#include <datatype.h>

详细描述

template<typename T>
class maxon::SimdBlock< T >

A SimdBlock represents a block of memory which is organized as an array of struct of arrays (AOSOA). For example a normal Block<Vector> is layouted internally as xyzxyzxyzxyz (an array of structures, AOS). If you want to make use of SIMD, it is important to build groups of the x-, y- and z-components. Often this is done by making a structure of arrays (SOA), which for the example means having a structure of an x-array holding all x-components, a y-array and a z-array. But you can combine both to an array of struct of arrays (AOSOA): Only as many components are grouped to a fixed-size array as fit into one SIMD value, and then these small arrays are combined to a struct. This yields (in the case of four components per SIMD value) a memory layout xxxxyyyyzzzzxxxxyyyyzzzz which provides better cache locality than a simple structure of arrays.

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