I have examples for concurrent-not-parallel, like single threaded processes or a multi-threaded program on a single thread processor.

What I cannot find are examples of scenarios where the execution is parallel, but not concurrent. TBH, it seems impossible (so far).

Wikipedia did give me one - Bit-level parallelism[1]. But that topic is a bit out of reach for me (again, so far).

Can anyone give me a more simple parallel-not-concurrent execution scenario?

[1]: https://en.wikipedia.org/wiki/Bit-level_parallelism