[Mpi3-rma] RMA proposal 1 update

[Underwood, Keith D]

Jeff,

Another question for you:  If you are going to call MPI_Win_all_flush_all, why not just use active target and call MPI_Win_fence?

Keith

> -----Original Message-----
> From: mpi3-rma-bounces at lists.mpi-forum.org [mailto:mpi3-rma-
> bounces at lists.mpi-forum.org] On Behalf Of Jeff Hammond
> Sent: Sunday, May 16, 2010 7:27 PM
> To: MPI 3.0 Remote Memory Access working group
> Subject: Re: [Mpi3-rma] RMA proposal 1 update
> 
> Tortsten,
> 
> There seemed to be decent agreement on adding MPI_Win_all_flush_all
> (equivalent to MPI_Win_flush_all called from every rank in the
> communicator associated with the window) since this function can be
> implemented far more efficiently as a collective than the equivalent
> point-wise function calls.
> 
> Is there a problem with adding this to your proposal?
> 
> Jeff
> 
> On Sun, May 16, 2010 at 12:48 AM, Torsten Hoefler <htor at illinois.edu>
> wrote:
> > Hello all,
> >
> > After the discussions at the last Forum I updated the group's first
> > proposal.
> >
> > The proposal (one-side-2.pdf) is attached to the wiki page
> > https://svn.mpi-forum.org/trac/mpi-forum-web/wiki/RmaWikiPage
> >
> > The changes with regards to the last version are:
> >
> > 1) added MPI_NOOP to MPI_Get_accumulate and MPI_Accumulate_get
> >
> > 2) (re)added MPI_Win_flush and MPI_Win_flush_all to passive target
> mode
> >
> > Some remarks:
> >
> > 1) We didn't straw-vote on MPI_Accumulate_get, so this function might
> >   go. The removal would be very clean.
> >
> > 2) Should we allow MPI_NOOP in MPI_Accumulate (this does not make
> sense
> >   and is incorrect in my current proposal)
> >
> > 3) Should we allow MPI_REPLACE in
> MPI_Get_accumulate/MPI_Accumulate_get?
> >   (this would make sense and is allowed in the current proposal but
> we
> >   didn't talk about it in the group)
> >
> >
> > All the Best,
> >  Torsten
> >
> > --
> >  bash$ :(){ :|:&};: --------------------- http://www.unixer.de/ -----
> > Torsten Hoefler         | Research Associate
> > Blue Waters Directorate | University of Illinois
> > 1205 W Clark Street     | Urbana, IL, 61801
> > NCSA Building           | +01 (217) 244-7736
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> > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi3-rma
> >
> 
> 
> 
> --
> Jeff Hammond
> Argonne Leadership Computing Facility
> jhammond at mcs.anl.gov / (630) 252-5381
> http://www.linkedin.com/in/jeffhammond
> 
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