Perhaps since MPI 3.0 got everything right that it attempted to do :-) then we can skip 3.1 and move onto to 4.0, the most nonblocking-est, fault-tolerantest MPI ever! Jeff On Thu, May 31, 2012 at 4:59 PM, Jeff Squyres <[email protected]> wrote:

On May 31, 2012, at 4:58 PM, Jeff Hammond wrote:

...

It would be useful to know what is not possible for 3.1. �For example, I've been told that NBC could not have been done as MPI 2.3 because they were a major change and that can't happen on minor version releases. �Does that mean anything drastically new in form (e.g. active messages not derived from MPI_Accumulate) are off the table and have to wait for 4.0?

FWIW, the same question occurred to me, especially with references earlier today that FT and/or iFile could come back in MPI 3.1 (i.e., we explicitly did not allow new things in MPI 2.2.x).

...

Jeff

On Thu, May 31, 2012 at 3:48 PM, Richard Graham <[email protected]> wrote:

...

Comments in line

-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jeff Squyres Sent: Friday, June 01, 2012 4:21 AM To: MPI Forum list Subject: [Mpi-forum] Notes on discussions about 3.0 / 3.1?

Did anyone take any notes on the following two agenda items from the meeting this past week:

- MPI 3.1 - initial plans [rich] Not much discussion at this stage. �The one thing I do remember is that we started to discuss voting, given that we are moving to a format of meeting once a quarter. �One of the things suggested was that we have a day in �between meetings for voting, doing this over the phone, but with attendance at the regular meetings continuing to determine voting elegibility.

- MPI 3.0 - Draft standard [rich] (1) �Push to get all the voted in tickets into the draft standard by JUNE 15th. �This requires ticket owners and chapter committees to work together. �Chapter authors that don't participate would be replaced by others that will help get the revised text into the draft standard. (2) The July Chicago meeting will be devoted solely for getting the draft standard into final form. �Last second votes will take place on Monday, with the rest of the time dedicated to chapter committee work. �(3) The draft standard will be posted for public comment after the meeting, giving people time to comment before the final votes in Vienna.

Rich

I wasn't at the meeting, but would love to hear what the general discussion was around these two topics.

Thanks.

-- Jeff Squyres [email protected] For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/

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-- Jeff Hammond Argonne Leadership Computing Facility University of Chicago Computation Institute [email protected] / (630) 252-5381 http://www.linkedin.com/in/jeffhammond https://wiki.alcf.anl.gov/parts/index.php/User:Jhammond

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-- Jeff Squyres [email protected] For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/

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-- Jeff Hammond Argonne Leadership Computing Facility University of Chicago Computation Institute [email protected] / (630) 252-5381 http://www.linkedin.com/in/jeffhammond https://wiki.alcf.anl.gov/parts/index.php/User:Jhammond