petsc-3.13.6 2020-09-29

PCSORSetOmega

Sets the SOR relaxation coefficient, omega (where omega = 1.0 by default).

#include "petscpc.h" 
PetscErrorCode  PCSORSetOmega(PC pc,PetscReal omega)

Logically Collective on PC

	pc	- the preconditioner context
	omega	- relaxation coefficient (0 < omega < 2).

-pc_sor_omega <omega> -Sets omega

If omega != 1, you will need to set the MAT_USE_INODES option to PETSC_FALSE on the matrix.

intermediate