petsc-3.12.4 2020-02-04
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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
Index of all PC routines
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Index of all manual pages