dolfin team mailing list archive

["Matthew Knepley" <knepley@xxxxxxxxx>]

I have said this more than 13 times. That link procedure is Wrong Wrong Wrong.
I have also given the right ways to do it:

  1) 'make getlinklibs' prints the correct link line

  2) 'include ${PETSC_DIR}/conf/variables' in the makefile and use
${PETSC_TS_LIB}

  3) Load the pickled configure information and read it into Python.
There is an example
      in $PETSC_DIR/bin/configVars.py

Why in the hell is this still screwed up? Of course you need to link
all the 3rd party
libraries.

   Matt

On Sun, Apr 13, 2008 at 12:35 PM, Jed Brown <jed@xxxxxxxx> wrote:
> On Sun 2008-04-13 18:21, Garth N. Wells wrote:
>  >
>  >
>  > Jed Brown wrote:
>  > > I had to make a number of minor changes in order to build with gcc 4.3.0 which
>  > > is much stricter.  Also, the swig wrapper will not build with -Werror.
>  > >
>  > > It seems like the current build system is rather broken with respect to PETSc
>  > > since I cannot build with extra preconditioning libraries.  A huge advantage of
>  > > PETSc is that I can try out a bunch of preconditioners easily.  As far as I can
>  > > tell, the current build just adds linker options $PETSC_DIR/lib/$PETSC_ARCH and
>  > > -lpetscxxx which is not sufficient if I built with Hypre, ML, etc.  While it's
>  > > not painful to keep a special PETSC_ARCH with a minimal build just for dolfin,
>  > > it would be nice to use a more full-featured PETSc.
>  >
>  > It should be possible to use all the features of PETSc, and -lpetscksp
>  > should provide access to all the preconditioners. If you provide more
>  > details of the problem that you're facing we can look at it.
>  >
>  > What we don't want is to link directly to packages which PETSc depends
>  > on. PETSc takes care of this.
>
>  My build fails if I use a slightly more featured PETSc configuration.  This PETSc was configured with
>
>  --with-mpi-dir=/usr --with-blas-lapack-dir=/usr --download-umfpack=ifneeded --download-hypre=ifneeded
>
>  so I need some linker flags that are not present below.
>
>  Jed
>
>
>  mpic++ -o demo/function/cpp/demo -Wl,-rpath,/home/jed/usr/petsc-2.3.3-p12/lib/ompi demo/function/cpp/main.o -Ldolfin -L/home/jed/usr/petsc-2.3.3-p12/lib/ompi -ldolfin -lxml2 -lpetscts -lpetscsnes -lpetscksp -lpetscdm -lpetscmat -lpetscvec -lpetsc
>  dolfin/libdolfin.so: undefined reference to `HYPRE_IJVectorGetObject'
>  dolfin/libdolfin.so: undefined reference to `HYPRE_BoomerAMGSetCycleType'
>  dolfin/libdolfin.so: undefined reference to `dpttrf_'
>  dolfin/libdolfin.so: undefined reference to `umfpack_di_report_numeric'
>  dolfin/libdolfin.so: undefined reference to `dswap_'
>  dolfin/libdolfin.so: undefined reference to `XCreatePixmap'
>  dolfin/libdolfin.so: undefined reference to `dpotrf_'
>  dolfin/libdolfin.so: undefined reference to `dgemm_'
>  dolfin/libdolfin.so: undefined reference to `HYPRE_BoomerAMGSetRelaxType'
>  dolfin/libdolfin.so: undefined reference to `HYPRE_BoomerAMGSetSmoothNumLevels'
>  dolfin/libdolfin.so: undefined reference to `HYPRE_IJMatrixCreate'
>  dolfin/libdolfin.so: undefined reference to `XSetForeground'
>  dolfin/libdolfin.so: undefined reference to `XUndefineCursor'
>  dolfin/libdolfin.so: undefined reference to `HYPRE_IJVectorInitialize'
>  dolfin/libdolfin.so: undefined reference to `HYPRE_ParaSailsSetParams'
>  dolfin/libdolfin.so: undefined reference to `HYPRE_IJMatrixSetRowSizes'
>  dolfin/libdolfin.so: undefined reference to `dnrm2_'
>  dolfin/libdolfin.so: undefined reference to `dscal_'
>  dolfin/libdolfin.so: undefined reference to `HYPRE_BoomerAMGSetCoarsenType'
>
>  ...
>
>
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-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which
their experiments lead.
-- Norbert Wiener