# PCLUSetReuseFill

When matrices with same nonzero structure are LU factored, this causes later ones to use the fill computed in the initial factorization.

### Synopsis

    #include "petscpc.h"
    PetscErrorCode PETSCKSP_DLLEXPORT PCLUSetReuseFill(PC pc,PetscTruth flag)

Collective on PC

### Input Parameters

| pc | - the preconditioner context
| flag | - PETSC_TRUE to reuse else PETSC_FALSE

### Options Database Key

-pc_lu_reuse_fill -Activates PCLUSetReuseFill()

### Keywords

PC, levels, reordering, factorization, incomplete, LU

### See Also

PCILUSetReuseOrdering(), PCLUSetReuseOrdering(), PCILUDTSetReuseFill()

Level:intermediate
Location:src/ksp/pc/impls/factor/lu/lu.c
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