SLESGetDiagonalScale

Checks if SLES solver scales the matrix and right hand side

Synopsis

#include "petscsles.h"    
int SLESGetDiagonalScale(SLES sles,PetscTruth *scale)

Not Collective

Input Parameter

sles -the SLES context

Output Parameter

scale -PETSC_TRUE or PETSC_FALSE

Notes

BE CAREFUL with this routine: it actually scales the matrix and right hand side that define the system. After the system is solved the matrix and right hand side remain scaled.

This routine is only used if the matrix and preconditioner matrix are the same thing.

Keywords