Can you write down (in matrix notation) what does full VB matrix look like?
Sherry On Mon, Jun 13, 2022 at 6:20 PM Tang, Qi <[email protected]> wrote: > Sherry, > > -mat_superlu_dist_replacetinypivot > This flag makes superlu_dist back to working for the full VB block as we > would think. Thanks again for the suggestion. > > Does this imply anything for the VB block matrix? Are we just unlucky or > does that imply we have tiny terms along the diagonal and the matrix is not > very good? (It could be the case since it is a stablized saddle point > problem.) Again, we estimate the condition number through petsc and it is > reasonable. > > Qi > > > On Jun 10, 2022, at 6:35 PM, Xiaoye S. Li <[email protected]> wrote: > > -mat_superlu_dist_replacetinypivot > >
