Re: [Gomp-discuss] Somethings to think about ....

[Lars Segerlund]

 I think that the extensions to the tree's should have NO depedency on 
openMP, ( and perhaps knowledge about share, nonuniform, distributed 
memory model in addition to concurrency ! ), but be as general as possible.

 The lib has to be openMP specific, as do the frontend and the code 
generation for the lib ( naturally ).

 But the goal of generic concurrency awareness in the middle end is 
something I support 100 %

 The thing is, we have discussed the lib and the frontend, and the hard 
part is the middle end and the algorithms, when it comes down to what 
has to be represented and what we like to be able to do and which 
algorithms to use we have done nothing.

 If we could specify a minimal set of extensions and a minimal set of 
processing ( even without optimizations ) for a naive working 
implemmentation this would enable us to start coding instead of talking 
about what should and should not be done.

 Perhaps we should need a set of guidelines as to what we want in the 
frontend, middle end, backend ? We seem to be diverging into different 
sets of requirements for these, frontend->openMP compliant, 
middle-end->totally generall, backend->libgomp/thread compliant.

 / Lars Segerlund.

Steven Bosscher wrote:
[snip]
> Hmm, I've tried to bring this up before but I don't recall we got any
> conclusions from it. So...
>
> How OpenMP-specific do we want to be?  Isn't there a more general name
> we could use?  I don't like makeing everything very OpenMP-specific. 
> IMO we should make the front end translate OpenMP pragmas to some
> generic parallel tree codes.  There should be a generic library to
> support concurrent execution.  The "OpenMP library" would just be a set
> of wrappers that call into the generic concurrency support library.
>
> The future may not be all OpenMP.  Having generic concurrency awareness
> in the middle end may be useful for whatever may be beyond OpenMP.
>
> Greetz
> Steven
>
>
>
>
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