[Mpi3-rma] RMA proposal 2 initial text

William Gropp wgropp at illinois.edu
Fri Oct 29 11:49:34 CDT 2010

Thanks.  I've added this to the Propoal 2 page on the wiki ( https://svn.mpi-forum.org/trac/mpi-forum-web/wiki/mpi3-rma-proposal2 


On Oct 27, 2010, at 9:41 PM, Pavan Balaji wrote:

> All,
> I've attached a draft of proposal 2. Most of the changes that were
> originally planned for proposal 2 have been merged into proposal 1. I
> think we might be able to merge some more (or all) features into
> proposal 1 as well.
> Here are the main changes:
> 1. Communication ordering: communication from the same source to the
> same memory location is ordered now for all epochs (not something
> specific to lockfree). The user can relax it by setting the  
> "unordered"
> info argument or a per-epoch MPI_MODE_UNORDERED assertion.
> 2. New calls for per-operation local completions for buffer reuse.
> Appropriate test and wait calls are also added.
> 3. Added a new MPI_WIN_LOCK_WAIT call that blocks till the lock is
> acquired for using shared memory regions with load/store capabilities
> within a window.
> I haven't added the MPI_WIN_ALLFLUSHALL call yet.
>  -- Pavan
> -- 
> Pavan Balaji
> http://www.mcs.anl.gov/~balaji
> <one-side-2.pdf><ATT00001..txt>

William Gropp
Deputy Director for Research
Institute for Advanced Computing Applications and Technologies
Paul and Cynthia Saylor Professor of Computer Science
University of Illinois Urbana-Champaign

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