Is low-level programming a sin or a virtue? It depends. When programming for using vector processing on a modern processor, ideally I’d write some code in my favorite language and it would run as fast ...

SIMD是Single-instruction multiple-data的缩写。意思是通过一条指令就能够对若干笔数据进行处理运算。这种指令对于整数型数组运算，或者是图象像素点运算都极为有利。为了支持这种处理模式，Intel推出了一系列的技术和指令集，这其中包括： 所有的技术或是指令集 ...

Intel AVX-512 is the latest in a long history of x86 vector instruction sets. Vector instructions, commonly known as SIMD instructions, are special because they do more than one operation at a time.