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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Embedded languages based on early Ada (from "Re: Preferred OS,
 processor family for running embedded Ada?")
Newsgroups: comp.lang.ada,comp.lang.vhdl
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Date: Thu, 1 Mar 2007 14:57:01 +0100
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Date: 2007-03-01T14:57:01+01:00
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On Thu, 01 Mar 2007 11:22:32 GMT, Dr. Adrian Wrigley wrote:

> If you don't have multiple processors, lightweight threading is
> less attractive than if you do?  Inmos/Occam/Transputer was founded
> on the basis that lightweight threading was highly relevant to multiple
> processors.
> 
> Ada has no means of saying "Do these bits concurrently, if you like,
> because I don't care what the order of execution is".  And a compiler
> can't work it out from the source.  If your CPU has loads of threads,
> compiling code with "PAR" style language concurrency is rather useful
> and easy.

But par is quite low-level. What would be the semantics of:

   declare
      Thing : X;
   begin
      par
         Foo Thing);
      and
         Bar Thing);
      and
         Baz Thing);
      end par;
   end;

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