Using the Spooles Cholesky solver via PETSc in serial

[Barry Smith]

    Stephen,

     This was an error in our last release and did not properly fixed
in a patch (why?). It will be in the next release.

    You can edit include/finclude/petscmat.h and add

       PetscEnum MAT_USE_COMPRESSEDROW,MAT_DO_NOT_USE_COMPRESSEDROW
       PetscEnum MAT_IGNORE_LOWER_TRIANGULAR,MAT_ERROR_LOWER_TRIANGULAR
       PetscEnum MAT_GETROW_UPPERTRIANGULAR

       parameter (MAT_USE_COMPRESSEDROW=89)
       parameter (MAT_DO_NOT_USE_COMPRESSEDROW=90)
       parameter (MAT_IGNORE_LOWER_TRIANGULAR=91)
       parameter (MAT_ERROR_LOWER_TRIANGULAR=92)
       parameter (MAT_GETROW_UPPERTRIANGULAR=93)

then it should work properly.

     Barry


On Fri, 2 Jun 2006, Stephen R Ball wrote:

>
> Hi
>
> I am using PETSc v2.3.1 (patch 9) via the Fortran interface. When I use the
> Spooles CHOLESKY solver in serial I get the error:
>
> 	MatSetValues_MPIBAIJ_MatScaler() line 259 in
> src/mat/impls/sbaij/mpi/mpisbaij.c
> 	Lower triangular value cannot be set for sbaij format. Ignoring
> these values, run with -mat_ignore_lower_triagular or call
> 	MatSetOption(mat,MAT_IGNORE_LOWER_TRIANGULAR)
> 	MatSetValues() line 827 in src/mat/interface/matrix
>
> The command line option works fine but when I try to use MatSetOption() with
> the MAT_IGNORE_LOWER_TRIANGULAR flag I get the error:
>
> 	This name does not have a type, and must have an explicit type.
> [MAT_IGNORE_LOWER_TRIANGULAR]
>
> Can you tell me if use of the MAT_IGNORE_LOWER_TRIANGULAR flag is supported
> in the Fortran interface for MatSetOption()?
>
> Regards
>
> Stephen R. Ball
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