
//--------------------------------------
static_assert(Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaSpace,
Kokkos::CudaSpace>::assignable);
static_assert(
Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaSpace,
Kokkos::CudaUVMSpace>::assignable);
static_assert(!Kokkos::Impl::MemorySpaceAccess<
Kokkos::CudaSpace, Kokkos::CudaHostPinnedSpace>::assignable);
static_assert(
Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaSpace,
Kokkos::CudaHostPinnedSpace>::accessible);
static_assert(
!Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaSpace,
Kokkos::HostSpace>::assignable);
static_assert(
!Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaSpace,
Kokkos::HostSpace>::accessible);
//--------------------------------------
static_assert(
Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaUVMSpace,
Kokkos::CudaUVMSpace>::assignable);
static_assert(
!Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaUVMSpace,
Kokkos::CudaSpace>::assignable);
static_assert(Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaUVMSpace,
Kokkos::CudaSpace>::accessible);
static_assert(
!Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaUVMSpace,
Kokkos::HostSpace>::assignable);
static_assert(
!Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaUVMSpace,
Kokkos::HostSpace>::accessible);
static_assert(!Kokkos::Impl::MemorySpaceAccess<
Kokkos::CudaUVMSpace, Kokkos::CudaHostPinnedSpace>::assignable);
static_assert(
Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaUVMSpace,
Kokkos::CudaHostPinnedSpace>::accessible);
//--------------------------------------
static_assert(
Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaHostPinnedSpace,
Kokkos::CudaHostPinnedSpace>::assignable);
static_assert(
!Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaHostPinnedSpace,
Kokkos::HostSpace>::assignable);
static_assert(Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaHostPinnedSpace,
Kokkos::HostSpace>::accessible);
static_assert(
!Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaHostPinnedSpace,
Kokkos::CudaSpace>::assignable);
static_assert(
!Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaHostPinnedSpace,
Kokkos::CudaSpace>::accessible);
static_assert(
!Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaHostPinnedSpace,
Kokkos::CudaUVMSpace>::assignable);
static_assert(
Kokkos::Impl::MemorySpaceAccess<Kokkos::CudaHostPinnedSpace,
Kokkos::CudaUVMSpace>::accessible);
//--------------------------------------
static_assert(
!Kokkos::SpaceAccessibility<Kokkos::Cuda, Kokkos::HostSpace>::accessible);
static_assert(
Kokkos::SpaceAccessibility<Kokkos::Cuda, Kokkos::CudaSpace>::accessible);
static_assert(Kokkos::SpaceAccessibility<Kokkos::Cuda,
Kokkos::CudaUVMSpace>::accessible);
static_assert(
Kokkos::SpaceAccessibility<Kokkos::Cuda,
Kokkos::CudaHostPinnedSpace>::accessible);
#ifndef KOKKOS_ENABLE_IMPL_CUDA_UNIFIED_MEMORY
static_assert(!Kokkos::SpaceAccessibility<Kokkos::HostSpace,
Kokkos::CudaSpace>::accessible);
#else
static_assert(Kokkos::SpaceAccessibility<Kokkos::HostSpace,
Kokkos::CudaSpace>::accessible);
#endif
static_assert(Kokkos::SpaceAccessibility<Kokkos::HostSpace,
Kokkos::CudaUVMSpace>::accessible);
static_assert(
Kokkos::SpaceAccessibility<Kokkos::HostSpace,
Kokkos::CudaHostPinnedSpace>::accessible);
#ifndef KOKKOS_ENABLE_IMPL_CUDA_UNIFIED_MEMORY
static_assert(
std::is_same_v<Kokkos::Impl::HostMirror<Kokkos::CudaSpace>::Space,
Kokkos::HostSpace>);
#else
static_assert(
std::is_same_v<Kokkos::Impl::HostMirror<Kokkos::CudaSpace>::Space,
Kokkos::Device<Kokkos::HostSpace::execution_space,
Kokkos::CudaSpace>>);
#endif
static_assert(
std::is_same_v<Kokkos::Impl::HostMirror<Kokkos::CudaUVMSpace>::Space,
Kokkos::Device<Kokkos::HostSpace::execution_space,
Kokkos::CudaUVMSpace>>);
static_assert(std::is_same_v<
Kokkos::Impl::HostMirror<Kokkos::CudaHostPinnedSpace>::Space,
Kokkos::CudaHostPinnedSpace>);
static_assert(
std::is_same_v<Kokkos::Device<Kokkos::HostSpace::execution_space,
Kokkos::CudaUVMSpace>,
Kokkos::Device<Kokkos::HostSpace::execution_space,
Kokkos::CudaUVMSpace>>);
static_assert(
Kokkos::SpaceAccessibility<Kokkos::Impl::HostMirror<Kokkos::Cuda>::Space,
Kokkos::HostSpace>::accessible);
static_assert(Kokkos::SpaceAccessibility<
Kokkos::Impl::HostMirror<Kokkos::CudaSpace>::Space,
Kokkos::HostSpace>::accessible);
static_assert(Kokkos::SpaceAccessibility<
Kokkos::Impl::HostMirror<Kokkos::CudaUVMSpace>::Space,
Kokkos::HostSpace>::accessible);
static_assert(Kokkos::SpaceAccessibility<
Kokkos::Impl::HostMirror<Kokkos::CudaHostPinnedSpace>::Space,
Kokkos::HostSpace>::accessible);
#ifdef KOKKOS_ENABLE_CUDA_UVM
using uvm_view = Kokkos::View<double *, Kokkos::CudaUVMSpace>;
static_assert(std::is_same_v<uvm_view::HostMirror::execution_space,
Kokkos::DefaultHostExecutionSpace>,
"Verify HostMirror execution space is really a host space");
#endif
}
TEST(cuda, uvm) {
int *uvm_ptr = static_cast<int *>(
Kokkos::kokkos_malloc<Kokkos::CudaUVMSpace>("uvm_ptr", sizeof(int)));
*uvm_ptr = 42;
Kokkos::fence();
test_cuda_spaces_int_value<<<1, 1>>>(uvm_ptr);
Kokkos::fence();
EXPECT_EQ(*uvm_ptr, int(2 * 42));
Kokkos::kokkos_free<Kokkos::CudaUVMSpace>(uvm_ptr);
}
template <class MemSpace, class ExecSpace>
struct TestViewCudaAccessible {
enum { N = 1000 };
using V = Kokkos::View<double *, MemSpace>;
V m_base;
struct TagInit {};
struct TagTest {};
KOKKOS_INLINE_FUNCTION
void operator()(const TagInit &, const int i) const { m_base[i] = i + 1; }
KOKKOS_INLINE_FUNCTION
void operator()(const TagTest &, const int i, long &error_count) const {
if (m_base[i] != i + 1) ++error_count;
}
TestViewCudaAccessible() : m_base("base", N) {}
static void run() {
TestViewCudaAccessible self;
Kokkos::parallel_for(
Kokkos::RangePolicy<typename MemSpace::execution_space, TagInit>(0, N),
self);
typename MemSpace::execution_space().fence();
// Next access is a different execution space, must complete prior kernel.
long error_count = -1;
Kokkos::parallel_reduce(Kokkos::RangePolicy<ExecSpace, TagTest>(0, N), self,
error_count);
EXPECT_EQ(error_count, 0);
}
};
TEST(cuda, impl_view_accessible) {
TestViewCudaAccessible<Kokkos::CudaSpace, Kokkos::Cuda>::run();
TestViewCudaAccessible<Kokkos::CudaUVMSpace, Kokkos::Cuda>::run();
TestViewCudaAccessible<Kokkos::CudaUVMSpace,
Kokkos::HostSpace::execution_space>::run();
TestViewCudaAccessible<Kokkos::CudaHostPinnedSpace, Kokkos::Cuda>::run();
TestViewCudaAccessible<Kokkos::CudaHostPinnedSpace,
Kokkos::HostSpace::execution_space>::run();
}
template <class MemSpace>
struct TestViewCudaTexture {
enum { N = 1000 };
using V = Kokkos::View<double *, MemSpace>;
using T = Kokkos::View<const double *, MemSpace, Kokkos::MemoryRandomAccess>;
V m_base;
T m_tex;
struct TagInit {};
struct TagTest {};
KOKKOS_INLINE_FUNCTION
void operator()(const TagInit &, const int i) const { m_base[i] = i + 1; }
KOKKOS_INLINE_FUNCTION
void operator()(const TagTest &, const int i, long &error_count) const {
if (m_tex[i] != i + 1) ++error_count;
}
TestViewCudaTexture() : m_base("base", N), m_tex(m_base) {}
static void run() {
EXPECT_TRUE((std::is_same_v<typename V::reference_type, double &>));
#ifdef KOKKOS_ENABLE_IMPL_VIEW_LEGACY
EXPECT_TRUE((std::is_same_v<typename T::reference_type, const double>));
#else
EXPECT_TRUE((std::is_same_v<typename T::reference_type, const double &>));
#endif
EXPECT_TRUE(V::reference_type_is_lvalue_reference); // An ordinary view.
#ifdef KOKKOS_ENABLE_IMPL_VIEW_LEGACY
EXPECT_FALSE(T::reference_type_is_lvalue_reference); // Texture fetch
// returns by value.
#else
EXPECT_TRUE(T::reference_type_is_lvalue_reference); // FIXME: Returns by
// value for now.
#endif
TestViewCudaTexture self;
Kokkos::parallel_for(Kokkos::RangePolicy<Kokkos::Cuda, TagInit>(0, N),
self);
long error_count = -1;
Kokkos::parallel_reduce(Kokkos::RangePolicy<Kokkos::Cuda, TagTest>(0, N),
self, error_count);
EXPECT_EQ(error_count, 0);
}
};
TEST(cuda, impl_view_texture) {
TestViewCudaTexture<Kokkos::CudaSpace>::run();
TestViewCudaTexture<Kokkos::CudaUVMSpace>::run();
}
// couldn't create a random-access subview of a view of const T in Kokkos::Cuda
namespace issue_5594 {
template <typename View>
struct InitFunctor {
InitFunctor(const View &view) : view_(view) {}
KOKKOS_INLINE_FUNCTION
void operator()(int i) const { view_(i) = i; }
View view_;
};
template <typename V1, typename V2>
struct Issue5594Functor {
Issue5594Functor(const V1 &v1) : v1_(v1) {}
KOKKOS_INLINE_FUNCTION
void operator()(int i, int &lerr) const {
V2 v2(&v1_(0),
v1_.size()); // failure here -- create subview in execution space
lerr += v1_(i) != v2(i); // check that subview is correct
}
V1 v1_;
};
template <typename View>
View create_view() {
using execution_space = typename View::execution_space;
View view("", 10);
// MSVC+CUDA errors on CTAD here
InitFunctor<View> iota(view);
Kokkos::parallel_for("test_view_subview_const_randomaccess",
Kokkos::RangePolicy<execution_space>(0, view.extent(0)),
iota);
return view;
}
// creating a RandomAccess subview of a view of const T in Kokkos::Cuda
template <typename Exec, typename Mem>
void test_view_subview_const_randomaccess() {
using view_t = Kokkos::View<int *, Mem>;
using view_const_t = Kokkos::View<const int *, Mem>;
using u_view_const_t = Kokkos::View<
const int *, Mem,
Kokkos::MemoryTraits<Kokkos::Unmanaged | Kokkos::RandomAccess>>;
// create non-const view with known values
view_t nonConst = create_view<view_t>();
// get a const version of the values
view_const_t view(nonConst);
// create a subview in the execution space and check that it worked
Issue5594Functor<view_const_t, u_view_const_t> checker(view);
int errCount;
Kokkos::parallel_reduce("test_view_subview_const_randomaccess",
Kokkos::RangePolicy<Exec>(0, view.extent(0)), checker,
errCount);
EXPECT_TRUE(0 == errCount);
}
} // namespace issue_5594
TEST(cuda, view_subview_const_randomaccess) {
issue_5594::test_view_subview_const_randomaccess<Kokkos::Cuda,
Kokkos::CudaSpace>();
issue_5594::test_view_subview_const_randomaccess<Kokkos::Cuda,
Kokkos::CudaUVMSpace>();
}
} // namespace Test
|
