libs/ck-libs/ifem/ilsic.h File Reference

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Data Structures
struct	ILSI_Param
	This struct gives the input and output parameters for an IDXL_Solver. More...
Typedefs
typedef struct ILSI_Comm	ILSI_Comm
	An ILSI_Comm is actually a C++ class--see ilsi.h.
typedef void(*	ILSI_Solver )(ILSI_Param *param, ILSI_Comm *comm, int n, const double *b, double *x)
	An ILSI_Solver is a routine that computes, in parallel, the solution x to the linear equation A x = b.
Functions
void	ILSI_Param_new (ILSI_Param *param)
	Set default values for solver parameters.
void	ILSI_CG_Solver (ILSI_Param *param, ILSI_Comm *comm, int n, const double *b, double *x)
	Conjugate-gradient solver: requires symmetric positive definite matrix.

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Typedef Documentation

typedef struct ILSI_Comm ILSI_Comm

An ILSI_Comm is actually a C++ class--see ilsi.h.

Definition at line 34 of file ilsic.h.

typedef void(* ILSI_Solver)(ILSI_Param *param, ILSI_Comm *comm, int n, const double *b, double *x)

An ILSI_Solver is a routine that computes, in parallel, the solution x to the linear equation A x = b.

ILSI_Solvers must be written in C++, since ILSI_Comm is C++.

Parameters:

	param	Assorted input and output parameters for solver.
	comm	The partitioned parallel matrix A and communication system for the solver.
	n	The length of the local part of the solution vectors.
	b	The local part of the known vector. Never modified.
	x	On input, the initial guess for the solution. During execution, the intermediate solution values. On output, the final solution.

Definition at line 51 of file ilsic.h.

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Function Documentation

void ILSI_Param_new

(

ILSI_Param *

param

)

Set default values for solver parameters.

Definition at line 11 of file ilsi.C.

References ILSI_Param::iterations, ILSI_Param::maxIterations, ILSI_Param::maxResidual, ILSI_Param::residual, ILSI_Param::solverIn, and ILSI_Param::solverOut.

Referenced by main().

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void ILSI_CG_Solver	(	ILSI_Param *	param,
		ILSI_Comm *	comm,
		int	n,
		const double *	b,
		double *	x
	)

Conjugate-gradient solver: requires symmetric positive definite matrix.

Definition at line 78 of file cg.C.

References int, ILSI_Param::iterations, ILSI_Param::maxIterations, ILSI_Param::maxResidual, and ILSI_Param::residual.

Referenced by main().

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