petsc-3.13.6 2020-09-29

KSPSetPC

Sets the preconditioner to be used to calculate the Section 1.5 Writing Application Codes with PETSc of the preconditioner on a vector.

#include "petscksp.h" 
PetscErrorCode  KSPSetPC(KSP ksp,PC pc)

Collective on ksp

	ksp	- iterative context obtained from KSPCreate()
	pc	- the preconditioner object

Use KSPGetPC() to retrieve the preconditioner context (for example, to free it at the end of the computations).

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