[r6rs-discuss] Implicit parallel Scheme (was Re: Parallel-Scheme [was: Thoughts on Scheme's Future])

[Aaron W. Hsu]

On Tue, 08 Sep 2009 14:18:29 -0400, Aubrey Jaffer <agj at alum.mit.edu> wrote:

> That is why concurrency is entirely optional in
> Implicitly-Parallel-Scheme.  At soon as compilers are smart enough, or
> threads are lightweight enough, IPS programs will reap the benefits.

I'm not sure I understand something here. You seem to be suggesting in  
this line of parallel Scheme thinking that somehow the current Scheme  
standards explicitly exclude parallel optimization of code, especially in  
areas where there is an unspecified order of evaluation. However, it seems  
that you or someone else has also brought up the point that the standards  
actually do permit such optmizations provided the serializability of the  
parts.

Are you saying that the standards now don't permit parallel optimizations  
to take place? It appears to me that they do, and that Scheme is, even  
now, welcome to lead the forefront in parallelization.

	Aaron W. Hsu

-- 
Of all tyrannies, a tyranny sincerely exercised for the good of its  
victims may be the most oppressive. -- C. S. Lewis