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Jed Brown wrote:
On Sun 2008-04-13 18:21, Garth N. Wells wrote:Jed Brown wrote: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.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.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.
You can get around this problem for now by enabling shared libraries when building PETSc,
--with-shared=1 Garth
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' ... _______________________________________________ DOLFIN-dev mailing list DOLFIN-dev@xxxxxxxxxx http://www.fenics.org/mailman/listinfo/dolfin-dev
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