Class SparseBlockMatrix

java.lang.Object

solvers.linearSystem.btf.macroBlocks.SparseBlockMatrix

public class SparseBlockMatrix
extends Object

This class implements the underlying data structure of the Secondary Macro Blocks. It is a block matrix, composed of SparseBlocks.

Author:

Jack Bradshaw

Field Summary

Fields

Modifier and Type	Field	Description
protected CoMoMBasis	basis
protected int	block_cols
protected int	block_rows
int	cols
protected int	cols_in_blocks
protected SparseBlock[][]	matrix
protected Position	position
protected int	rows
protected int	rows_in_blocks

Constructor Summary

Constructors

Constructor	Description
SparseBlockMatrix(CoMoMBasis basis, Position position, Position size, Position divisions)
SparseBlockMatrix(SparseBlockMatrix block_matrix, Position divisions)

Method Summary

Modifier and Type	Method	Description
BigRational	get(int row, int col)
Position	getSize()
void	multiply(BigRational[] result)
void	printRow(int row)
void	solve(BigRational[] rhs)
void	write(int row, int col, BigRational value)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

basis

protected CoMoMBasis basis

matrix

protected SparseBlock[][] matrix

position

protected Position position

rows

protected int rows

cols

public int cols

block_rows

protected int block_rows

block_cols

protected int block_cols

rows_in_blocks

protected int rows_in_blocks

cols_in_blocks

protected int cols_in_blocks

Constructor Details

SparseBlockMatrix

public SparseBlockMatrix(CoMoMBasis basis,
 Position position,
 Position size,
 Position divisions)
                  throws BTFMatrixErrorException

Throws:

BTFMatrixErrorException

SparseBlockMatrix

public SparseBlockMatrix(SparseBlockMatrix block_matrix,
 Position divisions)

Method Details

write

public void write(int row,
 int col,
 BigRational value)

get

public BigRational get(int row,
 int col)

Parameters:

row -

col -

Returns:

returns the value at (row, col) of the block matrix (not a copy)

printRow

public void printRow(int row)

getSize

public Position getSize()

multiply

public void multiply(BigRational[] result)
              throws BTFMatrixErrorException

Throws:

BTFMatrixErrorException

solve

public void solve(BigRational[] rhs)
           throws BTFMatrixErrorException

Throws:

BTFMatrixErrorException