[mpiwg-ft] FTWG Call Topics?

Anthony Skjellum skjellum at gmail.com
Wed Jun 21 16:07:10 CDT 2017


Hi, Could we write MPI programs with only MPI_Reinit()?  Skip MPI_Init()...
Regards,
Tony


On Wed, Jun 21, 2017 at 2:44 PM, Aurelien Bouteiller <bouteill at icl.utk.edu>
wrote:

> The minutes of the call discussing the Init issue can be found here:
> https://github.com/mpiwg-ft/ft-issues/wiki/2017-06-21
>
> On Jun 21, 2017, at 13:54, Bland, Wesley <wesley.bland at intel.com> wrote:
>
> Sounds good. We'll go ahead and hold the call then.
>
> On Jun 21, 2017, at 12:41 PM, Aurelien Bouteiller <bouteill at icl.utk.edu>
> wrote:
>
> I am available today for discussion. I think we can use some time to
> discuss the MPI Init issue, and keep the FA-MPI presentation for next
> meeting if that’s ok with all.
>
> We can use the Zoom room for the meeting today at 3pm EST
> :
> Aurelien Bouteiller is inviting you to a scheduled Zoom meeting.
>
> Topic: MPI Forum FT-WG
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>
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> Aurelien
>
> On Jun 21, 2017, at 13:29, Anthony Skjellum <skjellum at auburn.edu> wrote:
>
> Hi all, I am OK if we cancel too, but at the next meeting we hold, I
> wanted to do an update about FA-MPI work and answer questions people have
> about our approach to it.
> Since this came up a couple calls ago.  It would be fine to wait for next
> call slot to do this... We are actively extending FA-MPI at this time.
> Tony
>
>
> Anthony Skjellum, PhD
> Professor of Computer Science and Software Engineering and
>  Charles D. McCrary Eminent Scholar Endowed Chair
> Director of the Charles D. McCrary Institute
> Samuel Ginn College of Engineering
> Auburn University
> e-mail: skjellum at auburn.edu or skjellum at gmail.com
> web sites: http://cyber.auburn.edu     http://mccrary.auburn.edu
> cell: +1-205-807-4968 <(205)%20807-4968> ; office: +1-334-844-6360
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> ________________________________________
> From: mpiwg-ft <mpiwg-ft-bounces at lists.mpi-forum.org> on behalf of
> Ignacio Laguna <lagunaperalt1 at llnl.gov>
> Sent: Wednesday, June 21, 2017 12:17 PM
> To: MPI WG Fault Tolerance and Dynamic Process Control working Group;
> Bland, Wesley
> Subject: Re: [mpiwg-ft] FTWG Call Topics?
>
> I'm okay if we cancel.
>
> On a different note, I wanted to ask the group about the error handler
> for MPI_Init. As I look into the problem of MPI re-initialization, I
> came across some questions, which I'm not been able to answer myself by
> reading the standard:
>
> - Since one cannot set an error handler before MPI_Init, is is expected
> that MPI_ERRORS_ARE_FATAL is enabled when MPI_Init is called? If that is
> the case, one can assume that if an error occurs the first time MPI_Init
> is called (let's assume in the future we can call MPI_Init several
> times), MPI will abort?
>
> - Is there any situation, in which MPI_Init could return an error code
> if a failure occurs?
>
> - Is there a way to set MPI_ERROR_RETURN in COMM_WORLD before calling
> MPI_Init?
>
> I realize this was discussed in 2010, but I'm not sure if the forum
> found a solution:
> https://lists.mpi-forum.org/pipermail/mpiwg-ft/2010-August/000500.html
>
> Thanks!
>
> --
> Ignacio Laguna
> Center for Applied Scientific Computing (CASC)
> Lawrence Livermore National Laboratory
> Phone: 925-422-7308 <(925)%20422-7308>, Fax: 925-422-6287
> <(925)%20422-6287>
>
> On 6/21/17 9:40 AM, Bland, Wesley wrote:
>
> I don't have any topics for today's FTWG con call. Does anyone have
> anything they want to discuss?
>
> Should we cancel?
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-- 
Anthony Skjellum, PhD
skjellum at gmail.com
Cell: +1-205-807-4968
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