[petsc-users] error 2 in QAMD : Schur size expected ...

[Matthew Knepley]

On Fri, Apr 8, 2022 at 12:57 PM Aleksandra Grudskaia <
agrudsk at mpa-garching.mpg.de> wrote:

> Dear PETSC team,
>
> Sometimes I get the error
>
> Internal error 2 in QAMD : Schur size expected: 0 Real: 1
>

This is an internal error in MUMPS, so we cannot control it.  I would
submit this to the MUMPS mailing list.

  Thanks,

      Matt


> And for me it seems that it appears absolutely randomly. In my code I
> use the following petsc files:
>
>
> #include <petscmat.h>
> #include <petscvec.h>
> #include <petscksp.h>
>
>
> In my bashrc file I have:
>
> module load petsc-real-double/3.13.5
>
>
> Could you please tell, why this error can occur?
>
>
> Thank you in advance,
>
> Yours,
>
> Aleksandra Grudskaia
>
>

-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener

https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
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