mirror of https://github.com/GOSTSec/ccminer
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.
59 lines
1.5 KiB
59 lines
1.5 KiB
11 years ago
|
/*
|
||
|
|
* 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
|
||
|
|
|