[mpiwg-p2p] Next meeting: 30th March 2015 11am Central US

[Jeff Squyres (jsquyres)]

Sadness.  :-(

I had a little trouble connecting today, too -- had to click the "call me" 3-4 times before it succeeded.  Or try just the direct phone dialin that Jim succeeded.


> On Mar 30, 2015, at 12:11 PM, Jeff Hammond <jeff.science at gmail.com> wrote:
> 
> Webex trash refused to let me connect by 3+ means so I cannot participate. 
> 
> Jeff 
> 
> Sent from my iPhone
> 
> On Mar 30, 2015, at 5:37 AM, Daniel Holmes <dholmes at epcc.ed.ac.uk> wrote:
> 
>> Hi All,
>> 
>> The next point-to-point teleconference will be today, Monday 30th March 2015 at 11am Central US via webex.
>> 
>> Connection details are on the point-to-point wiki page:
>> https://svn.mpi-forum.org/trac/mpi-forum-web/wiki/PtpWikiPage
>> 
>> Agenda:
>> 0) Discuss/agree the to-do list (see below) that covers the next two agenda items.
>> 1) "Can INFO keys change the semantic behaviour of MPI?" issue - following the discussion at the face-to-face meeting, we seem to have a workable way forward on this issue!
>> 2) New communicator INFO keys - it looks like these will be allowed, so we should define a few and get a proposal ready for the next face-to-face meeting
>> 3) Progress on Arecv and Fsend or ReceiveReduce?
>> 4) Other stuff?
>> 
>> Cheers,
>> Dan.
>> 
>> 
>> On 23/03/2015 11:59, Dan Holmes wrote:
>>> Hi All,
>>> 
>>> At the last telco meeting, Jim asked for a to-do list of the tasks needed to move communicator assertions forward. Please find below a first draft of such a task list. Could we agree that this is a good list? If you see something odd/missing, reply to this email group.
>>> 
>>> To-do list for communicator assertions
>>> 
>>> 0) Gather evidence to support "no-one will be affected by backwards incompatibility".
>>>    (e.g. chase Pavan, who volunteered to do this for major MPICH users)
>>> 1) Change behaviour of MPI_COMM_DUP so that INFO keys are *not* propagated to new comm.
>>>    (include AtoU: if you want to dup INFO use MPI_COMM_DUP_WITH_INFO, with example)
>>> 2) Discuss whether attributes (plus, anything else?) should be propagated by MPI_COMM_DUP.
>>>    (default presumption is yes, they should still be propagated).
>>> 3) Find all occurrence of language in the MPI Standard that suggests INFO keys are hints.
>>> a) Change or remove any generic statements like "INFO keys cannot change semantics".
>>>    (e.g. change to "cannot change observable semantics" or remove)
>>> b) For each occurrence, determine if it should continue to suggest hint status
>>>    (e.g. a particular key, most likely for the I/O keys but maybe also some RMA keys)
>>> 
>>> A) Convert ticket 381 into "make comm assertions doable" proposal (by Jun 2015 - Chicago?)
>>> B) Get "no wildcard" INFO keys proposal ready for formal reading (by Jun 2015 - Chicago?)
>>> C) Get "no ordering" INFO key proposal ready for formal reading (by Jun 2015 - Chicago?)
>>> D) Get "no cancel" INFO keys proposal ready for formal reading (by Jun 2015 - Chicago?)
>>> E) Discuss other INFO key proposals, e.g. "only wildcard", "no non-blocking", "no underflow"
>>> 
>>> Cheers,
>>> Dan.
>>> 
>>> On 13/03/2015 19:22, Daniel Holmes wrote:
>>>> Hi All, 
>>>> 
>>>> The next point-to-point teleconference will be on Monday 16th March 2015 at 11am Central US via webex. 
>>>> 
>>>> Connection details are on the point-to-point wiki page: 
>>>> https://svn.mpi-forum.org/trac/mpi-forum-web/wiki/PtpWikiPage 
>>>> 
>>>> Agenda: 
>>>> 1) "Can INFO keys change the semantic behaviour of MPI?" issue - following the discussion at the face-to-face meeting, we seem to have a workable way forward on this issue! 
>>>> 2) New communicator INFO keys - it looks like these will be allowed, so we should define a few and get a proposal ready for the next face-to-face meeting 
>>>> 3) Progress on Arecv and Fsend or ReceiveReduce? 
>>>> 4) Other stuff? 
>>>> 
>>>> Cheers, 
>>>> Dan. 
>>>> 
>>> 
>>> 
>>> -- 
>>> Dan Holmes
>>> Applications Consultant in HPC Research
>>> EPCC, The University of Edinburgh
>>> James Clerk Maxwell Building
>>> The Kings Buildings
>>> Peter Guthrie Tait Road 
>>> Edinburgh
>>> EH9 3FD
>>> T: +44(0)131 651 3465
>>> E: 
>>> dholmes at epcc.ed.ac.uk
>>> 
>>> 
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>>> 
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-- 
Jeff Squyres
jsquyres at cisco.com
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