[mpich-discuss] undefined symbol: MPI_UNWEIGHTED

[Halim Amer]

you are probably linking to the wrong MPICH. You installed MPICH to 
/opt/mpich_gfc but the error occurs for MPICH installed at /opt/mpich.

Do you have /opt/mpich in LD_LIBRARY_PATH? If that's the case, then you 
should remove it or place /opt/mpich_gfc before it.

--Halim

www.mcs.anl.gov/~aamer

On 8/2/16 11:33 AM, Robert Baurle wrote:
> Hello,
>
> I have installed MPICH 3.2 on a CENTOS 6 machine with the following
> configuration options:
>
> setenv CC /usr/bin/gcc
> setenv FC /usr/bin/gfortran
> setenv CXX /usr/bin/c++
> setenv INS_DIR /opt/mpich_gfc
>
> ../mpich-3.2/configure --prefix=$INS_DIR --with-device=ch3:nemesis |&
> tee configure.log
>
> make --jobs 4 |& tee make.log
>
> make install
>
> and the installation appeared to have completed without error (see the
> attached configure.log and make.log files). However, when I attempt to
> run a simple hello_world FORTRAN 90 program, I get the following error:
>
> hyp22 rbaurle 2293> mpirun -n 3 a.out < hello.inp
> a.out: symbol lookup error: /opt/mpich/lib/libmpifort.so.12: undefined
> symbol: MPI_UNWEIGHTED
>
> If I repeat the installation, but change the Fortran90 compiler from
> GFORTRAN to the Lahey 8.1 compiler, i.e.:
>
> setenv FC /opt/lahey-64/bin/lf95
>
> then the hello_world program runs just fine. Do you have any idea what
> might be going on here? I should also mention that the same error
> appears if I install MPICH 3.1.3.
>
> Thanks,
>
> Rob
>
>
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