cern.colt.matrix.tdouble.algo.solver

Interface DoubleIterativeSolver

All Known Implementing Classes:

AbstractDoubleIterativeSolver, DoubleBiCG, DoubleBiCGstab, DoubleCG, DoubleCGLS, DoubleCGS, DoubleChebyshev, DoubleGMRES, DoubleHyBR, DoubleIR, DoubleMRNSD, DoubleQMR

public interface DoubleIterativeSolver

Iterative linear solver. Solves Ax=b for x, and it supports preconditioning and convergence monitoring.

Method Summary

Modifier and Type	Method and Description
DoubleIterationMonitor	getIterationMonitor() Gets the iteration monitor
DoublePreconditioner	getPreconditioner() Gets preconditioner
void	setIterationMonitor(DoubleIterationMonitor iter) Sets iteration monitor
void	setPreconditioner(DoublePreconditioner M) Sets preconditioner
DoubleMatrix1D	solve(DoubleMatrix2D A, DoubleMatrix1D b, DoubleMatrix1D x) Solves the given problem, writing result into the vector.

Method Detail

solve

DoubleMatrix1D solve(DoubleMatrix2D A,
                     DoubleMatrix1D b,
                     DoubleMatrix1D x)
              throws IterativeSolverDoubleNotConvergedException

Solves the given problem, writing result into the vector.

Parameters:

A - Matrix of the problem

b - Right hand side

x - Solution is stored here. Also used as initial guess

Returns:

The solution vector x

Throws:

IterativeSolverDoubleNotConvergedException

setPreconditioner

void setPreconditioner(DoublePreconditioner M)

Sets preconditioner

Parameters:

M - Preconditioner to use

getPreconditioner

DoublePreconditioner getPreconditioner()

Gets preconditioner

Returns:

Current preconditioner

setIterationMonitor

void setIterationMonitor(DoubleIterationMonitor iter)

Sets iteration monitor

Parameters:

iter - Iteration monitor

getIterationMonitor

DoubleIterationMonitor getIterationMonitor()

Gets the iteration monitor

Returns:

Current iteration monitor