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, PCDIRECT, PCSHELL, PCBJACOBI} 11 PCMETHOD; 12 13 typedef struct _PC* PC; 14 15 extern int PCCreate(PC*); 16 extern int PCSetMethod(PC,PCMETHOD); 17 extern int PCSetUp(PC); 18 extern int PCApply(PC,Vec,Vec); 19 extern int PCApplyBAorAB(PC,int,Vec,Vec,Vec); 20 extern int PCApplyTrans(PC,Vec,Vec); 21 extern int PCApplyBAorABTrans(PC,int,Vec,Vec,Vec); 22 extern int PCApplyRichardson(PC,Vec,Vec,Vec,int); 23 extern int PCApplyRichardsonExists(PC); 24 extern int PCRegisterAll(); 25 extern int PCRegister(PCMETHOD,char *,int (*)(PC)); 26 extern int PCDestroy(PC); 27 extern int PCSetFromOptions(PC); 28 extern int PCGetMethodFromOptions(PC pc,PCMETHOD *); 29 extern int PCPrintMethods(char*,char *); 30 extern int PCGetMethodFromContext(PC,PCMETHOD*); 31 extern int PCGetMethodName(PCMETHOD,char **); 32 extern int PCSetMatrix(PC,Mat); 33 extern int PCGetMatrix(PC,Mat*); 34 extern int PCSetVector(PC,Vec); 35 extern int PCPrintHelp(PC); 36 extern int PCSetOptionsPrefix(PC,char*); 37 38 extern int PCSORSetSymmetric(PC, int); 39 extern int PCSORSetOmega(PC, double); 40 extern int PCSORSetIterations(PC, int); 41 42 extern int PCBJacobiSetBlocks(PC, int); 43 44 extern int PCShellSetApply(PC, int (*)(void*,Vec,Vec), void*); 45 46 #endif 47