[Mpi3-rma] [EXTERNAL] Re: request-based ops

[Jeff Hammond]

Do you object to Pirate RMA (requests for each completion, not just local)?

Jeff

On Fri, Jun 14, 2013 at 4:00 PM, Barrett, Brian W <bwbarre at sandia.gov> wrote:
> As an FYI, my problem with this proposal is two-fold:
>
> First, we need to deal with the fact that many of the calls are local today,
> meaning we need to fix some definitions, which is a big change (iflush/flush
> shouldn't have the same semantics).
>
> Second, the semantics of iflush (and friends) need lots of care. For
> example, allowing a communication event between iflush and wait would
> greatly hinder my implementation's performance when not using iflush.
>
> I understand the desire and like many of the non-blocking, but there are
> many places that we should balance non-blocking variants vs. performance
> loss...
>
> Brian
>
>
>
> Sent with Good (www.good.com)
>
>
>
> -----Original Message-----
> From: Pavan Balaji [balaji at mcs.anl.gov]
> Sent: Friday, June 14, 2013 02:51 PM Mountain Standard Time
> To: mpi3-rma at lists.mpi-forum.org
> Subject: [EXTERNAL] Re: [Mpi3-rma] request-based ops
>
>
> On 06/14/2013 03:43 PM, Jim Dinan wrote:
>> Ahh, right, I had to miss that session at the Forum meeting.  If anyone
>> else is looking for them, these are the slides:
>>
>>
>> http://meetings.mpi-forum.org/secretary/2013/06/slides/2013-06-06-Nonblocking-Operations.pdf
>>
>> I was indeed forgetting about remote versus local completion and polling
>> on the request.  It sounds like this would definitely fill a gap in the
>> RMA interface.
>
> FYI, this was not meant to be an RMA proposal, since it touches blocking
> function calls in many chapters (e.g., COMM_ICONNECT and COMM_IACCEPT).
>
> I think I/O operations have a similar ticket as well.
>
> All these tickets need to be combined into a single nonblocking
> operations ticket.
>
>   -- Pavan
>
> --
> Pavan Balaji
> http://www.mcs.anl.gov/~balaji
> _______________________________________________
> mpi3-rma mailing list
> mpi3-rma at lists.mpi-forum.org
> http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi3-rma
>
>
> _______________________________________________
> mpi3-rma mailing list
> mpi3-rma at lists.mpi-forum.org
> http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi3-rma



-- 
Jeff Hammond
Argonne Leadership Computing Facility
University of Chicago Computation Institute
jhammond at alcf.anl.gov / (630) 252-5381
http://www.linkedin.com/in/jeffhammond
https://wiki.alcf.anl.gov/parts/index.php/User:Jhammond
ALCF docs: http://www.alcf.anl.gov/user-guides