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Subject: Re: [mpi3-rma] Plans ?
From: Nieplocha, Jarek (jarek.nieplocha_at_[hidden])
Date: 2008-01-27 19:50:37


Good point Rich.
 
Enforcing ordering for all the cases say on networks with adaptive routing can be expensive and unnecessary.
 
Jarek

________________________________

From: mpi3-rma-bounces_at_[hidden] on behalf of Richard Graham
Sent: Sun 1/27/2008 4:44 PM
To: MPI 3 Remote Memory Operations
Subject: Re: [mpi3-rma] Plans ?

Can you elaborate on this ?

What is the intent ?

Do you want to have ordering be required, or optional ? Seems like there are times
 where you would like to have ordering guarantees, and others in which you want the
 network to blast things through as fast a possible, w/o concern for ordering.

Rich

On 1/27/08 12:26 AM, "Pavan Balaji" <balaji_at_[hidden]> wrote:

        
        
        I was planning to write a proposal on ordering and completion of
        requests. Specifically, to treat RMA operations as ordered with respect
        to how application writers perceive it. That is, if process A sends an
        RMA message to process B, and then sends a regular message to process B
        (with a special TAG, for instance), the MPI stack on process B should
        deliver both the RMA message as well as the regular message to the
        application. That is, it should not wait for the remote window to close
        before doing so.
        
        However, it'll be good to have a telecon to bounce off ideas and get
        initial comments before we go off and spend time writing more detailed
        proposals.
        
        Is a telecon being planned? I don't seem to have received any email
        about this.
        
          -- Pavan
        
        On 01/26/2008 10:43 PM, Rajeev Thakur wrote:
> It would be good to know if anyone is planning to write a proposal on any
> topic for MPI-3 RMA.
>
> Rajeev
>
>> -----Original Message-----
>> From: mpi3-rma-bounces_at_[hidden]
>> [mailto:mpi3-rma-bounces_at_[hidden]] On Behalf Of Richard Graham
>> Sent: Wednesday, January 23, 2008 10:18 AM
>> To: mpi3-rma_at_[hidden]
>> Subject: [mpi3-rma] Plans ?
>>
>> What are the plans for this working group ? At the meeting
>> last week there seemed to be quite a bit of interest in this
>> topic, and it seemed like there could be at least 2 groups
>> working on this. Seems like, if this is the case, it would
>> be better to try and coordinate early on within the working
>> group, rather than try and rationalize two or more well
>> developed proposals.
>> Any thoughts here ?
>>
>> Rich
>>
>> _______________________________________________
>> mpi3-rma mailing list
>> mpi3-rma_at_[hidden]
>> http://lists.cs.uiuc.edu/mailman/listinfo/mpi3-rma
>>
>>
>
> _______________________________________________
> mpi3-rma mailing list
> mpi3-rma_at_[hidden]
> http://lists.cs.uiuc.edu/mailman/listinfo/mpi3-rma
>
        
        --
        Pavan Balaji
        http://www.mcs.anl.gov/~balaji
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