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What is the difference between concurrency and parallelism in C++?

An example of an AI chatbot conversation about concurrency and parallelism in C++ programming.

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You

What is the difference between concurrency and parallelism in C++?

MagicBuddy
MagicBuddy

Concurrency is about dealing with multiple tasks at once, while parallelism is about executing multiple tasks simultaneously.

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You

Can you give me an example of concurrency in C++?

MagicBuddy
MagicBuddy

Sure! Using threads in C++, you can have one thread waiting for user input while another processes data.

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You

And how does parallelism work in C++?

MagicBuddy
MagicBuddy

In C++, parallelism can be achieved using libraries like OpenMP or C++11's thread library to run tasks on multiple cores.

😀
You

Which one is better for performance, concurrency or parallelism?

MagicBuddy
MagicBuddy

It depends on the task. Concurrency is better for I/O-bound tasks, while parallelism is better for CPU-bound tasks.

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