[Mpi3-hybridpm] [Mpi3-rma] Fix for win_allocate_shared

[Torsten Hoefler]

On Fri, Sep 23, 2011 at 12:40:43PM -0500, Pavan Balaji wrote:
>
> On 09/23/2011 12:39 PM, Torsten Hoefler wrote:
>> It clarifies semantics for separate (the first part) and the advice to
>> implementers makes the semantic restriction explicit.
>
> What I mean is -- how will an MPI implementation on non-cache-coherent  
> system be able to expose shared memory with this restriction?
Our decision was: Either expose non-cacheable memory or not at all.

Well, the decision is not final, it's very easy to add a rule that says
that the outcome of conflicting remote/local load/store accesses is
undefined.

Torsten

PS: Sorry for my sluggish response, we're all stuck on an island with
internet issues ... ;-)

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Torsten Hoefler         | Performance Modeling and Simulation Lead
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