#include "petscsnes.h" PetscErrorCode SNESGetPicard(SNES snes,Vec *r,PetscErrorCode (**f)(SNES,Vec,Vec,void*),Mat *Amat, Mat *Pmat, PetscErrorCode (**J)(SNES,Vec,Mat,Mat,void*),void **ctx)Not Collective, but Vec is parallel if SNES is parallel. Collective if Vec is requested, but has not been created yet.
|snes||- the SNES context|
|r||- the function (or NULL)|
|f||- the function (or NULL); see SNESFunction for calling sequence details|
|Amat||- the matrix used to defined the operation A(x) x - b(x) (or NULL)|
|Pmat||- the matrix from which the preconditioner will be constructed (or NULL)|
|J||- the function for matrix evaluation (or NULL); see SNESJacobianFunction for calling sequence details|
|ctx||- the function context (or NULL)|