Package org.ejml.dense.row.linsol.lu

Class LinearSolverLuKJI_DDRM

java.lang.Object

org.ejml.dense.row.linsol.LinearSolverAbstract_DDRM

org.ejml.dense.row.linsol.lu.LinearSolverLuBase_DDRM

org.ejml.dense.row.linsol.lu.LinearSolverLuKJI_DDRM

All Implemented Interfaces:

org.ejml.interfaces.linsol.LinearSolver<org.ejml.data.DMatrixRMaj,org.ejml.data.DMatrixRMaj>, org.ejml.interfaces.linsol.LinearSolverDense<org.ejml.data.DMatrixRMaj>

public class LinearSolverLuKJI_DDRM
extends LinearSolverLuBase_DDRM

To avoid cpu cache issues the order in which the arrays are traversed have been changed. There seems to be no performance benit relative to LinearSolverLu_DDRM in this approach and b and x can't be the same instance, which means it has slightly less functionality.

Field Summary

Fields inherited from class org.ejml.dense.row.linsol.lu.LinearSolverLuBase_DDRM

decomp

Fields inherited from class org.ejml.dense.row.linsol.LinearSolverAbstract_DDRM

A, numCols, numRows

Constructor Summary

Constructors

Constructor	Description
LinearSolverLuKJI_DDRM(LUDecompositionBase_DDRM decomp)

Method Summary

Modifier and Type	Method	Description
boolean	setA(org.ejml.data.DMatrixRMaj A)
void	solve(org.ejml.data.DMatrixRMaj B, org.ejml.data.DMatrixRMaj X)	An other implementation of solve() that processes the matrices in a different order.

Methods inherited from class org.ejml.dense.row.linsol.lu.LinearSolverLuBase_DDRM

getDecomposition, improveSol, invert, modifiesA, modifiesB, quality

Methods inherited from class org.ejml.dense.row.linsol.LinearSolverAbstract_DDRM

_setA, getA

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

LinearSolverLuKJI_DDRM

public LinearSolverLuKJI_DDRM(LUDecompositionBase_DDRM decomp)

Method Details

setA

public boolean setA(org.ejml.data.DMatrixRMaj A)

Specified by:

setA in interface org.ejml.interfaces.linsol.LinearSolver<org.ejml.data.DMatrixRMaj,org.ejml.data.DMatrixRMaj>

Overrides:

setA in class LinearSolverLuBase_DDRM

solve

public void solve(org.ejml.data.DMatrixRMaj B,
 org.ejml.data.DMatrixRMaj X)

An other implementation of solve() that processes the matrices in a different order. It seems to have the same runtime performance as solve(org.ejml.data.DMatrixRMaj, org.ejml.data.DMatrixRMaj) and is more complicated. It is being kept around to avoid future replication of work.

Parameters:

B - A matrix that is n by m. Not modified.

X - An n by m matrix where the solution is writen to. Modified.