IFEM/PETScPCPerm_8h_source.html

 // $Id

 //==============================================================================

 //==============================================================================


 #ifndef PCPERM_H_IS_INCLUDED

 #define PCPERM_H_IS_INCLUDED


 #include "petscksp.h"


 typedef struct {

   IS  *order;

   Mat Aperm;

   PC  pc;

   PetscBool identity;

 } PCPerm;


 extern PetscErrorCode PCPermCreate(PCPerm** pc);


 extern PetscErrorCode PCPermSetUp(PC pc, IS *perm, Mat A, const char* type);


 extern PetscErrorCode PCPermApply(PC pc, Vec x, Vec y);


 extern PetscErrorCode PCPermDestroy(PC pc);


 #endif

PCPermSetUp
PetscErrorCode PCPermSetUp(PC pc, IS *perm, Mat A, const char *type)
Configure the permutated preconditioner.
Definition: PETScPCPerm.C:38

PCPermApply
PetscErrorCode PCPermApply(PC pc, Vec x, Vec y)
Apply the permutated preconditioner.
Definition: PETScPCPerm.C:68

PCPermDestroy
PetscErrorCode PCPermDestroy(PC pc)
Destroy a permutated preconditioner.
Definition: PETScPCPerm.C:83

PCPermCreate
PetscErrorCode PCPermCreate(PCPerm **pcperm)
Create the permutated preconditioner.
Definition: PETScPCPerm.C:22

IS
int IS
To avoid compilation failures.
Definition: PETScSupport.h:51

PCPerm
Define context for user-defined preconditioner.
Definition: PETScPCPerm.h:21

PCPerm::order
IS * order
The index set describing the ordering.
Definition: PETScPCPerm.h:22

PCPerm::identity
PetscBool identity
true if the permutation is identity matrix
Definition: PETScPCPerm.h:25

PCPerm::pc
PC pc
Preconditioner definition.
Definition: PETScPCPerm.h:24

PCPerm::Aperm
Mat Aperm
Permutated matrix.
Definition: PETScPCPerm.h:23