Invalid argument! - not a permutation!

[Matthew Knepley]

I think you need to tell use that the IS is a permutation:

http://www-unix.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/docs/manualpages/IS/ISSetPermutation.html

   Matt

On 10/25/07, Tim Stitt <timothy.stitt at ichec.ie> wrote:
> Hi all,
>
> Following on from some help I got a few days ago with respect to
> MatLUFactorSymbolic() usage in Fortran...I think I now have all the
> parts in place but keep getting the following runtime error upon execution:
>
> [0]PETSC ERROR: --------------------- Error Message
> ------------------------------------
> [0]PETSC ERROR: Invalid argument!
> [0]PETSC ERROR: not a permutation!
> ...
> [0]PETSC ERROR:
> ------------------------------------------------------------------------
> [0]PETSC ERROR: ISInvertPermutation() line 183 in
> src/vec/is/interface/index.c
> [0]PETSC ERROR: MatLUFactorSymbolic_SeqAIJ() line 276 in
> src/mat/impls/aij/seq/aijfact.c
> [0]PETSC ERROR: MatLUFactorSymbolic() line 2178 in
> src/mat/interface/matrix.c
> [localhost.localdomain:24730] MPI_ABORT invoked on rank 0 in
> communicator MPI_COMM_WORLD with errorcode 62
>
> Here is the portion of  the offending code (I think):
>
>   call MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY,error);CHKERRQ(error)
>   call MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY,error);CHKERRQ(error)
>   call ISCreateGeneral(PETSC_COMM_WORLD,order,columnIndices,
> indexSet,error);CHKERRQ(error)
>   call MatFactorInfoInitialize(info,error);CHKERRQ(error)
>   call
> MatLUFactorSymbolic(A,indexSet,indexSet,info,factorMat,error);CHKERRQ(error)
>
> order - number of rows/columns in square matrix A
> columnIndices - 1D array containing values 0-->order-1
>
> All types are set correctly as far as I can tell.
>
> Can anyone suggest why the execution falls over during the
> MatLUFactorSymbolic() call?
>
> Thanks again,
>
> Tim.
>
> --
> Dr. Timothy Stitt <timothy_dot_stitt_at_ichec.ie>
> HPC Application Consultant - ICHEC (www.ichec.ie)
>
> Dublin Institute for Advanced Studies
> 5 Merrion Square - Dublin 2 - Ireland
>
> +353-1-6621333 (tel) / +353-1-6621477 (fax)
>
>


-- 
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