PreBLC.c File Reference

Preconditioners for dBLCmat matrices. More...

#include "fasp.h"
#include "fasp_block.h"
#include "fasp_functs.h"

Go to the source code of this file.

Functions
void	fasp_precond_dblc_diag_3 (REAL *r, REAL *z, void *data)
	Block diagonal preconditioner (3x3 blocks) More...
void	fasp_precond_dblc_diag_3_amg (REAL *r, REAL *z, void *data)
	Block diagonal preconditioning (3x3 blocks) More...
void	fasp_precond_dblc_diag_4 (REAL *r, REAL *z, void *data)
	Block diagonal preconditioning (4x4 blocks) More...
void	fasp_precond_dblc_lower_3 (REAL *r, REAL *z, void *data)
	block lower triangular preconditioning (3x3 blocks) More...
void	fasp_precond_dblc_lower_3_amg (REAL *r, REAL *z, void *data)
	block lower triangular preconditioning (3x3 blocks) More...
void	fasp_precond_dblc_lower_4 (REAL *r, REAL *z, void *data)
	block lower triangular preconditioning (4x4 blocks) More...
void	fasp_precond_dblc_upper_3 (REAL *r, REAL *z, void *data)
	block upper triangular preconditioning (3x3 blocks) More...
void	fasp_precond_dblc_upper_3_amg (REAL *r, REAL *z, void *data)
	block upper triangular preconditioning (3x3 blocks) More...
void	fasp_precond_dblc_SGS_3 (REAL *r, REAL *z, void *data)
	Block symmetric GS preconditioning (3x3 blocks) More...
void	fasp_precond_dblc_SGS_3_amg (REAL *r, REAL *z, void *data)
	Block symmetric GS preconditioning (3x3 blocks) More...
void	fasp_precond_dblc_sweeping (REAL *r, REAL *z, void *data)
	Sweeping preconditioner for Maxwell equations. More...

Detailed Description

Preconditioners for dBLCmat matrices.

Note

This file contains Level-4 (Pre) functions. It requires: AuxArray.c, AuxMemory.c, AuxVector.c, BlaSpmvCSR.c, and PreMGCycle.c

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Copyright (C) 2009–Present by the FASP team. All rights reserved.

Released under the terms of the GNU Lesser General Public License 3.0 or later.

TODO: Separate solve and setup phases for direct solvers!!! –Chensong

Definition in file PreBLC.c.

Function Documentation

fasp_precond_dblc_diag_3()

void fasp_precond_dblc_diag_3	(	REAL *	r,
		REAL *	z,
		void *	data
	)

Block diagonal preconditioner (3x3 blocks)

Parameters

r	Pointer to the vector needs preconditioning
z	Pointer to preconditioned vector
data	Pointer to precondition data

Author

Xiaozhe Hu

Date

07/10/2014

Note

Each diagonal block is solved exactly

Definition at line 38 of file PreBLC.c.

fasp_precond_dblc_diag_3_amg()

void fasp_precond_dblc_diag_3_amg	(	REAL *	r,
		REAL *	z,
		void *	data
	)

Block diagonal preconditioning (3x3 blocks)

Parameters

r	Pointer to the vector needs preconditioning
z	Pointer to preconditioned vector
data	Pointer to precondition data

Author

Xiaozhe Hu

Date

07/10/2014

Note

Each diagonal block is solved by AMG

Definition at line 126 of file PreBLC.c.

fasp_precond_dblc_diag_4()

void fasp_precond_dblc_diag_4	(	REAL *	r,
		REAL *	z,
		void *	data
	)

Block diagonal preconditioning (4x4 blocks)

Parameters

r	Pointer to the vector needs preconditioning
z	Pointer to preconditioned vector
data	Pointer to precondition data

Author

Xiaozhe Hu

Date

07/10/2014

Note

Each diagonal block is solved exactly

Definition at line 191 of file PreBLC.c.

fasp_precond_dblc_lower_3()

void fasp_precond_dblc_lower_3	(	REAL *	r,
		REAL *	z,
		void *	data
	)

block lower triangular preconditioning (3x3 blocks)

Parameters

r	Pointer to the vector needs preconditioning
z	Pointer to preconditioned vector
data	Pointer to precondition data

Author

Xiaozhe Hu

Date

07/10/2014

Note

Each diagonal block is solved exactly

Definition at line 291 of file PreBLC.c.

fasp_precond_dblc_lower_3_amg()

void fasp_precond_dblc_lower_3_amg	(	REAL *	r,
		REAL *	z,
		void *	data
	)

block lower triangular preconditioning (3x3 blocks)

Parameters

r	Pointer to the vector needs preconditioning
z	Pointer to preconditioned vector
data	Pointer to precondition data

Author

Xiaozhe Hu

Date

07/10/2014

Note

Each diagonal block is solved by AMG

Definition at line 379 of file PreBLC.c.

fasp_precond_dblc_lower_4()

void fasp_precond_dblc_lower_4	(	REAL *	r,
		REAL *	z,
		void *	data
	)

block lower triangular preconditioning (4x4 blocks)

Parameters

r	Pointer to the vector needs preconditioning
z	Pointer to preconditioned vector
data	Pointer to precondition data

Author

Xiaozhe Hu

Date

07/10/2014

Note

Each diagonal block is solved exactly

Definition at line 453 of file PreBLC.c.

fasp_precond_dblc_SGS_3()

void fasp_precond_dblc_SGS_3	(	REAL *	r,
		REAL *	z,
		void *	data
	)

Block symmetric GS preconditioning (3x3 blocks)

Parameters

r	Pointer to the vector needs preconditioning
z	Pointer to preconditioned vector
data	Pointer to precondition data

Author

Xiaozhe Hu

Date

02/19/2015

Note

Each diagonal block is solved exactly

Definition at line 725 of file PreBLC.c.

fasp_precond_dblc_SGS_3_amg()

void fasp_precond_dblc_SGS_3_amg	(	REAL *	r,
		REAL *	z,
		void *	data
	)

Block symmetric GS preconditioning (3x3 blocks)

Parameters

r	Pointer to the vector needs preconditioning
z	Pointer to preconditioned vector
data	Pointer to precondition data

Author

Xiaozhe Hu

Date

02/19/2015

Note

Each diagonal block is solved by AMG

Definition at line 838 of file PreBLC.c.

fasp_precond_dblc_sweeping()

void fasp_precond_dblc_sweeping	(	REAL *	r,
		REAL *	z,
		void *	data
	)

Sweeping preconditioner for Maxwell equations.

Parameters

r	Pointer to the vector needs preconditioning
z	Pointer to preconditioned vector
data	Pointer to precondition data

Author

Xiaozhe Hu

Date

05/01/2014

Note

Each diagonal block is solved exactly

Definition at line 939 of file PreBLC.c.

fasp_precond_dblc_upper_3()

void fasp_precond_dblc_upper_3	(	REAL *	r,
		REAL *	z,
		void *	data
	)

block upper triangular preconditioning (3x3 blocks)

Parameters

r	Pointer to the vector needs preconditioning
z	Pointer to preconditioned vector
data	Pointer to precondition data

Author

Xiaozhe Hu

Date

02/18/2015

Note

Each diagonal block is solved exactly

Definition at line 557 of file PreBLC.c.

fasp_precond_dblc_upper_3_amg()

void fasp_precond_dblc_upper_3_amg	(	REAL *	r,
		REAL *	z,
		void *	data
	)

block upper triangular preconditioning (3x3 blocks)

Parameters

r	Pointer to the vector needs preconditioning
z	Pointer to preconditioned vector
data	Pointer to precondition data

Author

Xiaozhe Hu

Date

02/19/2015

Note

Each diagonal block is solved by AMG

Definition at line 645 of file PreBLC.c.