4 ms·
I consider it parallelism without concurrency, if tasks are executed at the same time, but do not interact / synchronize. A parallel map operation (without redu
by qznc 12y ago
I consider it parallelism without concurrency, if tasks are executed at the same time, but do not interact / synchronize. A parallel map operation (without reduce) would an example.
The important thing is: Concurrency introduces indeterminism, while parallelism does not.
- scott_s 12y agoEven a parallel map operation must have some synchronization in the beginning and end. The code you write may not, but the parallel framework that you rely on does.