[Mpi-forum] MPI "Allocate receive" proposal

Pavan Balaji balaji at mcs.anl.gov
Mon Aug 26 10:27:44 CDT 2013


Can you clarify a bit more?

Is that a fatal failure at that point?  Or is it more like MPI_Alloc_mem 
failing where I can retry later or just do a regular malloc (in this 
case, a regular MPI_RECV).

  -- Pavan

On 08/26/2013 10:19 AM, David Goodell (dgoodell) wrote:
> I'd say that's implementation defined behavior, no different than hitting any other system resource limitation right now.
>
> -Dave
>
> On Aug 26, 2013, at 10:14 AM, Pavan Balaji <balaji at mcs.anl.gov> wrote:
>
>> Jeff,
>>
>> This should probably be moved to the point-to-point WG, but I'll comment on this thread for now.
>>
>> Such a proposal was brought up at the very early stage of the MPI-2.1 process (I don't remember by whom).  The main concern at that point was what happens when the memory allocation fails.  Will the receive fail? What happens to the sent message?
>>
>> Can you work these details into your slides?
>>
>> -- Pavan
>>
>> On 08/26/2013 10:10 AM, Jeff Squyres (jsquyres) wrote:
>>> Dave Goodell and I have a proposal that we've socialized a bit around with other Forum members, and would now like larger Forum feedback.  I'll be presenting the attached slides on the concept of an "allocate receive" in Madrid (3:30-4pm on Thursday).
>>>
>>> There's no text or ticket yet; this is an idea that we want to get feedback on before working up a full proposal.
>>>
>>>
>>>
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>>
>> --
>> 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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