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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.arch
Subject: Re: Is Parallel Programming Hard, And, If So, What Can You Do About
 It?
Date: Wed, 21 May 2025 03:41:45 -0000 (UTC)
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On Tue, 20 May 2025 18:39:54 -0700, Chris M. Thomasson wrote:

>> Processes on the same core are concurrent - processes on different
>> cores are parallel.
> 
> Only if the cores and/or "hardware threads" do not interfere with one
> another?

That’s why I think the distinction is meaningless.

Yes, there is a valid distinction to be made between truly concurrent/
parallel processes/threads, and ones which are made to appear so by 
preemptive scheduling on shared hardware.

Not sure if there is a good term for the latter: “timesliced”? 
“timeshared”? “pseudoconcurrent”? “pseudoparallel”?