[mpiwg-ft] FTWG Call Today

Wed Mar 15 10:41:10 CDT 2017

Hey Ignacio, 

Murali wanted to touch with you on that exact issue. The bottom line is that a setjump must be in the same stack frame as the long jump, which means that you can jump only to a function in which you are nested in. In many cases that means you can’t “hide” set jumps points in the library, as they have to be called in the application function context (so that they remain in your frame). 

Best, 
Aurelien

> On Mar 14, 2017, at 18:15, Ignacio Laguna <lagunaperalt1 at llnl.gov> wrote:
> 
> Thanks for sharing the minutes.
> 
> In the "scoped reinit-like approaches", there is the point of "still subject to the longjmp complication". Can folks comment on what is the issue with respect to setjump/longjump in global-restart approaches, such as Reinit and/or Fenix?
> 
> Thanks!
> 
> Ignacio
> 
> 
> On 3/14/17 1:49 PM, Aurelien Bouteiller wrote:
>> Minutes for the call have been posted here:
>> https://github.com/mpiwg-ft/ft-issues/wiki/2017-03-14 <https://github.com/mpiwg-ft/ft-issues/wiki/2017-03-14>
>> 
>>> On Mar 14, 2017, at 15:00, Aurelien Bouteiller <bouteill at icl.utk.edu <mailto:bouteill at icl.utk.edu>
>>> <mailto:bouteill at icl.utk.edu <mailto:bouteill at icl.utk.edu>>> wrote:
>>> 
>>> Hi there,
>>> 
>>> Aurelien Bouteiller is inviting you to a scheduled Zoom meeting.
>>> 
>>> Topic: MPI FT WG
>>> Time: Mar 14, 2017 3:00 PM Eastern Time (US and Canada)
>>> 
>>> Join from PC, Mac, Linux, iOS or
>>> Android: https://tennessee.zoom.us/j/607816420?pwd=MuG6Nboy9%2Fo%3D <https://tennessee.zoom.us/j/607816420?pwd=MuG6Nboy9%2Fo%3D>
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>>> +16465588656,607816420#
>>> 
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>>> 
>>> 
>>>> On Mar 14, 2017, at 10:54, Aurelien Bouteiller <bouteill at icl.utk.edu <mailto:bouteill at icl.utk.edu>
>>>> <mailto:bouteill at icl.utk.edu <mailto:bouteill at icl.utk.edu>>> wrote:
>>>> 
>>>> Hi all,
>>>> 
>>>> We have the FTWG call scheduled for today. I’d like to debrief the
>>>> latest MPI forum activities, and continue the discussion on
>>>> converging localized and globalized recovery.
>>>> 
>>>> I attach here the slide I used during the WG time.
>>>> <20170228-mpiforum-errwg.pptx>
>>>> 
>>>> We may also want to decide the time for our future meeting based on
>>>> the doodle poll initiated by Wesley a while back.
>>>> http://doodle.com/poll/s5uvmpux4nc6ki4y#table
>>>> 
>>>> ===
>>>> Looking back at the notes from our last call in December, I believe
>>>> the TODO items are for Aurelien, Ignacio, and myself to flesh out the
>>>> three FT recovery proposals and then see how they would interact with
>>>> each other.
>>>> 
>>>> * I believe Aurelien had some ideas about how to overcome some of the
>>>> problems raised at the last meeting. Aurelien, if you could put
>>>> together a slide or two that we could use for the discussion, that
>>>> would probably be helpful.
>>>> * I'm not sure of the status of Ignacio putting together some slides
>>>> for the reinit proposal. If I remember the meeting long ago in San
>>>> Jose, we just looked at a header. It might be nice to have something
>>>> a little more high level to point to.
>>>> * I still need to make the slides for the auto recovery strategy that
>>>> Martin proposed.
>>>> 
>>>> Once that's done, we can see where these things interact and how
>>>> difficult it would be to support them together.
>>>> 
>>>> Thoughts?
>>>> Wesley
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>>> 
>> 
>> 
>> 
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