[mpiwg-hybridpm] Info Keys Ticket

[Jim Dinan]

Jeff pointed out that he already did this for us on #381 (thanks!).  I
copied that info over to the new ticket:

https://svn.mpi-forum.org/trac/mpi-forum-web/ticket/461#comment:2

 ~Jim.

On Thu, Nov 20, 2014 at 2:50 PM, Jim Dinan <james.dinan at gmail.com> wrote:

> Hi Dan,
>
> Sure, let's gather what we can.  For these info keys, the benefit is
> fairly straightforward.  For communicators with wildcard restrictions you
> can use a structure that is much more efficient to search than a single
> ordered list.  In addition, when you have multiple communication channels
> (e.g. shared memory, multiple rails, etc) no_any_source removes a lot of
> complications and overheads.
>
>  ~Jim.
>
> On Thu, Nov 20, 2014 at 2:09 PM, Daniel Holmes <dholmes at epcc.ed.ac.uk>
> wrote:
>
>>  Hi All,
>>
>> One of the objections last time was that these keys seem like a good idea
>> for performance but there's no implementation/proof. We'll need to collate
>> some of the existing research that shows this gives a performance benefit
>> in order to address that objection.
>>
>> Cheers,
>> Dan.
>>
>>
>> On 20/11/2014 13:03, Jim Dinan wrote:
>>
>> Hi All,
>>
>>  I would like to bring forward the following ticket on communicator info
>> keys for a formal reading at the upcoming meeting:
>> https://svn.mpi-forum.org/trac/mpi-forum-web/ticket/461.
>>
>>  This ticket contains the no_any_tag and no_any_source info keys from
>> #381 on which we were able to reach consensus.  There are lots of other
>> good ideas on #318, and we will continue to work on moving those ahead.
>>
>>  Please send feedback.  The deadline for changes to the proposal is
>> Sunday.
>>
>>  Thanks,
>>  ~Jim.
>>
>>
>> _______________________________________________
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>>
>>
>> --
>> Dan Holmes
>> Applications Consultant in HPC Research
>> EPCC, The University of Edinburgh
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>>
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>>
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>
>
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