PETSc version 3.15.5
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# PCHMGSetReuseInterpolation

Reuse interpolation matrices in HMG

### Synopsis

    #include "petscpc.h"
    PetscErrorCode PCHMGSetReuseInterpolation(PC pc, PetscBool reuse)

Logically Collective on PC

### Input Parameters

| pc | - the HMG context
| reuse | - True indicates that HMG will reuse the interpolations

### Options Database Keys

| -pc_hmg_reuse_interpolation <true | false> | - Whether or not to reuse the interpolations. If true, it potentially save the compute time.

### Keywords

HMG, multigrid, interpolation, reuse, set

### See Also

PCHMG

### Level

beginner

### Location

src/ksp/pc/impls/hmg/hmg.c

### Examples

src/ksp/ksp/tutorials/ex4.c.html

### Implementations

PCHMGSetReuseInterpolation_HMG in src/ksp/pc/impls/hmg/hmg.c
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