1 2 /* 3 Preconditioner module. 4 */ 5 #if !defined(__PC_PACKAGE) 6 #define __PC_PACKAGE 7 #include "petsc.h" 8 #include "mat.h" 9 10 typedef enum { PCNONE, PCJACOBI, PCSOR, PCLU, PCSHELL, PCBJACOBI, PCMG, 11 PCESOR, PCILU, PCICC } PCMethod; 12 13 typedef struct _PC* PC; 14 #define PC_COOKIE PETSC_COOKIE+9 15 16 extern int PCCreate(MPI_Comm,PC*); 17 extern int PCSetMethod(PC,PCMethod); 18 extern int PCSetUp(PC); 19 extern int PCApply(PC,Vec,Vec); 20 extern int PCApplyBAorAB(PC,int,Vec,Vec,Vec); 21 extern int PCApplyTrans(PC,Vec,Vec); 22 extern int PCApplyBAorABTrans(PC,int,Vec,Vec,Vec); 23 extern int PCApplyRichardson(PC,Vec,Vec,Vec,int); 24 extern int PCApplyRichardsonExists(PC); 25 extern int PCRegisterAll(); 26 extern int PCRegisterDestroy(); 27 extern int PCRegister(PCMethod,char *,int (*)(PC)); 28 extern int PCDestroy(PC); 29 extern int PCSetFromOptions(PC); 30 extern int PCGetMethodFromContext(PC,PCMethod*); 31 extern int PCGetMethodName(PCMethod,char **); 32 33 /* Flags for PCSetOperators */ 34 #define MAT_SAME_NONZERO_PATTERN 1 35 36 extern int PCSetOperators(PC,Mat,Mat,int); 37 extern int PCBJacobiSetUseTrueLocal(PC); 38 extern int PCSetVector(PC,Vec); 39 extern int PCPrintHelp(PC); 40 extern int PCSetOptionsPrefix(PC,char*); 41 42 extern int PCSORSetSymmetric(PC, int); 43 extern int PCSORSetOmega(PC, double); 44 extern int PCEisenstatSetOmega(PC, double); 45 extern int PCSORSetIterations(PC, int); 46 47 extern int PCBJacobiSetBlocks(PC, int); 48 49 extern int PCBSIterSetBlockSolve(PC); 50 extern int PCBSIterSetFrompOptions(PC); 51 extern int PCBSIterSolve(PC,Vec,Vec,int*); 52 53 extern int PCShellSetApply(PC, int (*)(void*,Vec,Vec), void*); 54 extern int PCShellSetApplyRichardson(PC,int (*)(void*,Vec,Vec,Vec,int),void*); 55 56 extern int PCGetOperators(PC,Mat*,Mat*,int*); 57 58 extern int PCLUSetOrdering(PC,int); 59 extern int PCLUSetUseInplace(PC); 60 extern int PCILUSetOrdering(PC,int); 61 extern int PCILUSetLevels(PC,int); 62 63 #endif 64 65