petsc-3.8.4 2018-03-24

MatSetStencil

Sets the grid information for setting values into a matrix via MatSetValuesStencil()

#include "petscmat.h" 
PetscErrorCode MatSetStencil(Mat mat,PetscInt dim,const PetscInt dims[],const PetscInt starts[],PetscInt dof)

Not Collective

	mat	- the matrix
	dim	- dimension of the grid 1, 2, or 3
	dims	- number of grid points in x, y, and z direction, including ghost points on your processor
	starts	- starting point of ghost nodes on your processor in x, y, and z direction
	dof	- number of degrees of freedom per node

Inspired by the structured grid interface to the HYPRE package (www.llnl.gov/CASC/hyper)

For matrices generated with DMCreateMatrix() this routine is automatically called and so not needed by the user.