1 /* $Id: petscpc.h,v 1.104 2000/07/26 15:20:16 bsmith Exp bsmith $ */ 2 3 /* 4 Preconditioner module. 5 */ 6 #if !defined(__PETSCPC_H) 7 #define __PETSCPC_H 8 #include "petscmat.h" 9 10 /* 11 PCList contains the list of preconditioners currently registered 12 These are added with the PCRegisterDynamic() macro 13 */ 14 extern FList PCList; 15 typedef char *PCType; 16 17 /* 18 Standard PETSc preconditioners 19 */ 20 #define PCNONE "none" 21 #define PCJACOBI "jacobi" 22 #define PCSOR "sor" 23 #define PCLU "lu" 24 #define PCSHELL "shell" 25 #define PCBJACOBI "bjacobi" 26 #define PCMG "mg" 27 #define PCEISENSTAT "eisenstat" 28 #define PCILU "ilu" 29 #define PCICC "icc" 30 #define PCASM "asm" 31 #define PCSLES "sles" 32 #define PCCOMPOSITE "composite" 33 #define PCREDUNDANT "redundant" 34 #define PCSPAI "spai" 35 #define PCMILU "milu" 36 37 typedef struct _p_PC* PC; 38 #define PC_COOKIE PETSC_COOKIE+9 39 40 41 typedef enum { PC_LEFT,PC_RIGHT,PC_SYMMETRIC } PCSide; 42 43 EXTERN int PCCreate(MPI_Comm,PC*); 44 EXTERN int PCSetType(PC,PCType); 45 EXTERN int PCSetUp(PC); 46 EXTERN int PCSetUpOnBlocks(PC); 47 EXTERN int PCApply(PC,Vec,Vec); 48 EXTERN int PCApplySymmetricLeft(PC,Vec,Vec); 49 EXTERN int PCApplySymmetricRight(PC,Vec,Vec); 50 EXTERN int PCApplyBAorAB(PC,PCSide,Vec,Vec,Vec); 51 EXTERN int PCApplyTranspose(PC,Vec,Vec); 52 EXTERN int PCApplyBAorABTranspose(PC,PCSide,Vec,Vec,Vec); 53 EXTERN int PCApplyRichardson(PC,Vec,Vec,Vec,int); 54 EXTERN int PCApplyRichardsonExists(PC,PetscTruth*); 55 56 EXTERN int PCRegisterDestroy(void); 57 EXTERN int PCRegisterAll(char*); 58 extern PetscTruth PCRegisterAllCalled; 59 60 EXTERN int PCRegister(char*,char*,char*,int(*)(PC)); 61 #if defined(PETSC_USE_DYNAMIC_LIBRARIES) 62 #define PCRegisterDynamic(a,b,c,d) PCRegister(a,b,c,0) 63 #else 64 #define PCRegisterDynamic(a,b,c,d) PCRegister(a,b,c,d) 65 #endif 66 67 EXTERN int PCDestroy(PC); 68 EXTERN int PCSetFromOptions(PC); 69 EXTERN int PCSetTypeFromOptions(PC); 70 EXTERN int PCGetType(PC,PCType*); 71 72 EXTERN int PCGetFactoredMatrix(PC,Mat*); 73 EXTERN int PCSetModifySubMatrices(PC,int(*)(PC,int,IS*,IS*,Mat*,void*),void*); 74 EXTERN int PCModifySubMatrices(PC,int,IS*,IS*,Mat*,void*); 75 76 EXTERN int PCSetOperators(PC,Mat,Mat,MatStructure); 77 EXTERN int PCGetOperators(PC,Mat*,Mat*,MatStructure*); 78 79 EXTERN int PCSetVector(PC,Vec); 80 EXTERN int PCGetVector(PC,Vec*); 81 EXTERN int PCPrintHelp(PC); 82 EXTERN int PCView(PC,Viewer); 83 84 EXTERN int PCSetOptionsPrefix(PC,char*); 85 EXTERN int PCAppendOptionsPrefix(PC,char*); 86 EXTERN int PCGetOptionsPrefix(PC,char**); 87 88 EXTERN int PCNullSpaceAttach(PC,MatNullSpace); 89 90 EXTERN int PCComputeExplicitOperator(PC,Mat*); 91 92 /* ------------- options specific to particular preconditioners --------- */ 93 94 EXTERN int PCSORSetSymmetric(PC,MatSORType); 95 EXTERN int PCSORSetOmega(PC,double); 96 EXTERN int PCSORSetIterations(PC,int); 97 98 EXTERN int PCEisenstatSetOmega(PC,double); 99 EXTERN int PCEisenstatNoDiagonalScaling(PC); 100 101 #define USE_PRECONDITIONER_MATRIX 0 102 #define USE_TRUE_MATRIX 1 103 EXTERN int PCBJacobiSetUseTrueLocal(PC); 104 EXTERN int PCBJacobiSetTotalBlocks(PC,int,int*); 105 EXTERN int PCBJacobiSetLocalBlocks(PC,int,int*); 106 107 EXTERN int PCSLESSetUseTrue(PC); 108 EXTERN int PCCompositeSetUseTrue(PC); 109 110 EXTERN int PCShellSetApply(PC,int (*)(void*,Vec,Vec),void*); 111 EXTERN int PCShellSetSetUp(PC,int (*)(void*)); 112 EXTERN int PCShellSetApplyRichardson(PC,int (*)(void*,Vec,Vec,Vec,int),void*); 113 EXTERN int PCShellSetName(PC,char*); 114 EXTERN int PCShellGetName(PC,char**); 115 116 EXTERN int PCLUSetMatOrdering(PC,MatOrderingType); 117 EXTERN int PCLUSetReuseOrdering(PC,PetscTruth); 118 EXTERN int PCLUSetReuseFill(PC,PetscTruth); 119 EXTERN int PCLUSetUseInPlace(PC); 120 EXTERN int PCLUSetFill(PC,double); 121 EXTERN int PCLUSetDamping(PC,double); 122 EXTERN int PCLUSetColumnPivoting(PC,PetscReal); 123 124 EXTERN int PCILUSetMatOrdering(PC,MatOrderingType); 125 EXTERN int PCILUSetUseInPlace(PC); 126 EXTERN int PCILUSetFill(PC,double); 127 EXTERN int PCILUSetLevels(PC,int); 128 EXTERN int PCILUSetReuseOrdering(PC,PetscTruth); 129 EXTERN int PCILUSetUseDropTolerance(PC,PetscReal,PetscReal,int); 130 EXTERN int PCILUSetReuseFill(PC,PetscTruth); 131 EXTERN int PCILUSetAllowDiagonalFill(PC); 132 EXTERN int PCILUSetDamping(PC,double); 133 134 EXTERN int PCASMSetLocalSubdomains(PC,int,IS *); 135 EXTERN int PCASMSetTotalSubdomains(PC,int,IS *); 136 EXTERN int PCASMSetOverlap(PC,int); 137 typedef enum {PC_ASM_BASIC = 3,PC_ASM_RESTRICT = 1,PC_ASM_INTERPOLATE = 2,PC_ASM_NONE = 0} PCASMType; 138 EXTERN int PCASMSetType(PC,PCASMType); 139 EXTERN int PCASMCreateSubdomains2D(int,int,int,int,int,int,int *,IS **); 140 EXTERN int PCASMSetUseInPlace(PC); 141 EXTERN int PCASMGetLocalSubdomains(PC,int*,IS**); 142 143 typedef enum {PC_COMPOSITE_ADDITIVE,PC_COMPOSITE_MULTIPLICATIVE} PCCompositeType; 144 EXTERN int PCCompositeSetType(PC,PCCompositeType); 145 EXTERN int PCCompositeAddPC(PC,PCType); 146 EXTERN int PCCompositeGetPC(PC pc,int n,PC *); 147 148 EXTERN int PCRedundantSetScatter(PC,VecScatter,VecScatter); 149 EXTERN int PCRedundantGetOperators(PC,Mat*,Mat*); 150 EXTERN int PCRedundantGetPC(PC,PC*); 151 152 #endif 153 154 155 156 157