- mpiwg-persistence - mailman3.cels.anl.gov

Completion call before all partitions marked ready
by Joachim Protze 21 Sep '22

21 Sep '22

Hello wg-persistence, Looking at the MPI 4.0 document, it is not clear to us, whether it is allowed to call a completion call for a partitioned communication request before all partitions are marked ready. A simple single-threaded example would be: ```C MPI_Psend_init(message, partitions, COUNT, MPI_DOUBLE, dest, tag, MPI_COMM_WORLD, MPI_INFO_NULL, &request); MPI_Start(&request); for(i = 0; i < partitions-1; ++i) { MPI_Pready(i, request); } MPI_Test(&request, &flag, MPI_STATUS_IGNORE); // flag will always be 0 MPI_Pready(partitions-1, request); MPI_Wait(&request, MPI_STATUS_IGNORE); MPI_Request_free(&request); ``` The question becomes more relevant in a multi-threaded context. One thread could finish the work early and call MPI_Wait to detect when all partitions were sent. From my understanding, the only requirement is that all partitions must be marked ready with explicit ready calls before the operation can complete. Replacing the test in above example with a wait call would result in deadlock. Best Joachim -- Dr. rer. nat. Joachim Protze IT Center Group: High Performance Computing Division: Computational Science and Engineering RWTH Aachen University Seffenter Weg 23 D 52074 Aachen (Germany) Tel: +49 241 80- 24765 Fax: +49 241 80-624765 protze(a)itc.rwth-aachen.de www.itc.rwth-aachen.de

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Re: [mpiwg-persistence] MPI Persistent/HACC/Partitioned WGs Weekly Meeting---ZOOM NOT TEAMS
by Skjellum, Anthony 14 Sep '22

14 Sep '22

Hi, our agenda for today @ 10am eastern US is Quincey Koziol continuing the discussion of async operations. Thanks, Tony Anthony Skjellum, PhD Professor of Computer Science and Chair of Excellence Director, SimCenter University of Tennessee at Chattanooga (UTC) tony-skjellum(a)utc.edu [or skjellum(a)gmail.com] cell: 205-807-4968 ________________________________ From: Skjellum, Anthony Sent: Wednesday, May 12, 2021 10:53 AM To: mpiwg-coll(a)lists.mpi-forum.org <mpiwg-coll(a)lists.mpi-forum.org>; mpiwg-persistence(a)lists.mpi-forum.org <mpiwg-persistence(a)lists.mpi-forum.org>; mpiwg-hybridpm(a)lists.mpi-forum.urg <mpiwg-hybridpm(a)lists.mpi-forum.urg> Cc: m.a.ruefenacht(a)gmail.com <m.a.ruefenacht(a)gmail.com>; Guillaume Mercier <guillaume.mercier(a)u-bordeaux.fr>; Amanzholov, Muzakhir <msamanzhol42(a)tntech.edu>; Christoph Niethammer <niethammer(a)hlrs.de>; Ghafoor, Sheikh <SGhafoor(a)tntech.edu>; Schulz, Martin <martin.w.j.schulz(a)tum.de>; Julien.JAEGER(a)CEA.FR <Julien.JAEGER(a)CEA.FR>; daniel.collis.holmes(a)gmail.com <daniel.collis.holmes(a)gmail.com>; Garzaran, Maria <maria.garzaran(a)intel.com>; Raffenetti, Kenneth J. <raffenet(a)mcs.anl.gov>; Shipley, Riley Prescott <riley-shipley(a)utc.edu>; Dosanjh, Matthew <mdosanj(a)sandia.gov>; Hugo Taboada <hugo.taboada(a)cea.fr>; jeff.science(a)gmail.com <jeff.science(a)gmail.com>; Suggs, Evan <evan-suggs(a)utc.edu>; Smith, Brian <smithbe(a)ornl.gov>; Klemm, Michael <Michael.Klemm(a)amd.com>; Patrick Bridges <patrickb(a)unm.edu>; Purushotham Bangalore <pvbangalore(a)ua.edu>; Ryan Grant <regrant233(a)gmail.com>; Wesley Bland <work(a)wesbland.com>; Bronis R. de Supinski <bronis(a)llnl.gov>; Elis, Bengisu <bengisu.elis(a)tum.de>; de Supinski, Bronis R. <desupinski1(a)llnl.gov>; Raffenetti, Ken <raffenet(a)anl.gov>; Schonbein, William Whitney <wwschon(a)sandia.gov>; McMahon, Kevin; Subramoni, Hari <subramoni.1(a)osu.edu>; Thakur, Rajeev <thakur(a)anl.gov> Subject: MPI Persistent/HACC/Partitioned WGs Weekly Meeting---ZOOM NOT TEAMS When: Wednesday, September 14, 2022 10:00 AM-11:00 AM. Where: NOTE: Zoom, not TEAMS, see below. As of May 12, 2021, WG materials being archived here https://drive.google.com/drive/folders/1dxWKDUxvzol5PQfMET2bwiiNs7rZfimX?us… Weekly: https://tennessee.zoom.us/meeting/tJIsfuqtrDsiE9S0ICfXsuy-47_0ZqWvG71z/ics?… Join from PC, Mac, Linux, iOS or Android: https://tennessee.zoom.us/j/96193520890?pwd=T3k1NkFRQ3BJaUFkeXFQcmtYTlRHQT09 Password: 399650 ---- Hi there, Anthony Skjellum is inviting you to a scheduled Zoom meeting. Topic: Partition/HACC/etc Working Groups Time: Apr 6, 2022 10:00 AM Eastern Time (US and Canada) Every week on Wed, until Jan 25, 2023, 43 occurrence(s) Apr 6, 2022 10:00 AM Apr 13, 2022 10:00 AM Apr 20, 2022 10:00 AM Apr 27, 2022 10:00 AM May 4, 2022 10:00 AM May 11, 2022 10:00 AM May 18, 2022 10:00 AM May 25, 2022 10:00 AM Jun 1, 2022 10:00 AM Jun 8, 2022 10:00 AM Jun 15, 2022 10:00 AM Jun 22, 2022 10:00 AM Jun 29, 2022 10:00 AM Jul 6, 2022 10:00 AM Jul 13, 2022 10:00 AM Jul 20, 2022 10:00 AM Jul 27, 2022 10:00 AM Aug 3, 2022 10:00 AM Aug 10, 2022 10:00 AM Aug 17, 2022 10:00 AM Aug 24, 2022 10:00 AM Aug 31, 2022 10:00 AM Sep 7, 2022 10:00 AM Sep 14, 2022 10:00 AM Sep 21, 2022 10:00 AM Sep 28, 2022 10:00 AM Oct 5, 2022 10:00 AM Oct 12, 2022 10:00 AM Oct 19, 2022 10:00 AM Oct 26, 2022 10:00 AM Nov 2, 2022 10:00 AM Nov 9, 2022 10:00 AM Nov 16, 2022 10:00 AM Nov 23, 2022 10:00 AM Nov 30, 2022 10:00 AM Dec 7, 2022 10:00 AM Dec 14, 2022 10:00 AM Dec 21, 2022 10:00 AM Dec 28, 2022 10:00 AM Jan 4, 2023 10:00 AM Jan 11, 2023 10:00 AM Jan 18, 2023 10:00 AM Jan 25, 2023 10:00 AM Please download and import the following iCalendar (.ics) files to your calendar system. Weekly: https://tennessee.zoom.us/meeting/tJIsfuqtrDsiE9S0ICfXsuy-47_0ZqWvG71z/ics?… Join from PC, Mac, Linux, iOS or Android: https://tennessee.zoom.us/j/96193520890?pwd=T3k1NkFRQ3BJaUFkeXFQcmtYTlRHQT09 Password: 399650 Or iPhone one-tap (US Toll): +16468769923,96193520890# or +13017158592,96193520890# Or Telephone: Dial: +1 646 876 9923 (US Toll) +1 301 715 8592 (US Toll) +1 312 626 6799 (US Toll) +1 669 900 6833 (US Toll) +1 253 215 8782 (US Toll) +1 346 248 7799 (US Toll) Meeting ID: 961 9352 0890 International numbers available: https://tennessee.zoom.us/u/adIMYx6Jko Or an H.323/SIP room system: H.323: 162.255.37.11 (US West) or 162.255.36.11 (US East) Meeting ID: 961 9352 0890 Password: 399650 SIP: 96193520890(a)zoomcrc.com Password: 399650 <https://teams.microsoft.com/meetingOptions/?organizerId=e544ff3d-a271-4377-…> ________________________________________________________________________________

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Canceled: MPI Persistent/HACC/Partitioned WGs Weekly Meeting---ZOOM NOT TEAMS
by Skjellum, Anthony 02 Aug '22

02 Aug '22

Sorry, I have a big deadline this week, cannot meet Collective/Persistent Group.

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No Meeting Today
by Jim Dinan 27 Jul '22

27 Jul '22

Hi All, Today was scheduled as a persistence WG meeting, but there is no agenda, so neither WG will be meeting. Best, ~Jim.

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Canceled: MPI Persistent/HACC/Partitioned WGs Weekly Meeting---ZOOM NOT TEAMS
by Skjellum, Anthony 15 Jun '22

15 Jun '22

Canceling so some of us can attend another workshop that will be of broad interest to the combined WGs.

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Canceled: MPI Persistent/HACC/Partitioned WGs Weekly Meeting---ZOOM NOT TEAMS
by Skjellum, Anthony 17 May '22

17 May '22

Forum meeting this week

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Canceled: MPI Persistent/HACC/Partitioned WGs Weekly Meeting---ZOOM NOT TEAMS
by Skjellum, Anthony 27 Apr '22

27 Apr '22

This meeting is being skipped due to "Saleshan" as described in our joint Persistent/HACC schedule

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Re: [mpiwg-persistence] MPI Persistent/HACC/Partitioned WGs Weekly Meeting---ZOOM NOT TEAMS
by Skjellum, Anthony 13 Apr '22

13 Apr '22

All: despite new schedule (it is our turn turn), we are not ready. Meeting self records if HACC folks want to meet "Ad HACC." We will respect future schedule weeks. No Persistent+ meeting today. Sorry, I am preempted by a school event that is longer than expected. Tony Anthony Skjellum, PhD Professor of Computer Science and Chair of Excellence Director, SimCenter University of Tennessee at Chattanooga (UTC) tony-skjellum(a)utc.edu [or skjellum(a)gmail.com] cell: 205-807-4968 ________________________________ From: Skjellum, Anthony Sent: Wednesday, May 12, 2021 10:53 AM To: mpiwg-coll(a)lists.mpi-forum.org <mpiwg-coll(a)lists.mpi-forum.org>; mpiwg-persistence(a)lists.mpi-forum.org <mpiwg-persistence(a)lists.mpi-forum.org>; mpiwg-hybridpm(a)lists.mpi-forum.urg <mpiwg-hybridpm(a)lists.mpi-forum.urg> Cc: m.a.ruefenacht(a)gmail.com <m.a.ruefenacht(a)gmail.com>; Guillaume Mercier <guillaume.mercier(a)u-bordeaux.fr>; Amanzholov, Muzakhir <msamanzhol42(a)tntech.edu>; Christoph Niethammer <niethammer(a)hlrs.de>; Ghafoor, Sheikh <SGhafoor(a)tntech.edu>; Schulz, Martin <martin.w.j.schulz(a)tum.de>; Julien.JAEGER(a)CEA.FR <Julien.JAEGER(a)CEA.FR>; daniel.collis.holmes(a)gmail.com <daniel.collis.holmes(a)gmail.com>; Garzaran, Maria <maria.garzaran(a)intel.com>; Raffenetti, Kenneth J. <raffenet(a)mcs.anl.gov>; Shipley, Riley Prescott <riley-shipley(a)utc.edu>; Dosanjh, Matthew <mdosanj(a)sandia.gov>; Hugo Taboada <hugo.taboada(a)cea.fr>; jeff.science(a)gmail.com <jeff.science(a)gmail.com>; Suggs, Evan <evan-suggs(a)utc.edu>; Smith, Brian <smithbe(a)ornl.gov>; Klemm, Michael <Michael.Klemm(a)amd.com>; Patrick Bridges <patrickb(a)unm.edu>; Purushotham Bangalore <pvbangalore(a)ua.edu>; Ryan Grant <regrant233(a)gmail.com>; Wesley Bland <work(a)wesbland.com>; Bronis R. de Supinski <bronis(a)llnl.gov>; Elis, Bengisu <bengisu.elis(a)tum.de>; de Supinski, Bronis R. <desupinski1(a)llnl.gov>; Wozniak, Justin M. <woz(a)anl.gov>; Patrick Bridges; Thakur, Rajeev <thakur(a)anl.gov> Subject: MPI Persistent/HACC/Partitioned WGs Weekly Meeting---ZOOM NOT TEAMS When: Wednesday, April 13, 2022 10:00 AM-11:00 AM. Where: NOTE: Zoom, not TEAMS, see below. As of May 12, 2021, WG materials being archived here https://drive.google.com/drive/folders/1dxWKDUxvzol5PQfMET2bwiiNs7rZfimX?us… Weekly: https://tennessee.zoom.us/meeting/tJIsfuqtrDsiE9S0ICfXsuy-47_0ZqWvG71z/ics?… Join from PC, Mac, Linux, iOS or Android: https://tennessee.zoom.us/j/96193520890?pwd=T3k1NkFRQ3BJaUFkeXFQcmtYTlRHQT09 Password: 399650 ---- Hi there, Anthony Skjellum is inviting you to a scheduled Zoom meeting. Topic: Partition/HACC/etc Working Groups Time: Apr 6, 2022 10:00 AM Eastern Time (US and Canada) Every week on Wed, until Jan 25, 2023, 43 occurrence(s) Apr 6, 2022 10:00 AM Apr 13, 2022 10:00 AM Apr 20, 2022 10:00 AM Apr 27, 2022 10:00 AM May 4, 2022 10:00 AM May 11, 2022 10:00 AM May 18, 2022 10:00 AM May 25, 2022 10:00 AM Jun 1, 2022 10:00 AM Jun 8, 2022 10:00 AM Jun 15, 2022 10:00 AM Jun 22, 2022 10:00 AM Jun 29, 2022 10:00 AM Jul 6, 2022 10:00 AM Jul 13, 2022 10:00 AM Jul 20, 2022 10:00 AM Jul 27, 2022 10:00 AM Aug 3, 2022 10:00 AM Aug 10, 2022 10:00 AM Aug 17, 2022 10:00 AM Aug 24, 2022 10:00 AM Aug 31, 2022 10:00 AM Sep 7, 2022 10:00 AM Sep 14, 2022 10:00 AM Sep 21, 2022 10:00 AM Sep 28, 2022 10:00 AM Oct 5, 2022 10:00 AM Oct 12, 2022 10:00 AM Oct 19, 2022 10:00 AM Oct 26, 2022 10:00 AM Nov 2, 2022 10:00 AM Nov 9, 2022 10:00 AM Nov 16, 2022 10:00 AM Nov 23, 2022 10:00 AM Nov 30, 2022 10:00 AM Dec 7, 2022 10:00 AM Dec 14, 2022 10:00 AM Dec 21, 2022 10:00 AM Dec 28, 2022 10:00 AM Jan 4, 2023 10:00 AM Jan 11, 2023 10:00 AM Jan 18, 2023 10:00 AM Jan 25, 2023 10:00 AM Please download and import the following iCalendar (.ics) files to your calendar system. Weekly: https://tennessee.zoom.us/meeting/tJIsfuqtrDsiE9S0ICfXsuy-47_0ZqWvG71z/ics?… Join from PC, Mac, Linux, iOS or Android: https://tennessee.zoom.us/j/96193520890?pwd=T3k1NkFRQ3BJaUFkeXFQcmtYTlRHQT09 Password: 399650 Or iPhone one-tap (US Toll): +16468769923,96193520890# or +13017158592,96193520890# Or Telephone: Dial: +1 646 876 9923 (US Toll) +1 301 715 8592 (US Toll) +1 312 626 6799 (US Toll) +1 669 900 6833 (US Toll) +1 253 215 8782 (US Toll) +1 346 248 7799 (US Toll) Meeting ID: 961 9352 0890 International numbers available: https://tennessee.zoom.us/u/adIMYx6Jko Or an H.323/SIP room system: H.323: 162.255.37.11 (US West) or 162.255.36.11 (US East) Meeting ID: 961 9352 0890 Password: 399650 SIP: 96193520890(a)zoomcrc.com Password: 399650 <https://teams.microsoft.com/meetingOptions/?organizerId=e544ff3d-a271-4377-…> ________________________________________________________________________________

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MPI Persistent/HACC/Partitioned WGs Weekly Meeting---ZOOM NOT TEAMS
by Skjellum, Anthony 06 Apr '22

06 Apr '22

NOTE: Zoom, not TEAMS, see below. As of May 12, 2021, WG materials being archived here https://drive.google.com/drive/folders/1dxWKDUxvzol5PQfMET2bwiiNs7rZfimX?us… Weekly: https://tennessee.zoom.us/meeting/tJIsfuqtrDsiE9S0ICfXsuy-47_0ZqWvG71z/ics?… Join from PC, Mac, Linux, iOS or Android: https://tennessee.zoom.us/j/96193520890?pwd=T3k1NkFRQ3BJaUFkeXFQcmtYTlRHQT09 Password: 399650 ---- Hi there, Anthony Skjellum is inviting you to a scheduled Zoom meeting. Topic: Partition/HACC/etc Working Groups Time: Apr 6, 2022 10:00 AM Eastern Time (US and Canada) Every week on Wed, until Jan 25, 2023, 43 occurrence(s) Apr 6, 2022 10:00 AM Apr 13, 2022 10:00 AM Apr 20, 2022 10:00 AM Apr 27, 2022 10:00 AM May 4, 2022 10:00 AM May 11, 2022 10:00 AM May 18, 2022 10:00 AM May 25, 2022 10:00 AM Jun 1, 2022 10:00 AM Jun 8, 2022 10:00 AM Jun 15, 2022 10:00 AM Jun 22, 2022 10:00 AM Jun 29, 2022 10:00 AM Jul 6, 2022 10:00 AM Jul 13, 2022 10:00 AM Jul 20, 2022 10:00 AM Jul 27, 2022 10:00 AM Aug 3, 2022 10:00 AM Aug 10, 2022 10:00 AM Aug 17, 2022 10:00 AM Aug 24, 2022 10:00 AM Aug 31, 2022 10:00 AM Sep 7, 2022 10:00 AM Sep 14, 2022 10:00 AM Sep 21, 2022 10:00 AM Sep 28, 2022 10:00 AM Oct 5, 2022 10:00 AM Oct 12, 2022 10:00 AM Oct 19, 2022 10:00 AM Oct 26, 2022 10:00 AM Nov 2, 2022 10:00 AM Nov 9, 2022 10:00 AM Nov 16, 2022 10:00 AM Nov 23, 2022 10:00 AM Nov 30, 2022 10:00 AM Dec 7, 2022 10:00 AM Dec 14, 2022 10:00 AM Dec 21, 2022 10:00 AM Dec 28, 2022 10:00 AM Jan 4, 2023 10:00 AM Jan 11, 2023 10:00 AM Jan 18, 2023 10:00 AM Jan 25, 2023 10:00 AM Please download and import the following iCalendar (.ics) files to your calendar system. Weekly: https://tennessee.zoom.us/meeting/tJIsfuqtrDsiE9S0ICfXsuy-47_0ZqWvG71z/ics?… Join from PC, Mac, Linux, iOS or Android: https://tennessee.zoom.us/j/96193520890?pwd=T3k1NkFRQ3BJaUFkeXFQcmtYTlRHQT09 Password: 399650 Or iPhone one-tap (US Toll): +16468769923,96193520890# or +13017158592,96193520890# Or Telephone: Dial: +1 646 876 9923 (US Toll) +1 301 715 8592 (US Toll) +1 312 626 6799 (US Toll) +1 669 900 6833 (US Toll) +1 253 215 8782 (US Toll) +1 346 248 7799 (US Toll) Meeting ID: 961 9352 0890 International numbers available: https://tennessee.zoom.us/u/adIMYx6Jko Or an H.323/SIP room system: H.323: 162.255.37.11 (US West) or 162.255.36.11 (US East) Meeting ID: 961 9352 0890 Password: 399650 SIP: 96193520890(a)zoomcrc.com Password: 399650 <https://teams.microsoft.com/meetingOptions/?organizerId=e544ff3d-a271-4377-…> ________________________________________________________________________________

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Canceled: MPI Persistent/Collective/Partitioned/Accelerator WGs Weekly Meeting
by Skjellum, Anthony 23 Mar '22

23 Mar '22

We will not meet this week. HACC will meet next week, then we will regroup around the open tickets. Sorry for late cancelation.

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