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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 <TestCuda_Category.hpp>
#include <Test_InterOp_Streams.hpp>
namespace Test {
// Test Interoperability with Cuda Streams
TEST(cuda, raw_cuda_streams) {
// Make sure that we use the same device for all allocations
Kokkos::initialize();
cudaStream_t stream;
cudaStreamCreate(&stream);
int* p;
cudaMalloc(&p, sizeof(int) * 100);
using MemorySpace = typename TEST_EXECSPACE::memory_space;
{
TEST_EXECSPACE space0(stream);
Kokkos::View<int*, TEST_EXECSPACE> v(p, 100);
Kokkos::deep_copy(space0, v, 5);
int sum;
Kokkos::parallel_for("Test::cuda::raw_cuda_stream::Range",
Kokkos::RangePolicy<TEST_EXECSPACE>(space0, 0, 100),
FunctorRange<MemorySpace>(v));
Kokkos::parallel_reduce(
"Test::cuda::raw_cuda_stream::RangeReduce",
Kokkos::RangePolicy<TEST_EXECSPACE, Kokkos::LaunchBounds<128, 2>>(
space0, 0, 100),
FunctorRangeReduce<MemorySpace>(v), sum);
space0.fence();
ASSERT_EQ(600, sum);
Kokkos::parallel_for("Test::cuda::raw_cuda_stream::MDRange",
Kokkos::MDRangePolicy<TEST_EXECSPACE, Kokkos::Rank<2>>(
space0, {0, 0}, {10, 10}),
FunctorMDRange<MemorySpace>(v));
Kokkos::parallel_reduce(
"Test::cuda::raw_cuda_stream::MDRangeReduce",
Kokkos::MDRangePolicy<TEST_EXECSPACE, Kokkos::Rank<2>,
Kokkos::LaunchBounds<128, 2>>(space0, {0, 0},
{10, 10}),
FunctorMDRangeReduce<MemorySpace>(v), sum);
space0.fence();
ASSERT_EQ(700, sum);
Kokkos::parallel_for("Test::cuda::raw_cuda_stream::Team",
Kokkos::TeamPolicy<TEST_EXECSPACE>(space0, 10, 10),
FunctorTeam<MemorySpace, TEST_EXECSPACE>(v));
Kokkos::parallel_reduce(
"Test::cuda::raw_cuda_stream::Team",
Kokkos::TeamPolicy<TEST_EXECSPACE, Kokkos::LaunchBounds<128, 2>>(
space0, 10, 10),
FunctorTeamReduce<MemorySpace, TEST_EXECSPACE>(v), sum);
space0.fence();
ASSERT_EQ(800, sum);
}
Kokkos::finalize();
offset_streams<<<100, 64, 0, stream>>>(p);
KOKKOS_IMPL_CUDA_SAFE_CALL(cudaDeviceSynchronize());
cudaStreamDestroy(stream);
int h_p[100];
cudaMemcpy(h_p, p, sizeof(int) * 100, cudaMemcpyDefault);
KOKKOS_IMPL_CUDA_SAFE_CALL(cudaDeviceSynchronize());
int64_t sum = 0;
int64_t sum_expect = 0;
for (int i = 0; i < 100; i++) {
sum += h_p[i];
sum_expect += 8 + i;
}
ASSERT_EQ(sum, sum_expect);
}
} // namespace Test
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