Definitions used for direct solver interface. More...

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Functions
int	SetupBSolDirect (csrMat B, void *data)
	Setup the B-sol by computing the Cholesky factorization of B. More...

void	BSolDirect (double b, double x, void *data)
	Solver function of B. More...

void	LTSolDirect (double b, double x, void *data)
	Solver function of L^{T} x = L^{-T}*b. More...

void	FreeBSolDirectData (void *data)
	Free solver data. More...

int	SetupASIGMABSolDirect (csrMat A, csrMat BB, int num, complex double zk, void *data)
	setup CXsparse solver for A - SIGMA B More...

void	ASIGMABSolDirect (int n, double br, double bi, double xr, double xz, void *data)
	complex linear solver routine passed to evsl More...

void	FreeASIGMABSolDirect (int num, void **data)
	free the data needed by CXSparse More...

Detailed Description

Definitions used for direct solver interface.

Note that this file is meant to be the header file of both evsl_suitesparse.c, evsl_pardiso.c, and evsl_cxsparse.c. If more direct solver options will be added later, this should serve them as well.

Definition in file evsl_direct.h.

Function Documentation

void ASIGMABSolDirect	(	int	n,
		double *	br,
		double *	bi,
		double *	xr,
		double *	xz,
		void *	data
	)

complex linear solver routine passed to evsl

Parameters

	n	size of the system
	br,bi	vectors of length n, complex right-hand side (real and imaginary)
	data	all data that are needed for solving the system
[out]	xr,xz	vectors of length n, complex solution (real and imaginary)

Warning: : This function MUST be of this prototype

complex linear solver routine passed to evsl

Parameters

	n	size of the system
	br,bi	vectors of length n, complex right-hand side (real and imaginary)
	data	all data that are needed for solving the system
[out]	xr,xz	vectors of length n, complex solution (real and imaginary)

Warning: : This function MUST be of this prototype

Definition at line 324 of file evsl_cxsparse.c.

References _ASBSolDataDirect::b, CHKERR, cs_ci_ipvec(), cs_ci_lsolve(), cs_ci_usolve(), cs_complex_t, cs_ci_numeric::L, _ASBSolDataDirect::n, _ASBSolDataDirect::N, cs_ci_numeric::pinv, cs_ci_symbolic::q, _ASBSolDataDirect::S, cs_ci_numeric::U, and _ASBSolDataDirect::x.

Referenced by main(), and set_asigmabsol_direct().

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void BSolDirect	(	double *	b,
		double *	x,
		void *	data
	)

Solver function of B.

Definition at line 135 of file evsl_cxsparse.c.

References CHOLMOD, cholmod_B, cholmod_E, cholmod_X, cholmod_Y, _BSolDataDirect::cm, cs_di_ipvec(), cs_di_lsolve(), cs_di_ltsolve(), cs_di_pvec(), cs_di_numeric::L, _BSolDataDirect::LB, _BSolDataDirect::n, _BSolDataDirect::N, cs_di_symbolic::pinv, _BSolDataDirect::S, and _BSolDataDirect::w.

Referenced by main(), and setup_bsol_direct().

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void FreeASIGMABSolDirect	(	int	num,
		void **	data
	)

free the data needed by CXSparse

Definition at line 352 of file evsl_cxsparse.c.

References _ASBSolDataDirect::b, cs_ci_nfree(), cs_ci_sfree(), _ASBSolDataDirect::N, _ASBSolDataDirect::S, and _ASBSolDataDirect::x.

Referenced by free_asigmabsol_direct(), and main().

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void FreeBSolDirectData ( void * data )

Free solver data.

Definition at line 165 of file evsl_cxsparse.c.

References CHOLMOD, cholmod_E, cholmod_W, cholmod_Y, _BSolDataDirect::cm, cs_di_nfree(), cs_di_sfree(), _BSolDataDirect::LB, _BSolDataDirect::N, _BSolDataDirect::S, and _BSolDataDirect::w.

Referenced by free_bsol_direct(), and main().

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void LTSolDirect	(	double *	b,
		double *	x,
		void *	data
	)

Solver function of L^{T} x = L^{-T}*b.

Definition at line 151 of file evsl_cxsparse.c.

References CHOLMOD, cholmod_B, cholmod_E, cholmod_W, cholmod_X, cholmod_Y, _BSolDataDirect::cm, cs_di_ltsolve(), cs_di_pvec(), cs_di_numeric::L, _BSolDataDirect::LB, _BSolDataDirect::n, _BSolDataDirect::N, cs_di_symbolic::pinv, _BSolDataDirect::S, and _BSolDataDirect::w.

Referenced by main(), and setup_bsol_direct().

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int SetupASIGMABSolDirect	(	csrMat *	A,
		csrMat *	BB,
		int	num,
		complex double *	zk,
		void **	data
	)

setup CXsparse solver for A - SIGMA B

The setup invovles shifting the matrix A - SIGMA B and factorizing the shifted matrix The solver function and the data will be saved data Generally speaking, each pole can have a different solver

Parameters

A	matrix A
BB	matrix B, if NULL, it means B is identity
num	the number of SIGMA's
zk	array of SIGMA's of length num
data	all data that are needed for solving the system

setup CXsparse solver for A - SIGMA B

The setup invovles shifting the matrix A - SIGMA B and factorizing the shifted matrix The solver function and the data will be saved data Generally speaking, each pole can have a different solver

Parameters

A	matrix A
BB	matrix B, if NULL, it means B is identity
num	the number of SIGMA's
zk	array of SIGMA's of length num
data	all data that are needed for solving the system