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#include <thrust/execution_policy.h>
#include <thrust/sequence.h>
#include <unittest/unittest.h>
#ifdef THRUST_TEST_DEVICE_SIDE
template <typename ExecutionPolicy, typename Iterator>
__global__ void sequence_kernel(ExecutionPolicy exec, Iterator first, Iterator last)
{
thrust::sequence(exec, first, last);
}
template <typename ExecutionPolicy, typename Iterator, typename T>
__global__ void sequence_kernel(ExecutionPolicy exec, Iterator first, Iterator last, T init)
{
thrust::sequence(exec, first, last, init);
}
template <typename ExecutionPolicy, typename Iterator, typename T>
__global__ void sequence_kernel(ExecutionPolicy exec, Iterator first, Iterator last, T init, T step)
{
thrust::sequence(exec, first, last, init, step);
}
template <typename ExecutionPolicy>
void TestSequenceDevice(ExecutionPolicy exec)
{
thrust::device_vector<int> v(5);
sequence_kernel<<<1, 1>>>(exec, v.begin(), v.end());
{
cudaError_t const err = cudaDeviceSynchronize();
ASSERT_EQUAL(cudaSuccess, err);
}
ASSERT_EQUAL(v[0], 0);
ASSERT_EQUAL(v[1], 1);
ASSERT_EQUAL(v[2], 2);
ASSERT_EQUAL(v[3], 3);
ASSERT_EQUAL(v[4], 4);
sequence_kernel<<<1, 1>>>(exec, v.begin(), v.end(), 10);
{
cudaError_t const err = cudaDeviceSynchronize();
ASSERT_EQUAL(cudaSuccess, err);
}
ASSERT_EQUAL(v[0], 10);
ASSERT_EQUAL(v[1], 11);
ASSERT_EQUAL(v[2], 12);
ASSERT_EQUAL(v[3], 13);
ASSERT_EQUAL(v[4], 14);
sequence_kernel<<<1, 1>>>(exec, v.begin(), v.end(), 10, 2);
{
cudaError_t const err = cudaDeviceSynchronize();
ASSERT_EQUAL(cudaSuccess, err);
}
ASSERT_EQUAL(v[0], 10);
ASSERT_EQUAL(v[1], 12);
ASSERT_EQUAL(v[2], 14);
ASSERT_EQUAL(v[3], 16);
ASSERT_EQUAL(v[4], 18);
}
void TestSequenceDeviceSeq()
{
TestSequenceDevice(thrust::seq);
}
DECLARE_UNITTEST(TestSequenceDeviceSeq);
void TestSequenceDeviceDevice()
{
TestSequenceDevice(thrust::device);
}
DECLARE_UNITTEST(TestSequenceDeviceDevice);
#endif
void TestSequenceCudaStreams()
{
typedef thrust::device_vector<int> Vector;
Vector v(5);
cudaStream_t s;
cudaStreamCreate(&s);
thrust::sequence(thrust::cuda::par.on(s), v.begin(), v.end());
cudaStreamSynchronize(s);
ASSERT_EQUAL(v[0], 0);
ASSERT_EQUAL(v[1], 1);
ASSERT_EQUAL(v[2], 2);
ASSERT_EQUAL(v[3], 3);
ASSERT_EQUAL(v[4], 4);
thrust::sequence(thrust::cuda::par.on(s), v.begin(), v.end(), 10);
cudaStreamSynchronize(s);
ASSERT_EQUAL(v[0], 10);
ASSERT_EQUAL(v[1], 11);
ASSERT_EQUAL(v[2], 12);
ASSERT_EQUAL(v[3], 13);
ASSERT_EQUAL(v[4], 14);
thrust::sequence(thrust::cuda::par.on(s), v.begin(), v.end(), 10, 2);
cudaStreamSynchronize(s);
ASSERT_EQUAL(v[0], 10);
ASSERT_EQUAL(v[1], 12);
ASSERT_EQUAL(v[2], 14);
ASSERT_EQUAL(v[3], 16);
ASSERT_EQUAL(v[4], 18);
cudaStreamDestroy(s);
}
DECLARE_UNITTEST(TestSequenceCudaStreams);
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