petsc-3.12.4 2020-02-04
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# SNESGetKSP

Returns the KSP context for a SNES solver.

### Synopsis

    #include "petscsnes.h"
    PetscErrorCode  SNESGetKSP(SNES snes,KSP *ksp)

Not Collective, but if SNES object is parallel, then KSP object is parallel

### Input Parameter

snes -the SNES context

### Output Parameter

ksp -the KSP context

### Notes

The user can then directly manipulate the KSP context to set various options, etc. Likewise, the user can then extract and manipulate the PC contexts as well.

### See Also

KSPGetPC(), SNESCreate(), KSPCreate(), SNESSetKSP()

### Level

beginner

### Location

src/snes/interface/snes.c

### Examples

src/snes/examples/tutorials/ex1.c.html
src/snes/examples/tutorials/ex3.c.html
src/snes/examples/tutorials/ex5.c.html
src/snes/examples/tutorials/ex12.c.html
src/snes/examples/tutorials/ex28.c.html
src/snes/examples/tutorials/ex30.c.html
src/snes/examples/tutorials/ex56.c.html
src/snes/examples/tutorials/ex1f.F90.html
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages