Chapter 10

Vectorization advisor

Abstract

Introduces the Intel Vectorization Advisor, which provides AVX-512 analysis capabilities to help reach the vectorization potential of Knights Landing. For scalar loops, it helps to discover what prevents code from being vectorized. For vectorized loops, it provides detailed AVX-512 performance characterization. Recommendations are additionally supplemented with the AVX-512 Traits and FLOPs, masks, Roofline, and Gather/Scatter reports.

Keywords

Vectorization Advisor; Vectorization; Flops profiler; AVX-512; Reciprocal; Xeon Phi; Gather; Scatter; FLOPs; SIMD mask; Knights Landing; SIMD; Memory access pattern; Memory footprint; OpenMP; Fortran; Roofline model; Advisor Recommendations

What is new with ...

Get Intel Xeon Phi Processor High Performance Programming, 2nd Edition now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.