## +21 ## Concurrency Patterns ## RAINER GRIMM 20 21 October 24-29 ## Definition "Each pattern is a three-part rule, which expresses a relation between a certain context, a problem, and a solution solution." (Christopher Alexander) ## Three Types of Patterns ## ■ Architecture pattern ■ Fundamental structure Software system ## ■ Design pattern ■ Interplay of components ■ Focus on a subsystem Interaction 7. Solution 8. Example 9. Consequenses 10. Related pattern 11. Known usages ## Concurrency Patterns ## Pattern-Oriented Software Architecture (Volume 2 and 4) ![Image](/uploads/documents/

## Concurrency Patterns in Go Artsiom Bukhautsou Senior Backend Engineer @Nord Security ## Agenda 1. Fan-in 2. Fan-out 3. Pipeline 4. Fan-in, Fan-out, Pipeline 5. Tee 🌱 ## Why learn these patterns

## Sender Patterns to Wrangle Concurrency in Embedded Devices ## Michael Caisse michael.caisse@intel.com @MichaelCaisse  Ben the count one digit at a time. 3. When done, yell "End of Line" ## async/concurrency ## async/concurrency  Sender 8 auto r = comp | async::sync_wait(); 9 10 auto [str] = r.value_or(std::make_tuple("___s)); Patterns ## Timeout • Request a thing • Wait N units of time for thing • Timeout if not received ## Timeout

## Back To Basics Concurrency ## +23 ## DAVID OLSEN ## 3 ## BACK TO BASICS: CONCURRENCY David Olsen, Software Engineer, NVIDIA CppCon, October 5, 2023 ![Image](/uploads/documents/8/2/a/3/82a35 threads ## CONCURRENCY Definition # “Multiple logical threads of execution with unknown inter-task dependencies” - Daisy Hollman, “A Unifying Abstraction for Async,” CppCon 2019 ## CONCURRENCY Definition Unifying Abstraction for Async,” CppCon 2019 ## CONCURRENCY Definition “Multiple logical threads of execution with [some] inter-task dependencies” ## CONCURRENCY Definition “Multiple logical threads of execution

## DEDUCING this PATTERNS  BEN DEANE / @ben_deane CPPCON 2021 ## OVERVIEW This presentation is about P0847, "Deducing bit about the motivation and history of P0847 • What the feature is • Existing patterns evolved by P0847 • New patterns not possible before P0847 • Miscellanea Disclaimer: all code is exposition only func! } }; ## CONSIDER "TEMPLATE METHOD" ## Recall the template method pattern (Design Patterns, Gamma/Helm/Johnson/Vlissides pp 325-330) struct Base { auto TemplateMethod() { Pr

## +24 ## Design Patterns The Most Common Misconceptions (2 of N) ## KLAUS IGLBERGER ## 20 24 September 15 - 20 ## C++ Trainer/Consultant Author of “C++ Software Design” (Co-)Organizer of the Munich 1.jpg) Term #3 Bridge Term #4 Design Pattern ## The 2nd in a Row ## Meeting C++ 2023 Design Patterns - the most common misconceptions (1 of n) Klaus Iglberger Term #1 Builder Term #2 Factory Method uments/b/2/a/2/b2a240cc83d862dcb67951e72bae578d/p4_1.jpg) ## Let's again talk about design patterns and virtual functions ## The Overhead of Inheritance Hierarchies ## The Hidden Performance Price

ER ## Concurrency in Rust Alex Crichton ## What's Rust? Rust is a systems programming language that runs blazingly fast, prevents segfaults, and guarantees thread safety. ## Concurrency? Rust? Libraries Futures ## What's concurrency? In computer science, concurrency is a property of systems in which several computations are executing simultaneously, and potentially interacting with each each other. ## Why concurrency?  ## Getting our feet wet // What does this print? int main() { int pid = fork();

## +21 ## Back to Basics: Concurrency ## MIKE SHAH 2021 October 24-29 ## Please do not redistribute slides without prior permission ## Back to Basics: Concurrency Mike Shah, Ph.D. @MichaelShah | mshah about the free lunch being over for programmers? In this talk we provide a gentle introduction to concurrency with the modern C++ std::thread library. We will introduce topics with pragmatic code examples locks, and showing how these programming primitives enable concurrency. In addition, we will show the common pitfalls to be aware of with concurrency: data races, starvation, and deadlock (the most extreme

## Back to Basics: Concurrency I also do C++ training! arthur.j.odwyer@gmail.com ## Outline - What is a data race and how do we fix it? [3–12] • C++11 mutex and RAI lock types [13–23] Questions? • • The blue/green pattern [46–52] ● Bonus C++20 slides [53–58] Questions? ## What is concurrency? - Concurrency means doing two things concurrently — “running together.” Maybe you’re switching back and music - In extremely broad strokes, parallelism is a hardware problem (think multiple CPUs) and concurrency is a software problem (think time-sharing, but also Intel’s “hyperthreading”). ## Why does C++

## +21 ## Design Patterns: Facts and Misconceptions ## KLAUS IGLBERGER 20 21 October 24-29 C++ Trainer/Consultant Author of the bl $ \text{ze} $ C++ math library (Co-)Organizer of the Munich C++ Phil Nash Watch on YouTube Klaus Iglberger ## Let's talk about Software Design and Design Patterns ## Disclaimer All content is based on personal, subjective impressions and opinions. You may have Object Oriented Design, $ ^{[4]} $ made popular by his book Agile Software Development, Principles, Patterns, and Practices. $ ^{[5]} $ Martin described it as being based on the principle of cohesion, as