ILSI_Comm Class Reference

An ILSI_Comm is an ILSI_Solver's interface to the (parallel) problem matrix and communication system. More...

#include <ilsi.h>

Inheritance diagram for ILSI_Comm:


Public Member Functions
virtual	~ILSI_Comm ()
	Iterative Linear Solver Interface.
virtual void	matrixVectorProduct (const double src, double dest)=0
	Compute dest = A src, where A is the square matrix.
virtual double	dotProduct (const double a, const double b)=0
	Do a global dot product of these two vectors.

Detailed Description

An ILSI_Comm is an ILSI_Solver's interface to the (parallel) problem matrix and communication system.

Definition at line 33 of file ilsi.h.

Constructor & Destructor Documentation

ILSI_Comm::~ILSI_Comm ( ) [virtual]

Iterative Linear Solver Interface.

Orion Sky Lawlor, olawlor@acm.org, 1/16/2003

Definition at line 8 of file ilsi.C.

Member Function Documentation

virtual void ILSI_Comm::matrixVectorProduct	(	const double *	src,
		double *	dest
	)			`[pure virtual]`

Compute dest = A src, where A is the square matrix.

This product must take into account values from other chunks, as well as this one. This is a collective call. It is not valid for src to equal dest.

Implemented in IFEM_Solve_shared_comm, and serial_comm.

Referenced by cgSolver::cgSolver(), and cgSolver::iterate().

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virtual double ILSI_Comm::dotProduct	(	const double *	a,
		const double *	b
	)			`[pure virtual]`

Do a global dot product of these two vectors.

This dot product must take into account values from other processors. It is valid for a to equal b. All chunks are guaranteed to get the same return value.