PETSc version 3.15.5
PCGetDiagonalScale
Indicates if the preconditioner applies an additional left and right scaling as needed by certain time-stepping codes. 
Synopsis
#include "petscksp.h" 
PetscErrorCode  PCGetDiagonalScale(PC pc,PetscBool  *flag)
Logically Collective on PC
Input Parameter
|  | pc | - the preconditioner context | 
Output Parameter
Notes
If this returns PETSC_TRUE then the system solved via the Krylov method is
          D M A D^{-1} y = D M b  for left preconditioning or
          D A M D^{-1} z = D b for right preconditioning
See Also
 PCCreate(), PCSetUp(), PCDiagonalScaleLeft(), PCDiagonalScaleRight(), PCSetDiagonalScale()
Level
developer
Location
src/ksp/pc/interface/precon.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages