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#include <unittest/unittest.h>
#include <thrust/unique.h>
#include <thrust/functional.h>
#include <thrust/execution_policy.h>
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 Vector>
void initialize_keys(Vector& keys)
{
keys.resize(9);
keys[0] = 11;
keys[1] = 11;
keys[2] = 21;
keys[3] = 20;
keys[4] = 21;
keys[5] = 21;
keys[6] = 21;
keys[7] = 37;
keys[8] = 37;
}
template<typename Vector>
void initialize_values(Vector& values)
{
values.resize(9);
values[0] = 0;
values[1] = 1;
values[2] = 2;
values[3] = 3;
values[4] = 4;
values[5] = 5;
values[6] = 6;
values[7] = 7;
values[8] = 8;
}
template<typename ExecutionPolicy, typename Iterator1, typename Iterator2, typename Iterator3>
__global__
void unique_by_key_kernel(ExecutionPolicy exec, Iterator1 keys_first, Iterator1 keys_last, Iterator2 values_first, Iterator3 result)
{
*result = thrust::unique_by_key(exec, keys_first, keys_last, values_first);
}
template<typename ExecutionPolicy, typename Iterator1, typename Iterator2, typename BinaryPredicate, typename Iterator3>
__global__
void unique_by_key_kernel(ExecutionPolicy exec, Iterator1 keys_first, Iterator1 keys_last, Iterator2 values_first, BinaryPredicate pred, Iterator3 result)
{
*result = thrust::unique_by_key(exec, keys_first, keys_last, values_first, pred);
}
template<typename ExecutionPolicy>
void TestUniqueByKeyDevice(ExecutionPolicy exec)
{
typedef thrust::device_vector<int> Vector;
typedef Vector::value_type T;
Vector keys;
Vector values;
typedef thrust::pair<typename Vector::iterator, typename Vector::iterator> iter_pair;
thrust::device_vector<iter_pair> new_last_vec(1);
iter_pair new_last;
// basic test
initialize_keys(keys); initialize_values(values);
unique_by_key_kernel<<<1,1>>>(exec, keys.begin(), keys.end(), values.begin(), new_last_vec.begin());
{
cudaError_t const err = cudaDeviceSynchronize();
ASSERT_EQUAL(cudaSuccess, err);
}
new_last = new_last_vec[0];
ASSERT_EQUAL(new_last.first - keys.begin(), 5);
ASSERT_EQUAL(new_last.second - values.begin(), 5);
ASSERT_EQUAL(keys[0], 11);
ASSERT_EQUAL(keys[1], 21);
ASSERT_EQUAL(keys[2], 20);
ASSERT_EQUAL(keys[3], 21);
ASSERT_EQUAL(keys[4], 37);
ASSERT_EQUAL(values[0], 0);
ASSERT_EQUAL(values[1], 2);
ASSERT_EQUAL(values[2], 3);
ASSERT_EQUAL(values[3], 4);
ASSERT_EQUAL(values[4], 7);
// test BinaryPredicate
initialize_keys(keys); initialize_values(values);
unique_by_key_kernel<<<1,1>>>(exec, keys.begin(), keys.end(), values.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.first - keys.begin(), 3);
ASSERT_EQUAL(new_last.second - values.begin(), 3);
ASSERT_EQUAL(keys[0], 11);
ASSERT_EQUAL(keys[1], 21);
ASSERT_EQUAL(keys[2], 37);
ASSERT_EQUAL(values[0], 0);
ASSERT_EQUAL(values[1], 2);
ASSERT_EQUAL(values[2], 7);
}
void TestUniqueByKeyDeviceSeq()
{
TestUniqueByKeyDevice(thrust::seq);
}
DECLARE_UNITTEST(TestUniqueByKeyDeviceSeq);
void TestUniqueByKeyDeviceDevice()
{
TestUniqueByKeyDevice(thrust::device);
}
DECLARE_UNITTEST(TestUniqueByKeyDeviceDevice);
void TestUniqueByKeyCudaStreams()
{
typedef thrust::device_vector<int> Vector;
typedef Vector::value_type T;
Vector keys;
Vector values;
typedef thrust::pair<Vector::iterator, Vector::iterator> iter_pair;
iter_pair new_last;
// basic test
initialize_keys(keys); initialize_values(values);
cudaStream_t s;
cudaStreamCreate(&s);
new_last = thrust::unique_by_key(thrust::cuda::par.on(s), keys.begin(), keys.end(), values.begin());
cudaStreamSynchronize(s);
ASSERT_EQUAL(new_last.first - keys.begin(), 5);
ASSERT_EQUAL(new_last.second - values.begin(), 5);
ASSERT_EQUAL(keys[0], 11);
ASSERT_EQUAL(keys[1], 21);
ASSERT_EQUAL(keys[2], 20);
ASSERT_EQUAL(keys[3], 21);
ASSERT_EQUAL(keys[4], 37);
ASSERT_EQUAL(values[0], 0);
ASSERT_EQUAL(values[1], 2);
ASSERT_EQUAL(values[2], 3);
ASSERT_EQUAL(values[3], 4);
ASSERT_EQUAL(values[4], 7);
// test BinaryPredicate
initialize_keys(keys); initialize_values(values);
new_last = thrust::unique_by_key(thrust::cuda::par.on(s), keys.begin(), keys.end(), values.begin(), is_equal_div_10_unique<T>());
ASSERT_EQUAL(new_last.first - keys.begin(), 3);
ASSERT_EQUAL(new_last.second - values.begin(), 3);
ASSERT_EQUAL(keys[0], 11);
ASSERT_EQUAL(keys[1], 21);
ASSERT_EQUAL(keys[2], 37);
ASSERT_EQUAL(values[0], 0);
ASSERT_EQUAL(values[1], 2);
ASSERT_EQUAL(values[2], 7);
cudaStreamDestroy(s);
}
DECLARE_UNITTEST(TestUniqueByKeyCudaStreams);
template<typename ExecutionPolicy, typename Iterator1, typename Iterator2, typename Iterator3, typename Iterator4, typename Iterator5>
__global__
void unique_by_key_copy_kernel(ExecutionPolicy exec, Iterator1 keys_first, Iterator1 keys_last, Iterator2 values_first, Iterator3 keys_result, Iterator4 values_result, Iterator5 result)
{
*result = thrust::unique_by_key_copy(exec, keys_first, keys_last, values_first, keys_result, values_result);
}
template<typename ExecutionPolicy, typename Iterator1, typename Iterator2, typename Iterator3, typename Iterator4, typename BinaryPredicate, typename Iterator5>
__global__
void unique_by_key_copy_kernel(ExecutionPolicy exec, Iterator1 keys_first, Iterator1 keys_last, Iterator2 values_first, Iterator3 keys_result, Iterator4 values_result, BinaryPredicate pred, Iterator5 result)
{
*result = thrust::unique_by_key_copy(exec, keys_first, keys_last, values_first, keys_result, values_result, pred);
}
template<typename ExecutionPolicy>
void TestUniqueCopyByKeyDevice(ExecutionPolicy exec)
{
typedef thrust::device_vector<int> Vector;
typedef Vector::value_type T;
Vector keys;
Vector values;
typedef thrust::pair<typename Vector::iterator, typename Vector::iterator> iter_pair;
thrust::device_vector<iter_pair> new_last_vec(1);
iter_pair new_last;
// basic test
initialize_keys(keys); initialize_values(values);
Vector output_keys(keys.size());
Vector output_values(values.size());
unique_by_key_copy_kernel<<<1,1>>>(exec, keys.begin(), keys.end(), values.begin(), output_keys.begin(), output_values.begin(), new_last_vec.begin());
{
cudaError_t const err = cudaDeviceSynchronize();
ASSERT_EQUAL(cudaSuccess, err);
}
new_last = new_last_vec[0];
ASSERT_EQUAL(new_last.first - output_keys.begin(), 5);
ASSERT_EQUAL(new_last.second - output_values.begin(), 5);
ASSERT_EQUAL(output_keys[0], 11);
ASSERT_EQUAL(output_keys[1], 21);
ASSERT_EQUAL(output_keys[2], 20);
ASSERT_EQUAL(output_keys[3], 21);
ASSERT_EQUAL(output_keys[4], 37);
ASSERT_EQUAL(output_values[0], 0);
ASSERT_EQUAL(output_values[1], 2);
ASSERT_EQUAL(output_values[2], 3);
ASSERT_EQUAL(output_values[3], 4);
ASSERT_EQUAL(output_values[4], 7);
// test BinaryPredicate
initialize_keys(keys); initialize_values(values);
unique_by_key_copy_kernel<<<1,1>>>(exec, keys.begin(), keys.end(), values.begin(), output_keys.begin(), output_values.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.first - output_keys.begin(), 3);
ASSERT_EQUAL(new_last.second - output_values.begin(), 3);
ASSERT_EQUAL(output_keys[0], 11);
ASSERT_EQUAL(output_keys[1], 21);
ASSERT_EQUAL(output_keys[2], 37);
ASSERT_EQUAL(output_values[0], 0);
ASSERT_EQUAL(output_values[1], 2);
ASSERT_EQUAL(output_values[2], 7);
}
void TestUniqueCopyByKeyDeviceSeq()
{
TestUniqueCopyByKeyDevice(thrust::seq);
}
DECLARE_UNITTEST(TestUniqueCopyByKeyDeviceSeq);
void TestUniqueCopyByKeyDeviceDevice()
{
TestUniqueCopyByKeyDevice(thrust::device);
}
DECLARE_UNITTEST(TestUniqueCopyByKeyDeviceDevice);
void TestUniqueCopyByKeyCudaStreams()
{
typedef thrust::device_vector<int> Vector;
typedef Vector::value_type T;
Vector keys;
Vector values;
typedef thrust::pair<Vector::iterator, Vector::iterator> iter_pair;
iter_pair new_last;
// basic test
initialize_keys(keys); initialize_values(values);
Vector output_keys(keys.size());
Vector output_values(values.size());
cudaStream_t s;
cudaStreamCreate(&s);
new_last = thrust::unique_by_key_copy(thrust::cuda::par.on(s), keys.begin(), keys.end(), values.begin(), output_keys.begin(), output_values.begin());
cudaStreamSynchronize(s);
ASSERT_EQUAL(new_last.first - output_keys.begin(), 5);
ASSERT_EQUAL(new_last.second - output_values.begin(), 5);
ASSERT_EQUAL(output_keys[0], 11);
ASSERT_EQUAL(output_keys[1], 21);
ASSERT_EQUAL(output_keys[2], 20);
ASSERT_EQUAL(output_keys[3], 21);
ASSERT_EQUAL(output_keys[4], 37);
ASSERT_EQUAL(output_values[0], 0);
ASSERT_EQUAL(output_values[1], 2);
ASSERT_EQUAL(output_values[2], 3);
ASSERT_EQUAL(output_values[3], 4);
ASSERT_EQUAL(output_values[4], 7);
// test BinaryPredicate
initialize_keys(keys); initialize_values(values);
new_last = thrust::unique_by_key_copy(thrust::cuda::par.on(s), keys.begin(), keys.end(), values.begin(), output_keys.begin(), output_values.begin(), is_equal_div_10_unique<T>());
cudaStreamSynchronize(s);
ASSERT_EQUAL(new_last.first - output_keys.begin(), 3);
ASSERT_EQUAL(new_last.second - output_values.begin(), 3);
ASSERT_EQUAL(output_keys[0], 11);
ASSERT_EQUAL(output_keys[1], 21);
ASSERT_EQUAL(output_keys[2], 37);
ASSERT_EQUAL(output_values[0], 0);
ASSERT_EQUAL(output_values[1], 2);
ASSERT_EQUAL(output_values[2], 7);
cudaStreamDestroy(s);
}
DECLARE_UNITTEST(TestUniqueCopyByKeyCudaStreams);
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