SNESSetApplicationContext#

Sets the optional user-defined context for the nonlinear solvers.

Synopsis#

#include "petscsnes.h"  
PetscErrorCode SNESSetApplicationContext(SNES snes, void *usrP)

Logically Collective

Input Parameters#

  • snes - the SNES context

  • usrP - optional user context

Notes#

Users can provide a context when constructing the SNES options and then access it inside their function, Jacobian, or other evaluation function with SNESGetApplicationContext()

To provide a function that computes the context for you use SNESSetComputeApplicationContext()

Fortran Note#

You must write a Fortran interface definition for this function that tells Fortran the Fortran derived data type that you are passing in as the ctx argument.

See Also#

SNES: Nonlinear Solvers, SNES, SNESSetComputeApplicationContext(), SNESGetApplicationContext()

Level#

intermediate

Location#

src/snes/interface/snes.c

Examples#

src/snes/tutorials/ex5f90.F90
src/snes/tutorials/ex5f90t.F90
src/snes/tutorials/ex73f90t.F90


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Index of all SNES routines
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Index of all manual pages