[petsc-dev] SuperLU link error on BGP FEN

[Satish Balay]

On Thu, 2 Dec 2010, Barry Smith wrote:

> 
> On Dec 2, 2010, at 1:59 PM, John R. Cary wrote:
> 
> > 
> > Anyway, given the pokeyness of the FENs on surveyor, it should be some
> > time before midnight!
> 
>   This is completely unacceptable! PETSc takes less than 10 minutes to configure and compile on my $2000 laptop (and probably half as long on Satish's $1000 laptop). On a $100 million machine it takes one half a day? 
> 
>   That is frankly disgusting and indicates extreme problems with the configuration of that machine. Why has this problem not been fixed years ago?
> 

Part of the issue could be: John builds PETSc as part of a collection
of pacakges - so the whole build takes a while.

Just petsc part is not that long..

Still its probably slower than laptops - perhaps due to nfs [vs local
FS] - and the slower PPC cpu?? [vs newer faster intel cpus...]. And
also comercial compilers tend to take longer times than gcc..

Satish

> > 
> > 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
> >>>> 
> >>> 
> >>> 
> >>> 
> > 
> 
>