[petsc-users] About MatMumpsSetIcntl function

[Jose E. Roman]

You have to call PCFactorGetMatrix() first. See any of the examples that use MatMumpsSetIcntl(), for instance https://petsc.org/release/src/ksp/ksp/tutorials/ex52.c.html

Jose


> El 30 nov 2022, a las 6:52, 김성익 <ksi2443 at gmail.com> escribió:
> 
> Hello,
> 
> 
> I tried to adopt METIS option in MUMPS by using 
> ' PetscCall(MatMumpsSetIcntl(Mat, 7, 5));'
> 
> However, there is an error as follows
> 
> [0]PETSC ERROR: Object is in wrong state
> [0]PETSC ERROR: Only for factored matrix
> [0]PETSC ERROR: See https://petsc.org/release/faq/ for trouble shooting.
> [0]PETSC ERROR: Petsc Release Version 3.18.1, unknown 
> [0]PETSC ERROR: ./app on a arch-linux-c-debug named ubuntu by ksi2443 Tue Nov 29 21:12:41 2022
> [0]PETSC ERROR: Configure options -download-mumps -download-scalapack -download-parmetis -download-metis
> [0]PETSC ERROR: #1 MatMumpsSetIcntl() at /home/ksi2443/petsc/src/mat/impls/aij/mpi/mumps/mumps.c:2478
> [0]PETSC ERROR: #2 main() at /home/ksi2443/Downloads/coding/a1.c:149
> [0]PETSC ERROR: No PETSc Option Table entries
> 
> How can I fix this error?
> 
> Thank you for your help.
> 
> 
> Hyung Kim