January 2019 - mpiwg-tools - mailman3.cels.anl.gov

Meeting reminder: Jan 31, 2019 (today)
by Marc-Andre Hermanns 31 Jan '19

31 Jan '19

Hi everyone, This is a reminder of our regularly scheduled call today January 31 at 8 am Pacific / 11 am Eastern / 5pm CET. Webex Info: https://apps.fz-juelich.de/scalasca/mpiwg-tools-webex/index.php *IMPORTANT*: The webex information has been updated for 2019, so be sure to get the new info. Agenda: ------- - Events: Discuss latest changes to API - UIDs: Latest discussions (moving to strings) Cheers, Marc-Andre -- Dr. Marc-Andre Hermanns Jülich Aachen Research Alliance, High Performance Computing (JARA-HPC) Jülich Supercomputing Centre (JSC) Wilhelm-Johnen-Str. 52425 Jülich Germany Phone: +49 2461 61 2509 | +49 241 80 24381 Fax: +49 2461 80 6 99753 www.jara.org/jara-hpc email: hermanns(a)jara.rwth-aachen.de

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Re: [mpiwg-tools] Meeting reminder: Jan 24, 2019 (today)
by Marc-Andre Hermanns 24 Jan '19

24 Jan '19

Hi everyone, the notes of our meeting today are in the wiki at: https://github.com/mpiwg-tools/tools-issues/wiki/Notes-2019-01-24 Cheers, Marc-Andre On 24.01.19 08:47, Marc-Andre Hermanns wrote: > Hi everyone, > > This is a reminder of our regularly scheduled call today January 24 at > 8 am Pacific / 11 am Eastern / 5pm CET. > > Webex Info: > https://apps.fz-juelich.de/scalasca/mpiwg-tools-webex/index.php > > *IMPORTANT*: The webex information has been updated for 2019, so be > sure to get the new info. > > > Agenda: > ------- > - Events: Feedback from yesterday's Virtual Meeting > - UIDs: Latest discussions (moving to strings) > > Cheers, > Marc-Andre > > > _______________________________________________ > mpiwg-tools mailing list > mpiwg-tools(a)lists.mpi-forum.org > https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools > -- Dr. Marc-Andre Hermanns Jülich Aachen Research Alliance, High Performance Computing (JARA-HPC) Jülich Supercomputing Centre (JSC) Wilhelm-Johnen-Str. 52425 Jülich Germany Phone: +49 2461 61 2509 | +49 241 80 24381 Fax: +49 2461 80 6 99753 www.jara.org/jara-hpc email: hermanns(a)jara.rwth-aachen.de

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Meeting reminder: Jan 24, 2019 (today)
by Marc-Andre Hermanns 24 Jan '19

24 Jan '19

Hi everyone, This is a reminder of our regularly scheduled call today January 24 at 8 am Pacific / 11 am Eastern / 5pm CET. Webex Info: https://apps.fz-juelich.de/scalasca/mpiwg-tools-webex/index.php *IMPORTANT*: The webex information has been updated for 2019, so be sure to get the new info. Agenda: ------- - Events: Feedback from yesterday's Virtual Meeting - UIDs: Latest discussions (moving to strings) Cheers, Marc-Andre -- Dr. Marc-Andre Hermanns Jülich Aachen Research Alliance, High Performance Computing (JARA-HPC) Jülich Supercomputing Centre (JSC) Wilhelm-Johnen-Str. 52425 Jülich Germany Phone: +49 2461 61 2509 | +49 241 80 24381 Fax: +49 2461 80 6 99753 www.jara.org/jara-hpc email: hermanns(a)jara.rwth-aachen.de

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Re: [mpiwg-tools] Meeting reminder: Jan 17, 2019 (today)
by Marc-Andre Hermanns 18 Jan '19

18 Jan '19

Hi Martin, The idea to allow these is that I would like Tools to only intercept a few MPI calls (i.e., MPI_Init, MPI_Init_thread, MPI_Finalize) and be fully functional. This includes the possibility to allocate and free handles sometime in the middle of the execution of an MPI programm. If only Init and Finalize are intercepted tools would not have an opportunity of handle allocation/deallocation before the end of the program (at Finalize). Also discussed yesterday, we want to allow an implementation to return a specific error code (MPI_T_ERR_NOT_ACCESSIBLE) to indicate that a specific function may not be called at the time. The idea behind this is that both allocation functions are conceptionally non-blocking (as observed by the user). From the standpoint of a user, an ALLOC behaves similar to an MPI_Isend + MPI_Request_free, as the implementation will start to raise events for the handle, yet does not really know when. The FREE is actually explicitly non-blocking. In summary, in most situations, handle allocation may be postponed beyond the callback and offloaded to some other context. Still, if even the postponing is not possible, the implementation can return MPI_T_ERR_NOT_ACCESSIBLE in those cases (a tool may try again at a later time/different callback context). With this in mind. Do you think, we should extend the list of MPI_T calls also to other allocation/free functions? Cheers, Marc-Andre On 18.01.19 11:11, schulzm(a)in.tum.de wrote: > Hi Marc-Andre, all, > > Thanks for the notes and sorry that I couldn’t make it yesterday. > > Looking over the notes, I have one question (more out of curiosity): > why include event handle alloc/free in the list of allowed calls and > not the par/cvar counterparts? Do you have a particular use case in > mind? Is the main goal to allow the removal of callbacks after events? > > Thanks, > > Martin > > > — > Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel > Systems > Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching > Email: schulzm(a)in.tum.de <mailto:[email protected]> > > > > > >> On 18. Jan 2019, at 08:12, Marc-Andre Hermanns via mpiwg-tools >> <mpiwg-tools(a)lists.mpi-forum.org >> <mailto:[email protected]>> wrote: >> >> Hi everyone, >> >> I put the notes of yesterdays meeting up on the wiki at: >> https://github.com/mpiwg-tools/tools-issues/wiki/Notes-2019-01-17 >> >> Cheers, >> Marc-Andre >> >> On 17.01.19 09:10, Marc-Andre Hermanns wrote: >>> Hi everyone, >>> >>> This is a reminder of our regularly scheduled call today January 17 at >>> 8 am Pacific / 11 am Eastern / 5pm CET. >>> >>> Webex Info: >>> https://apps.fz-juelich.de/scalasca/mpiwg-tools-webex/index.php >>> >>> *IMPORTANT*: The webex information has been updated for 2019, so be >>> sure to get the new info. >>> >>> >>> Agenda: >>> ------- >>> - Events >>> - Open Issues: CB Safety, MPI_Info parameters >>> - Preparations for Virtual Meeting at Jan 23, 2019 >>> >>> Cheers, >>> Marc-Andre >>> >>> >>> _______________________________________________ >>> mpiwg-tools mailing list >>> mpiwg-tools(a)lists.mpi-forum.org >>> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools >>> >> >> -- >> Dr. Marc-Andre Hermanns >> Jülich Aachen Research Alliance, >> High Performance Computing (JARA-HPC) >> Jülich Supercomputing Centre (JSC) >> >> Wilhelm-Johnen-Str. >> 52425 Jülich >> Germany >> >> Phone: +49 2461 61 2509 | +49 241 80 24381 >> Fax: +49 2461 80 6 99753 >> www.jara.org/jara-hpc >> email: hermanns(a)jara.rwth-aachen.de >> >> _______________________________________________ >> mpiwg-tools mailing list >> mpiwg-tools(a)lists.mpi-forum.org >> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools > -- Dr. Marc-Andre Hermanns Jülich Aachen Research Alliance, High Performance Computing (JARA-HPC) Jülich Supercomputing Centre (JSC) Wilhelm-Johnen-Str. 52425 Jülich Germany Phone: +49 2461 61 2509 | +49 241 80 24381 Fax: +49 2461 80 6 99753 www.jara.org/jara-hpc email: hermanns(a)jara.rwth-aachen.de

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Re: [mpiwg-tools] Meeting reminder: Jan 17, 2019 (today)
by schulzm＠in.tum.de 18 Jan '19

18 Jan '19

Hi Marc-Andre, all, Thanks for the notes and sorry that I couldn’t make it yesterday. Looking over the notes, I have one question (more out of curiosity): why include event handle alloc/free in the list of allowed calls and not the par/cvar counterparts? Do you have a particular use case in mind? Is the main goal to allow the removal of callbacks after events? Thanks, Martin — Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel Systems Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching Email: schulzm(a)in.tum.de > On 18. Jan 2019, at 08:12, Marc-Andre Hermanns via mpiwg-tools <mpiwg-tools(a)lists.mpi-forum.org> wrote: > > Hi everyone, > > I put the notes of yesterdays meeting up on the wiki at: > https://github.com/mpiwg-tools/tools-issues/wiki/Notes-2019-01-17 > > Cheers, > Marc-Andre > > On 17.01.19 09:10, Marc-Andre Hermanns wrote: >> Hi everyone, >> >> This is a reminder of our regularly scheduled call today January 17 at >> 8 am Pacific / 11 am Eastern / 5pm CET. >> >> Webex Info: >> https://apps.fz-juelich.de/scalasca/mpiwg-tools-webex/index.php >> >> *IMPORTANT*: The webex information has been updated for 2019, so be >> sure to get the new info. >> >> >> Agenda: >> ------- >> - Events >> - Open Issues: CB Safety, MPI_Info parameters >> - Preparations for Virtual Meeting at Jan 23, 2019 >> >> Cheers, >> Marc-Andre >> >> >> _______________________________________________ >> mpiwg-tools mailing list >> mpiwg-tools(a)lists.mpi-forum.org >> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools >> > > -- > Dr. Marc-Andre Hermanns > Jülich Aachen Research Alliance, > High Performance Computing (JARA-HPC) > Jülich Supercomputing Centre (JSC) > > Wilhelm-Johnen-Str. > 52425 Jülich > Germany > > Phone: +49 2461 61 2509 | +49 241 80 24381 > Fax: +49 2461 80 6 99753 > www.jara.org/jara-hpc > email: hermanns(a)jara.rwth-aachen.de > > _______________________________________________ > mpiwg-tools mailing list > mpiwg-tools(a)lists.mpi-forum.org > https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools

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Re: [mpiwg-tools] Meeting reminder: Jan 17, 2019 (today)
by Marc-Andre Hermanns 18 Jan '19

18 Jan '19

Hi everyone, I put the notes of yesterdays meeting up on the wiki at: https://github.com/mpiwg-tools/tools-issues/wiki/Notes-2019-01-17 Cheers, Marc-Andre On 17.01.19 09:10, Marc-Andre Hermanns wrote: > Hi everyone, > > This is a reminder of our regularly scheduled call today January 17 at > 8 am Pacific / 11 am Eastern / 5pm CET. > > Webex Info: > https://apps.fz-juelich.de/scalasca/mpiwg-tools-webex/index.php > > *IMPORTANT*: The webex information has been updated for 2019, so be > sure to get the new info. > > > Agenda: > ------- > - Events > - Open Issues: CB Safety, MPI_Info parameters > - Preparations for Virtual Meeting at Jan 23, 2019 > > Cheers, > Marc-Andre > > > _______________________________________________ > mpiwg-tools mailing list > mpiwg-tools(a)lists.mpi-forum.org > https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools > -- Dr. Marc-Andre Hermanns Jülich Aachen Research Alliance, High Performance Computing (JARA-HPC) Jülich Supercomputing Centre (JSC) Wilhelm-Johnen-Str. 52425 Jülich Germany Phone: +49 2461 61 2509 | +49 241 80 24381 Fax: +49 2461 80 6 99753 www.jara.org/jara-hpc email: hermanns(a)jara.rwth-aachen.de

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Meeting reminder: Jan 17, 2019 (today)
by Marc-Andre Hermanns 17 Jan '19

17 Jan '19

Hi everyone, This is a reminder of our regularly scheduled call today January 17 at 8 am Pacific / 11 am Eastern / 5pm CET. Webex Info: https://apps.fz-juelich.de/scalasca/mpiwg-tools-webex/index.php *IMPORTANT*: The webex information has been updated for 2019, so be sure to get the new info. Agenda: ------- - Events - Open Issues: CB Safety, MPI_Info parameters - Preparations for Virtual Meeting at Jan 23, 2019 Cheers, Marc-Andre -- Dr. Marc-Andre Hermanns Jülich Aachen Research Alliance, High Performance Computing (JARA-HPC) Jülich Supercomputing Centre (JSC) Wilhelm-Johnen-Str. 52425 Jülich Germany Phone: +49 2461 61 2509 | +49 241 80 24381 Fax: +49 2461 80 6 99753 www.jara.org/jara-hpc email: hermanns(a)jara.rwth-aachen.de

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Re: [mpiwg-tools] Meeting reminder: Jan 10, 2019
by Marc-Andre Hermanns 11 Jan '19

11 Jan '19

Dear all, I put up a draft summary of our discussion yesterday. Some parts still need more detail, but I wanted to get the gist of it online before the weekend. https://github.com/mpiwg-tools/tools-issues/wiki/Notes-2019-01-10 Feel free to expand/correct where necessary. Cheers, Marc-Andre On 10.01.19 12:54, Marc-Andre Hermanns wrote: > Hi everyone, > > also from my side a happy new year 2019. > > This is a reminder of our regularly scheduled call today January 10 at > 8 am Pacific / 11 am Eastern / 5pm CET. > > Webex Info: > https://apps.fz-juelich.de/scalasca/mpiwg-tools-webex/index.php > > *IMPORTANT*: The webex information has been updated for 2019, so be > sure to get the new info. > > > Tentative Agenda: > - UID proposal: integers vs string identifiers > - Events: CB safety > - Preparations for Virtual Meeting at Jan 23, 2019 > > Cheers, > Marc-Andre > > > _______________________________________________ > mpiwg-tools mailing list > mpiwg-tools(a)lists.mpi-forum.org > https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools > -- Dr. Marc-Andre Hermanns Jülich Aachen Research Alliance, High Performance Computing (JARA-HPC) Jülich Supercomputing Centre (JSC) Wilhelm-Johnen-Str. 52425 Jülich Germany Phone: +49 2461 61 2509 | +49 241 80 24381 Fax: +49 2461 80 6 99753 www.jara.org/jara-hpc email: hermanns(a)jara.rwth-aachen.de

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Meeting reminder: Jan 10, 2019
by Marc-Andre Hermanns 10 Jan '19

10 Jan '19

Hi everyone, also from my side a happy new year 2019. This is a reminder of our regularly scheduled call today January 10 at 8 am Pacific / 11 am Eastern / 5pm CET. Webex Info: https://apps.fz-juelich.de/scalasca/mpiwg-tools-webex/index.php *IMPORTANT*: The webex information has been updated for 2019, so be sure to get the new info. Tentative Agenda: - UID proposal: integers vs string identifiers - Events: CB safety - Preparations for Virtual Meeting at Jan 23, 2019 Cheers, Marc-Andre -- Dr. Marc-Andre Hermanns Jülich Aachen Research Alliance, High Performance Computing (JARA-HPC) Jülich Supercomputing Centre (JSC) Wilhelm-Johnen-Str. 52425 Jülich Germany Phone: +49 2461 61 2509 | +49 241 80 24381 Fax: +49 2461 80 6 99753 www.jara.org/jara-hpc email: hermanns(a)jara.rwth-aachen.de

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Re: [mpiwg-tools] Meeting reminder 1/3/2019
by Mohror, Kathryn 03 Jan '19

03 Jan '19

Hi all, Okay, I give up. I haven’t gotten the host key yet. Let’s take the day off 😊 Happy New Year! Kathryn From: mpiwg-tools <mpiwg-tools-bounces(a)lists.mpi-forum.org> On Behalf Of Mohror, Kathryn via mpiwg-tools Sent: Thursday, January 3, 2019 8:04 AM To: mpiwg-tools(a)lists.mpi-forum.org Cc: Mohror, Kathryn <mohror1(a)llnl.gov> Subject: Re: [mpiwg-tools] Meeting reminder 1/3/2019 Hi all, I’m having trouble joining the webex as I don’t seem to have the host key. Hopefully I will get it soon. Hang on. Kathryn From: mpiwg-tools <mpiwg-tools-bounces(a)lists.mpi-forum.org<mailto:[email protected]>> On Behalf Of Mohror, Kathryn via mpiwg-tools Sent: Wednesday, January 2, 2019 4:15 PM To: 'MPI Tools WG' <mpiwg-tools(a)lists.mpi-forum.org<mailto:[email protected]>> Cc: Mohror, Kathryn <mohror1(a)llnl.gov<mailto:[email protected]>> Subject: [mpiwg-tools] Meeting reminder 1/3/2019 Happy New Year everybody! This is a reminder of our regularly scheduled call tomorrow January 3 at 8 am Pacific / 11 am Eastern / 5pm CET. Webex Info: https://apps.fz-juelich.de/scalasca/mpiwg-tools-webex/index.php Probable Agenda: UID proposal: integers vs string identifiers Events: CB safety Talk to you soon! Kathryn _________________________________________________________________ Kathryn Mohror, kathryn(a)llnl.gov<mailto:[email protected]>, https://people.llnl.gov/kathryn Data Analysis Group<https://computation.llnl.gov/casc/data-analysis-group> @ Lawrence Livermore National Laboratory, Livermore, CA, USA

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