SNESSetComputeApplicationContext

Sets an optional function to compute a user-defined context for the nonlinear solvers.

Synopsis

#include "petscsnes.h"  
PetscErrorCode SNESSetComputeApplicationContext(SNES snes, PetscErrorCode (*compute)(SNES snes, void **ctx), PetscCtxDestroyFn *destroy)

Logically Collective; No Fortran Support

Input Parameters

• snes - the SNES context

• compute - function to compute the context

• destroy - function to destroy the context, see PetscCtxDestroyFn for the calling sequence

Calling sequence of compute

• snes - the SNES context

• ctx - context to be computed

Note

This routine is useful if you are performing grid sequencing or using SNESFAS and need the appropriate context generated for each level.

Use SNESSetApplicationContext() to see the context immediately

See Also

SNES: Nonlinear Solvers, SNESGetApplicationContext(), SNESSetApplicationContext(), PetscCtxDestroyFn

Level

intermediate

Location

src/snes/interface/snes.c

Examples

src/snes/tutorials/ex58.c

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Index of all SNES routines
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