Course of Raku / Functional, concurrent, reactive, and web programming / Concurrent programming

Hyper and race 🆕

The functional list operations you met earlier — map, grep — process their elements one after another. When the work on each element is independent and substantial, Raku can run it in parallel across several CPU cores, with almost no change to your code.

Two methods switch this on: .hyper, which keeps the results in order, and .race, which does not but can be a little faster. This section shows both.

Topics in this section

• Parallel maps with hyper
• Unordered parallelism with race

Practice

Complete the quiz that covers the contents of this section.

• Quiz — hyper

Exercises

This section contains 3 exercises. Examine all the topics of this section before doing the coding practice.

1. A hyper map
2. A racing sum
3. Hyper with a filter

Course navigation

← Solution: Drain a channel   |   Parallel maps with hyper →