petsc-3.7.1 2016-05-15
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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 Many br

Input Parameters

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

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

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

Many br

See Also

MatSetOption(), MatAssemblyBegin(), MatAssemblyEnd(), MatSetValuesBlocked(), MatSetValuesLocal()
MatSetValues(), MatSetValuesBlockedStencil(), MatSetValuesStencil() Many br

Level:beginner
Location:
src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/snes/examples/tutorials/ex48.c.html