[petsc-dev] Better error message for missing components

[Jed Brown]

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/>