KSPSetComputeRHS#

set routine to compute the right-hand side of the linear system

Synopsis#

#include "petscksp.h" 
#include "petscmat.h" 
PetscErrorCode KSPSetComputeRHS(KSP ksp, KSPComputeRHSFn *func, void *ctx)

Logically Collective

ksp - the KSP context
func - function to compute the right-hand side, see KSPComputeRHSFn for the calling sequence
ctx - optional context

The routine you provide will be called EACH you call KSPSolve() to prepare the new right-hand side for that solve

beginner