GOSTCoin CUDA miner project, compatible with most nvidia cards, containing only gostd algo
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/*
* 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
//functions to support blocking
namespace thrust
{
namespace detail
{
namespace util
{
// x/y rounding towards +infinity for integers, used to determine # of blocks/warps etc.
template<typename L, typename R>
inline __host__ __device__ L divide_ri(const L x, const R y)
{
return (x + (y - 1)) / y;
}
// x/y rounding towards zero for integers, used to determine # of blocks/warps etc.
template<typename L, typename R>
inline __host__ __device__ L divide_rz(const L x, const R y)
{
return x / y;
}
// round x towards infinity to the next multiple of y
template<typename L, typename R>
inline __host__ __device__ L round_i(const L x, const R y){ return y * divide_ri(x, y); }
// round x towards zero to the next multiple of y
template<typename L, typename R>
inline __host__ __device__ L round_z(const L x, const R y){ return y * divide_rz(x, y); }
} // end namespace util
} // end namespace detail
} // end namespace thrust