[petsc-users] Parallel Incomplete Choleski Factorization

[Hong Zhang]

Michele :

>
> I need to use the ICC factorization as preconditioner, but I noticed that
> no parallel version is supported.
> Is that correct?
>
Correct.


> If so, is there a work around, like building  the preconditioner "by hand"
> by using PETSc functions?
>
You may try block jacobi with icc in the blocks  '-ksp_type cg -pc_type
bjacobi -sub_pc_type icc'

Hong

>
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