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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 <Test_InterOp_Streams.hpp>
namespace {
void test_policies(TEST_EXECSPACE exec0, Kokkos::View<int *, TEST_EXECSPACE> v0,
TEST_EXECSPACE exec, Kokkos::View<int *, TEST_EXECSPACE> v) {
using MemorySpace = typename TEST_EXECSPACE::memory_space;
exec.fence();
exec0.fence();
Kokkos::deep_copy(exec, v, 5);
Kokkos::deep_copy(exec0, v0, 5);
Kokkos::deep_copy(v, v0);
int sum;
int sum0;
Kokkos::parallel_for("Test::Range_0",
Kokkos::RangePolicy<TEST_EXECSPACE>(exec0, 0, 100),
Test::FunctorRange<MemorySpace>(v0));
Kokkos::parallel_for("Test::Range",
Kokkos::RangePolicy<TEST_EXECSPACE>(exec, 0, 100),
Test::FunctorRange<MemorySpace>(v));
exec.fence();
exec0.fence();
Kokkos::parallel_reduce(
"Test::RangeReduce_0",
Kokkos::RangePolicy<TEST_EXECSPACE, Kokkos::LaunchBounds<128, 2>>(exec0,
0, 100),
Test::FunctorRangeReduce<MemorySpace>(v0), sum0);
Kokkos::parallel_reduce(
"Test::RangeReduce",
Kokkos::RangePolicy<TEST_EXECSPACE, Kokkos::LaunchBounds<128, 2>>(exec, 0,
100),
Test::FunctorRangeReduce<MemorySpace>(v), sum);
ASSERT_EQ(600, sum0);
ASSERT_EQ(600, sum);
Kokkos::parallel_for("Test::MDRange_0",
Kokkos::MDRangePolicy<TEST_EXECSPACE, Kokkos::Rank<2>>(
exec0, {0, 0}, {10, 10}),
Test::FunctorMDRange<MemorySpace>(v0));
Kokkos::parallel_for("Test::MDRange",
Kokkos::MDRangePolicy<TEST_EXECSPACE, Kokkos::Rank<2>>(
exec, {0, 0}, {10, 10}),
Test::FunctorMDRange<MemorySpace>(v));
Kokkos::parallel_reduce("Test::MDRangeReduce_0",
Kokkos::MDRangePolicy<TEST_EXECSPACE, Kokkos::Rank<2>,
Kokkos::LaunchBounds<128, 2>>(
exec0, {0, 0}, {10, 10}),
Test::FunctorMDRangeReduce<MemorySpace>(v0), sum0);
Kokkos::parallel_reduce("Test::MDRangeReduce",
Kokkos::MDRangePolicy<TEST_EXECSPACE, Kokkos::Rank<2>,
Kokkos::LaunchBounds<128, 2>>(
exec, {0, 0}, {10, 10}),
Test::FunctorMDRangeReduce<MemorySpace>(v), sum);
ASSERT_EQ(700, sum0);
ASSERT_EQ(700, sum);
Kokkos::parallel_for("Test::Team_0",
Kokkos::TeamPolicy<TEST_EXECSPACE>(exec0, 10, 10),
Test::FunctorTeam<MemorySpace, TEST_EXECSPACE>(v0));
Kokkos::parallel_for("Test::Team",
Kokkos::TeamPolicy<TEST_EXECSPACE>(exec, 10, 10),
Test::FunctorTeam<MemorySpace, TEST_EXECSPACE>(v));
Kokkos::parallel_reduce(
"Test::Team_0",
Kokkos::TeamPolicy<TEST_EXECSPACE, Kokkos::LaunchBounds<128, 2>>(exec0,
10, 10),
Test::FunctorTeamReduce<MemorySpace, TEST_EXECSPACE>(v0), sum0);
Kokkos::parallel_reduce(
"Test::Team",
Kokkos::TeamPolicy<TEST_EXECSPACE, Kokkos::LaunchBounds<128, 2>>(exec, 10,
10),
Test::FunctorTeamReduce<MemorySpace, TEST_EXECSPACE>(v), sum);
ASSERT_EQ(800, sum0);
ASSERT_EQ(800, sum);
}
struct ScratchFunctor {
int scratch_size;
int R;
ScratchFunctor(int scratch_size_, int R_)
: scratch_size(scratch_size_), R(R_) {}
KOKKOS_FUNCTION
void operator()(const Kokkos::TeamPolicy<TEST_EXECSPACE>::member_type &team,
int &error_accum) const {
Kokkos::View<int *, TEST_EXECSPACE::scratch_memory_space> scratch_mem(
team.team_scratch(1), scratch_size);
// Initialize scratch memory
Kokkos::parallel_for(Kokkos::TeamVectorRange(team, 0, scratch_size),
[&](int i) { scratch_mem(i) = 0; });
team.team_barrier();
// Increment each entry in scratch memory R times
for (int r = 0; r < R; ++r) {
Kokkos::parallel_for(Kokkos::TeamVectorRange(team, 0, scratch_size),
[&](int i) { scratch_mem(i) += 1; });
}
team.team_barrier();
// Check that each scratch entry has been incremented exactly R times
int team_error_accum;
auto R_loc = R; // avoid implicit capture of this
Kokkos::parallel_reduce(
Kokkos::TeamVectorRange(team, 0, scratch_size),
[&](int i, int &tsum) {
if (scratch_mem(i) != R_loc) {
tsum += 1;
}
},
team_error_accum);
Kokkos::single(Kokkos::PerTeam(team),
[&]() { error_accum += team_error_accum; });
}
};
void test_scratch(TEST_EXECSPACE exec0, TEST_EXECSPACE exec1) {
constexpr int N = 10;
constexpr int R = 1000;
constexpr int scratch_size = 100;
using ScratchType = Kokkos::View<int *, TEST_EXECSPACE::scratch_memory_space>;
// Test allocating and using scratch space
ScratchFunctor f(scratch_size, R);
auto policy0 =
Kokkos::TeamPolicy<TEST_EXECSPACE>(exec0, N, 10)
.set_scratch_size(
1, Kokkos::PerTeam(ScratchType::shmem_size(scratch_size)));
auto policy1 =
Kokkos::TeamPolicy<TEST_EXECSPACE>(exec1, N, 10)
.set_scratch_size(
1, Kokkos::PerTeam(ScratchType::shmem_size(scratch_size)));
int error0, error1;
Kokkos::parallel_reduce("test_scratch_device_0", policy0, f, error0);
Kokkos::parallel_reduce("test_scratch_device_1", policy1, f, error1);
ASSERT_EQ(error0, 0);
ASSERT_EQ(error1, 0);
// Request larger scratch size to trigger a realloc and test
const auto new_scratch_size = scratch_size + 10;
ScratchFunctor f_more_scratch(new_scratch_size, R);
auto policy0_more_scratch =
Kokkos::TeamPolicy<TEST_EXECSPACE>(exec0, N, 10)
.set_scratch_size(
1, Kokkos::PerTeam(ScratchType::shmem_size(new_scratch_size)));
auto policy1_more_scratch =
Kokkos::TeamPolicy<TEST_EXECSPACE>(exec1, N, 10)
.set_scratch_size(
1, Kokkos::PerTeam(ScratchType::shmem_size(new_scratch_size)));
Kokkos::parallel_reduce("test_realloc_scratch_device_0", policy0_more_scratch,
f_more_scratch, error0);
Kokkos::parallel_reduce("test_realloc_scratch_device_1", policy1_more_scratch,
f_more_scratch, error1);
ASSERT_EQ(error0, 0);
ASSERT_EQ(error1, 0);
}
#if defined(KOKKOS_ENABLE_CUDA) || defined(KOKKOS_ENABLE_HIP)
template <int N>
__global__ void accumulate_kernel(int *value) {
for (int i = 0; i < N; ++i) {
Kokkos::atomic_inc(value);
}
}
__global__ void copy_kernel(int *check, const int *value) {
check[0] = value[0];
}
#endif
} // namespace
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