On Thu, Aug 25, 2011 at 12:45 PM, Gabriele Jost <gjost at tacc.utexas.edu> wrote: > Thanks Hong. I am not sure I can switch, don't see the module available at my > site. > Can I use the flags you mentioned on the regular petsc 3.1? Yes. Hong
> ________________________________________ > From: petsc-dev-bounces at mcs.anl.gov [petsc-dev-bounces at mcs.anl.gov] on > behalf of Hong Zhang [hzhang at mcs.anl.gov] > Sent: Thursday, August 25, 2011 10:33 AM > To: For users of the development version of PETSc > Cc: Victor Eijkhout > Subject: Re: [petsc-dev] KSP Viewer problem in petsc3.1 > > Can you switch to petsc-dev? > Quite few bugs have been fixed in petsc-dev and superlu_dist since petsc-3.1. > You may try '-mat_superlu_dist_equil no -mat_superlu_dist_colperm NATURAL' > first. > > Hong > > On Thu, Aug 25, 2011 at 11:19 AM, Satish Balay <balay at mcs.anl.gov> wrote: >> 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 >>> >
