PETSc version 3.16.5
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# PCDeflationGetCoarseKSP

Returns the coarse problem KSP.

### Synopsis

    #include "petscksp.h"
    PetscErrorCode  PCDeflationGetCoarseKSP(PC pc,KSP *ksp)

Not Collective

### Input Parameters

| pc | - preconditioner context

### Output Parameters

| ksp | - coarse problem KSP context

### See Also

PCDEFLATION

### Level

advanced

### Location

src/ksp/pc/impls/deflation/deflation.c

### Implementations

PCDeflationGetCoarseKSP_Deflation in src/ksp/pc/impls/deflation/deflation.c
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