#include "petscpc.h" PetscErrorCode PCEisenstatGetNoDiagonalScaling(PC pc,PetscBool *flg)Logically Collective on PC
| pc | - the preconditioner context | 
| flg | - PETSC_TRUE means there is no diagonal scaling applied | 
| -pc_eisenstat_no_diagonal_scaling | - Activates PCEisenstatSetNoDiagonalScaling() |