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Choose the Right C++ Parallelism Tool | Low-Level vs Async vs Coroutines vs Data Parallel - Eran Gilad - CppCon 2025
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Modern C++ offers a wealth of parallel programming features. Those features belong to four different programming models: low-level, a-sync, cooperative multitasking, and data parallel. The low-level model (or rather, non-model) contains the basic building blocks – threads, atomics, mutex etc. The a-sync model contains async, future and related classes. The cooperative multitasking model relies on coroutines. Lastly, the data parallel model contains the parallel algorithms. The four models aren’t just different abstraction levels – each is appropriate for a different program structure. This talk will review the four models, describe the central features used by each model, and discuss the expected use case for each one. Since many of the parallelism features are not new to the language at this point, the talk will not focus on the details of the features themselves. Instead, the talk will put them in the context of a programming model and make the choice of parallel programming features easier for C++ developers.

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Slides: https://github.com/CppCon/CppCon2025/...

Work at Hudson River Trading (HRT): https://tinyurl.com/safxfctf
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Eran Gilad

Eran Gilad is a software engineer at Regatta Data, where he works on one of the most fascinating areas of software development: database internals. Before diving deep into database engineering, Eran was a principal research engineer at Yahoo Research and a member of a systems research group. He holds a PhD in Computer Science from the Technion, where his work centered on various aspects of parallel programming and execution. Beyond his professional work, Eran is passionate about developer communities. He co-organizes the Core C++ conference, the Haifa::C++ meetup group, and the Medabrim C++ WhatsApp group. His involvement in these communities stems from his first job experience, where he was the sole C++ developer at his company for several years.
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CppCon is the annual, week-long face-to-face gathering for the entire C++ community. The conference is organized by the C++ community for the community. You will enjoy inspirational talks and a friendly atmosphere designed to help attendees learn from each other, meet interesting people, and generally have a stimulating experience. Taking place this year in Aurora, Colorado, near the Denver airport, and including multiple diverse tracks, the conference will appeal to anyone from C++ novices to experts.
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