IFEM-2/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