[mpich-discuss] undefined symbol: MPI_UNWEIGHTED

[Robert Baurle]

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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