simd.hh File Reference

Abstractions for support of dedicated SIMD data types. More...

#include <cassert>
#include <cstddef>
#include <type_traits>
#include <utility>
#include <dune/common/conditional.hh>
#include <dune/common/debugalign.hh>
#include <dune/common/rangeutilities.hh>
#include <dune/common/typetraits.hh>
#include <dune/common/vc.hh>

Go to the source code of this file.

Classes
struct	Dune::SimdScalarTypeTraits< AlignedNumber< T, align > >
	deduce the underlying scalar data type of an AlignedNumber More...

Namespaces
	Dune
	Dune namespace.

Typedefs
template<typename V >
using	Dune::SimdIndex = typename SimdIndexTypeTraits< V >::type
	An simd vector of indices corresponding to a simd vector V. More...
template<typename V >
using	Dune::SimdMask = typename SimdMaskTypeTraits< V >::type
	A simd vector of truth values corresponding to a simd vector V. More...

Functions
template<class T >
std::size_t	Dune::lanes (const T &)
	get the number of lanes of a simd vector (scalar version)
template<class T >
T	Dune::lane (std::size_t l, const T &v)
	access a lane of a simd vector (scalar version)
template<class T >
T &	Dune::lane (std::size_t l, T &v)
	access a lane of a simd vector (scalar version)
template<class T >
void	Dune::assign (T &dst, const T &src, bool mask)
	masked Simd assignment (scalar version) More...

Detailed Description

Abstractions for support of dedicated SIMD data types.

Libraries like Vc (https://github.com/VcDevel/Vc) add high-level data types for SIMD (or vectorization) support in C++. Most of these operations mimic the behavior of a numerical data type. Some boolean operations can not be implemented in a compatible way to trivial data types.

This header contains additional abstractions to help writing code that works with trivial numerical data types (like double) and Vc vectorization data types.

See also the conditional.hh and range_utils.hh headers.

Deprecated:

Use the newer simd architecture from dune/common/simd/simd.hh instead.