[petsc-dev] KSP Viewer problem in petsc3.1
Satish Balay
balay at mcs.anl.gov
Thu Aug 25 11:19:15 CDT 2011
Its a patch to petsc - its already be the latest patched tarball - petsc-3.1-p8.tar.gz
[attaching it]
Satish
On Thu, 25 Aug 2011, Gabriele Jost wrote:
> Hello!
>
> I am running into a problem when using petsc 3.1 and SuperLU.
>
> KSP Object:
> type: preonly
> maximum iterations=5000, initial guess is zero
> tolerances: relative=1e-06, absolute=1e-50, divergence=10000
> left preconditioning
> using PRECONDITIONED norm type for convergence test
> PC Object:
> type: lu
> LU: out-of-place factorization
> tolerance for zero pivot 1e-12
> matrix ordering: natural
> factor fill ratio given 0, needed 0
> Factored matrix follows:
> Matrix Object:
> type=mpiaij, rows=13608, cols=13608
> package used to perform factorization: superlu_dist
> total: nonzeros=0, allocated nonzeros=27216
> SuperLU_DIST run parameters:
> Process grid nprow 8 x npcol 8
> Equilibrate matrix TRUE
> Matrix input mode 1
> Replace tiny pivots TRUE
> Use iterative refinement FALSE
> Processors in row 8 col partition 8
> Row permutation LargeDiag
> [59]PETSC ERROR: --------------------- Error Message ------------------------------------
> [60]PETSC ERROR: Petsc Release Version 3.1.0, Patch 5, Mon Sep 27 11:51:54 CDT 2010
> [62]PETSC ERROR: [53]PETSC ERROR: Unknown column permutation!
> See docs/changes/index.html for recent updates.
>
>
> I googled around and found that a similar problem had been reported to the Petsc folks before. The answer was as follows:
>
> On Wed, 15 Dec 2010, Satish Balay wrote:
>
> > Can you try the attached patch - and see if this goes away?
> >
> > patch -Np1 < superlu_dist.patch
> >
>
>
> Is the patch above included in the SLU that is part of the petsc 3.1 distribution? If not, could we get it?
>
> Thanks so much in advance and best regards,
> Gabriele
>
-------------- next part --------------
diff -r aabb5f301af6 src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
--- a/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c Sat Nov 20 16:12:27 2010 -0600
+++ b/src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c Wed Dec 15 13:36:17 2010 -0600
@@ -701,8 +701,6 @@
ierr = PetscViewerASCIIPrintf(viewer," Column permutation MMD_ATA\n");CHKERRQ(ierr);
} else if (options.ColPerm == PARMETIS) {
ierr = PetscViewerASCIIPrintf(viewer," Column permutation PARMETIS\n");CHKERRQ(ierr);
- } else {
- SETERRQ(PETSC_ERR_ARG_WRONG,"Unknown column permutation");
}
ierr = PetscViewerASCIIPrintf(viewer," Parallel symbolic factorization %s \n",PetscTruths[options.ParSymbFact != NO]);CHKERRQ(ierr);
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