[petsc-dev] question about Krylov solves, symmetric matrices, and ICC

[Hong Zhang]

Paul :

>
> Does the Cholesky/ICC factorization have a specialized storage i.e. like the
> ILU storage?

Cholesky/ICC only stores upper half (U) matrix, not L.
ILU stores L and U.

Hong
>
> -Paul
>
>> Insert it as the upper triangular part in a MATSBAIJ, then everything you
>> want will work.
>
>