[mpich-discuss] Building MPE for use with OpenMPI

[Jeff Hammond]

Pavan:

See hammond-mpi2-deprecated-functions-noconst branch on mpich-review.  I
found three functions where this change should be made.  I do not know if
that is the full list, so someone should verify.

Best,

Jeff

On Mon, Nov 30, 2015 at 8:08 PM, Balaji, Pavan <balaji at anl.gov> wrote:

>
> MPI_Type_struct is not a part of the MPI standard anymore and is replaced
> by MPI_Type_create_struct.  Both MPICH and Open MPI decided to retain it,
> but followed different directions for it.  MPICH decided to follow the same
> convention as MPI_Type_create_struct with the const additions.  Open MPI
> decided to keep the old prototypes as is.
>
> Unfortunately, MPE got stuck in between the two.  The best approach would
> be to simply remove those functions from MPE and this problem just goes
> away.  Would you be able to do that and contribute a patch?
>
> More generally, I think MPICH was overzealous in trying to constify
> prototypes for the deleted functions.  It should have just left them as
> they are, like what Open MPI did.  We'll figure out what to do about that
> internally, but that's not going to be a quick change because of ABI and
> other such stuff.
>
> Thanks,
>
>   -- Pavan
>
> > On Nov 30, 2015, at 8:14 PM, Schilling, Herbert W. (GRC-VE00) <
> hschilling at nasa.gov> wrote:
> >
> > Hi,
> >
> >  I am trying to build MPE for use with OpenMPI. I built from source
> Version 1.10.1 of OpenMPI.
> >
> >  I am using this version of MPE
> ftp://ftp.mcs.anl.gov/pub/mpi/mpe/mpe2.tar.gz
> >
> >  Should this work fine? I followed the instructions to build like this:
> >
> >     ${MPE_SRC_DIR}/configure MPI_CC=${OPENMPI_INSTALL_DIR}/bin/mpicc \
> >                             CC=<C_COMPILER_used_to_build_OpenMPI> \
> >                             MPI_F77=${OPENMPI_INSTALL_DIR}/bin/mpif77 \
> >                             F77=<FORTRAN_COMPILER_used_to_build_OpenMPI>
> \
> >                             --with-java2=/usr/local/j2sdk-1.4.2
> >                             --prefix=<MPE_INSTALL_DIR>
> >    make
> >    make install
> >
> >
> >
> >
> > I keep running into problems with conflicting declarations
> >
> >
> >  log_mpi_core.c:5611: error: conflicting types for 'MPI_Type_struct'
> >  /u/hschilli/local/include/mpi.h:1796: error: previous declaration of
> 'MPI_Type_struct' was here
> >
> >
> > I think the issue is that MPE's declaration uses some const qualifiers
> while OpenMPI does not.
> >
> >
> >
> > I tried hacking my way through this with the macro
> >
> > HAVE_CONST_IN_MPI_DECL
> >  and MPE_CONST but no luck so far.
> >
> >
> >
> > What am I doing wrong?
> >
> >
> > Thanks in advance.
> >
> > ---------
> > Herb Schilling
> > Scientific Applications and Visualization Team
> > http://ocio.grc.nasa.gov/gvis
> > Office of the Chief Information Officer
> > NASA Glenn Research Center
> > hschilling at nasa.gov
> >
> >
> >
> >
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-- 
Jeff Hammond
jeff.science at gmail.com
http://jeffhammond.github.io/
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