**petsc-3.13.5 2020-09-01**

# TSGetSNES

Returns the SNES (nonlinear solver) associated with a TS (timestepper) context. Valid only for nonlinear problems.
### Synopsis

#include "petscts.h"
PetscErrorCode TSGetSNES(TS ts,SNES *snes)

Not Collective, but SNES is parallel if TS is parallel

### Input Parameter

**ts ** -the TS context obtained from TSCreate()

### Output Parameter

**snes ** -the nonlinear solver context

### Notes

The user can then directly manipulate the SNES context to set various
options, etc. Likewise, the user can then extract and manipulate the
KSP, KSP, and PC contexts as well.
TSGetSNES() does not work for integrators that do not use SNES; in
this case TSGetSNES() returns NULL in snes.

### Level

beginner

### Location

src/ts/interface/ts.c
### Examples

src/ts/tutorials/ex4.c.html

src/ts/tutorials/ex7.c.html

src/ts/tutorials/ex10.c.html

src/ts/tutorials/ex12.c.html

src/ts/tutorials/ex14.c.html

src/ts/tutorials/ex15.c.html

src/ts/tutorials/ex17.c.html

src/ts/tutorials/ex22.c.html

src/ts/tutorials/ex24.c.html

src/ts/tutorials/ex22f.F.html

Index of all TS routines

Table of Contents for all manual pages

Index of all manual pages