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/*
* Copyright© 2019 Advanced Micro Devices, Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <thrust/version.h>
#include <thrust/rocthrust_version.hpp>
#include <thrust/transform.h>
#include <thrust/execution_policy.h>
#include <thrust/device_vector.h>
#include <thrust/host_vector.h>
#include <iostream>
template<class T>
struct unary_transform
{
__device__ __host__ inline
constexpr T operator()(const T& a) const
{
return a + 5;
}
};
int main(void)
{
int major = THRUST_MAJOR_VERSION;
int minor = THRUST_MINOR_VERSION;
std::cout << "Thrust v" << major << "." << minor << std::endl;
major = ROCTHRUST_VERSION_MAJOR;
minor = ROCTHRUST_VERSION_MINOR;
std::cout << "rocThrust v" << major << "." << minor << std::endl;
using T = int;
using U = long;
size_t size = 1<<16;
thrust::host_vector<T> h_input(size);
for(size_t i = 0; i < size; i++)
{
h_input[i] = i;
}
// Calculate expected results on host
thrust::host_vector<U> expected(size);
thrust::transform(h_input.begin(), h_input.end(), expected.begin(), unary_transform<U>());
thrust::device_vector<T> d_input(h_input);
thrust::device_vector<U> d_output(size);
thrust::transform(d_input.begin(), d_input.end(), d_output.begin(), unary_transform<U>());
thrust::host_vector<U> h_output = d_output;
for(size_t i = 0; i < size; i++)
{
if(h_output[i] != expected[i])
{
std::cout
<< "Failure: output (" << h_output[i]
<< ") != expected (" << expected[i] << ")"
<< " at index:" << i
<< std::endl;
return 1;
}
}
return 0;
}
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