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/*
* Copyright 2008-2013 NVIDIA Corporation
* Modifications Copyright© 2019, 2021 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/device_ptr.h>
#include <thrust/execution_policy.h>
#include <thrust/memory.h>
#include "test_header.hpp"
#if THRUST_DEVICE_COMPILER == THRUST_DEVICE_COMPILER_HIP
#define PARALLEL_FOR thrust::hip_rocprim::parallel_for
#elif THRUST_DEVICE_COMPILER == THRUST_DEVICE_COMPILER_NVCC
#define PARALLEL_FOR thrust::cuda_cub::parallel_for
#endif
#ifdef PARALLEL_FOR
typedef ::testing::Types<Params<unsigned int>, Params<unsigned long long>> TestsParams;
TESTS_DEFINE(ParallelForTests, TestsParams)
template <typename T>
struct add_functor
{
T* ptr;
__host__ __device__ void operator()(size_t x)
{
atomicAdd(ptr, T(x + 1));
}
};
TYPED_TEST(ParallelForTests, HostPathSimpleTest)
{
thrust::device_system_tag tag;
using T = typename TestFixture::input_type;
SCOPED_TRACE(testing::Message() << "with device_id= " << test::set_device_from_ctest());
const std::vector<size_t> sizes = { (1ull << 31) + 65535, (1ull << 32) + (1ull << 20) - 1 };
for(auto size : sizes)
{
SCOPED_TRACE(testing::Message() << "with size = " << size);
auto ptr = thrust::malloc<T>(tag, sizeof(T));
auto raw_ptr = thrust::raw_pointer_cast(ptr);
ASSERT_NE(raw_ptr, nullptr);
// Zero input memory
HIP_CHECK(hipMemset(raw_ptr, 0, sizeof(T)));
// Create unary function
add_functor<T> func;
func.ptr = raw_ptr;
// Add all numbers: 1+2+...+size = size * (size+1) / 2
PARALLEL_FOR(tag, func, size);
T output;
HIP_CHECK(hipMemcpy(&output, raw_ptr, sizeof(T), hipMemcpyDeviceToHost));
output *= 2;
ASSERT_EQ(output, T(size * (size + 1)));
// Free
thrust::free(tag, ptr);
}
}
#undef PARALLEL_FOR
#endif
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