BlaILUSetupSTR.c File Reference

Setup incomplete LU decomposition for dSTRmat matrices. More...

#include <math.h>
#include "fasp.h"
#include "fasp_functs.h"

Go to the source code of this file.

Functions
void	fasp_ilu_dstr_setup0 (dSTRmat *A, dSTRmat *LU)
	Get ILU(0) decomposition of a structured matrix A. More...
void	fasp_ilu_dstr_setup1 (dSTRmat *A, dSTRmat *LU)
	Get ILU(1) decoposition of a structured matrix A. More...

Detailed Description

Setup incomplete LU decomposition for dSTRmat matrices.

Note

This file contains Level-1 (Bla) functions. It requires: AuxMemory.c, BlaSmallMat.c, BlaSmallMatInv.c, BlaSparseSTR.c, and BlaArray.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.

Definition in file BlaILUSetupSTR.c.

Function Documentation

fasp_ilu_dstr_setup0()

void fasp_ilu_dstr_setup0	(	dSTRmat *	A,
		dSTRmat *	LU
	)

Get ILU(0) decomposition of a structured matrix A.

Parameters

A	Pointer to dSTRmat
LU	Pointer to ILU structured matrix of REAL type

Author

Shiquan Zhang, Xiaozhe Hu

Date

11/08/2010

Note

Only works for 5 bands 2D and 7 bands 3D matrix with default offsets (order can be arbitrary)!

Definition at line 38 of file BlaILUSetupSTR.c.

fasp_ilu_dstr_setup1()

void fasp_ilu_dstr_setup1	(	dSTRmat *	A,
		dSTRmat *	LU
	)

Get ILU(1) decoposition of a structured matrix A.

Parameters

A	Pointer to oringinal structured matrix of REAL type
LU	Pointer to ILU structured matrix of REAL type

Author

Shiquan Zhang, Xiaozhe Hu

Date

11/08/2010

Note

Put L and U in a STR matrix and it has the following structure: the diag is d, the offdiag of L are alpha1 to alpha6, the offdiag of U are beta1 to beta6

Only works for 5 bands 2D and 7 bands 3D matrix with default offsets

Definition at line 333 of file BlaILUSetupSTR.c.