[Mpi3-tools] Tools WG webex: tomorrow!

[Rolf Rabenseifner]

Jeff and Craig,

does the Tools Fortran wrapper include calls to the C f2c (and c2f)
function through a Fortran BIND(C) interface definition
that makes these functions callable from the Fortran written 
tools wrappers?

If yes, then we should continue to think about including these
Fortran callable f2c (and c2f) functions as official
Fortran Interfaces into the MPI library,
because the BIND(C) Fortran interface for these functions
seems to me not portable if these C functions are implemented
as macros.

And for portable programming of calling the f2c functions,
we also Need types in Fortran that correspond to the C types
MPI_Comm, etc., i.e., the concept of the standardized constants
MPI_C_COMM_KIND, etc., to get the type definition
INTEGER(KIND=MPI_C_COMM_KIND) in Fortran as equivalent to 
MPI_Comm in C. 

To minimize the tools' instrumentation overhead, such
conversions should be possible as macros, especially
if the conversion is the identity.
Implementing such in Fortran functions inside of
a Fortran module (i.e., with CONTAINS), allows that
the Compiler is inlining the conversion and removing it
in the case of the identity function.

Best regards
Rolf

----- Original Message -----
> From: "Jeff Squyres (jsquyres)" <jsquyres at cisco.com>
> To: "MPI-3 WG" <mpi3-tools at lists.mpi-forum.org>
> Sent: Thursday, June 27, 2013 8:23:30 PM
> Subject: Re: [Mpi3-tools] Tools WG webex: tomorrow!
> The notes from todays meeting are now posted on the wiki:
> 
> https://svn.mpi-forum.org/trac/mpi-forum-web/wiki/MPI3Tools/notes-2013-06-27
> 
> Enjoy!
> 
> 
> On Jun 26, 2013, at 4:54 PM, Jeff Squyres <jsquyres at cisco.com> wrote:
> 
> > This is your friendly neighborhood MPI-3 Tools Working Group
> > teleconf reminder for tomorrow:
> >
> > Thursday, June 27, 2013, 11am US Eastern time
> > Webex link:
> > https://cisco.webex.com/ciscosales/j.php?ED=217124297&UID=0&PW=NMDEyN2UwZmM3&RT=MiMxMQ%3D%3D
> > Webex password: tools
> >
> > Wiki link:
> > https://svn.mpi-forum.org/trac/mpi-forum-web/wiki/MPI3Tools
> >
> > Agenda:
> >
> > MPI meeting results
> > - Formal reading of MPI queue side document: went well
> >  https://svn.mpi-forum.org/trac/mpi-forum-web/ticket/375
> >  Anh to discuss details
> > - Voted on MPI_T constants erroneously listed for Fortran: passed
> >  https://svn.mpi-forum.org/trac/mpi-forum-web/ticket/354
> >  Need to commit to latex and get PDF reviews
> > - Fortran debacle: you've all been doing it wrong (for ~15 years)
> > - Thoughts on new profiling interface for MPI-4
> > - ...anything else?
> >
> > --
> > Jeff Squyres
> > jsquyres at cisco.com
> > For corporate legal information go to:
> > http://www.cisco.com/web/about/doing_business/legal/cri/
> >
> 
> 
> --
> Jeff Squyres
> jsquyres at cisco.com
> For corporate legal information go to:
> http://www.cisco.com/web/about/doing_business/legal/cri/
> 
> 
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-- 
Dr. Rolf Rabenseifner . . . . . . . . . .. email rabenseifner at hlrs.de
High Performance Computing Center (HLRS) . phone ++49(0)711/685-65530
University of Stuttgart . . . . . . . . .. fax ++49(0)711 / 685-65832
Head of Dpmt Parallel Computing . . . www.hlrs.de/people/rabenseifner
Nobelstr. 19, D-70550 Stuttgart, Germany . . . . (Office: Room 1.307)