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

Re: [mpiwg-tools] Questions for the tools community
by Jeff Squyres (jsquyres) 29 Aug '19

29 Aug '19

Sure, I can be there. Thanks! > On Aug 29, 2019, at 11:05 AM, Marc-André Hermanns via mpiwg-tools <mpiwg-tools(a)lists.mpi-forum.org> wrote: > > Hi Jeff, > > sorry about the silence. As Martin already said, your mail led to some > internal discussion and we wanted to reach out beyond the tools people > on the mailing list because it seems no-one on the list is currently > able to handle Fortran descriptors, but we failed to keep you informed. > > Would you be available on *Sep 19* for the tools call? That would give > us some time to contact some people outside the working group and > they'd have time to either give feedback or organize their schedules > in a way to attend the call. > > Cheers, > Marc-Andre > > On 29.08.19 16:53, Martin Schulz via mpiwg-tools wrote: >> Hi Jeff, >> >> Due to the summer break and vacation time, especially in Europe, we >> haven’t had a chance to address this - Marc-Andre had suggested a >> tools call on this for after EuroMPI and then we’ll know more (we need >> to get tool implementors to the table who are not part of the WG). >> >> Personally, though, I fear you are right with your assumption, but I >> am happy to be proven wrong. >> >> Martin >> >> >> — >> Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel >> Systems >> Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching >> Member of the Board of Directors at the Leibniz Supercomputing Centre >> (LRZ) >> Email: schulzm(a)in.tum.de <mailto:[email protected]> >> >> >> >> >> >> >> >> >>> On 29. Aug 2019, at 16:46, Jeff Squyres (jsquyres) via mpiwg-tools >>> <mpiwg-tools(a)lists.mpi-forum.org >>> <mailto:[email protected]>> wrote: >>> >>> Should I infer from the lack of reply that no tools properly handle >>> either Fortran descriptors or the descriptor-based symbols? >>> >>> >>> >>>> On Aug 25, 2019, at 11:31 AM, Jeff Squyres (jsquyres) via >>>> mpiwg-tools <mpiwg-tools(a)lists.mpi-forum.org >>>> <mailto:[email protected]>> wrote: >>>> >>>> In Open MPI, we are finally working towards supporting Fortran >>>> descriptors for choice buffers (i.e., "TYPE(*), DIMENSION(..)"). >>>> >>>> Per MPI-3.1 p613 table 17.1, this means ***changing all the >>>> back-end symbols*** that are used for PMPI-style interception. >>>> >>>> A concrete example: >>>> >>>> - in mpif.h / the mpi module, MPI_SEND will become MPI_SEND_FTS >>>> - in the mpi_f08 module, MPI_SEND will become MPI_SEND_F08TS >>>> >>>> I.e., anywhere the application calls MPI_SEND, it will be >>>> transmogrified to either MPI_SEND_FTS or MPI_SEND_F08TS. And the >>>> choice buffer passed will be a descriptor (which may therefore be a >>>> subarray, not a contiguous buffer), not a naked pointer. >>>> >>>> Here's my questions: >>>> >>>> 1. Do any tools support Fortran descriptors as choice buffers? >>>> 2. Do any tools intercept the symbols as described in MPI-3.1 table >>>> 17.1? >>>> >>>> -- >>>> Jeff Squyres >>>> jsquyres(a)cisco.com <mailto:[email protected]> >>>> >>>> _______________________________________________ >>>> mpiwg-tools mailing list >>>> mpiwg-tools(a)lists.mpi-forum.org >>>> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools >>> >>> >>> -- >>> Jeff Squyres >>> jsquyres(a)cisco.com <mailto:[email protected]> >>> >>> _______________________________________________ >>> mpiwg-tools mailing list >>> mpiwg-tools(a)lists.mpi-forum.org >>> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools >> >> >> _______________________________________________ >> mpiwg-tools mailing list >> mpiwg-tools(a)lists.mpi-forum.org >> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools >> > > -- > 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 > > _______________________________________________ > mpiwg-tools mailing list > mpiwg-tools(a)lists.mpi-forum.org > https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools -- Jeff Squyres jsquyres(a)cisco.com

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Re: [mpiwg-tools] Questions for the tools community
by Marc-André Hermanns 29 Aug '19

29 Aug '19

Hi Jeff, sorry about the silence. As Martin already said, your mail led to some internal discussion and we wanted to reach out beyond the tools people on the mailing list because it seems no-one on the list is currently able to handle Fortran descriptors, but we failed to keep you informed. Would you be available on *Sep 19* for the tools call? That would give us some time to contact some people outside the working group and they'd have time to either give feedback or organize their schedules in a way to attend the call. Cheers, Marc-Andre On 29.08.19 16:53, Martin Schulz via mpiwg-tools wrote: > Hi Jeff, > > Due to the summer break and vacation time, especially in Europe, we > haven’t had a chance to address this - Marc-Andre had suggested a > tools call on this for after EuroMPI and then we’ll know more (we need > to get tool implementors to the table who are not part of the WG). > > Personally, though, I fear you are right with your assumption, but I > am happy to be proven wrong. > > Martin > > > — > Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel > Systems > Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching > Member of the Board of Directors at the Leibniz Supercomputing Centre > (LRZ) > Email: schulzm(a)in.tum.de <mailto:[email protected]> > > > > > > > > >> On 29. Aug 2019, at 16:46, Jeff Squyres (jsquyres) via mpiwg-tools >> <mpiwg-tools(a)lists.mpi-forum.org >> <mailto:[email protected]>> wrote: >> >> Should I infer from the lack of reply that no tools properly handle >> either Fortran descriptors or the descriptor-based symbols? >> >> >> >>> On Aug 25, 2019, at 11:31 AM, Jeff Squyres (jsquyres) via >>> mpiwg-tools <mpiwg-tools(a)lists.mpi-forum.org >>> <mailto:[email protected]>> wrote: >>> >>> In Open MPI, we are finally working towards supporting Fortran >>> descriptors for choice buffers (i.e., "TYPE(*), DIMENSION(..)"). >>> >>> Per MPI-3.1 p613 table 17.1, this means ***changing all the >>> back-end symbols*** that are used for PMPI-style interception. >>> >>> A concrete example: >>> >>> - in mpif.h / the mpi module, MPI_SEND will become MPI_SEND_FTS >>> - in the mpi_f08 module, MPI_SEND will become MPI_SEND_F08TS >>> >>> I.e., anywhere the application calls MPI_SEND, it will be >>> transmogrified to either MPI_SEND_FTS or MPI_SEND_F08TS. And the >>> choice buffer passed will be a descriptor (which may therefore be a >>> subarray, not a contiguous buffer), not a naked pointer. >>> >>> Here's my questions: >>> >>> 1. Do any tools support Fortran descriptors as choice buffers? >>> 2. Do any tools intercept the symbols as described in MPI-3.1 table >>> 17.1? >>> >>> -- >>> Jeff Squyres >>> jsquyres(a)cisco.com <mailto:[email protected]> >>> >>> _______________________________________________ >>> mpiwg-tools mailing list >>> mpiwg-tools(a)lists.mpi-forum.org >>> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools >> >> >> -- >> Jeff Squyres >> jsquyres(a)cisco.com <mailto:[email protected]> >> >> _______________________________________________ >> mpiwg-tools mailing list >> mpiwg-tools(a)lists.mpi-forum.org >> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools > > > _______________________________________________ > mpiwg-tools mailing list > mpiwg-tools(a)lists.mpi-forum.org > https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools > -- 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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Re: [mpiwg-tools] Questions for the tools community
by Jeff Squyres (jsquyres) 29 Aug '19

29 Aug '19

Gotcha. On Aug 29, 2019, at 10:53 AM, schulzm(a)in.tum.de<mailto:[email protected]> wrote: Hi Jeff, Due to the summer break and vacation time, especially in Europe, we haven’t had a chance to address this - Marc-Andre had suggested a tools call on this for after EuroMPI and then we’ll know more (we need to get tool implementors to the table who are not part of the WG). Personally, though, I fear you are right with your assumption, but I am happy to be proven wrong. Martin — Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel Systems Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching Member of the Board of Directors at the Leibniz Supercomputing Centre (LRZ) Email: schulzm(a)in.tum.de<mailto:[email protected]> On 29. Aug 2019, at 16:46, Jeff Squyres (jsquyres) via mpiwg-tools <mpiwg-tools(a)lists.mpi-forum.org<mailto:[email protected]>> wrote: Should I infer from the lack of reply that no tools properly handle either Fortran descriptors or the descriptor-based symbols? On Aug 25, 2019, at 11:31 AM, Jeff Squyres (jsquyres) via mpiwg-tools <mpiwg-tools(a)lists.mpi-forum.org<mailto:[email protected]>> wrote: In Open MPI, we are finally working towards supporting Fortran descriptors for choice buffers (i.e., "TYPE(*), DIMENSION(..)"). Per MPI-3.1 p613 table 17.1, this means ***changing all the back-end symbols*** that are used for PMPI-style interception. A concrete example: - in mpif.h / the mpi module, MPI_SEND will become MPI_SEND_FTS - in the mpi_f08 module, MPI_SEND will become MPI_SEND_F08TS I.e., anywhere the application calls MPI_SEND, it will be transmogrified to either MPI_SEND_FTS or MPI_SEND_F08TS. And the choice buffer passed will be a descriptor (which may therefore be a subarray, not a contiguous buffer), not a naked pointer. Here's my questions: 1. Do any tools support Fortran descriptors as choice buffers? 2. Do any tools intercept the symbols as described in MPI-3.1 table 17.1? -- Jeff Squyres jsquyres(a)cisco.com<mailto:[email protected]> _______________________________________________ mpiwg-tools mailing list mpiwg-tools(a)lists.mpi-forum.org<mailto:[email protected]> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools -- Jeff Squyres jsquyres(a)cisco.com<mailto:[email protected]> _______________________________________________ mpiwg-tools mailing list mpiwg-tools(a)lists.mpi-forum.org<mailto:[email protected]> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools -- Jeff Squyres jsquyres(a)cisco.com<mailto:[email protected]>

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Re: [mpiwg-tools] Questions for the tools community
by schulzm＠in.tum.de 29 Aug '19

29 Aug '19

Hi Jeff, Due to the summer break and vacation time, especially in Europe, we haven’t had a chance to address this - Marc-Andre had suggested a tools call on this for after EuroMPI and then we’ll know more (we need to get tool implementors to the table who are not part of the WG). Personally, though, I fear you are right with your assumption, but I am happy to be proven wrong. Martin — Prof. Dr. Martin Schulz, Chair of Computer Architecture and Parallel Systems Department of Informatics, TU-Munich, Boltzmannstraße 3, D-85748 Garching Member of the Board of Directors at the Leibniz Supercomputing Centre (LRZ) Email: schulzm(a)in.tum.de > On 29. Aug 2019, at 16:46, Jeff Squyres (jsquyres) via mpiwg-tools <mpiwg-tools(a)lists.mpi-forum.org> wrote: > > Should I infer from the lack of reply that no tools properly handle either Fortran descriptors or the descriptor-based symbols? > > > >> On Aug 25, 2019, at 11:31 AM, Jeff Squyres (jsquyres) via mpiwg-tools <mpiwg-tools(a)lists.mpi-forum.org> wrote: >> >> In Open MPI, we are finally working towards supporting Fortran descriptors for choice buffers (i.e., "TYPE(*), DIMENSION(..)"). >> >> Per MPI-3.1 p613 table 17.1, this means ***changing all the back-end symbols*** that are used for PMPI-style interception. >> >> A concrete example: >> >> - in mpif.h / the mpi module, MPI_SEND will become MPI_SEND_FTS >> - in the mpi_f08 module, MPI_SEND will become MPI_SEND_F08TS >> >> I.e., anywhere the application calls MPI_SEND, it will be transmogrified to either MPI_SEND_FTS or MPI_SEND_F08TS. And the choice buffer passed will be a descriptor (which may therefore be a subarray, not a contiguous buffer), not a naked pointer. >> >> Here's my questions: >> >> 1. Do any tools support Fortran descriptors as choice buffers? >> 2. Do any tools intercept the symbols as described in MPI-3.1 table 17.1? >> >> -- >> Jeff Squyres >> jsquyres(a)cisco.com >> >> _______________________________________________ >> mpiwg-tools mailing list >> mpiwg-tools(a)lists.mpi-forum.org >> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools > > > -- > Jeff Squyres > jsquyres(a)cisco.com > > _______________________________________________ > 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] Questions for the tools community
by Jeff Squyres (jsquyres) 29 Aug '19

29 Aug '19

Should I infer from the lack of reply that no tools properly handle either Fortran descriptors or the descriptor-based symbols? > On Aug 25, 2019, at 11:31 AM, Jeff Squyres (jsquyres) via mpiwg-tools <mpiwg-tools(a)lists.mpi-forum.org> wrote: > > In Open MPI, we are finally working towards supporting Fortran descriptors for choice buffers (i.e., "TYPE(*), DIMENSION(..)"). > > Per MPI-3.1 p613 table 17.1, this means ***changing all the back-end symbols*** that are used for PMPI-style interception. > > A concrete example: > > - in mpif.h / the mpi module, MPI_SEND will become MPI_SEND_FTS > - in the mpi_f08 module, MPI_SEND will become MPI_SEND_F08TS > > I.e., anywhere the application calls MPI_SEND, it will be transmogrified to either MPI_SEND_FTS or MPI_SEND_F08TS. And the choice buffer passed will be a descriptor (which may therefore be a subarray, not a contiguous buffer), not a naked pointer. > > Here's my questions: > > 1. Do any tools support Fortran descriptors as choice buffers? > 2. Do any tools intercept the symbols as described in MPI-3.1 table 17.1? > > -- > Jeff Squyres > jsquyres(a)cisco.com > > _______________________________________________ > mpiwg-tools mailing list > mpiwg-tools(a)lists.mpi-forum.org > https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools -- Jeff Squyres jsquyres(a)cisco.com

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Next calls and face-to-face meeting
by Marc-André Hermanns 27 Aug '19

27 Aug '19

Dear all, I have yet another conflict this week and with the face-to-face meeting and EuroMPI comping up, we'll skip the next three regular calls on: - August 27, - September 5, and - September 12. There is a Tools WG session and some plenary time regarding readings relevant for the Tools WG at the face-to-face. WebEx details will be updated in due time. Please consult the meetings page [1] for details. Cheers, Marc-Andre [1] https://www.mpi-forum.org/meetings/2019/09/agenda -- 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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Questions for the tools community
by Jeff Squyres (jsquyres) 25 Aug '19

25 Aug '19

In Open MPI, we are finally working towards supporting Fortran descriptors for choice buffers (i.e., "TYPE(*), DIMENSION(..)"). Per MPI-3.1 p613 table 17.1, this means ***changing all the back-end symbols*** that are used for PMPI-style interception. A concrete example: - in mpif.h / the mpi module, MPI_SEND will become MPI_SEND_FTS - in the mpi_f08 module, MPI_SEND will become MPI_SEND_F08TS I.e., anywhere the application calls MPI_SEND, it will be transmogrified to either MPI_SEND_FTS or MPI_SEND_F08TS. And the choice buffer passed will be a descriptor (which may therefore be a subarray, not a contiguous buffer), not a naked pointer. Here's my questions: 1. Do any tools support Fortran descriptors as choice buffers? 2. Do any tools intercept the symbols as described in MPI-3.1 table 17.1? -- Jeff Squyres jsquyres(a)cisco.com

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No call today
by Hermanns, Marc-André 22 Aug '19

22 Aug '19

Dear all, as I am still on travel, we'll skip today's call again. 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)itc.rwth-aachen.de www.itc.rwth-aachen.de

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No call today
by Hermanns, Marc-André 15 Aug '19

15 Aug '19

Dear all, as Kathryn, Martin, and I are out of office, we'll skip the call today. Cheers, Marc-André Sent from phone. -- 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: Aug 8, 2019 (today)
by Marc-André Hermanns 08 Aug '19

08 Aug '19

Hi everyone, This is a reminder of our regularly scheduled call today August 8 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 Prototype walk-through - MPI_T Events open issues 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)itc.rwth-aachen.de www.itc.rwth-aachen.de

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