Hands-On Concurrency with Rust

SIMD

In this book, we discussed thread-based concurrency. In Chapter 8, High-Level Parallelism – Threadpools, Parallel Iterators, and Processes, we took to a higher level of abstraction with Rayon's parallel iterators. Underneath, as we saw, rayon uses a sophisticated work-stealing threadpool. Threads are merely one approach to concurrency on modern CPUs. In a sense, serial programs are parallel on CPUs with deep lookahead pipelines and sophisticated branch predictors, as we saw in Chapter 2, Sequential Rust Performance and Testing. Exploiting this parallelism is a matter of carefully structuring your data and managing access to it, among the other details we discussed. What we have not gone into in this book is how to exploit a modern CPUs' ...