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

Fwd: [mpiwg-sessions] notes from 7/29/19 webex
by Marc-André Hermanns 29 Jul '19

29 Jul '19

Dear all, attached you find Howard's notes on a call we just had among the people involved with PRs currently in need of MPI_Info before init (MPI_T Events, Session, FT). Cheers, Marc-Andre -------- Forwarded Message -------- Subject: [mpiwg-sessions] notes from 7/29/19 webex Date: Mon, 29 Jul 2019 18:29:45 +0000 From: Pritchard Jr., Howard via mpiwg-sessions <mpiwg-sessions(a)lists.mpi-forum.org> Reply-To: MPI Sessions working group <mpiwg-sessions(a)lists.mpi-forum.org> To: MPI Sessions working group <mpiwg-sessions(a)lists.mpi-forum.org> CC: Pritchard Jr., Howard <howardp(a)lanl.gov> Hello Folks Some notes from the 7/29/19 webex. Attending: Dan Holmes, Wesley Bland, Aurelien Bouteiller, Marc-Andre Hermanns, Howard Pritchard Dan turned on recording of the meeting. Dan pointed out a conflict about info keys – namely how they will be accessed before MPI initialization and after MPI finalization. Dan and Mark-Andre had discussed at ISC and were of the opinion that changes for MPI info keys should go into the sessions (PR 55) proposal. Sessions is being considered as a gating factor for 4.0. We need to figure out what is the difference between the info object changes in the. Aurelien says all the FT WG is wanting is to have MPI_INFO_ENV available before MPI initialization so the app can figure out what error handler has been set. Tools and Sessions don’t really care so much about this being available or not before MPI initialization. Dan discusses compromise that Sessions has taken. Wesley says FT needs MPI_Error_class and MPI_Error_string to be invocable prior to MPI initialization as well. Aurelien thinks this is in PR 50. Dan thinks the issue of argc/argv and how to fill in MPI_INFO_ENV is the key question. Aurelien thinks maybe add a new function to set MPI_INFO_ENV? Maybe a new ticket to handle this. FT group will work on this. Dan says we need to go through discrepancies between tickets. Sessions will need to pull in some of the FT adds to callable-prior-to-MPI Init to the table in Chapter 10 of PR 55. Mark-Andre raised some concerns about MPI_Info_get and error cases, but we think this will be covered by the setting-default-error handler before MPI initialization approach. Howard -- Howard Pritchard HPC-ENV Los Alamos National Laboratory -- Dr. rer. nat. Marc-André Hermanns IT Center Group: High Performance Computing Division: Computational Science and Engineering RWTH Aachen University Seffenter Weg 23 52074 Aachen Phone: +49 241 80-24381 hermanns(a)itc.rwth-aachen.de www.itc.rwth-aachen.de

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Meeting reminder: July 25, 2019
by Marc-Andre Hermanns 25 Jul '19

25 Jul '19

Hi everyone, This is a reminder of our regularly scheduled call today July 25 at 8 am Pacific / 11 am Eastern / 5pm CET. Webex Info: https://github.com/mpiwg-tools/mpi-standard/wiki *NOTE*: The WebEx information moved to to a non-public wiki. You have to be logged into Github *and* have to have access to the private Tools WG repositories. If you need access contact Kathryn or me. Agenda: ------- - QMPI: Matt LeGendre will provide details on stack-walking techniques 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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Running late
by Hermanns, Marc-André 18 Jul '19

18 Jul '19

Hi all I got delayed on my way home. Will be a couple of minutes late. Cheers Marc-Andre Sent from phone.

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Meeting reminder: July 18, 2019
by Marc-Andre Hermanns 18 Jul '19

18 Jul '19

Hi everyone, This is a reminder of our regularly scheduled call today July 18 at 8 am Pacific / 11 am Eastern / 5pm CET. Webex Info: https://github.com/mpiwg-tools/mpi-standard/wiki *NOTE*: The WebEx information moved to to a non-public wiki. You have to be logged into Github *and* have to have access to the private Tools WG repositories. If you need access contact Kathryn or me. Agenda: ------- - QMPI 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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Meeting reminder July 12, 2019 (today ... basically almost now)
by Marc-Andre Hermanns 11 Jul '19

11 Jul '19

Hi all, This is a reminder of our regularly scheduled call today July 12, 2019 at 8 am Pacific / 11 am Eastern / 5pm CET (in a couple of minutes). Webex Info: https://github.com/mpiwg-tools/mpi-standard/wiki *NOTE*: The WebEx information moved to to a non-public wiki. You have to be logged into Github *and* have to have access to the private Tools WG repositories. If you need access contact Kathryn or me. Agenda: ------- - Brief summary of yesterday's virtual meeting - Next steps Cheers, Marc-Andre -- Dr. rer. nat. Marc-André Hermanns IT Center Group: High Performance Computing Division: Computational Science and Engineering RWTH Aachen University Seffenter Weg 23 52074 Aachen Phone: +49 241 80-24381 hermanns(a)jara.rwth-aachen.de www.jara.org/jara-hpc

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Meeting reminder July 4, 2019 (today)
by Hermanns, Marc-André 04 Jul '19

04 Jul '19

Hi all, This is a reminder of our regularly scheduled call today July 4, 2019 at 8 am Pacific / 11 am Eastern / 5pm CET. Webex Info: https://github.com/mpiwg-tools/mpi-standard/wiki *NOTE*: The WebEx information moved to to a non-public wiki. You have to be logged into Github *and* have to have access to the private Tools WG repositories. If you need access contact Kathryn or me. Agenda: ------- - Upcoming virtual meeting - Review BigCount impact Cheers, Marc-Andre Sent from phone.

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