1 /*
2 //@HEADER
3 // ************************************************************************
4 //
5 // Kokkos v. 3.0
6 // Copyright (2020) National Technology & Engineering
7 // Solutions of Sandia, LLC (NTESS).
8 //
9 // Under the terms of Contract DE-NA0003525 with NTESS,
10 // the U.S. Government retains certain rights in this software.
11 //
12 // Redistribution and use in source and binary forms, with or without
13 // modification, are permitted provided that the following conditions are
14 // met:
15 //
16 // 1. Redistributions of source code must retain the above copyright
17 // notice, this list of conditions and the following disclaimer.
18 //
19 // 2. Redistributions in binary form must reproduce the above copyright
20 // notice, this list of conditions and the following disclaimer in the
21 // documentation and/or other materials provided with the distribution.
22 //
23 // 3. Neither the name of the Corporation nor the names of the
24 // contributors may be used to endorse or promote products derived from
25 // this software without specific prior written permission.
26 //
27 // THIS SOFTWARE IS PROVIDED BY NTESS "AS IS" AND ANY
28 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NTESS OR THE
31 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
32 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
33 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
34 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
35 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
36 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
37 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 //
39 // Questions? Contact Christian R. Trott (crtrott@sandia.gov)
40 //
41 // ************************************************************************
42 //@HEADER
43 */
44
45 #include <Kokkos_Core.hpp>
46 #include <TestCuda_Category.hpp>
47
48 #include <array>
49
50 namespace Test {
51
offset(int * p)52 __global__ void offset(int* p) {
53 int idx = blockIdx.x * blockDim.x + threadIdx.x;
54 if (idx < 100) {
55 p[idx] += idx;
56 }
57 }
58
59 // Test whether allocations survive Kokkos initialize/finalize if done via Raw
60 // Cuda.
TEST(cuda,raw_cuda_interop)61 TEST(cuda, raw_cuda_interop) {
62 int* p;
63 CUDA_SAFE_CALL(cudaMalloc(&p, sizeof(int) * 100));
64 Kokkos::InitArguments arguments{-1, -1, -1, false};
65 Kokkos::initialize(arguments);
66
67 Kokkos::View<int*, Kokkos::MemoryTraits<Kokkos::Unmanaged>> v(p, 100);
68 Kokkos::deep_copy(v, 5);
69
70 Kokkos::finalize();
71
72 offset<<<100, 64>>>(p);
73 CUDA_SAFE_CALL(cudaDeviceSynchronize());
74
75 std::array<int, 100> h_p;
76 cudaMemcpy(h_p.data(), p, sizeof(int) * 100, cudaMemcpyDefault);
77 CUDA_SAFE_CALL(cudaDeviceSynchronize());
78 int64_t sum = 0;
79 int64_t sum_expect = 0;
80 for (int i = 0; i < 100; i++) {
81 sum += h_p[i];
82 sum_expect += 5 + i;
83 }
84
85 ASSERT_EQ(sum, sum_expect);
86 CUDA_SAFE_CALL(cudaFree(p));
87 }
88 } // namespace Test
89