[mpiwg-tools] Questions for the tools community

[Marc-André Hermanns]

Dear all,

it was quiet here for a while, but I just wanted to announce the date
to further our discussion on this topic as:

Thursday, October 17, 2019
11:00 AM - 12:00 PM
(UTC-05:00) Eastern Time (US & Canada)

Cheers,
Marc-Andre

On 19.09.19 08:08, Marc-André Hermanns wrote:
> Dear all,
> 
> so we conclude that we will move this discussion to a later date.
> 
> As the upcoming weeks may need some special handling (Bill Williams is
> not available on usual slot  next week, Oct 3 is a public holiday in
> Germany, Oct 10 I have scheduling difficulties) I created a doole poll
> with some options.
> 
> https://doodle.com/poll/ir35szkfkkausbpf
> 
> Please indicate what works for you.
> 
> Cheers,
> Marc-Andre
> 
> On 17.09.19 15:18, William Williams wrote:
>> I can probably do something at 1900CET that Thursday but am on
>> airplanes for a few hours before that. If that’s not workable for
>> others, I’m happy to discuss things over email or a subsequent week as
>> folks prefer.
>>
>> Bill Williams
>> Wiss. Mitarbeiter
>> ZIH-IAK, TU-Dresden
>> Falkenbrunnen, Room 009
>> Chemnitzer Straße 50
>> 01187 Dresden
>> Phone:  +49 351 463-39976
>> e-mail:   william.williams at mailbox.tu-dresden.de
>> <mailto:william.williams at mailbox.tu-dresden.de>
>>
>>
>>
>>> On 17. Sep 2019, at 14:53, Jeff Squyres (jsquyres)
>>> <jsquyres at cisco.com <mailto:jsquyres at cisco.com>> wrote:
>>>
>>> Pushing to Thursday 26 Sep works for me.
>>>
>>> Sorry for the schedule complications!
>>>
>>>
>>>> On Sep 17, 2019, at 8:37 AM, Mohror, Kathryn <mohror1 at llnl.gov
>>>> <mailto:mohror1 at llnl.gov>> wrote:
>>>>
>>>> Hi Marc-Andre,
>>>>
>>>> Pushing to a later Thursday is fine with me. I am not aware of any
>>>> other tools people that are planning to join this coming Thursday.
>>>>
>>>> Kathryn
>>>>
>>>> -----Original Message-----
>>>> From: mpiwg-tools <mpiwg-tools-bounces at lists.mpi-forum.org
>>>> <mailto:mpiwg-tools-bounces at lists.mpi-forum.org>> On Behalf Of
>>>> Marc-André Hermanns via mpiwg-tools
>>>> Sent: Monday, September 16, 2019 11:46 PM
>>>> To: Jeff Squyres (jsquyres) <jsquyres at cisco.com
>>>> <mailto:jsquyres at cisco.com>>; MPI Tool WG
>>>> <mpiwg-tools at lists.mpi-forum.org
>>>> <mailto:mpiwg-tools at lists.mpi-forum.org>>; William Williams
>>>> <william.williams at mailbox.tu-dresden.de
>>>> <mailto:william.williams at mailbox.tu-dresden.de>>
>>>> Cc: Marc-André Hermanns <hermanns at itc.rwth-aachen.de
>>>> <mailto:hermanns at itc.rwth-aachen.de>>
>>>> Subject: Re: [mpiwg-tools] Questions for the tools community
>>>>
>>>> Hi Jeff,
>>>>
>>>> sorry for the delay in responding to your email.
>>>>
>>>> As Martin also has some conflicts for this upcoming Thursday, we
>>>> had the idea to push this to another week. How would that work for you?
>>>>
>>>> @Kathryn: Do you know from anyone at LLNL or other US sites who
>>>> planned to come, who we need to inform if we shift to another week?
>>>> I put Bill Williams (from TU Dresden) in CC, as he initially
>>>> planned to join as well.
>>>>
>>>> If shifting the topic to a later date doesn't work out for you, you
>>>> can certainly sync up with me, but I think first-hand information
>>>> is always best in a discussion and it's always a pleasure to have
>>>> you on the call ;-)
>>>>
>>>> Cheers,
>>>> Marc-Andre
>>>>
>>>> On 16.09.19 15:05, Jeff Squyres (jsquyres) wrote:
>>>>> Something changed and I'm sorry, I can't be there this Thursday.
>>>>>  I'm sorry!
>>>>>
>>>>> Can I sync up with someone before Thursday to explain what I'm
>>>>> asking about?
>>>>>
>>>>>
>>>>>> On Aug 29, 2019, at 11:25 AM, Jeff Squyres (jsquyres)
>>>>>> <jsquyres at cisco.com <mailto:jsquyres at cisco.com>> wrote:
>>>>>>
>>>>>> Sure, I can be there.
>>>>>>
>>>>>> Thanks!
>>>>>>
>>>>>>
>>>>>>> On Aug 29, 2019, at 11:05 AM, Marc-André Hermanns via
>>>>>>> mpiwg-tools <mpiwg-tools at lists.mpi-forum.org
>>>>>>> <mailto:mpiwg-tools at 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 at in.tum.de <mailto:schulzm at in.tum.de>
>>>>>>>> <mailto:schulzm at in.tum.de>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>> On 29. Aug 2019, at 16:46, Jeff Squyres (jsquyres) via
>>>>>>>>> mpiwg-tools
>>>>>>>>> <mpiwg-tools at lists.mpi-forum.org
>>>>>>>>> <mailto:mpiwg-tools at lists.mpi-forum.org>
>>>>>>>>> <mailto:mpiwg-tools at 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 at lists.mpi-forum.org
>>>>>>>>>> <mailto:mpiwg-tools at lists.mpi-forum.org>
>>>>>>>>>> <mailto:mpiwg-tools at 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 at cisco.com <mailto:jsquyres at cisco.com>
>>>>>>>>>> <mailto:jsquyres at cisco.com>
>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> mpiwg-tools mailing list
>>>>>>>>>> mpiwg-tools at lists.mpi-forum.org
>>>>>>>>>> <mailto:mpiwg-tools at lists.mpi-forum.org>
>>>>>>>>>> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> Jeff Squyres
>>>>>>>>> jsquyres at cisco.com <mailto:jsquyres at cisco.com>
>>>>>>>>> <mailto:jsquyres at cisco.com>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> mpiwg-tools mailing list
>>>>>>>>> mpiwg-tools at lists.mpi-forum.org
>>>>>>>>> <mailto:mpiwg-tools at lists.mpi-forum.org>
>>>>>>>>> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> mpiwg-tools mailing list
>>>>>>>> mpiwg-tools at lists.mpi-forum.org
>>>>>>>> <mailto:mpiwg-tools at 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 at itc.rwth-aachen.de <mailto:hermanns at itc.rwth-aachen.de>
>>>>>>> www.itc.rwth-aachen.de
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> mpiwg-tools mailing list
>>>>>>> mpiwg-tools at lists.mpi-forum.org
>>>>>>> https://lists.mpi-forum.org/mailman/listinfo/mpiwg-tools
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Jeff Squyres
>>>>>> jsquyres at cisco.com <mailto:jsquyres at cisco.com>
>>>>>>
>>>>>
>>>>>
>>>>
>>>> --
>>>> 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 at itc.rwth-aachen.de <mailto:hermanns at itc.rwth-aachen.de>
>>>> www.itc.rwth-aachen.de
>>>>
>>>
>>>
>>> -- 
>>> Jeff Squyres
>>> jsquyres at cisco.com <mailto:jsquyres at cisco.com>
>>>
>>
> 

-- 
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 at itc.rwth-aachen.de
www.itc.rwth-aachen.de

-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 5336 bytes
Desc: S/MIME Cryptographic Signature
URL: <http://lists.mpi-forum.org/pipermail/mpiwg-tools/attachments/20191010/efe1fdc6/attachment-0001.p7s>