petsc-3.14.5 2021-03-03
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# SNESFASCycleGetCorrection

Gets the coarse correction FAS context for this level

### Synopsis

    #include "petscsnes.h"
    PetscErrorCode SNESFASCycleGetCorrection(SNES snes, SNES *correction)

Logically Collective on SNES

### Input Parameters

| snes | - the multigrid context

### Output Parameters

| correction | - the coarse correction on this level

### Notes

Returns NULL on the coarsest level.

### See Also

SNESFASCycleGetSmootherUp(), SNESFASCycleGetSmoother()

### Level

advanced

### Location

src/snes/impls/fas/fasfunc.c
Index of all SNESFAS routines
Table of Contents for all manual pages
Index of all manual pages