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#include <unittest/unittest.h>
#include <thrust/unique.h>
#include <thrust/execution_policy.h>
template<typename ExecutionPolicy, typename Iterator1, typename Iterator2>
__global__
void unique_kernel(ExecutionPolicy exec, Iterator1 first, Iterator1 last, Iterator2 result)
{
*result = thrust::unique(exec, first, last);
}
template<typename ExecutionPolicy, typename Iterator1, typename BinaryPredicate, typename Iterator2>
__global__
void unique_kernel(ExecutionPolicy exec, Iterator1 first, Iterator1 last, BinaryPredicate pred, Iterator2 result)
{
*result = thrust::unique(exec, first, last, pred);
}
template<typename T>
struct is_equal_div_10_unique
{
__host__ __device__
bool operator()(const T x, const T& y) const { return ((int) x / 10) == ((int) y / 10); }
};
template<typename ExecutionPolicy>
void TestUniqueDevice(ExecutionPolicy exec)
{
typedef thrust::device_vector<int> Vector;
typedef Vector::value_type T;
Vector data(10);
data[0] = 11;
data[1] = 11;
data[2] = 12;
data[3] = 20;
data[4] = 29;
data[5] = 21;
data[6] = 21;
data[7] = 31;
data[8] = 31;
data[9] = 37;
thrust::device_vector<Vector::iterator> new_last_vec(1);
Vector::iterator new_last;
unique_kernel<<<1,1>>>(exec, data.begin(), data.end(), new_last_vec.begin());
{
cudaError_t const err = cudaDeviceSynchronize();
ASSERT_EQUAL(cudaSuccess, err);
}
new_last = new_last_vec[0];
ASSERT_EQUAL(new_last - data.begin(), 7);
ASSERT_EQUAL(data[0], 11);
ASSERT_EQUAL(data[1], 12);
ASSERT_EQUAL(data[2], 20);
ASSERT_EQUAL(data[3], 29);
ASSERT_EQUAL(data[4], 21);
ASSERT_EQUAL(data[5], 31);
ASSERT_EQUAL(data[6], 37);
unique_kernel<<<1,1>>>(exec, data.begin(), new_last, is_equal_div_10_unique<T>(), new_last_vec.begin());
{
cudaError_t const err = cudaDeviceSynchronize();
ASSERT_EQUAL(cudaSuccess, err);
}
new_last = new_last_vec[0];
ASSERT_EQUAL(new_last - data.begin(), 3);
ASSERT_EQUAL(data[0], 11);
ASSERT_EQUAL(data[1], 20);
ASSERT_EQUAL(data[2], 31);
}
void TestUniqueDeviceSeq()
{
TestUniqueDevice(thrust::seq);
}
DECLARE_UNITTEST(TestUniqueDeviceSeq);
void TestUniqueDeviceDevice()
{
TestUniqueDevice(thrust::device);
}
DECLARE_UNITTEST(TestUniqueDeviceDevice);
void TestUniqueCudaStreams()
{
typedef thrust::device_vector<int> Vector;
typedef Vector::value_type T;
Vector data(10);
data[0] = 11;
data[1] = 11;
data[2] = 12;
data[3] = 20;
data[4] = 29;
data[5] = 21;
data[6] = 21;
data[7] = 31;
data[8] = 31;
data[9] = 37;
thrust::device_vector<Vector::iterator> new_last_vec(1);
Vector::iterator new_last;
cudaStream_t s;
cudaStreamCreate(&s);
new_last = thrust::unique(thrust::cuda::par.on(s), data.begin(), data.end());
cudaStreamSynchronize(s);
ASSERT_EQUAL(new_last - data.begin(), 7);
ASSERT_EQUAL(data[0], 11);
ASSERT_EQUAL(data[1], 12);
ASSERT_EQUAL(data[2], 20);
ASSERT_EQUAL(data[3], 29);
ASSERT_EQUAL(data[4], 21);
ASSERT_EQUAL(data[5], 31);
ASSERT_EQUAL(data[6], 37);
new_last = thrust::unique(thrust::cuda::par.on(s), data.begin(), new_last, is_equal_div_10_unique<T>());
cudaStreamSynchronize(s);
ASSERT_EQUAL(new_last - data.begin(), 3);
ASSERT_EQUAL(data[0], 11);
ASSERT_EQUAL(data[1], 20);
ASSERT_EQUAL(data[2], 31);
cudaStreamDestroy(s);
}
DECLARE_UNITTEST(TestUniqueCudaStreams);
template<typename ExecutionPolicy, typename Iterator1, typename Iterator2, typename Iterator3>
__global__
void unique_copy_kernel(ExecutionPolicy exec, Iterator1 first, Iterator1 last, Iterator2 result1, Iterator3 result2)
{
*result2 = thrust::unique_copy(exec, first, last, result1);
}
template<typename ExecutionPolicy, typename Iterator1, typename Iterator2, typename BinaryPredicate, typename Iterator3>
__global__
void unique_copy_kernel(ExecutionPolicy exec, Iterator1 first, Iterator1 last, Iterator2 result1, BinaryPredicate pred, Iterator3 result2)
{
*result2 = thrust::unique_copy(exec, first, last, result1, pred);
}
template<typename ExecutionPolicy>
void TestUniqueCopyDevice(ExecutionPolicy exec)
{
typedef thrust::device_vector<int> Vector;
typedef Vector::value_type T;
Vector data(10);
data[0] = 11;
data[1] = 11;
data[2] = 12;
data[3] = 20;
data[4] = 29;
data[5] = 21;
data[6] = 21;
data[7] = 31;
data[8] = 31;
data[9] = 37;
Vector output(10, -1);
thrust::device_vector<Vector::iterator> new_last_vec(1);
Vector::iterator new_last;
unique_copy_kernel<<<1,1>>>(exec, data.begin(), data.end(), output.begin(), new_last_vec.begin());
{
cudaError_t const err = cudaDeviceSynchronize();
ASSERT_EQUAL(cudaSuccess, err);
}
new_last = new_last_vec[0];
ASSERT_EQUAL(new_last - output.begin(), 7);
ASSERT_EQUAL(output[0], 11);
ASSERT_EQUAL(output[1], 12);
ASSERT_EQUAL(output[2], 20);
ASSERT_EQUAL(output[3], 29);
ASSERT_EQUAL(output[4], 21);
ASSERT_EQUAL(output[5], 31);
ASSERT_EQUAL(output[6], 37);
unique_copy_kernel<<<1,1>>>(exec, output.begin(), new_last, data.begin(), is_equal_div_10_unique<T>(), new_last_vec.begin());
{
cudaError_t const err = cudaDeviceSynchronize();
ASSERT_EQUAL(cudaSuccess, err);
}
new_last = new_last_vec[0];
ASSERT_EQUAL(new_last - data.begin(), 3);
ASSERT_EQUAL(data[0], 11);
ASSERT_EQUAL(data[1], 20);
ASSERT_EQUAL(data[2], 31);
}
void TestUniqueCopyDeviceSeq()
{
TestUniqueCopyDevice(thrust::seq);
}
DECLARE_UNITTEST(TestUniqueCopyDeviceSeq);
void TestUniqueCopyDeviceDevice()
{
TestUniqueCopyDevice(thrust::device);
}
DECLARE_UNITTEST(TestUniqueCopyDeviceDevice);
void TestUniqueCopyCudaStreams()
{
typedef thrust::device_vector<int> Vector;
typedef Vector::value_type T;
Vector data(10);
data[0] = 11;
data[1] = 11;
data[2] = 12;
data[3] = 20;
data[4] = 29;
data[5] = 21;
data[6] = 21;
data[7] = 31;
data[8] = 31;
data[9] = 37;
Vector output(10, -1);
thrust::device_vector<Vector::iterator> new_last_vec(1);
Vector::iterator new_last;
cudaStream_t s;
cudaStreamCreate(&s);
new_last = thrust::unique_copy(thrust::cuda::par.on(s), data.begin(), data.end(), output.begin());
cudaStreamSynchronize(s);
ASSERT_EQUAL(new_last - output.begin(), 7);
ASSERT_EQUAL(output[0], 11);
ASSERT_EQUAL(output[1], 12);
ASSERT_EQUAL(output[2], 20);
ASSERT_EQUAL(output[3], 29);
ASSERT_EQUAL(output[4], 21);
ASSERT_EQUAL(output[5], 31);
ASSERT_EQUAL(output[6], 37);
new_last = thrust::unique_copy(thrust::cuda::par.on(s), output.begin(), new_last, data.begin(), is_equal_div_10_unique<T>());
cudaStreamSynchronize(s);
ASSERT_EQUAL(new_last - data.begin(), 3);
ASSERT_EQUAL(data[0], 11);
ASSERT_EQUAL(data[1], 20);
ASSERT_EQUAL(data[2], 31);
cudaStreamDestroy(s);
}
DECLARE_UNITTEST(TestUniqueCopyCudaStreams);
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