[Mpi-forum] [MPI Forum] #286: Noncollective Communicator Creation

[Jim Dinan]

Fair enough.  If we want to have info arguments to communicator 
constructors moving forward (as MPI_Comm_dup_info implies), then we 
should add the argument to this routine.

  ~Jim.

On 7/18/12 2:45 PM, William Gropp wrote:
> I suspect the info hint
>
> nowildcards=true
>
> would be useful for some implementations.  Note also the MPI_Comm_dup_info call; its not just split_type.
>
> Bill
>
> William Gropp
> Director, Parallel Computing Institute
> Deputy Director for Research
> Institute for Advanced Computing Applications and Technologies
> Paul and Cynthia Saylor Professor of Computer Science
> University of Illinois Urbana-Champaign
>
>
>
> On Jul 18, 2012, at 2:43 PM, MPI Forum wrote:
>
>> #286: Noncollective Communicator Creation
>> -------------------------------------+-------------------------------------
>>                   Reporter:  jdinan  |                          Owner:
>>                       Type:  New     |  jdinan
>>   routine(s)                         |                         Status:
>>                   Priority:  Passed  |  assigned
>>                    Version:  MPI     |                      Milestone:
>>   3.0                                |  2012/05/28 Japan
>>                   Keywords:          |                     Resolution:
>>   communicators                      |          Implementation status:
>>         Author: Bill Gropp:  0       |  Completed
>>         Author: Adam Moody:  0       |            Author: Rich Graham:  0
>>      Author: Dick Treumann:  0       |        Author: Torsten Hoefler:  0
>>     Author: George Bosilca:  0       |  Author: Jesper Larsson Traeff:  0
>> Author: Bronis de Supinski:  0       |             Author: David Solt:  0
>>       Author: Jeff Squyres:  0       |          Author: Rajeev Thakur:  0
>> Author: Rolf Rabenseifner:  0       |      Author: Alexander Supalov:  0
>> -------------------------------------+-------------------------------------
>>
>> Comment (by jdinan):
>>
>> I don't think we ever had a use case for the info argument, so we never
>> added it.  The info key in MPI_Comm_split_type was added to allow the user
>> to specify machine topology hints.
>>
>> --
>> Ticket URL: <https://svn.mpi-forum.org/trac/mpi-forum-web/ticket/286#comment:16>
>> MPI Forum <https://svn.mpi-forum.org/>
>> MPI Forum
>
>
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