[petsc-dev] KSP Viewer problem in petsc3.1

[Gabriele Jost]

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?
Gabriele
________________________________________
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
>>