[mpiwg-rma] MPI RMA status summary

[Rolf Rabenseifner]

Only about the issues on #456 (shared memory syncronization):

> For the ones requiring discussion, assign someone to organize a
> position and discussion.  We can schedule telecons to go over those
> issues.  The first item in the list is certainly in this class.

Who can organize telecons on #456.
Would it be possible to organize a RMA meeting at SC?


The position expressed by the solution #456 is based on the idea
that the MPI RMA synchronization routines should have the same
outcome when RMA PUT and GET calls are substituted by stores and loads.

The outcome for the flush routines is still not defined.

I would prefere to have an organizer of the discussion inside of
the RMA subgroup that proposed the changes for MPI-3.1
rather that I'm the organizer.
I tried to bring all the input together and hope that #456
is now state that it is consistent itsself and with the
expectations expressed by the group that published the
paper at EuroMPI on first usage of this shared memory interface.

The ticket is (together with the help of recent C11 standadization)
on a good way to be also consistent with the compiler optimizations -
in other words - the C standardization body has learnt from the
pthreads problems. Fortran is still an open question to me,
i.e., I do not know the status, see
https://svn.mpi-forum.org/trac/mpi-forum-web/ticket/456#comment:13

Best regards
Rolf 



----- Original Message -----
> From: "William Gropp" <wgropp at illinois.edu>
> To: "MPI WG Remote Memory Access working group" <mpiwg-rma at lists.mpi-forum.org>
> Sent: Thursday, September 25, 2014 4:19:14 PM
> Subject: [mpiwg-rma] MPI RMA status summary
> 
> I looked through all of the tickets and wrote a summary of the open
> issues, which I’ve attached.  I propose the following:
> 
> Determine which of these issues can be resolved by email.  A
> significant number can probably be closed with no further action.
> 
> For those requiring rework, determine if there is still interest in
> them, and if not, close them as well.
> 
> For the ones requiring discussion, assign someone to organize a
> position and discussion.  We can schedule telecons to go over those
> issues.  The first item in the list is certainly in this class.
> 
> Comments?
> 
> Bill
> 
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> mpiwg-rma at lists.mpi-forum.org
> http://lists.mpi-forum.org/mailman/listinfo.cgi/mpiwg-rma

-- 
Dr. Rolf Rabenseifner . . . . . . . . . .. email rabenseifner at hlrs.de
High Performance Computing Center (HLRS) . phone ++49(0)711/685-65530
University of Stuttgart . . . . . . . . .. fax ++49(0)711 / 685-65832
Head of Dpmt Parallel Computing . . . www.hlrs.de/people/rabenseifner
Nobelstr. 19, D-70550 Stuttgart, Germany . . . . (Office: Room 1.307)