DMStagMatSetValuesStencil

insert or add matrix entries using grid indexing

Synopsis

#include "petscdmstag.h"   
PetscErrorCode DMStagMatSetValuesStencil(DM dm, Mat mat, PetscInt nRow, const DMStagStencil *posRow, PetscInt nCol, const DMStagStencil *posCol, const PetscScalar *val, InsertMode insertMode)

Not Collective

Input Parameters

• dm - the DMSTAG object

• mat - the matrix

• nRow - number of rows

• posRow - grid locations (including components) of rows

• nCol - number of columns

• posCol - grid locations (including components) of columns

• val - logically two-dimensional array of values

• insertMode - INSERT_VALUES or ADD_VALUES

Notes

See notes for MatSetValuesStencil()

See Also

DMSTAG: Staggered, Structured Grid, DMSTAG, DMStagStencil, DMStagStencilLocation, DMStagVecGetValuesStencil(), DMStagVecSetValuesStencil(), DMStagMatGetValuesStencil(), MatSetValuesStencil(), MatAssemblyBegin(), MatAssemblyEnd(), DMCreateMatrix()

Level

intermediate

Location

src/dm/impls/stag/stagstencil.c

Examples

src/dm/impls/stag/tutorials/ex1.c
src/dm/impls/stag/tutorials/ex8.c
src/dm/impls/stag/tutorials/ex4.c
src/dm/impls/stag/tutorials/ex2.c
src/dm/impls/stag/tutorials/ex3.c

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Index of all DMStag routines
Table of Contents for all manual pages
Index of all manual pages