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Class juice.solver.CGPrecondSolver 

java.lang.Object
   |
   +----juice.solver.IterativeSlv
           |
           +----juice.solver.CGPrecondSolver
public class CGPrecondSolver
extends IterativeSlv
implements LinearSolver
Conjugate Gradient Solver.


By decomposing the calculations into several routines, CGPrecondSolver is made to be subclassed, so that slight modifications to the standard behavior can be made.

Variable Index

o M
o res
o reset
o rtrNew

Constructor Index

o CGPrecondSolver(Iterator, Operator)
o CGPrecondSolver(Operator)

Method Index

o doOneStep(Vector, Vector, Vector)
o getNormResidual()
o getResidual()
o setReset(int)
after each reset-th iteration I compute the exact residual to remove accumulated floating point error (default is 50).
o solve(Operator, Vector, Vector)
Solves Ax = b for x
"Solve" is used in a loose sense.

Variables

o M 
 protected Operator M
o res 
 protected Vector res
o rtrNew 
 protected float rtrNew
o reset 
 protected int reset

Constructors

o CGPrecondSolver 
 public CGPrecondSolver(Operator preconditioner)
o CGPrecondSolver 
 public CGPrecondSolver(Iterator iterator,
                        Operator preconditioner)

Methods

o setReset 
 public void setReset(int reset)
after each reset-th iteration I compute the exact residual to remove accumulated floating point error (default is 50).

o getResidual 
 public Vector getResidual()
Overrides:
getResidual in class IterativeSlv
o getNormResidual 
 public float getNormResidual()
Overrides:
getNormResidual in class IterativeSlv
o solve 
 public void solve(Operator A,
                   Vector b,
                   Vector x)
Solves Ax = b for x
"Solve" is used in a loose sense.

Overrides:
solve in class IterativeSlv
o doOneStep 
 protected void doOneStep(Vector s,
                          Vector v,
                          Vector p)

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