Updating Kokkos lib
git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@15556 f3b2605a-c512-4ea7-a41b-209d697bcdaa
This commit is contained in:
stamoor
302
lib/kokkos/core/src/Kokkos_Array.hpp
Normal file
302
lib/kokkos/core/src/Kokkos_Array.hpp
Normal file
@ -0,0 +1,302 @@
|
||||
/*
|
||||
//@HEADER
|
||||
// ************************************************************************
|
||||
//
|
||||
// Kokkos v. 2.0
|
||||
// Copyright (2014) Sandia Corporation
|
||||
//
|
||||
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
|
||||
// the U.S. Government retains certain rights in this software.
|
||||
//
|
||||
// Redistribution and use in source and binary forms, with or without
|
||||
// modification, are permitted provided that the following conditions are
|
||||
// met:
|
||||
//
|
||||
// 1. Redistributions of source code must retain the above copyright
|
||||
// notice, this list of conditions and the following disclaimer.
|
||||
//
|
||||
// 2. Redistributions in binary form must reproduce the above copyright
|
||||
// notice, this list of conditions and the following disclaimer in the
|
||||
// documentation and/or other materials provided with the distribution.
|
||||
//
|
||||
// 3. Neither the name of the Corporation nor the names of the
|
||||
// contributors may be used to endorse or promote products derived from
|
||||
// this software without specific prior written permission.
|
||||
//
|
||||
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
|
||||
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
|
||||
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
||||
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
||||
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
//
|
||||
// Questions? Contact H. Carter Edwards (hcedwar@sandia.gov)
|
||||
//
|
||||
// ************************************************************************
|
||||
//@HEADER
|
||||
*/
|
||||
|
||||
#ifndef KOKKOS_ARRAY
|
||||
#define KOKKOS_ARRAY
|
||||
|
||||
#include <type_traits>
|
||||
#include <algorithm>
|
||||
#include <limits>
|
||||
#include <cstddef>
|
||||
|
||||
namespace Kokkos {
|
||||
|
||||
/**\brief Derived from the C++17 'std::array'.
|
||||
* Dropping the iterator interface.
|
||||
*/
|
||||
template< class T = void
|
||||
, size_t N = ~size_t(0)
|
||||
, class Proxy = void
|
||||
>
|
||||
struct Array {
|
||||
private:
|
||||
T m_elem[N];
|
||||
public:
|
||||
|
||||
typedef T & reference ;
|
||||
typedef typename std::add_const<T>::type & const_reference ;
|
||||
typedef size_t size_type ;
|
||||
typedef ptrdiff_t difference_type ;
|
||||
typedef T value_type ;
|
||||
typedef T * pointer ;
|
||||
typedef typename std::add_const<T>::type * const_pointer ;
|
||||
|
||||
KOKKOS_INLINE_FUNCTION static constexpr size_type size() { return N ; }
|
||||
KOKKOS_INLINE_FUNCTION static constexpr bool empty(){ return false ; }
|
||||
|
||||
template< typename iType >
|
||||
KOKKOS_INLINE_FUNCTION
|
||||
reference operator[]( const iType & i )
|
||||
{
|
||||
static_assert( std::is_integral<iType>::value , "Must be integral argument" );
|
||||
return m_elem[i];
|
||||
}
|
||||
|
||||
template< typename iType >
|
||||
KOKKOS_INLINE_FUNCTION
|
||||
const_reference operator[]( const iType & i ) const
|
||||
{
|
||||
static_assert( std::is_integral<iType>::value , "Must be integral argument" );
|
||||
return m_elem[i];
|
||||
}
|
||||
|
||||
KOKKOS_INLINE_FUNCTION pointer data() { return & m_elem[0] ; }
|
||||
KOKKOS_INLINE_FUNCTION const_pointer data() const { return & m_elem[0] ; }
|
||||
|
||||
~Array() = default ;
|
||||
Array() = default ;
|
||||
Array( const Array & ) = default ;
|
||||
Array & operator = ( const Array & ) = default ;
|
||||
|
||||
// Some supported compilers are not sufficiently C++11 compliant
|
||||
// for default move constructor and move assignment operator.
|
||||
// Array( Array && ) = default ;
|
||||
// Array & operator = ( Array && ) = default ;
|
||||
};
|
||||
|
||||
|
||||
template< class T , class Proxy >
|
||||
struct Array<T,0,Proxy> {
|
||||
public:
|
||||
|
||||
typedef typename std::add_const<T>::type & reference ;
|
||||
typedef typename std::add_const<T>::type & const_reference ;
|
||||
typedef size_t size_type ;
|
||||
typedef ptrdiff_t difference_type ;
|
||||
typedef typename std::add_const<T>::type value_type ;
|
||||
typedef typename std::add_const<T>::type * pointer ;
|
||||
typedef typename std::add_const<T>::type * const_pointer ;
|
||||
|
||||
KOKKOS_INLINE_FUNCTION static constexpr size_type size() { return 0 ; }
|
||||
KOKKOS_INLINE_FUNCTION static constexpr bool empty() { return true ; }
|
||||
|
||||
template< typename iType >
|
||||
KOKKOS_INLINE_FUNCTION
|
||||
value_type operator[]( const iType & )
|
||||
{
|
||||
static_assert( std::is_integral<iType>::value , "Must be integer argument" );
|
||||
return value_type();
|
||||
}
|
||||
|
||||
template< typename iType >
|
||||
KOKKOS_INLINE_FUNCTION
|
||||
value_type operator[]( const iType & ) const
|
||||
{
|
||||
static_assert( std::is_integral<iType>::value , "Must be integer argument" );
|
||||
return value_type();
|
||||
}
|
||||
|
||||
KOKKOS_INLINE_FUNCTION pointer data() { return pointer(0) ; }
|
||||
KOKKOS_INLINE_FUNCTION const_pointer data() const { return const_pointer(0); }
|
||||
|
||||
~Array() = default ;
|
||||
Array() = default ;
|
||||
Array( const Array & ) = default ;
|
||||
Array & operator = ( const Array & ) = default ;
|
||||
|
||||
// Some supported compilers are not sufficiently C++11 compliant
|
||||
// for default move constructor and move assignment operator.
|
||||
// Array( Array && ) = default ;
|
||||
// Array & operator = ( Array && ) = default ;
|
||||
};
|
||||
|
||||
|
||||
template<>
|
||||
struct Array<void,~size_t(0),void>
|
||||
{
|
||||
struct contiguous {};
|
||||
struct strided {};
|
||||
};
|
||||
|
||||
template< class T >
|
||||
struct Array< T , ~size_t(0) , Array<>::contiguous >
|
||||
{
|
||||
private:
|
||||
T * m_elem ;
|
||||
size_t m_size ;
|
||||
public:
|
||||
|
||||
typedef T & reference ;
|
||||
typedef typename std::add_const<T>::type & const_reference ;
|
||||
typedef size_t size_type ;
|
||||
typedef ptrdiff_t difference_type ;
|
||||
typedef T value_type ;
|
||||
typedef T * pointer ;
|
||||
typedef typename std::add_const<T>::type * const_pointer ;
|
||||
|
||||
KOKKOS_INLINE_FUNCTION constexpr size_type size() const { return m_size ; }
|
||||
KOKKOS_INLINE_FUNCTION constexpr bool empty() const { return 0 != m_size ; }
|
||||
|
||||
template< typename iType >
|
||||
KOKKOS_INLINE_FUNCTION
|
||||
reference operator[]( const iType & i )
|
||||
{
|
||||
static_assert( std::is_integral<iType>::value , "Must be integral argument" );
|
||||
return m_elem[i];
|
||||
}
|
||||
|
||||
template< typename iType >
|
||||
KOKKOS_INLINE_FUNCTION
|
||||
const_reference operator[]( const iType & i ) const
|
||||
{
|
||||
static_assert( std::is_integral<iType>::value , "Must be integral argument" );
|
||||
return m_elem[i];
|
||||
}
|
||||
|
||||
KOKKOS_INLINE_FUNCTION pointer data() { return m_elem ; }
|
||||
KOKKOS_INLINE_FUNCTION const_pointer data() const { return m_elem ; }
|
||||
|
||||
~Array() = default ;
|
||||
Array() = delete ;
|
||||
Array( const Array & rhs ) = delete ;
|
||||
|
||||
// Some supported compilers are not sufficiently C++11 compliant
|
||||
// for default move constructor and move assignment operator.
|
||||
// Array( Array && rhs ) = default ;
|
||||
// Array & operator = ( Array && rhs ) = delete ;
|
||||
|
||||
KOKKOS_INLINE_FUNCTION
|
||||
Array & operator = ( const Array & rhs )
|
||||
{
|
||||
const size_t n = std::min( m_size , rhs.size() );
|
||||
for ( size_t i = 0 ; i < n ; ++i ) m_elem[i] = rhs[i] ;
|
||||
return *this ;
|
||||
}
|
||||
|
||||
template< size_t N , class P >
|
||||
KOKKOS_INLINE_FUNCTION
|
||||
Array & operator = ( const Array<T,N,P> & rhs )
|
||||
{
|
||||
const size_t n = std::min( m_size , rhs.size() );
|
||||
for ( size_t i = 0 ; i < n ; ++i ) m_elem[i] = rhs[i] ;
|
||||
return *this ;
|
||||
}
|
||||
|
||||
KOKKOS_INLINE_FUNCTION constexpr Array( pointer arg_ptr , size_type arg_size , size_type = 0 )
|
||||
: m_elem(arg_ptr), m_size(arg_size) {}
|
||||
};
|
||||
|
||||
template< class T >
|
||||
struct Array< T , ~size_t(0) , Array<>::strided >
|
||||
{
|
||||
private:
|
||||
T * m_elem ;
|
||||
size_t m_size ;
|
||||
size_t m_stride ;
|
||||
public:
|
||||
|
||||
typedef T & reference ;
|
||||
typedef typename std::add_const<T>::type & const_reference ;
|
||||
typedef size_t size_type ;
|
||||
typedef ptrdiff_t difference_type ;
|
||||
typedef T value_type ;
|
||||
typedef T * pointer ;
|
||||
typedef typename std::add_const<T>::type * const_pointer ;
|
||||
|
||||
KOKKOS_INLINE_FUNCTION constexpr size_type size() const { return m_size ; }
|
||||
KOKKOS_INLINE_FUNCTION constexpr bool empty() const { return 0 != m_size ; }
|
||||
|
||||
template< typename iType >
|
||||
KOKKOS_INLINE_FUNCTION
|
||||
reference operator[]( const iType & i )
|
||||
{
|
||||
static_assert( std::is_integral<iType>::value , "Must be integral argument" );
|
||||
return m_elem[i*m_stride];
|
||||
}
|
||||
|
||||
template< typename iType >
|
||||
KOKKOS_INLINE_FUNCTION
|
||||
const_reference operator[]( const iType & i ) const
|
||||
{
|
||||
static_assert( std::is_integral<iType>::value , "Must be integral argument" );
|
||||
return m_elem[i*m_stride];
|
||||
}
|
||||
|
||||
KOKKOS_INLINE_FUNCTION pointer data() { return m_elem ; }
|
||||
KOKKOS_INLINE_FUNCTION const_pointer data() const { return m_elem ; }
|
||||
|
||||
~Array() = default ;
|
||||
Array() = delete ;
|
||||
Array( const Array & ) = delete ;
|
||||
|
||||
|
||||
// Some supported compilers are not sufficiently C++11 compliant
|
||||
// for default move constructor and move assignment operator.
|
||||
// Array( Array && rhs ) = default ;
|
||||
// Array & operator = ( Array && rhs ) = delete ;
|
||||
|
||||
KOKKOS_INLINE_FUNCTION
|
||||
Array & operator = ( const Array & rhs )
|
||||
{
|
||||
const size_t n = std::min( m_size , rhs.size() );
|
||||
for ( size_t i = 0 ; i < n ; ++i ) m_elem[i] = rhs[i] ;
|
||||
return *this ;
|
||||
}
|
||||
|
||||
template< size_t N , class P >
|
||||
KOKKOS_INLINE_FUNCTION
|
||||
Array & operator = ( const Array<T,N,P> & rhs )
|
||||
{
|
||||
const size_t n = std::min( m_size , rhs.size() );
|
||||
for ( size_t i = 0 ; i < n ; ++i ) m_elem[i] = rhs[i] ;
|
||||
return *this ;
|
||||
}
|
||||
|
||||
KOKKOS_INLINE_FUNCTION constexpr Array( pointer arg_ptr , size_type arg_size , size_type arg_stride )
|
||||
: m_elem(arg_ptr), m_size(arg_size), m_stride(arg_stride) {}
|
||||
};
|
||||
|
||||
} // namespace Kokkos
|
||||
|
||||
#endif /* #ifndef KOKKOS_ARRAY */
|
||||
|
||||
Reference in New Issue
Block a user