[petsc-dev] Better error message for missing components

[Nathan Collier]

Personally, I would see the educational aspect as helpful. Most of what I
learn about PETSc comes from '-help | grep XXX'.

Nate

On Tue, Oct 1, 2019 at 11:27 AM Jed Brown via petsc-dev <
petsc-dev at mcs.anl.gov> wrote:

> Matthew Knepley via petsc-dev <petsc-dev at mcs.anl.gov> writes:
>
> > Can anyone think of a way to get a better message from
>
> We could register all types and implement PetscViewerCreate_HDF5() to
> raise an error when not configured with HDF5.  The "downside" is that
> -help would show implementations that aren't supported by the current
> configuration, but I see that as a minor consequence, and perhaps not
> even negative (because users would learn about implementations that
> might be useful).
>
> > [0]PETSC ERROR: --------------------- Error Message
> > --------------------------------------------------------------
> > [0]PETSC ERROR: Unknown type. Check for miss-spelling or missing package:
> > http://www.mcs.anl.gov/petsc/documentation/installation.html#external
> > [0]PETSC ERROR: Unknown PetscViewer type given: hdf5
> > [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html
> for
> > trouble shooting.
> > [0]PETSC ERROR: Petsc Release Version 3.10.2, Oct, 09, 2018
> > [0]PETSC ERROR: ./testPlex on a  named kif.eng.buffalo.edu by bldenton
> Mon
> > Sep 30 21:18:30 2019
> > [0]PETSC ERROR: Configure options --with-make-np=24
> >
> --prefix=/kif1/data/shared/software/libs/petsc/3.10.2/gcc/8.2.0/mpich/3.2.1/openblas/0.2.20/opt
> > --with-debugging=false --COPTFLAGS="-O3 -mavx" --CXXOPTFLAGS="-O3 -mavx"
> > --FOPTFLAGS=-O3 --with-shared-libraries=1
> > --with-mpi-dir=/kif1/data/shared/software/libs/mpich/3.2.1/gcc/8.2.0
> > --with-mumps=true --download-mumps=1 --with-metis=true --download-metis=1
> > --with-parmetis=true --download-parmetis=1 --with-superlu=true
> > --download-superlu=1 --with-superludir=true --download-superlu_dist=1
> > --with-blacs=true --download-blacs=1 --with-scalapack=true
> > --download-scalapack=1 --with-hypre=true --download-hypre=1
> >
> --with-blas-lib="[/kif1/data/shared/software/libs/openblas/0.2.20/gcc/8.2.0/lib/libopenblas.so]"
> >
> --with-lapack-lib="[/kif1/data/shared/software/libs/openblas/0.2.20/gcc/8.2.0/lib/libopenblas.so]"
> > --LDFLAGS=
> > [0]PETSC ERROR: #1 PetscViewerSetType() line 444 in
> >
> /kif1/data/shared/software/builddir/petsc-L9c6Pv/petsc-3.10.2/src/sys/classes/viewer/interface/viewreg.c
> > [0]PETSC ERROR: #2 PetscOptionsGetViewer() line 327 in
> >
> /kif1/data/shared/software/builddir/petsc-L9c6Pv/petsc-3.10.2/src/sys/classes/viewer/interface/viewreg.c
> > [0]PETSC ERROR: #3 PetscObjectViewFromOptions() line 133 in
> >
> /kif1/data/shared/software/builddir/petsc-L9c6Pv/petsc-3.10.2/src/sys/objects/destroy.c
> > [0]PETSC ERROR: #4 main() line 210 in
> > /kif1/data/users/bldenton/EGADSlite/egadsPlex/egadsPlex.c
> >
> > I want it to say "Try configuring with --download-hdf5"
> >
> >   Thanks,
> >
> >      Matt
> >
> > --
> > 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
> >
> > https://www.cse.buffalo.edu/~knepley/ <
> http://www.cse.buffalo.edu/~knepley/>
>
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