mirror of
https://github.com/GOSTSec/ccminer
synced 2025-01-09 14:28:15 +00:00
132 lines
3.7 KiB
C++
132 lines
3.7 KiB
C++
/*
|
|
* Copyright 2008-2012 NVIDIA Corporation
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <thrust/detail/config.h>
|
|
#include <thrust/detail/execution_policy.h>
|
|
#include <thrust/system/cpp/detail/execution_policy.h>
|
|
#include <thrust/iterator/detail/any_system_tag.h>
|
|
|
|
namespace thrust
|
|
{
|
|
namespace system
|
|
{
|
|
namespace cuda
|
|
{
|
|
// put the canonical tag in the same ns as the backend's entry points
|
|
namespace detail
|
|
{
|
|
|
|
// this awkward sequence of definitions arise
|
|
// from the desire both for tag to derive
|
|
// from execution_policy and for execution_policy
|
|
// to convert to tag (when execution_policy is not
|
|
// an ancestor of tag)
|
|
|
|
// forward declaration of tag
|
|
struct tag;
|
|
|
|
// forward declaration of execution_policy
|
|
template<typename> struct execution_policy;
|
|
|
|
// specialize execution_policy for tag
|
|
template<>
|
|
struct execution_policy<tag>
|
|
: thrust::execution_policy<tag>
|
|
{};
|
|
|
|
// tag's definition comes before the
|
|
// generic definition of execution_policy
|
|
struct tag : execution_policy<tag> {};
|
|
|
|
// allow conversion to tag when it is not a successor
|
|
template<typename Derived>
|
|
struct execution_policy
|
|
: thrust::execution_policy<Derived>
|
|
{
|
|
// allow conversion to tag
|
|
inline operator tag () const
|
|
{
|
|
return tag();
|
|
}
|
|
};
|
|
|
|
|
|
template<typename System1, typename System2>
|
|
struct cross_system
|
|
: thrust::execution_policy<cross_system<System1,System2> >
|
|
{
|
|
inline __host__ __device__
|
|
cross_system(thrust::execution_policy<System1> &system1,
|
|
thrust::execution_policy<System2> &system2)
|
|
: system1(system1), system2(system2)
|
|
{}
|
|
|
|
thrust::execution_policy<System1> &system1;
|
|
thrust::execution_policy<System2> &system2;
|
|
|
|
inline __host__ __device__
|
|
cross_system<System2,System1> rotate() const
|
|
{
|
|
return cross_system<System2,System1>(system2,system1);
|
|
}
|
|
};
|
|
|
|
|
|
// overloads of select_system
|
|
|
|
// cpp interop
|
|
template<typename System1, typename System2>
|
|
inline __host__ __device__
|
|
cross_system<System1,System2> select_system(const execution_policy<System1> &system1, const thrust::cpp::execution_policy<System2> &system2)
|
|
{
|
|
thrust::execution_policy<System1> &non_const_system1 = const_cast<execution_policy<System1>&>(system1);
|
|
thrust::cpp::execution_policy<System2> &non_const_system2 = const_cast<thrust::cpp::execution_policy<System2>&>(system2);
|
|
return cross_system<System1,System2>(non_const_system1,non_const_system2);
|
|
}
|
|
|
|
|
|
template<typename System1, typename System2>
|
|
inline __host__ __device__
|
|
cross_system<System1,System2> select_system(const thrust::cpp::execution_policy<System1> &system1, execution_policy<System2> &system2)
|
|
{
|
|
thrust::cpp::execution_policy<System1> &non_const_system1 = const_cast<thrust::cpp::execution_policy<System1>&>(system1);
|
|
thrust::execution_policy<System2> &non_const_system2 = const_cast<execution_policy<System2>&>(system2);
|
|
return cross_system<System1,System2>(non_const_system1,non_const_system2);
|
|
}
|
|
|
|
|
|
} // end detail
|
|
|
|
// alias execution_policy and tag here
|
|
using thrust::system::cuda::detail::execution_policy;
|
|
using thrust::system::cuda::detail::tag;
|
|
|
|
} // end cuda
|
|
} // end system
|
|
|
|
// alias items at top-level
|
|
namespace cuda
|
|
{
|
|
|
|
using thrust::system::cuda::execution_policy;
|
|
using thrust::system::cuda::tag;
|
|
|
|
} // end cuda
|
|
} // end thrust
|
|
|