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Subject: Re: [OMPI users] unresolvable R_X86_64_64 relocation against symbol `mpi_fortran_*
From: Dmitry N. Mikushin (maemarcus_at_[hidden])
Date: 2011-09-28 12:06:43


Hi,

Interestingly, the errors are gone after I removed "-g" from the app
compile options.

I tested again on the fresh Ubuntu 11.10 install: both 1.4.3 and 1.5.4
compile fine, but with the same error.
Also I tried hard to find any 32-bit object or library and failed.
They all are 64-bit.

- D.

2011/9/24 Jeff Squyres <jsquyres_at_[hidden]>:
> Check the output from when you ran Open MPI's configure and "make all" -- did it decide to build the F77 interface?
>
> Also check that gcc and gfortran output .o files of the same bitness / type.
>
>
> On Sep 24, 2011, at 8:07 AM, Dmitry N. Mikushin wrote:
>
>> Compile and link - yes, but it turns out there was some unnoticed
>> compilation error because
>>
>> ./hellompi: error while loading shared libraries: libmpi_f77.so.1:
>> cannot open shared object file: No such file or directory
>>
>> and this library does not exist.
>>
>> Hm.
>>
>> 2011/9/24 Jeff Squyres <jsquyres_at_[hidden]>:
>>> Can you compile / link simple OMPI applications without this problem?
>>>
>>> On Sep 24, 2011, at 7:54 AM, Dmitry N. Mikushin wrote:
>>>
>>>> Hi Jeff,
>>>>
>>>> Today I've verified this application on the Feroda 15 x86_64, where
>>>> I'm usually building OpenMPI from source using the same method.
>>>> Result: no link errors there! So, the issue is likely ubuntu-specific.
>>>>
>>>> Target application is compiled linked with mpif90 pointing to
>>>> /opt/openmpi_gcc-1.5.4/bin/mpif90 I built.
>>>>
>>>> Regarding architectures, everything in target folders and OpenMPI
>>>> installation is
>>>> ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically
>>>> linked, not stripped
>>>>
>>>> - D.
>>>>
>>>> 2011/9/24 Jeff Squyres <jsquyres_at_[hidden]>:
>>>>> How does the target application compile / link itself?
>>>>>
>>>>> Try running "file" on the Open MPI libraries and/or your target application .o files to see what their bitness is, etc.
>>>>>
>>>>>
>>>>> On Sep 22, 2011, at 3:15 PM, Dmitry N. Mikushin wrote:
>>>>>
>>>>>> Hi Jeff,
>>>>>>
>>>>>> You're right because I also tried 1.4.3, and it's the same issue
>>>>>> there. But what could be wrong? I'm using the simplest form -
>>>>>> ../configure --prefix=/opt/openmpi_gcc-1.4.3/ and only installed
>>>>>> compilers are system-default gcc and gfortran 4.6.1. Distro is ubuntu
>>>>>> 11.10. There is no any mpi installed from packages, and no -m32
>>>>>> options around. What else could be the source?
>>>>>>
>>>>>> Thanks,
>>>>>> - D.
>>>>>>
>>>>>> 2011/9/22 Jeff Squyres <jsquyres_at_[hidden]>:
>>>>>>> This usually means that you're mixing compiler/linker flags somehow (e.g., built something with 32 bit, built something else with 64 bit, try to link them together).
>>>>>>>
>>>>>>> Can you verify that everything was built with all the same 32/64?
>>>>>>>
>>>>>>>
>>>>>>> On Sep 22, 2011, at 1:21 PM, Dmitry N. Mikushin wrote:
>>>>>>>
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> OpenMPI 1.5.4 compiled with gcc 4.6.1 and linked with target app gives
>>>>>>>> a load of linker messages like this one:
>>>>>>>>
>>>>>>>> /usr/bin/ld: ../../lib/libutil.a(parallel_utilities.o)(.debug_info+0x529d):
>>>>>>>> unresolvable R_X86_64_64 relocation against symbol
>>>>>>>> `mpi_fortran_argv_null_
>>>>>>>>
>>>>>>>> There are a lot of similar messages about other mpi_fortran_ symbols.
>>>>>>>> Is it a known issue?
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>> - D.
>>>>>>>> _______________________________________________
>>>>>>>> users mailing list
>>>>>>>> users_at_[hidden]
>>>>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Jeff Squyres
>>>>>>> jsquyres_at_[hidden]
>>>>>>> For corporate legal information go to:
>>>>>>> http://www.cisco.com/web/about/doing_business/legal/cri/
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> users mailing list
>>>>>>> users_at_[hidden]
>>>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>>>>>>
>>>>>> _______________________________________________
>>>>>> users mailing list
>>>>>> users_at_[hidden]
>>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>>>>
>>>>>
>>>>> --
>>>>> Jeff Squyres
>>>>> jsquyres_at_[hidden]
>>>>> For corporate legal information go to:
>>>>> http://www.cisco.com/web/about/doing_business/legal/cri/
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> users mailing list
>>>>> users_at_[hidden]
>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>>>>
>>>> _______________________________________________
>>>> users mailing list
>>>> users_at_[hidden]
>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>>
>>>
>>> --
>>> Jeff Squyres
>>> jsquyres_at_[hidden]
>>> For corporate legal information go to:
>>> http://www.cisco.com/web/about/doing_business/legal/cri/
>>>
>>>
>>> _______________________________________________
>>> users mailing list
>>> users_at_[hidden]
>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>>
>> _______________________________________________
>> users mailing list
>> users_at_[hidden]
>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>
>
> --
> Jeff Squyres
> jsquyres_at_[hidden]
> For corporate legal information go to:
> http://www.cisco.com/web/about/doing_business/legal/cri/
>
>
> _______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users
>