NEON Vectorization Workshop

We introduce vectorization with NEON ground up from the most basic concept up to very advanced vectorization topics.

Workshop agenda:

• A short introduction to vectorization
• Introduction to NEON intrinsics
• Advanced NEON intrinsics
• Basic vectorization patterns – vectorizing for loops, foor loops with early exit, while loops and convergence loops
• Common vectorization patterns – vectorizing loops with conditions, conditional counting, loops with structs and matrix transposition.
• Vectorization inhibitors – learn to detect and remove obstacles that hinder efficient vectorization
• Vectorization types according to data access pattern – there are several ways to do vectorization, here we investigate inner-loop vectorization, outer-loop vectorization.
• Advanced vectorization patterns – we talk about how to vectorize copy_if, trees and lookup tables.
• Memory performance – improve the performance of your vectorized code by better using the memory subsystem.
• Peak performance – reach peak software performance by breaking instruction dependencies, avoiding register spills and cleverly using everything hardware has to offer.