DMSetApplicationContext#
Set a user context into a DM object
Synopsis#
#include "petscdm.h"
#include "petscdmlabel.h"
#include "petscds.h"
PetscErrorCode DMSetApplicationContext(DM dm, void *ctx)
Not Collective
Input Parameters#
dm - the
DMobjectctx - the user context
Note#
A user context is a way to pass problem specific information that is accessible whenever the DM is available
In a multilevel solver, the user context is shared by all the DM in the hierarchy; it is thus not advisable
to store objects that represent discretized quantities inside the context.
Fortran Note#
This only works when ctx is a Fortran derived type (it cannot be a PetscObject), we recommend writing a Fortran interface definition for this
function that tells the Fortran compiler the derived data type that is passed in as the ctx argument. See DMGetApplicationContext() for
an example.
See Also#
DM Basics, DM, DMGetApplicationContext(), DMView(), DMCreateGlobalVector(), DMCreateInterpolation(), DMCreateColoring(), DMCreateMatrix(), DMCreateMassMatrix()
Level#
intermediate
Location#
Examples#
src/snes/tutorials/ex34.c
src/snes/tutorials/ex23.c
src/snes/tutorials/ex17.c
src/snes/tutorials/ex22.c
src/snes/tutorials/ex5.c
src/snes/tutorials/ex19.c
src/snes/tutorials/ex63.c
src/snes/tutorials/ex27.c
src/snes/tutorials/ex64.c
src/dm/tutorials/swarm_ex3.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages