How deeply does C++ Concurrency in Action, Second Edition cover parallelism?

Defines the performance-oriented distinction from concurrency and points to library-managed parallelization without detailing its mechanics.

Parallelism

As explained in C++ Concurrency in Action, Second Edition

Parallelism is the simultaneous execution of multiple tasks, typically to use available hardware and improve performance.

Parallelism means running multiple tasks simultaneously, with the performance goal of using available hardware—especially for bulk data processing. Concurrency often emphasizes separation of concerns or responsiveness instead, though the terms overlap. section 1.1.3

Parallel work can be organized in different ways:

Run separate processes on distinct networked machines to increase available parallelism, accepting higher communication costs. section 1.1.2
Express work as a standard-library algorithm call and delegate task parallelization to the library for optimal performance where supported. section 9.0

How C++ Concurrency in Action, Second Edition covers it

Cover of C++ Concurrency in Action, Second Edition

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Related concepts

concurrencycontrasts with · Concurrency is the structuring or execution of multiple computational activities so their progress overlaps in time, whether or not they run simultaneously.
sequential processingcontrasts with · The execution of operations one after another in a defined order, without overlapping their progress.
diminishing returnsproduces · Diminishing returns is a pattern in which successive increases in an input produce progressively smaller incremental gains in an outcome.
threaduses · A thread is an independently schedulable sequence or context of execution within a program or process.
data parallelincludes · Data parallelism is a parallel-computing technique that applies the same computation concurrently to separate portions of data.

This explainer was generated by Manning's knowledge graph from the text of C++ Concurrency in Action, Second Edition. The section links point to the parts of the book it draws on.