[petsc-dev] SuperLU link error on BGP FEN

John R. Cary cary at txcorp.com
Thu Dec 2 13:59:16 CST 2010


On 12/2/2010 12:55 PM, Satish Balay wrote:
> I'll attempt a build and see how it goes..

Thanks.  I am doing one now too.  I wanted to send configure.log,
but apparently it got overwritten at some later time by running configure
again.  I am not sure exactly when this happens, or how one goes back
to getting older logs, so I am rebuilding.

Anyway, given the pokeyness of the FENs on surveyor, it should be some
time before midnight!

John

> satish
>
> On Thu, 2 Dec 2010, Matthew Knepley wrote:
>
>> We always always always always need configure.log.
>>
>>      Matt
>>
>> On Thu, Dec 2, 2010 at 8:41 AM, John R. Cary<cary at txcorp.com>  wrote:
>>
>>> I am trying to link facets on a FEN of surveyor.alcf.anl.gov.  It ends
>>> with the error,
>>>
>>> /gpfs/home/projects/facets/surveyor/contrib-xlc-9.0/petsc-3.1-p4-ser/lib/libsuperlu_4.0.a(dldperm.o):
>>> In function `dldperm':
>>> /gpfs/home/cary/facetspkgs/builds/petsc-3.1-p4/ser/externalpackages/SuperLU_4.0/SRC/dldperm.c:127:
>>> undefined reference to `mc64id_'
>>> /gpfs/home/cary/facetspkgs/builds/petsc-3.1-p4/ser/externalpackages/SuperLU_4.0/SRC/dldperm.c:134:
>>> undefined reference to `mc64ad_'
>>>
>>> which indicates that the SuperLU compiled with PETSc did
>>> not get the fortran underscoring flag correct (which should
>>> be no underscore with xlf).  nm shows
>>>
>>> login1.surveyor$ nm
>>> /gpfs/home/projects/facets/surveyor/contrib-xlc-9.0/petsc-3.1-p4-ser/lib/libsuperlu_4.0.a
>>> | grep mc64
>>>                  U mc64ad_
>>>                  U mc64id_
>>> mc64ad.o:
>>> 0000000000000018 D mc64ad
>>> 0000000000000030 D mc64bd
>>> 0000000000000048 D mc64dd
>>> 0000000000000060 D mc64ed
>>> 0000000000000078 D mc64fd
>>> 0000000000000000 D mc64id
>>> 00000000000000c0 D mc64qd
>>> 0000000000000090 D mc64rd
>>> 00000000000000a8 D mc64sd
>>> 00000000000000d8 D mc64ud
>>> 00000000000000f0 D mc64wd
>>>                  U mc64ad_
>>>                  U mc64id_
>>>
>>> that the underscored symbol is being called, but the
>>> underscore-free symbol is what was defined.
>>>
>>> My PETSc configure line was
>>>
>>> #!/bin/sh
>>> /gpfs/home/cary/facetspkgs/builds-surveyor-xlc/facetspkgs/petsc-3.1-p4/ser/configure
>>> \
>>>   --prefix=/gpfs/home/projects/facets/surveyor/contrib-xlc-9.0/petsc-3.1-p4-ser
>>> \
>>>   --with-mpi=0 \
>>>   --with-debugging=0 \
>>>   --with-x=0 \
>>>   --with-cc='xlc_r' \
>>>   --with-cxx='xlC_r' \
>>>   --with-fc='xlf_r' \
>>>   --COPTFLAGS='-O2 -g' \
>>>   --download-superlu \
>>>   --with-lapack-lib=/home/projects/facets/intrepid/contrib/lapack-ser/lib/liblapack.a
>>> \
>>>   --with-blas-lib=/home/projects/facets/intrepid/contrib/lapack-ser/lib/libblas.a
>>> \
>>>   PETSC_DIR=/gpfs/home/cary/facetspkgs/builds-surveyor-xlc/facetspkgs/petsc-3.1-p4/ser
>>> \
>>>   PETSC_ARCH=facets-ser \
>>>   --CFLAGS='-q64 -qlanglvl=redefmac' \
>>>   --CXXFLAGS='-q64 -qlanglvl=redefmac' \
>>>   --FFLAGS='-q64 -qextname=flush' \
>>>   --with-shared=1
>>>
>>> so I think that PETSc had enough info to figure out the underscoring.
>>> Perhaps this is a bug.
>>>
>>> But regardless, is there a workaround?
>>>
>>> Thx....John
>>>
>>
>>
>>




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