MatSetStencil#
Sets the grid information for setting values into a matrix via MatSetValuesStencil()
Synopsis#
#include "petscmat.h"
PetscErrorCode MatSetStencil(Mat mat, PetscInt dim, const PetscInt dims[], const PetscInt starts[], PetscInt dof)
Not Collective
Input Parameters#
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
Notes#
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.
See Also#
Matrices, Mat, MatStencil, MatSetOption(), MatAssemblyBegin(), MatAssemblyEnd(), MatSetValuesBlocked(), MatSetValuesLocal()
MatSetValues(), MatSetValuesBlockedStencil(), MatSetValuesStencil()
Level#
beginner
Location#
Examples#
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages