[Mpi3-rma] MPI-3.1 consideration slides

Pavan Balaji balaji at mcs.anl.gov
Tue Dec 4 13:08:28 CST 2012


The slide talks about mixed PUT/GET and load/store to different
locations, which are not allowed in the SEPARATE model.

 -- Pavan

On 12/03/2012 02:22 PM US Central Time, Rajeev Thakur wrote:
> The change suggested on slide 2 is not right.
> 
> In the existing standard, for the separate memory model, the restriction is that a put/accumulate must not access a target window once a local update (to anywhere in the window) has started or a put/get (to *overlapping memory locations* in the window) has started.
> 
> You are allowed to do concurrent put/gets to distinct memory locations in the same window.
> 
> So the change needed is say "put/get to overlapping memory locations" instead of "put/get to an overlapping window".
> 
> Rajeev
> 
> 
> 
> On Dec 1, 2012, at 8:21 PM, Pavan Balaji wrote:
> 
>> All,
>>
>> Please see the attached slides as consideration items for MPI-3.1.
>>
>> -- Pavan
>>
>> -- 
>> Pavan Balaji
>> http://www.mcs.anl.gov/~balaji
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> 
> 
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-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji



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