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Subject: [OMPI devel] Fwd: Re: [Score-P support] Compile errors of Fedora rawhide
From: Orion Poplawski (orion_at_[hidden])
Date: 2014-03-11 13:14:42


FYI -

   Looks like the mix of MPI 3 compliant and older declarations is causing a
bit of an issue for Score-P support. The current Score-P code bases adding
the const qualifiers on MPI_VERSION >= 3. But openmpi 1.7.4 is still
MPI_VERSION 2 (SUB 2). If I change scorep to add the const qualifiers for
openmpi 1.7.4, then it has trouble with some different routines that are
missing the const qualifiers, for example MPI_Address and MPI_Info_set. It's
tough to support a mix like this.

- Orion

-------- Original Message --------
Subject: Re: [Score-P support] Compile errors of Fedora rawhide
Date: Tue, 11 Mar 2014 14:16:46 +0100
From: Daniel Lorenz <d.lorenz_at_[hidden]>
To: Orion Poplawski <orion_at_[hidden]>
CC: Score-P Support <support_at_[hidden]>

Hi,

I can reproduce the results with openmpi 1.7.4. It seems that openmpi 1.7.4
added const qualifiers to some MPI function parameters which cause this error.
For MPI 3 many function arguments get such a const qualifier, and openmpi
1.7.4 added some MPI 3 features. However, not all function signatures in
openmpi 1.7.4 are changed to the MPI 3 standard. Thus, there is a mixture of
MPI 2 compliant functions and MPI 3 compliant functions. To support such
mixtures we need to add a couple of additional checks. If you want to use the
current Score-P with openmpi 1.7.4, the easiest workaround you could try is to
build Score-P with the mpi.h header from openmpi 1.7.3. However there is no
guarantee that it works. Another option is to adapt the Score-P MPI function
wrapper signatures to the openmpi 1.7.4.

Regards,
Daniel

On 11 Mar 2014, at 03:35, Orion Poplawski <orion_at_[hidden]> wrote:

> scorep 1.2.3 is compiling fine on Fedora 20, but failing on Fedora
> Rawhide during the openmpi build. Full build log is here:
> http://kojipkgs.fedoraproject.org//work/tasks/191/6620191/build.log
>
> errors are like:
>
> ../../build-mpi/../src/adapters/mpi/SCOREP_Mpi_Cg.c:334:1: error:
> conflicting types for 'MPI_Group_excl'
> MPI_Group_excl( MPI_Group group, int n, SCOREP_MPI_CONST_DECL int*
> ranks, MPI_Group* newgroup )
> ^
> In file included from ../../build-mpi/../src/adapters/mpi/SCOREP_Mpi.h:32:0,
> from
> ../../build-mpi/../src/adapters/mpi/SCOREP_Mpi_Cg.c:44:
> /usr/include/openmpi-i386/mpi.h:1451:20: note: previous declaration of
> 'MPI_Group_excl' was here
> OMPI_DECLSPEC int MPI_Group_excl(MPI_Group group, int n, const int
> ranks[],
> ^
> ../../build-mpi/../src/adapters/mpi/SCOREP_Mpi_Cg.c:371:1: error:
> conflicting types for 'MPI_Group_incl'
> MPI_Group_incl( MPI_Group group, int n, SCOREP_MPI_CONST_DECL int*
> ranks, MPI_Group* newgroup )
> ^
> In file included from ../../build-mpi/../src/adapters/mpi/SCOREP_Mpi.h:32:0,
> from
> ../../build-mpi/../src/adapters/mpi/SCOREP_Mpi_Cg.c:44:
> /usr/include/openmpi-i386/mpi.h:1455:20: note: previous declaration of
> 'MPI_Group_incl' was here
> OMPI_DECLSPEC int MPI_Group_incl(MPI_Group group, int n, const int
> ranks[],
> ^
>
> one difference is openmpi 1.7.4 instead of 1.7.3. Let me know what else
> I can provide.
>
> - Orion
>
> --
> Orion Poplawski
> Technical Manager 303-415-9701 x222
> NWRA/CoRA Division FAX: 303-415-9702
> 3380 Mitchell Lane orion_at_[hidden]
> Boulder, CO 80301 http://www.cora.nwra.com
> _______________________________________________
> Support mailing list for Score-P
> support_at_[hidden]
> https://mailman.zih.tu-dresden.de/groups/listinfo/scorep-support