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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// SPDX-FileCopyrightText: Copyright Contributors to the Kokkos project
#include <gtest/gtest.h>
#include <Kokkos_Macros.hpp>
#ifdef KOKKOS_ENABLE_EXPERIMENTAL_CXX20_MODULES
import kokkos.core;
import kokkos.core_impl;
#else
#include <Kokkos_Core.hpp>
#endif
namespace {
struct SomeTag {};
struct FunctorFor {
KOKKOS_FUNCTION
void operator()(
Kokkos::TeamPolicy<TEST_EXECSPACE>::member_type const&) const {}
KOKKOS_FUNCTION
void operator()(
SomeTag, Kokkos::TeamPolicy<TEST_EXECSPACE>::member_type const&) const {}
};
template <typename Policy>
void test_run_time_parameters() {
int league_size = 131;
using ExecutionSpace = typename Policy::execution_space;
using ParallelTag = Kokkos::ParallelForTag;
int team_size =
4 < ExecutionSpace().concurrency() ? 4 : ExecutionSpace().concurrency();
#ifdef KOKKOS_ENABLE_HPX
team_size = 1;
#endif
#ifdef KOKKOS_ENABLE_OPENMPTARGET
if (std::is_same<ExecutionSpace, Kokkos::Experimental::OpenMPTarget>::value)
team_size = 32;
#endif
int chunk_size = 4;
int per_team_scratch = 1024;
int per_thread_scratch = 16;
int scratch_size = per_team_scratch + per_thread_scratch * team_size;
Policy p1(league_size, team_size);
ASSERT_EQ(p1.league_size(), league_size);
ASSERT_EQ(p1.team_size(), team_size);
ASSERT_GT(p1.chunk_size(), 0);
ASSERT_EQ(p1.scratch_size(0), 0u);
ASSERT_GT(p1.team_size_max(FunctorFor(), ParallelTag()), 0);
ASSERT_GT(p1.team_size_recommended(FunctorFor(), ParallelTag()), 0);
Policy p2 = p1.set_chunk_size(chunk_size);
ASSERT_EQ(p1.league_size(), league_size);
ASSERT_EQ(p1.team_size(), team_size);
ASSERT_EQ(p1.chunk_size(), chunk_size);
ASSERT_EQ(p1.scratch_size(0), 0u);
ASSERT_EQ(p2.league_size(), league_size);
ASSERT_EQ(p2.team_size(), team_size);
ASSERT_EQ(p2.chunk_size(), chunk_size);
ASSERT_EQ(p2.scratch_size(0), 0u);
Policy p3 = p2.set_scratch_size(0, Kokkos::PerTeam(per_team_scratch));
ASSERT_EQ(p2.league_size(), league_size);
ASSERT_EQ(p2.team_size(), team_size);
ASSERT_EQ(p2.chunk_size(), chunk_size);
ASSERT_EQ(p2.scratch_size(0), size_t(per_team_scratch));
ASSERT_EQ(p3.league_size(), league_size);
ASSERT_EQ(p3.team_size(), team_size);
ASSERT_EQ(p3.chunk_size(), chunk_size);
ASSERT_EQ(p3.scratch_size(0), size_t(per_team_scratch));
Policy p4 = p2.set_scratch_size(0, Kokkos::PerThread(per_thread_scratch));
ASSERT_EQ(p2.league_size(), league_size);
ASSERT_EQ(p2.team_size(), team_size);
ASSERT_EQ(p2.chunk_size(), chunk_size);
ASSERT_EQ(p2.scratch_size(0), size_t(scratch_size));
ASSERT_EQ(p4.league_size(), league_size);
ASSERT_EQ(p4.team_size(), team_size);
ASSERT_EQ(p4.chunk_size(), chunk_size);
ASSERT_EQ(p4.scratch_size(0), size_t(scratch_size));
Policy p5 = p2.set_scratch_size(0, Kokkos::PerThread(per_thread_scratch),
Kokkos::PerTeam(per_team_scratch));
ASSERT_EQ(p2.league_size(), league_size);
ASSERT_EQ(p2.team_size(), team_size);
ASSERT_EQ(p2.chunk_size(), chunk_size);
ASSERT_EQ(p2.scratch_size(0), size_t(scratch_size));
ASSERT_EQ(p5.league_size(), league_size);
ASSERT_EQ(p5.team_size(), team_size);
ASSERT_EQ(p5.chunk_size(), chunk_size);
ASSERT_EQ(p5.scratch_size(0), size_t(scratch_size));
Policy p6 = p2.set_scratch_size(0, Kokkos::PerTeam(per_team_scratch),
Kokkos::PerThread(per_thread_scratch));
ASSERT_EQ(p2.league_size(), league_size);
ASSERT_EQ(p2.team_size(), team_size);
ASSERT_EQ(p2.chunk_size(), chunk_size);
ASSERT_EQ(p2.scratch_size(0), size_t(scratch_size));
ASSERT_EQ(p6.league_size(), league_size);
ASSERT_EQ(p6.team_size(), team_size);
ASSERT_EQ(p6.chunk_size(), chunk_size);
ASSERT_EQ(p6.scratch_size(0), size_t(scratch_size));
Policy p7 = p3.set_scratch_size(0, Kokkos::PerTeam(per_team_scratch),
Kokkos::PerThread(per_thread_scratch));
ASSERT_EQ(p3.league_size(), league_size);
ASSERT_EQ(p3.team_size(), team_size);
ASSERT_EQ(p3.chunk_size(), chunk_size);
ASSERT_EQ(p3.scratch_size(0), size_t(scratch_size));
ASSERT_EQ(p7.league_size(), league_size);
ASSERT_EQ(p7.team_size(), team_size);
ASSERT_EQ(p7.chunk_size(), chunk_size);
ASSERT_EQ(p7.scratch_size(0), size_t(scratch_size));
Policy p8; // default constructed
ASSERT_EQ(p8.league_size(), 0);
ASSERT_EQ(p8.scratch_size(0), 0u);
ASSERT_GT(p8.team_size_max(FunctorFor(), ParallelTag()), 0);
ASSERT_GT(p8.team_size_recommended(FunctorFor(), ParallelTag()), 0);
p8 = p3; // call assignment operator
ASSERT_EQ(p3.league_size(), league_size);
ASSERT_EQ(p3.team_size(), team_size);
ASSERT_EQ(p3.chunk_size(), chunk_size);
ASSERT_EQ(p3.scratch_size(0), size_t(scratch_size));
ASSERT_EQ(p8.league_size(), league_size);
ASSERT_EQ(p8.team_size(), team_size);
ASSERT_EQ(p8.chunk_size(), chunk_size);
ASSERT_EQ(p8.scratch_size(0), size_t(scratch_size));
Policy p9(league_size, Kokkos::AUTO);
ASSERT_EQ(p9.league_size(), league_size);
ASSERT_GT(p9.team_size_max(FunctorFor(), ParallelTag()), 0);
ASSERT_GT(p9.team_size_recommended(FunctorFor(), ParallelTag()), 0);
Policy p10(league_size, team_size, Kokkos::AUTO);
ASSERT_EQ(p10.league_size(), league_size);
ASSERT_EQ(p10.team_size(), team_size);
ASSERT_GT(p10.team_size_max(FunctorFor(), ParallelTag()), 0);
ASSERT_GT(p10.team_size_recommended(FunctorFor(), ParallelTag()), 0);
Policy p11(league_size, Kokkos::AUTO, Kokkos::AUTO);
ASSERT_EQ(p11.league_size(), league_size);
ASSERT_GT(p11.team_size_max(FunctorFor(), ParallelTag()), 0);
ASSERT_GT(p11.team_size_recommended(FunctorFor(), ParallelTag()), 0);
}
TEST(TEST_CATEGORY, team_policy_runtime_parameters) {
using TestExecSpace = TEST_EXECSPACE;
using DynamicSchedule = Kokkos::Schedule<Kokkos::Dynamic>;
using LongIndex = Kokkos::IndexType<long>;
// clang-format off
test_run_time_parameters<Kokkos::TeamPolicy<TestExecSpace >>();
test_run_time_parameters<Kokkos::TeamPolicy<TestExecSpace, DynamicSchedule, LongIndex >>();
test_run_time_parameters<Kokkos::TeamPolicy<LongIndex, TestExecSpace, DynamicSchedule >>();
test_run_time_parameters<Kokkos::TeamPolicy<DynamicSchedule, LongIndex, TestExecSpace, SomeTag>>();
// clang-format on
}
// The execution space is defaulted if not given to the constructor.
TEST(TEST_CATEGORY, team_policy_default_space) {
using policy_t = Kokkos::TeamPolicy<TEST_EXECSPACE>;
policy_t defaulted(42, Kokkos::AUTO);
ASSERT_EQ(defaulted.space(), TEST_EXECSPACE{});
}
// The execution space instance can be updated.
TEST(TEST_CATEGORY, team_policy_impl_set_space) {
using policy_t = Kokkos::TeamPolicy<TEST_EXECSPACE>;
const auto [exec_old, exec_new] =
Kokkos::Experimental::partition_space(TEST_EXECSPACE{}, 1, 1);
const policy_t policy_old(exec_old, 42, Kokkos::AUTO);
ASSERT_EQ(policy_old.space(), exec_old);
const policy_t policy_new(Kokkos::Impl::PolicyUpdate{}, policy_old, exec_new);
ASSERT_EQ(policy_new.space(), exec_new);
ASSERT_EQ(policy_new.league_size(), 42);
}
} // namespace
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