November 2018 - mpiwg-ft - mailman3.cels.anl.gov

Canceled: Fault Tolerance Working Group Con Call
by Bland, Wesley 28 Nov '18

28 Nov '18

No meeting this week. F2F meeting next week in San Jose

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Re: [mpiwg-ft] FTWG Call Tomorrow
by Bland, Wesley 28 Nov '18

28 Nov '18

Yep. That’s the plan. We have half a day so we can potentially have some discussion and then start working on dividing out text. > On Nov 27, 2018, at 5:15 PM, Laguna Peralta, Ignacio <lagunaperalt1(a)llnl.gov> wrote: > > I plan to attend the FTWG on Tuesday. > > I agree with the general direction for the next steps. I believe that > what we discussed was to enable basic mechanisms for failure detection, > (and possibly some form of failure notification) and to leave recovery > mechanisms for later. Am I right? Should we set some time at the FTWG to > discuss this? > > Ignacio > > > On 11/27/18 11:31 AM, Bland, Wesley via mpiwg-ft wrote: >> Hi all, >> >> Unfortunately, I have a conflict that’s come up tomorrow that I can’t move around so I’ll be unable to attend the FTWG call. I’m not sure if there’s much for us to discuss unless Aurelien has something new about the Init/Finalize PR. I think that’s pretty much locked down by the 2 week deadline though, so if there are no objections, I propose we cancel and meet up next week for the F2F meeting in California. The FTWG time is Tuesday afternoon so hopefully everyone can make it. >> >> For now, I think the plan will be to work on the next FT project which is deciding what to do with the rest of the ULFM proposal. I believe the next thing we’d previously planned was to work on the generic FT definitions and specifications in the “intro” of the chapter and leave the new API functions for the next step after that. >> >> Thanks, >> Wesley >> _______________________________________________ >> mpiwg-ft mailing list >> mpiwg-ft(a)lists.mpi-forum.org >> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-ft >>

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Re: [mpiwg-ft] FTWG Call Tomorrow
by Laguna Peralta, Ignacio 27 Nov '18

27 Nov '18

I plan to attend the FTWG on Tuesday. I agree with the general direction for the next steps. I believe that what we discussed was to enable basic mechanisms for failure detection, (and possibly some form of failure notification) and to leave recovery mechanisms for later. Am I right? Should we set some time at the FTWG to discuss this? Ignacio On 11/27/18 11:31 AM, Bland, Wesley via mpiwg-ft wrote: > Hi all, > > Unfortunately, I have a conflict that’s come up tomorrow that I can’t move around so I’ll be unable to attend the FTWG call. I’m not sure if there’s much for us to discuss unless Aurelien has something new about the Init/Finalize PR. I think that’s pretty much locked down by the 2 week deadline though, so if there are no objections, I propose we cancel and meet up next week for the F2F meeting in California. The FTWG time is Tuesday afternoon so hopefully everyone can make it. > > For now, I think the plan will be to work on the next FT project which is deciding what to do with the rest of the ULFM proposal. I believe the next thing we’d previously planned was to work on the generic FT definitions and specifications in the “intro” of the chapter and leave the new API functions for the next step after that. > > Thanks, > Wesley > _______________________________________________ > mpiwg-ft mailing list > mpiwg-ft(a)lists.mpi-forum.org > https://lists.mpi-forum.org/mailman/listinfo/mpiwg-ft >

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FTWG Call Tomorrow
by Bland, Wesley 27 Nov '18

27 Nov '18

Hi all, Unfortunately, I have a conflict that’s come up tomorrow that I can’t move around so I’ll be unable to attend the FTWG call. I’m not sure if there’s much for us to discuss unless Aurelien has something new about the Init/Finalize PR. I think that’s pretty much locked down by the 2 week deadline though, so if there are no objections, I propose we cancel and meet up next week for the F2F meeting in California. The FTWG time is Tuesday afternoon so hopefully everyone can make it. For now, I think the plan will be to work on the next FT project which is deciding what to do with the rest of the ULFM proposal. I believe the next thing we’d previously planned was to work on the generic FT definitions and specifications in the “intro” of the chapter and leave the new API functions for the next step after that. Thanks, Wesley

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Re: [mpiwg-ft] FTWG Topic Today?
by Laguna Peralta, Ignacio 07 Nov '18

07 Nov '18

I agree with the idea. We should create a ticket (or tickets) for the more generic fault-tolerance solutions. Ideally these should be FT building blocks on which specific recovery models, such as ULFM, Global Restart (Reinit), and/or FA-MPI can be built on later. I hope to contribute to this too. Ignacio On 11/7/18 6:36 AM, Bland, Wesley via mpiwg-ft wrote: > Hi folks, > > Is there anything to discuss on the call today? I think Aurelien is making edits from the last virtual meeting before another reading at the face-to-face in December. > > As a reminder, the other topic that we’ve started, but not made a lot of progress on (I hope to contribute some time here soon) is to start separating out the intro (non-ULFM specific) text from the process fault tolerance chapter and creating a separate ticket for that. > > I think all of this is work that can go on outside of the con call unless Aurelien wants to have a discussion about the current ticket today. > > Thanks, > Wesley > _______________________________________________ > mpiwg-ft mailing list > mpiwg-ft(a)lists.mpi-forum.org > https://lists.mpi-forum.org/mailman/listinfo/mpiwg-ft >

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Canceled: Fault Tolerance Working Group Con Call
by Bland, Wesley 07 Nov '18

07 Nov '18

When: Wednesday, November 07, 2018 5:00 PM-6:00 PM. UTC Where: Zoom *~*~*~*~*~*~*~*~*~* Weekly con call to discuss Fault Tolerance Topics as they relate to the MPI Standard. I’ll try to update the agenda before the call weekly (as opposed to the old way of sending a reminder email). === Join from PC, Mac, Linux, iOS or Android: https://tennessee.zoom.us/j/632356722?pwd=lI4%2F169CGcewIumekTziMw%3D%3D Password: mpiforum Or iPhone one-tap (US Toll): +14086380968,632356722# or +16465588656,632356722# Or Telephone: Dial: +1 408 638 0968 (US Toll) or +1 646 558 8656 (US Toll) Meeting ID: 632 356 722 International numbers available: https://tennessee.zoom.us/zoomconference?m=GscM59o_Qoig8v4aJl1OrsnXL-7Blrke Or an H.323/SIP room system: H.323: 162.255.37.11 (US West) or 162.255.36.11 (US East) Meeting ID: 632 356 722 Password: 366244 SIP: 632356722(a)zoomcrc.com Password: 366244

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Re: [mpiwg-ft] FTWG MPI Forum BoF Slides
by Bland, Wesley 07 Nov '18

07 Nov '18

Fair enough. I’ve made a few tweaks here: > On Nov 7, 2018, at 9:58 AM, Aurelien Bouteiller <bouteill(a)icl.utk.edu> wrote: > > Wesley you forgot to change the name of the error handler on slide 6 on the blue arrow. > > I think you are badly overselling non-catastrophic in slide 7. It is very difficult to make anything meaningful with just that, and the main rationale for introducing the change is not to support failures, but to manage resource exhaustions, I think you should recenter on this rationale instead. > > Aurelien > > >> On Nov 7, 2018, at 10:36, Bland, Wesley via mpiwg-ft <mpiwg-ft(a)lists.mpi-forum.org> wrote: >> >> Hi folks, >> >> As per usual, the FTWG will have a short presentation during the MPI Forum BoF next week at Supercomputing. I’ve put together these slide and want to give everyone a chance to take a look. Please let me know if you have any feedback by Friday so we can put the full deck together for the BoF next week. >> >> Also, if you’re attending SC, please come to the BoF on Wednesday at 12:15PM in C141/143/149. I don’t know if that’s a big room, but it sounds that way so don’t make us look silly with a small number of people in a huge room. :) >> >> Thanks, >> Wesley >> >> <2018-11-14-FTWG-BoF.pptx>_______________________________________________ >> mpiwg-ft mailing list >> mpiwg-ft(a)lists.mpi-forum.org >> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-ft >

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Re: [mpiwg-ft] FTWG MPI Forum BoF Slides
by Aurelien Bouteiller 07 Nov '18

07 Nov '18

Wesley you forgot to change the name of the error handler on slide 6 on the blue arrow. I think you are badly overselling non-catastrophic in slide 7. It is very difficult to make anything meaningful with just that, and the main rationale for introducing the change is not to support failures, but to manage resource exhaustions, I think you should recenter on this rationale instead. Aurelien > On Nov 7, 2018, at 10:36, Bland, Wesley via mpiwg-ft <mpiwg-ft(a)lists.mpi-forum.org> wrote: > > Hi folks, > > As per usual, the FTWG will have a short presentation during the MPI Forum BoF next week at Supercomputing. I’ve put together these slide and want to give everyone a chance to take a look. Please let me know if you have any feedback by Friday so we can put the full deck together for the BoF next week. > > Also, if you’re attending SC, please come to the BoF on Wednesday at 12:15PM in C141/143/149. I don’t know if that’s a big room, but it sounds that way so don’t make us look silly with a small number of people in a huge room. :) > > Thanks, > Wesley > > <2018-11-14-FTWG-BoF.pptx>_______________________________________________ > mpiwg-ft mailing list > mpiwg-ft(a)lists.mpi-forum.org > https://lists.mpi-forum.org/mailman/listinfo/mpiwg-ft

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Re: [mpiwg-ft] FTWG Topic Today?
by Aurelien Bouteiller 07 Nov '18

07 Nov '18

No lets discuss when we have new material to work on Aurelien > On Nov 7, 2018, at 09:36, Bland, Wesley via mpiwg-ft <mpiwg-ft(a)lists.mpi-forum.org> wrote: > > Hi folks, > > Is there anything to discuss on the call today? I think Aurelien is making edits from the last virtual meeting before another reading at the face-to-face in December. > > As a reminder, the other topic that we’ve started, but not made a lot of progress on (I hope to contribute some time here soon) is to start separating out the intro (non-ULFM specific) text from the process fault tolerance chapter and creating a separate ticket for that. > > I think all of this is work that can go on outside of the con call unless Aurelien wants to have a discussion about the current ticket today. > > Thanks, > Wesley > _______________________________________________ > mpiwg-ft mailing list > mpiwg-ft(a)lists.mpi-forum.org > https://lists.mpi-forum.org/mailman/listinfo/mpiwg-ft

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FTWG MPI Forum BoF Slides
by Bland, Wesley 07 Nov '18

07 Nov '18

Hi folks, As per usual, the FTWG will have a short presentation during the MPI Forum BoF next week at Supercomputing. I’ve put together these slide and want to give everyone a chance to take a look. Please let me know if you have any feedback by Friday so we can put the full deck together for the BoF next week. Also, if you’re attending SC, please come to the BoF on Wednesday at 12:15PM in C141/143/149. I don’t know if that’s a big room, but it sounds that way so don’t make us look silly with a small number of people in a huge room. :) Thanks, Wesley

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