1 /* $Id: pc.h,v 1.78 1998/03/06 00:21:12 bsmith Exp bsmith $ */ 2 3 /* 4 Preconditioner module. 5 */ 6 #if !defined(__PC_PACKAGE) 7 #define __PC_PACKAGE 8 #include "petsc.h" 9 #include "mat.h" 10 11 extern DLList PCList; 12 typedef char *PCType; 13 14 #define PCNONE "none" 15 #define PCJACOBI "jacobi" 16 #define PCSOR "sor" 17 #define PCLU "lu" 18 #define PCSHELL "shell" 19 #define PCBJACOBI "bjacobi" 20 #define PCMG "mg" 21 #define PCEISENSTAT "eisenstat" 22 #define PCILU "ilu" 23 #define PCICC "icc" 24 #define PCASM "asm" 25 #define PCBGS "bgs" 26 #define PCSLES "sles" 27 #define PCCOMPOSITE "composite" 28 29 typedef struct _p_PC* PC; 30 #define PC_COOKIE PETSC_COOKIE+9 31 32 /* 33 Null space code is not yet developed 34 */ 35 typedef struct _p_PCNullSpace* PCNullSpace; 36 #define PCNULLSPACE_COOKIE PETSC_COOKIE+17 37 38 typedef enum { PC_LEFT, PC_RIGHT, PC_SYMMETRIC } PCSide; 39 40 extern int PCCreate(MPI_Comm,PC*); 41 extern int PCSetType(PC,PCType); 42 extern int PCSetUp(PC); 43 extern int PCSetUpOnBlocks(PC); 44 extern int PCApply(PC,Vec,Vec); 45 extern int PCApplySymmetricLeft(PC,Vec,Vec); 46 extern int PCApplySymmetricRight(PC,Vec,Vec); 47 extern int PCApplyBAorAB(PC,PCSide,Vec,Vec,Vec); 48 extern int PCApplyTrans(PC,Vec,Vec); 49 extern int PCApplyBAorABTrans(PC,PCSide,Vec,Vec,Vec); 50 extern int PCApplyRichardson(PC,Vec,Vec,Vec,int); 51 extern int PCApplyRichardsonExists(PC,PetscTruth*); 52 53 extern int PCRegisterDestroy(void); 54 extern int PCRegisterAll(char*); 55 extern int PCRegisterAllCalled; 56 57 extern int PCDestroy(PC); 58 extern int PCSetFromOptions(PC); 59 extern int PCGetType(PC,PCType*); 60 61 extern int PCGetFactoredMatrix(PC,Mat*); 62 extern int PCSetModifySubMatrices(PC,int(*)(PC,int,IS*,IS*,Mat*,void*),void*); 63 extern int PCModifySubMatrices(PC,int,IS*,IS*,Mat*,void*); 64 65 extern int PCSetOperators(PC,Mat,Mat,MatStructure); 66 extern int PCGetOperators(PC,Mat*,Mat*,MatStructure*); 67 68 extern int PCSetVector(PC,Vec); 69 extern int PCPrintHelp(PC); 70 extern int PCView(PC,Viewer); 71 72 extern int PCSetOptionsPrefix(PC,char*); 73 extern int PCAppendOptionsPrefix(PC,char*); 74 extern int PCGetOptionsPrefix(PC,char**); 75 76 extern int PCNullSpaceCreate(MPI_Comm,int,int,Vec *,PCNullSpace*); 77 extern int PCNullSpaceDestroy(PCNullSpace); 78 extern int PCNullSpaceRemove(PCNullSpace,Vec); 79 80 /* ------------- options specific to particular preconditioners --------- */ 81 extern int PCSORSetSymmetric(PC, MatSORType); 82 extern int PCSORSetOmega(PC, double); 83 extern int PCEisenstatSetOmega(PC, double); 84 extern int PCSORSetIterations(PC, int); 85 86 typedef enum {PCBGS_FORWARD_SWEEP=1,PCBGS_SYMMETRIC_SWEEP=2} PCBGSType; 87 extern int PCBGSSetSymmetric(PC, PCBGSType); 88 89 #define USE_PRECONDITIONER_MATRIX 0 90 #define USE_TRUE_MATRIX 1 91 extern int PCBJacobiSetUseTrueLocal(PC); 92 extern int PCBJacobiSetTotalBlocks(PC, int, int*); 93 extern int PCBJacobiSetLocalBlocks(PC, int, int*); 94 95 extern int PCBGSSetUseTrueLocal(PC); 96 extern int PCBGSSetTotalBlocks(PC, int, int*); 97 extern int PCBGSSetLocalBlocks(PC, int, int*); 98 extern int PCBGSSetSymmetric(PC, PCBGSType); 99 100 extern int PCSLESSetUseTrue(PC); 101 extern int PCCompositeSetUseTrue(PC); 102 103 extern int PCShellSetApply(PC, int (*)(void*,Vec,Vec), void*); 104 extern int PCShellSetApplyRichardson(PC,int (*)(void*,Vec,Vec,Vec,int),void*); 105 extern int PCShellSetName(PC,char*); 106 extern int PCShellGetName(PC,char**); 107 108 extern int PCLUSetMatReordering(PC,MatReorderingType); 109 extern int PCILUSetMatReordering(PC,MatReorderingType); 110 extern int PCLUSetUseInPlace(PC); 111 extern int PCLUSetFill(PC,double); 112 extern int PCILUSetUseInPlace(PC); 113 extern int PCILUSetFill(PC,double); 114 extern int PCILUSetLevels(PC,int); 115 extern int PCILUSetReuseReordering(PC,PetscTruth); 116 extern int PCILUSetUseDropTolerance(PC,double,int); 117 extern int PCILUSetReuseFill(PC,PetscTruth); 118 119 extern int PCEisenstatUseDiagonalScaling(PC); 120 121 extern int PCASMSetLocalSubdomains(PC, int, IS *); 122 extern int PCASMSetTotalSubdomains(PC, int, IS *); 123 extern int PCASMSetOverlap(PC, int); 124 typedef enum {PC_ASM_BASIC = 3,PC_ASM_RESTRICT = 1,PC_ASM_INTERPOLATE = 2,PC_ASM_NONE = 0} PCASMType; 125 extern int PCASMSetType(PC,PCASMType); 126 127 extern int PCASMCreateSubdomains2D(int,int,int,int,int,int,int *,IS **); 128 129 typedef enum {PC_COMPOSITE_ADDITIVE, PC_COMPOSITE_MULTIPLICATIVE} PCCompositeType; 130 extern int PCCompositeSetType(PC,PCCompositeType); 131 extern int PCCompositeAddPC(PC,PCType); 132 133 #endif 134 135 136 137 138