GSparseSymbolic.hpp File Reference

Sparse matrix symbolic analysis class definition. More...

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Classes
class	GSparseSymbolic
	Sparse matrix symbolic analysis class. More...

Functions
GMatrixSparse	cs_symperm (const GMatrixSparse &matrix, const int *pinv)
	cs_symperm More...
GMatrixSparse	cs_transpose (const GMatrixSparse &matrix, int values)
double	cs_cumsum (int *p, int *c, int n)
	cs_cumsum More...

Detailed Description

Sparse matrix symbolic analysis class definition.

Author

Juergen Knoedlseder

Definition in file GSparseSymbolic.hpp.

Function Documentation

double cs_cumsum	(	int *	p,
		int *	c,
		int	n
	)

cs_cumsum

Parameters

[out]	p	Integer array (n+1 elements).
[in]	c	Integer array (n elements).
[in]	n	Number of elements.

Evaluate p[0..n] = cumulative sum of c[0..n-1]

Definition at line 3988 of file GMatrixSparse.cpp.

Referenced by GSparseSymbolic::cholesky_symbolic_analysis(), cs_symperm(), and cs_transpose().

GMatrixSparse cs_symperm	(	const GMatrixSparse &	matrix,
		const int *	pinv
	)

cs_symperm

Parameters

[in]	matrix	Matrix.
[in]	pinv	TBD.

Returns matrix(p,p) where matrix and matrix(p,p) are symmetric the upper part stored.

Definition at line 3835 of file GMatrixSparse.cpp.

References cs_cumsum(), GMatrixSparse::free_elements(), G_MAX, G_MIN, GMatrixBase::m_cols, GMatrixBase::m_colstart, GMatrixBase::m_data, GMatrixBase::m_elements, and GMatrixSparse::m_rowinx.

Referenced by GSparseNumeric::cholesky_numeric_analysis(), and GSparseSymbolic::cholesky_symbolic_analysis().

GMatrixSparse cs_transpose	(	const GMatrixSparse &	matrix,
		int	values
	)

Definition at line 3921 of file GMatrixSparse.cpp.

References cs_cumsum(), GMatrixBase::is_empty(), GMatrixBase::m_cols, GMatrixBase::m_colstart, GMatrixBase::m_data, GMatrixBase::m_elements, GMatrixSparse::m_rowinx, and GMatrixBase::m_rows.

Referenced by GSparseSymbolic::cs_amd(), and GSparseSymbolic::cs_counts().