GOSTCoin CUDA miner project, compatible with most nvidia cards, containing only gostd algo
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

132 lines
3.7 KiB

/*
* 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