[mpiwg-p2p] [EXTERNAL] Re: [Mpi-forum] Point-to-point working group

Sun Jan 26 07:55:34 CST 2014

Hi P2P Folk,

In terms of an application that can benefit from streams/pipes between MPI
processes, the CORAL MCB benchmark
(https://asc.llnl.gov/CORAL-benchmarks/) might
be a good motivator.  This is a stand-in for neutron transport codes where
particles move through the domain and could have multiple domain partition
crossings (move from one process to another) during a single timestep.
 Within a timestep, processes poll for incoming particles and send exiting
particles to neighboring processes.  The communication pattern is data
dependent and AFAIK unpredictable.  There is effectively a communication
pipe between pairs of neighboring processes where the application wants to
push/pop particles.

 ~Jim.

On Mon, Jan 20, 2014 at 10:25 AM, Barrett, Brian W <bwbarre at sandia.gov>wrote:

> Jeff -
>
> Thanks for the reminder.  We had a meeting two weeks ago, the notes are on
> the web page:
>
>   https://svn.mpi-forum.org/trac/mpi-forum-web/wiki/PtpWikiPage
>
> There's another meeting at 11:00am Central today.  Someone scheduled a
> meeting I can't reschedule for 10:30 - 11:00 this morning, so I'm going to
> be 5 minutes late.  Call in information is on the Wiki page.
>
> Brian
>
> On 1/18/14 9:36 AM, "Jeff Hammond" <jeff.science at gmail.com> wrote:
>
> >What's going on with this?
> >
> >Jeff
> >
> >On Wed, Dec 11, 2013 at 1:27 PM, Barrett, Brian W <bwbarre at sandia.gov>
> >wrote:
> >> Hi all -
> >>
> >> At the Forum today, progress was made at re-instituting the
> >>point-to-point
> >> working group.  We'll initially be focusing on the point-to-point reduce
> >> and the unknown message size receive problem.  If you're interested in
> >> joining in, please join the mailing list:
> >>
> >>   http://lists.mpi-forum.org/mailman/listinfo.cgi/mpiwg-p2p
> >>
> >> There's also a bi-weekly telecon, which will be every other Monday from
> >> 12:00 - 1:00pm EST, starting Jan 6th.  Call-in details are below.
> >>
> >> Brian
> >>
> >> --
> >>   Brian W. Barrett
> >>   Scalable System Software Group
> >>   Sandia National Laboratories
> >>
> >>
> >> When: Occurs on Monday every other week from 12:00 PM to 1:00 PM
> >>effective
> >> 1/6/2014. (UTC-05:00) Eastern Time (US & Canada)
> >>
> >> *~*~*~*~*~*~*~*~*~*
> >>
> >> Topic: MPI Forum Pt2Pt working group
> >> Date: Every 2 weeks on Monday, from Monday, January 6, 2014 to no end
> >>date
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> >>
> >>
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> >
> >
> >--
> >Jeff Hammond
> >jeff.science at gmail.com
> >_______________________________________________
> >mpiwg-p2p mailing list
> >mpiwg-p2p at lists.mpi-forum.org
> >http://lists.mpi-forum.org/mailman/listinfo.cgi/mpiwg-p2p
>
>
> --
>   Brian W. Barrett
>   Scalable System Software Group
>   Sandia National Laboratories
>
>
>
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