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?
Fa?za
_____
De : Matthew Knepley [mailto:knepley at gmail.com]
Envoy? : mardi 9 mai 2006 18:19
? : 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 Fa?za <F.Boulahya at brgm.fr <mailto: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,
Fa?za
Pensez ? visiter le site BRGM sur.... http://www.brgm.fr/
***
Le contenu de cet e-mail et de ses pi?ces jointes est destin? ? l'usage
exclusif du
(des) destinataire(s) express?ment d?sign?(s) comme tel(s). En cas de r?ception
de cet
e-mail par erreur, le signaler ? son exp?diteur et ne pas en divulguer le
contenu.
L'absence de virus a ?t? v?rifi? ? l'?mission du message. Il convient
n?anmoins de
v?rifier l'absence de corruption ? sa r?ception.
The contents of this email and any attachments are confidential. They are
intended for
the named recipient(s) only. If you have received this email in error please
notify the
system manager or the sender immediately and do not disclose the contents to
anyone or make copies. eSafe scanned this email for viruses, vandals and
malicious
content.
***
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20060510/d50d00c5/attachment.htm>
