[petsc-users] Parallel Incomplete Choleski Factorization

[Michele Rosso]

Thank you,
Michele

On 07/13/2012 12:14 PM, Hong Zhang wrote:
> 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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