Supplemental C++ SIMD Programming

In the previous eight chapters, you learned critical programming details about AVX, AVX2, and AVX-512. You also discovered how to create SIMD calculating functions that exploited the computational resources of these x86 instruction set extensions. This chapter focuses on supplemental x86 C++ SIMD programming topics. It begins with a source code example that demonstrates utilization of the cpuid instruction and how to exercise this instruction to detect x86 instruction set extensions such as AVX, AVX2, and AVX-512. This is followed by a section that explains how to use SIMD versions of common C++ math library routines.