PETSc version 3.17.4
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# PCCompositeSpecialSetAlpha

Sets alpha for the special composite preconditioner for alphaI + R + S

### Synopsis

    #include "petscksp.h"
    PetscErrorCode  PCCompositeSpecialSetAlpha(PC pc,PetscScalar alpha)

Logically Collective on PC

### Input Parameters

| pc | - the preconditioner context
| alpha | - scale on identity

### Level

Developer

### Location

src/ksp/pc/impls/composite/composite.c

### Implementations

PCCompositeSpecialSetAlpha_Composite in src/ksp/pc/impls/composite/composite.c
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