[petsc-users] How to set LU factorization in KSP

Moritz.Huck at isea.rwth-aachen.de Moritz.Huck at isea.rwth-aachen.de
Mon Dec 17 08:00:58 CST 2018


you need to set the KSP type  to KSPPREONLY and the PC type to LU as you did.

Then it will only call “the preconditioner” which is in this case the LU factorization.


Best Regards,



Von: petsc-users <petsc-users-bounces at mcs.anl.gov> Im Auftrag von Tsung-Hsing Chen via petsc-users
Gesendet: Montag, 17. Dezember 2018 14:55
An: PETSc users list <petsc-users at mcs.anl.gov>
Betreff: [petsc-users] How to set LU factorization in KSP




I'm looking for the function in PetscKSP that can do LU factorization.

What I'm using now is PCSetType(pc, PCLU), and not setting ksptype.

Is this the LU factorization setting of KSP?




Best regards,


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