qp4.py

Functions
	qp4.QPModelData.buildModel (self)
	adding the variables and constraints to the model
	qp4.QPModelData.setLagrangianStructure (self)
	define the lagrangian structure and supplies it to CONOPT
	qp4.QPModelData.evaluateNonlinearTerm (self, x, rowno, ignerr, thread)
	callback method for evaluating the nonlinear terms in a given row
	qp4.QPModelData.evaluateNonlinearJacobian (self, x, rowno, jacnum, ignerr, thread)
	callback method for evaluating the jacobian for the nonlinear terms in a given row
	qp4.QPModelData.evaluateDirectionalSD (self, x, dx, rowno, jacnum, thread)
	computes the directional second derivative for a single constraint
	qp4.QPModelData.evaluateSDLagrangian (self, x, u, hessianrow, hessiancol)
	Computes and returns the numerical values of the Lagrangian of the Hessian.

Detailed Description

A combination of qp2 and qp3.

For more information about the individual callbacks, please have a look at the source code.

Function Documentation

buildModel()

qp4.QPModelData.buildModel

(

self

)

adding the variables and constraints to the model

Definition at line 31 of file qp4.py.

setLagrangianStructure()

qp4.QPModelData.setLagrangianStructure

(

self

)

define the lagrangian structure and supplies it to CONOPT

Definition at line 62 of file qp4.py.

evaluateNonlinearTerm()

qp4.QPModelData.evaluateNonlinearTerm	(		self,
			x,
			rowno,
			ignerr,
			thread )

callback method for evaluating the nonlinear terms in a given row

Parameters

x	the solution vector that needs to be evaluated.
rowno	the number for the row in which the nonlinear term exists.
ignerr	a boolean to indicate whether the current point is safe or unsafe.
thread	the index of the thread from which this method is being called from.

Returns

the value of the nonlinear terms.

Notes: an error in the evaluation is reported by calling errorInEvaluation()

Definition at line 77 of file qp4.py.

evaluateNonlinearJacobian()

qp4.QPModelData.evaluateNonlinearJacobian	(		self,
			x,
			rowno,
			jacnum,
			ignerr,
			thread )

callback method for evaluating the jacobian for the nonlinear terms in a given row

Parameters

x	the solution vector that needs to be evaluated.
rowno	the number for the row in which the nonlinear term exists.
jacnum	vector with a list of column numbers for the nonlinear nonzero Jacobian elements in the row.
ignerr	a boolean to indicate whether the current point is safe or unsafe.
thread	the index of the thread from which this method is being called from.

Returns

a vector the length of jacnum that contains the jacobian values for the referenced elements.

Notes: an error in the evaluation is reported by calling errorInEvaluation()

Definition at line 101 of file qp4.py.

evaluateDirectionalSD()

qp4.QPModelData.evaluateDirectionalSD	(		self,
			x,
			dx,
			rowno,
			jacnum,
			thread )

computes the directional second derivative for a single constraint

Parameters

x	the solution vector that needs to be evaluated.
dx	vector with the direction in which the directional second derivatives should be computed.
rowno	the number for the row in which the nonlinear term exists.
jacnum	vector with a list of column numbers for the nonlinear nonzero Jacobian elements in the row.
thread	the index of the thread from which this method is being called from.

returns a vector for the directional second derivative. The length of the vector is the number of variables.

Notes: an error in the evaluation is reported by calling errorInEvaluation()

Definition at line 116 of file qp4.py.

evaluateSDLagrangian()

qp4.QPModelData.evaluateSDLagrangian	(		self,
			x,
			u,
			hessianrow,
			hessiancol )

Computes and returns the numerical values of the Lagrangian of the Hessian.

Parameters

x	the solution vector that needs to be evaluated.
u	the vector of weights on the individual constraints.
hessianrow	vector of row numbers of the lower triangular part of the hessian.
hessiancol	vector of column numbers of the lower triangular part of the hessian.

returns a vector for the values of the Lagrangian of the Hessian. The length of the vector is of size numHessianNonzeros().

Notes: an error in the evaluation is reported by calling errorInEvaluation()

Definition at line 130 of file qp4.py.