1: /*
  2:    Private data structure for ILU/ICC/LU/Cholesky preconditioners.
  3: */

  7: #include <petsc/private/pcimpl.h>

  9: typedef struct {
 10:   Mat              fact;              /* factored matrix */
 11:   MatFactorInfo    info;
 12:   MatOrderingType  ordering;          /* matrix reordering */
 13:   char             *solvertype;
 14:   MatFactorType    factortype;
 15:   PetscReal        actualfill;
 16:   PetscBool        inplace;            /* flag indicating in-place factorization */
 17:   PetscBool        reuseordering;      /* reuses previous reordering computed */
 18:   PetscBool        reusefill;          /* reuse fill from previous LU */
 19: } PC_Factor;

 21: PETSC_INTERN PetscErrorCode PCFactorInitialize(PC);
 22: PETSC_INTERN PetscErrorCode PCFactorGetMatrix_Factor(PC,Mat*);

 24: PETSC_INTERN PetscErrorCode PCFactorSetZeroPivot_Factor(PC,PetscReal);
 25: PETSC_INTERN PetscErrorCode PCFactorGetZeroPivot_Factor(PC,PetscReal*);
 26: PETSC_INTERN PetscErrorCode PCFactorSetShiftType_Factor(PC,MatFactorShiftType);
 27: PETSC_INTERN PetscErrorCode PCFactorGetShiftType_Factor(PC,MatFactorShiftType*);
 28: PETSC_INTERN PetscErrorCode PCFactorSetShiftAmount_Factor(PC,PetscReal);
 29: PETSC_INTERN PetscErrorCode PCFactorGetShiftAmount_Factor(PC,PetscReal*);
 30: PETSC_INTERN PetscErrorCode PCFactorSetDropTolerance_Factor(PC,PetscReal,PetscReal,PetscInt);
 31: PETSC_INTERN PetscErrorCode PCFactorSetFill_Factor(PC,PetscReal);
 32: PETSC_INTERN PetscErrorCode PCFactorSetMatOrderingType_Factor(PC,MatOrderingType);
 33: PETSC_INTERN PetscErrorCode PCFactorGetLevels_Factor(PC,PetscInt*);
 34: PETSC_INTERN PetscErrorCode PCFactorSetLevels_Factor(PC,PetscInt);
 35: PETSC_INTERN PetscErrorCode PCFactorSetAllowDiagonalFill_Factor(PC,PetscBool);
 36: PETSC_INTERN PetscErrorCode PCFactorGetAllowDiagonalFill_Factor(PC,PetscBool*);
 37: PETSC_INTERN PetscErrorCode PCFactorSetPivotInBlocks_Factor(PC,PetscBool);
 38: PETSC_INTERN PetscErrorCode PCFactorSetMatSolverType_Factor(PC,MatSolverType);
 39: PETSC_INTERN PetscErrorCode PCFactorSetUpMatSolverType_Factor(PC);
 40: PETSC_INTERN PetscErrorCode PCFactorGetMatSolverType_Factor(PC,MatSolverType*);
 41: PETSC_INTERN PetscErrorCode PCFactorSetColumnPivot_Factor(PC,PetscReal);
 42: PETSC_INTERN PetscErrorCode PCSetFromOptions_Factor(PetscOptionItems *PetscOptionsObject,PC);
 43: PETSC_INTERN PetscErrorCode PCView_Factor(PC,PetscViewer);

 45: #endif