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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// SPDX-FileCopyrightText: Copyright Contributors to the Kokkos project
#include <Kokkos_Macros.hpp>
#ifdef KOKKOS_ENABLE_EXPERIMENTAL_CXX20_MODULES
import kokkos.core;
#else
#include <Kokkos_Core.hpp>
#endif
#include <TestHPX_Category.hpp>
#include <hpx/config.hpp>
#include <hpx/future.hpp>
#ifndef HPX_COMPUTE_DEVICE_CODE
namespace {
struct FunctorInitConstant {
Kokkos::View<int *, Kokkos::Experimental::HPX> a;
int c;
FunctorInitConstant(Kokkos::View<int *, Kokkos::Experimental::HPX> a_, int c_)
: a(a_), c(c_) {}
KOKKOS_INLINE_FUNCTION
void operator()(const int i) const { a(i) = c; }
};
struct FunctorAdd {
Kokkos::View<int *, Kokkos::Experimental::HPX> a;
Kokkos::View<int *, Kokkos::Experimental::HPX> b;
int c;
FunctorAdd(Kokkos::View<int *, Kokkos::Experimental::HPX> a_,
Kokkos::View<int *, Kokkos::Experimental::HPX> b_, int c_)
: a(a_), b(b_), c(c_) {}
KOKKOS_INLINE_FUNCTION
void operator()(const int i) const { b(i) += a(i) + c; }
};
struct FunctorAddIndex {
Kokkos::View<int *, Kokkos::Experimental::HPX> a;
Kokkos::View<int *, Kokkos::Experimental::HPX> b;
FunctorAddIndex(Kokkos::View<int *, Kokkos::Experimental::HPX> a_,
Kokkos::View<int *, Kokkos::Experimental::HPX> b_)
: a(a_), b(b_) {}
KOKKOS_INLINE_FUNCTION
void operator()(const int i) const { b(i) += a(i) + i; }
};
struct FunctorPointwiseSum {
Kokkos::View<int *, Kokkos::Experimental::HPX> a;
Kokkos::View<int *, Kokkos::Experimental::HPX> b;
Kokkos::View<int *, Kokkos::Experimental::HPX> c;
FunctorPointwiseSum(Kokkos::View<int *, Kokkos::Experimental::HPX> a_,
Kokkos::View<int *, Kokkos::Experimental::HPX> b_,
Kokkos::View<int *, Kokkos::Experimental::HPX> c_)
: a(a_), b(b_), c(c_) {}
KOKKOS_INLINE_FUNCTION
void operator()(const int i) const { c(i) = a(i) + b(i); }
};
struct FunctorReduce {
Kokkos::View<int *, Kokkos::Experimental::HPX> a;
FunctorReduce(Kokkos::View<int *, Kokkos::Experimental::HPX> a_) : a(a_) {}
KOKKOS_INLINE_FUNCTION
void operator()(const int i, int &lsum) const { lsum += a(i); }
};
TEST(hpx, independent_instances) {
const int n = 100;
const int c = 1;
const int d = 3;
Kokkos::View<int *, Kokkos::Experimental::HPX> v1("v1", n);
Kokkos::View<int *, Kokkos::Experimental::HPX> v2("v2", n);
Kokkos::View<int *, Kokkos::Experimental::HPX> v3("v3", n);
Kokkos::View<int *, Kokkos::Experimental::HPX> v4("v4", n);
Kokkos::View<int, Kokkos::Experimental::HPX> sum_v("sum_v");
Kokkos::Experimental::HPX hpx1(
Kokkos::Experimental::HPX::instance_mode::independent);
Kokkos::parallel_for(
"Test::hpx::independent_instances::init",
Kokkos::Experimental::require(
Kokkos::RangePolicy<Kokkos::Experimental::HPX>(hpx1, 0, n),
Kokkos::Experimental::WorkItemProperty::HintLightWeight),
FunctorInitConstant(v1, c));
Kokkos::Experimental::HPX hpx2(hpx1.get_sender());
Kokkos::parallel_for(
"Test::hpx::independent_instances::add",
Kokkos::Experimental::require(
Kokkos::RangePolicy<Kokkos::Experimental::HPX>(hpx2, 0, n),
Kokkos::Experimental::WorkItemProperty::HintLightWeight),
FunctorAdd(v1, v2, d));
Kokkos::Experimental::HPX hpx3(hpx1.get_sender());
Kokkos::parallel_for(
"Test::hpx::independent_instances::add_index",
Kokkos::Experimental::require(
Kokkos::RangePolicy<Kokkos::Experimental::HPX>(hpx3, 0, n),
Kokkos::Experimental::WorkItemProperty::HintLightWeight),
FunctorAddIndex(v1, v3));
Kokkos::Experimental::HPX hpx4(hpx::execution::experimental::when_all(
hpx2.get_sender(), hpx3.get_sender()));
Kokkos::parallel_for(
"Test::hpx::independent_instances::pointwise_sum",
Kokkos::Experimental::require(
Kokkos::RangePolicy<Kokkos::Experimental::HPX>(hpx4, 0, n),
Kokkos::Experimental::WorkItemProperty::HintLightWeight),
FunctorPointwiseSum(v2, v3, v4));
Kokkos::parallel_reduce(
"Test::hpx::independent_instances::reduce",
Kokkos::Experimental::require(
Kokkos::RangePolicy<Kokkos::Experimental::HPX>(hpx4, 0, n),
Kokkos::Experimental::WorkItemProperty::HintLightWeight),
FunctorReduce(v4), Kokkos::Sum<int>(sum_v));
hpx4.fence();
const int expected_sum = n * (2 * c + d) + (n * (n - 1) / 2);
ASSERT_EQ(expected_sum, sum_v());
}
} // namespace
#endif
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