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

Aleksandra Grudskaia agrudsk at MPA-Garching.MPG.DE
Fri Apr 8 10:16:43 CDT 2022

Dear PETSC team,

Sometimes I get the error

Internal error 2 in QAMD : Schur size expected: 0 Real: 1

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,


Aleksandra Grudskaia

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