Petsc + BlockSolve95

[Barry Smith]

   Hmm, can anyone reproduce this in the debugger? What is the value
of op in MatSetOption_MPIAIJ() that is not accepted?

   Is this also Fortran?

    Barry

BTW: I have updated petsc-dev to print the numerical value of any
op that it claims is "unknown", instead of providing NO useful information
like it use to.

On Wed, 10 May 2006, Vaz, Guilherme wrote:

> Hello people,
>
>
>
> I have exactly the same problem as Faiza...
>
> In sequential it runs ok but in parallel not.
>
>
>
> Greetings.
>
>
>
> Guilherme
>
>
>
> -----Original Message-----
> From: owner-petsc-users at mcs.anl.gov [mailto:owner-petsc-users at mcs.anl.gov] On Behalf Of Boulahya Faïza
> Sent: 10 May 2006 10:39
> To: 'petsc-users at mcs.anl.gov'
> Subject: RE: Petsc + BlockSolve95
>
>
>
> Thanks.
>
>
>
> I tried something else :
>
>    - creation of the matrix with MatCreateMPIAIJ
>
>    - initialization
>
>    - adding of the options MAT_SYMMETRIC and MAT_SYMMETRY_ETERNAL
>
>
>
> When solving in sequential CG + ICC, everything is ok. When I tried in parallel the same code the options lead to the same error :
>
> [0]PETSC ERROR: MatSetOption_MPIAIJ() line 1251 in src/mat/impls/aij/mpi/mpiaij.c
> [0]PETSC ERROR: No support for this operation for this object type!
> [0]PETSC ERROR: unknown option!
> [0]PETSC ERROR: MatSetOption() line 4137 in src/mat/interface/matrix.c
>
> Can MatSetOption be only used in sequential?
>
>
>
>
>
> Faïza
>
>
>
>
>
> ________________________________
>
> De : Matthew Knepley [mailto:knepley at gmail.com]
> Envoyé : mardi 9 mai 2006 18:19
> À : petsc-users at mcs.anl.gov
> Objet : Re: Petsc + BlockSolve95
>
> I believe there is a problem with the option that you specified. All these
> are integers, and it is complaining that the integer does not match
> MAT_SYMMETRIC. I will fix the error message to print the offending
> option, but please check the code.
>
>  Thanks,
>
>     Matt
>
> On 5/9/06, Boulahya Faïza <F.Boulahya at brgm.fr> wrote:
>
> Hi All,
>
>
>
> Has anyone used Conjugate Gradient Solver + Icomplete Cholesky Preconditionner in parallel case? I tried as said in the manual : I use MATMPIROWBS for the storage of the matrice. However I get this message :
>
>
>
> PETSC ERROR: To use incomplete Cholesky
>                        preconditioning with a MATMPIROWBS matrix you must declare it to be
>                        symmetric using the option MatSetOption(A,MAT_SYMMETRIC)!
>
>
>
> So I tried adding this option (even if in the namual it is written that it is not required). Then I obtained this message
>
> PETSC ERROR: MatSetOption_MPIRowbs() line 1411 in src/mat/impls/rowbs/mpi/mpirowbs.c
> PETSC ERROR: No support for this operation for this object type!
> PETSC ERROR: unknown option!
> PETSC ERROR: MatSetOption() line 4137 in src/mat/interface/matrix.c
>
>
>
> In advance thanks,
>
>
>
>
>
> Faïza
>
>
>
>
> Pensez à visiter le site BRGM sur.... http://www.brgm.fr/
>
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