SNESSetApplicationContext#
Sets the optional user-defined context for the nonlinear solvers.
Synopsis#
#include "petscsnes.h"
PetscErrorCode SNESSetApplicationContext(SNES snes, void *ctx)
Logically Collective
Input Parameters#
snes - the
SNEScontextctx - the user context
Notes#
Users can provide a context when constructing the SNES options and then access it inside their function, Jacobian computation, or other evaluation function
with SNESGetApplicationContext()
To provide a function that computes the context for you use SNESSetComputeApplicationContext()
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 SNESGetApplicationContext() for
an example.
See Also#
SNES: Nonlinear Solvers, SNES, SNESSetComputeApplicationContext(), SNESGetApplicationContext()
Level#
intermediate
Location#
Examples#
src/snes/tutorials/ex5f90t.F90
src/snes/tutorials/ex5f90.F90
src/snes/tutorials/ex4.c
src/snes/tutorials/ex73f90t.F90
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages