[mpich-discuss] undefined symbol: MPI_UNWEIGHTED

Wed Aug 10 13:22:01 CDT 2016

Great! Yes, it looks like your binary was picking up a libmpi.so.12 from 
the tecplot directory that may not have been compatible with the Fortran 
library.

Ken

On 08/10/2016 01:13 PM, Robert Baurle wrote:
> I have figured out the problem. There was some sort of conflict with
> other libraries that were in my library path. In particular, I had
> Tecplot360EX in my LD_LIBRARY_PATH, and this package includes some
> libraries that take advantage of MPI-IO. Here is the result of ldd when
> this package was in my path:
>
> hyp22 rbaurle 2007> ldd hello.out
>     linux-vdso.so.1 =>  (0x00007ffe001df000)
>     libmpifort.so.12 => /opt/mpich/lib/libmpifort.so.12
> (0x00002b0e09bf5000)
>     libmpi.so.12 => /opt/tecplotex/bin/libmpi.so.12 (0x00002b0e09e2d000)
>     libgfortran.so.3 => /usr/lib64/libgfortran.so.3 (0x00002b0e0a126000)
>     libm.so.6 => /lib64/libm.so.6 (0x00000038bcc00000)
>     libgcc_s.so.1 => /opt/tecplotex/bin/libgcc_s.so.1 (0x00002b0e0a419000)
>     libc.so.6 => /lib64/libc.so.6 (0x00000038bc800000)
>     librt.so.1 => /lib64/librt.so.1 (0x00000038bd800000)
>     libpthread.so.0 => /lib64/libpthread.so.0 (0x00000038bd400000)
>     libopen-rte.so.12 => /opt/tecplotex/bin/libopen-rte.so.12
> (0x00002b0e0a630000)
>     libopen-pal.so.13 => /opt/tecplotex/bin/libopen-pal.so.13
> (0x00002b0e0a8ab000)
>     libpciaccess.so.0 => /usr/lib64/libpciaccess.so.0 (0x00000038bec00000)
>     libdl.so.2 => /lib64/libdl.so.2 (0x00000038bd000000)
>     libutil.so.1 => /lib64/libutil.so.1 (0x00000038ce800000)
>     /lib64/ld-linux-x86-64.so.2 (0x00000038bc400000)
>
> When I removed this package from my LD_LIBRARY_PATH, the hello
> executable runs just fine and this is the result of of ldd:
>
> hyp22 rbaurle 2020> ldd hello.out
>     linux-vdso.so.1 =>  (0x00007ffda41fd000)
>     libmpifort.so.12 => /opt/mpich/lib/libmpifort.so.12
> (0x00002ae95cdf7000)
>     libmpi.so.12 => /opt/mpich/lib/libmpi.so.12 (0x00002ae95d02f000)
>     libgfortran.so.3 => /usr/lib64/libgfortran.so.3 (0x00002ae95d4ce000)
>     libm.so.6 => /lib64/libm.so.6 (0x00000038bcc00000)
>     libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00000038c3c00000)
>     libc.so.6 => /lib64/libc.so.6 (0x00000038bc800000)
>     librt.so.1 => /lib64/librt.so.1 (0x00000038bd800000)
>     libpthread.so.0 => /lib64/libpthread.so.0 (0x00000038bd400000)
>     /lib64/ld-linux-x86-64.so.2 (0x00000038bc400000)
>
>
> Thanks for the ldd suggestion,
>
> Rob
>
> On 08/10/2016 12:55 PM, Kenneth Raffenetti wrote:
>> Hi Robert,
>>
>> Apologies for the delayed response. I'm unable to reproduce this on a
>> CentOS 6 machine so far. Can you run ldd against your hello world
>> binaries to double check the linkage? The MPI_UNWEIGHTED symbol should
>> be resolved in the libmpi.so library by the inter-library dependency.
>>
>> Ken
>>
>> On 08/02/2016 02:00 PM, Robert Baurle wrote:
>>> Sorry, I should have also stated that /opt/mpich is a symbolic link to
>>> /opt/mpich_gfc. I define /opt/mpich to be a symbolic link to either:
>>>
>>> /opt/mpich_gfc
>>>
>>> or
>>>
>>> /opt/mpich_lahey
>>>
>>> depending on which Fortran90 compiler I want to use. I currently have
>>> /opt/mpich symbolically linked to /opt/mpich_gfc, and /opt/mpich is
>>> defined in my paths as shown below
>>>
>>> hyp22 rbaurle > echo $LD_LIBRARY_PATH
>>> /usr/lib64/atlas:/opt/tecplotex/bin:/opt/mpich/lib:/opt/lahey-64/lib64:/usr/local/lib
>>>
>>>
>>>
>>> hyp22 rbaurle > echo $PATH
>>> /home/rbaurle/bin:/usr/lib64/qt-3.3/bin:/usr/local/bin:/usr/bin:/bin:/sbin:/opt/lahey-64/bin:/opt/tecplot/bin:/opt/gridpro/bin:/opt/mpich/bin:.:/home/rbaurle/Vulcan/vulcan.bzr/Vulcan/Scripts
>>>
>>>
>>>
>>>
>>> Rob
>>>
>>> On 08/02/2016 02:48 PM, Halim Amer wrote:
>>>> you are probably linking to the wrong MPICH. You installed MPICH to
>>>> /opt/mpich_gfc but the error occurs for MPICH installed at /opt/mpich.
>>>>
>>>> Do you have /opt/mpich in LD_LIBRARY_PATH? If that's the case, then
>>>> you should remove it or place /opt/mpich_gfc before it.
>>>>
>>>> --Halim
>>>>
>>>> www.mcs.anl.gov/~aamer
>>>>
>>>> On 8/2/16 11:33 AM, Robert Baurle wrote:
>>>>> Hello,
>>>>>
>>>>> I have installed MPICH 3.2 on a CENTOS 6 machine with the following
>>>>> configuration options:
>>>>>
>>>>> setenv CC /usr/bin/gcc
>>>>> setenv FC /usr/bin/gfortran
>>>>> setenv CXX /usr/bin/c++
>>>>> setenv INS_DIR /opt/mpich_gfc
>>>>>
>>>>> ../mpich-3.2/configure --prefix=$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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