Sorry, but just got around to look at this. In SuperLU_4.0, we introduced ILU preconditioner, which works better with MC64 permutation (which is written in f77). But I forgot to include this in slu_Cnames.h, to handle the name mangling issue.
In SuperLU_4.1, I converted MC64 from f77 to C using f2c. Therefore, there is no such name mangling problem. The C version is now also used in SuperLU_DIST_2.5. In summary, SuperLU_4.1 and SuperLU_DIST_2.5 upward versions should not need this name mangling for MC64. Sherry On Thu, Dec 2, 2010 at 1:40 PM, Satish Balay <balay at mcs.anl.gov> wrote: > Looks like a bug in superlu. [this bug doesn't exist in superlu_dist]. > > I suspect we've always used superlu with superlu_dist on bgp - so > didn't see this before. [symbols from -lsuperlu_dist must have been > picked up by the linker (before superlu symbols) - and these symbols > resolved without errors] > > The following fixes the issue. > > login2.surveyor:SuperLU_4.0/SRC > diff -Nru slu_Cnames.h~ slu_Cnames.h > --- slu_Cnames.h~ 2009-07-05 00:55:49.000000000 -0500 > +++ slu_Cnames.h 2010-12-02 15:19:30.005247114 -0600 > @@ -251,6 +251,9 @@ > #define izmax1_ IZMAX1 > #define zlacon_ ZLACON > > +#define mc64id_ MC64ID > +#define mc64ad_ MC64AD > + > /* Fortran interface */ > #define c_bridge_dgssv_ C_BRIDGE_DGSSV > #define c_fortran_sgssv_ C_FORTRAN_SGSSV > @@ -350,6 +353,9 @@ > #define izmax1_ izmax1 > #define zlacon_ zlacon > > +#define mc64id_ mc64id > +#define mc64ad_ mc64ad > + > /* Fortran interface */ > #define c_bridge_dgssv_ c_bridge_dgssv > #define c_fortran_sgssv_ c_fortran_sgssv > login2.surveyor:SuperLU_4.0/SRC > > > > I've respun the superlu download tarball with this fix.. > > > Note: Looks like Superlu_4.1 tarball has this bug.. > > Satish > > On Thu, 2 Dec 2010, Satish Balay wrote: > > > I'll attempt a build and see how it goes.. > > > > 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 > > > > > > > > > > > > > > > > > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20101203/b4e206fa/attachment.html>
