[Mpi-22] [Mpi-forum] The const proposal - Ticket 140

[Bronis R. de Supinski]

Erez:

Please do not simply withdraw it. There are a substantial
portion of us who you convinced this was a good idea and
what I saw in the feedback was that some found that it
was outside the scope of 2.2. I think some of those people
still feel it is a good idea even if that is the case.
I hope you will press for 3.0.

Bronis

On Mon, 1 Jun 2009, Erez Haba wrote:

> With this feedback of my distinguish colleagues, I don't see any point of perusing this proposal and I will be withdrawing this ticket in the next mpi forum meeting.
>
> Thanks,
> .Erez
>
> From: mpi-22-bounces_at_[hidden] [mailto:mpi-22-bounces_at_[hidden]] On Behalf Of William Gropp
> Sent: Wednesday, May 27, 2009 11:37 AM
> To: MPI 2.2
> Cc: Main MPI Forum mailing list
> Subject: Re: [Mpi-22] [Mpi-forum] The const proposal - Ticket 140
>
> This is an example of why we have two votes - to give everyone a chance to take a second look at the issues.  I'll note that the 17-10 (counting no's and abstains together) is worrisome; while a majority vote is the rule, a good standard will make a compelling argument for each feature.
>
> The process here would normally be to have a debate and then the second vote.  However, for MPI 2.2, we have the additional requirements of limited scope of change to implementations - we didn't define what that meant precisely (and that is a good thing), but there is a strong argument that limited scope of change would require at least a majority of implementations to agree that the change is minor.
>
> Bill
>
> On May 27, 2009, at 12:48 PM, Erez Haba wrote:
>
>
> Hi all, I'm not really sure how to respond to this email.  I will just note that this proposal has passed 1st vote last September with the following results.
>
> 4.     Vote topic: MPI-2.2 const for C bindings, 1st vote:
> YES:
>
> 17
>
> NO:
>
> 4
>
> ABSTAIN:
>
> 6
>
> MISSED:
>
> 0
>
> Result:
>
> Ballot passed
>
>
> http://meetings.mpi-forum.org/secretary/2008/09/votes.php
>
> since then we decided to postpone the 1st vote to add very few minor correction to ticket #46 (the original proposal) and thus created ticket #140.
>
> I believe that all the points you mention below have been discussed in the forum meeting(s).
>
> Thanks,
> .Erez
>
> From: mpi-forum-bounces_at_[hidden]<mailto:mpi-forum-bounces_at_[hidden]> [mailto:mpi-forum-bounces_at_[hidden]] On Behalf Of Richard Treumann
> Sent: Wednesday, May 27, 2009 6:53 AM
> To: Main MPI Forum mailing list
> Cc: mpi-22_at_[hidden]<mailto:mpi-22_at_[hidden]>
> Subject: [Mpi-forum] The const proposal - Ticket 140
>
>
> All -
>
> The signatories of this letter represent the majority of MPI implementors participating in the MPI Forum. We are concerned that proposal #140 ("Add const Keyword to the C bindings") has a number of issues which suggest delaying to MPI-3 would be appropriate.
>
> In particular, the proposal:
>
> - Is likely to pass a simple majority vote, but does not carry the support of the majority of MPI implementors, suggesting consensus has not been reached.
> - Changes 90+ MPI API interfaces, which is not a "trivial" change and therefore does not meet the intent of the MPI-2.2 process.
> - Is not needed to fix any serious bug in the standard text or to solve an issue that cannot easily be avoided by the MPI application.
> - Does not offer any demonstrable optimization opportunities for implementation or application, but may constrain future implementation opportunities.
>
> Therefore, we ask for your assistance in deferring proposal #140 to the MPI-3 process, where more time can be spent assessing its impact.
>
> Thank you,
>
> - Cisco: Jeff Squires
> - Intel: Alexander Supalov & Keith Underwood
> - Sandia: Brian Barrett
> - IBM: Richard Treumann
> - QLogic: Avneesh Pant
> - UTenn: George Bosilca
> - HP: David George Solt
> - UHouston: Edgar Gabriel
> - Myricom: Patrick Geoffray
> - ORNL: Richard Graham
> - Sun: Terry Dontje
> - NEC: Hubert Ritzdorf & Jesper Traeff
>
>
>
> Dick Treumann - MPI Team
> IBM Systems & Technology Group
> Dept X2ZA / MS P963 -- 2455 South Road -- Poughkeepsie, NY 12601
> Tele (845) 433-7846 Fax (845) 433-8363
> <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
>
>
>
>
>
>