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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Loops and parallel execution
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Date: Tue, 25 Jan 2011 22:32:57 +0100
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Date: 2011-01-25T22:32:55+01:00
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On Tue, 25 Jan 2011 18:36:29 +0100, Georg Bauhaus wrote:

> If a compiler detects two independent paths inside a loop,

I don't see any application for this. Can you remember the last time you
wrote such loop? I cannot.

The Occam's par-statement could be a better candidate, but I don't see how
this could be useful under a modern general-purpose OS with their
"vertical" parallelism, when each task is assigned to one core. The thing
you propose is "horizontal" parallelism, when a task/process would run on
all cores simultaneously. Inmos' Occam ran under no true OS, and the
processor architecture was well suited for such ad-hoc parallelism. Modern
processors are very different from T805 and I doubt that they would allow
an efficient implementation of this.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de