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#include <thrust/execution_policy.h>
#include <thrust/uninitialized_copy.h>
#include <unittest/unittest.h>
#ifdef THRUST_TEST_DEVICE_SIDE
template <typename ExecutionPolicy, typename Iterator1, typename Iterator2>
__global__ void uninitialized_copy_kernel(ExecutionPolicy exec, Iterator1 first, Iterator1 last, Iterator2 result)
{
thrust::uninitialized_copy(exec, first, last, result);
}
template <typename ExecutionPolicy>
void TestUninitializedCopyDevice(ExecutionPolicy exec)
{
typedef thrust::device_vector<int> Vector;
Vector v1(5);
v1[0] = 0;
v1[1] = 1;
v1[2] = 2;
v1[3] = 3;
v1[4] = 4;
// copy to Vector
Vector v2(5);
uninitialized_copy_kernel<<<1, 1>>>(exec, v1.begin(), v1.end(), v2.begin());
cudaError_t const err = cudaDeviceSynchronize();
ASSERT_EQUAL(cudaSuccess, err);
ASSERT_EQUAL(v2[0], 0);
ASSERT_EQUAL(v2[1], 1);
ASSERT_EQUAL(v2[2], 2);
ASSERT_EQUAL(v2[3], 3);
ASSERT_EQUAL(v2[4], 4);
}
void TestUninitializedCopyDeviceSeq()
{
TestUninitializedCopyDevice(thrust::seq);
}
DECLARE_UNITTEST(TestUninitializedCopyDeviceSeq);
void TestUninitializedCopyDeviceDevice()
{
TestUninitializedCopyDevice(thrust::device);
}
DECLARE_UNITTEST(TestUninitializedCopyDeviceDevice);
#endif
void TestUninitializedCopyCudaStreams()
{
typedef thrust::device_vector<int> Vector;
Vector v1(5);
v1[0] = 0;
v1[1] = 1;
v1[2] = 2;
v1[3] = 3;
v1[4] = 4;
// copy to Vector
Vector v2(5);
cudaStream_t s;
cudaStreamCreate(&s);
thrust::uninitialized_copy(thrust::cuda::par.on(s), v1.begin(), v1.end(), v2.begin());
cudaStreamSynchronize(s);
ASSERT_EQUAL(v2[0], 0);
ASSERT_EQUAL(v2[1], 1);
ASSERT_EQUAL(v2[2], 2);
ASSERT_EQUAL(v2[3], 3);
ASSERT_EQUAL(v2[4], 4);
cudaStreamDestroy(s);
}
DECLARE_UNITTEST(TestUninitializedCopyCudaStreams);
#ifdef THRUST_TEST_DEVICE_SIDE
template <typename ExecutionPolicy, typename Iterator1, typename Size, typename Iterator2>
__global__ void uninitialized_copy_n_kernel(ExecutionPolicy exec, Iterator1 first, Size n, Iterator2 result)
{
thrust::uninitialized_copy_n(exec, first, n, result);
}
template <typename ExecutionPolicy>
void TestUninitializedCopyNDevice(ExecutionPolicy exec)
{
typedef thrust::device_vector<int> Vector;
Vector v1(5);
v1[0] = 0;
v1[1] = 1;
v1[2] = 2;
v1[3] = 3;
v1[4] = 4;
// copy to Vector
Vector v2(5);
uninitialized_copy_n_kernel<<<1, 1>>>(exec, v1.begin(), v1.size(), v2.begin());
cudaError_t const err = cudaDeviceSynchronize();
ASSERT_EQUAL(cudaSuccess, err);
ASSERT_EQUAL(v2[0], 0);
ASSERT_EQUAL(v2[1], 1);
ASSERT_EQUAL(v2[2], 2);
ASSERT_EQUAL(v2[3], 3);
ASSERT_EQUAL(v2[4], 4);
}
void TestUninitializedCopyNDeviceSeq()
{
TestUninitializedCopyNDevice(thrust::seq);
}
DECLARE_UNITTEST(TestUninitializedCopyNDeviceSeq);
void TestUninitializedCopyNDeviceDevice()
{
TestUninitializedCopyNDevice(thrust::device);
}
DECLARE_UNITTEST(TestUninitializedCopyNDeviceDevice);
#endif
void TestUninitializedCopyNCudaStreams()
{
typedef thrust::device_vector<int> Vector;
Vector v1(5);
v1[0] = 0;
v1[1] = 1;
v1[2] = 2;
v1[3] = 3;
v1[4] = 4;
// copy to Vector
Vector v2(5);
cudaStream_t s;
cudaStreamCreate(&s);
thrust::uninitialized_copy_n(thrust::cuda::par.on(s), v1.begin(), v1.size(), v2.begin());
cudaStreamSynchronize(s);
ASSERT_EQUAL(v2[0], 0);
ASSERT_EQUAL(v2[1], 1);
ASSERT_EQUAL(v2[2], 2);
ASSERT_EQUAL(v2[3], 3);
ASSERT_EQUAL(v2[4], 4);
cudaStreamDestroy(s);
}
DECLARE_UNITTEST(TestUninitializedCopyNCudaStreams);
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