petsc-3.3-p7 2013-05-11

SNESCreate

Creates a nonlinear solver context.

#include "petscsnes.h"  
#include "petscdmshell.h" 
#include "petscsys.h" 
PetscErrorCode  SNESCreate(MPI_Comm comm,SNES *outsnes)

Collective on MPI_Comm

comm -MPI communicator

outsnes -the new SNES context

	-snes_mf	- Activates default matrix-free Jacobian-vector products, and no preconditioning matrix
	-snes_mf_operator	- Activates default matrix-free Jacobian-vector products, and a user-provided preconditioning matrix as set by SNESSetJacobian()
	-snes_fd	- Uses (slow!) finite differences to compute Jacobian

SNES, nonlinear, create, context