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A comment on Is Parallel Programming Hard, and, If So, What Can You Do About It? [pdf]. Parent comment

Re:Is Parallel Programming Hard, and, If So, What Can You Do... by toast0 on Sunday February 19, 2023 @06:28PM (#34862993)
I think it's because shared memory concurrency is easy to start on in lots of popular languages. But it doesn't take long until you're in a tricky mess of locks.

Actor style based on explicit communication and no shared memory is a lot easier to work with (IMHO), but it's not as easy to get started on because it's not as simple as pthread_create and go.

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Re:Is Parallel Programming Hard, and, If So, What Can You Do... by apelapan on Monday February 20, 2023 @02:43AM (#34865974)
No shared memory will also mean that actor style is slower-than-single-thread-slow, when the "message-size to processing-per-actor ratio" is not right.

Actors and message passing is great for problems where it fits and worse than useless where it doesn't

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