Re: [Gomp-discuss] GOMP Requirements v1.1

[Lars Segerlund]

 What you say might generally be true, but not if performance considerations 
are taken into account, on a NUMA system for example.

 Also if you have a look at the intel openMP compiler it certainly takes the 
architecture of the target in mind, generate some code for a single proc multi 
threading processor and a SMP multiproc, any differances ?

 Anyhow I don't think it's very relevant for the implementation at this time, 
since it's a long way to go before we reach the point at which we can start to 
worry about details like that even if it's quite relevant.

 / regards, Lars Segerlund.


On Thu, 11 Nov 2004 11:36:18 -0800
Ross Towle <address@hidden> wrote:

> Under the Effects section is:
>       in some cases, how code is reorganized depends on the threading
> model in use
> 
> I have a problem with this statement and its implications.
> 
> I very strongly believe that the outlined parallel region/work-sharing
> region and the OpenMP runtime support routines called from the user
> program should be EXACTLY the same no matter what threading model is
> used.  If the runtime support routines are modeled after the OpenMP
> spec model then  the threading model only affects how the support
> routine is implimented.  To me, supporting multiple thread models and
> multiple targets is much easier by modifying the guts of the runtime
> support routines than the changes to be made in the compiler.
> 
> -Ross
> 
> 
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